Search

Copyright of Nachrichten aus der Chemie is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Nachrichten aus der Chemie is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Nachrichten aus der Chemie is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The article wants to show the connection between the enriched personal papers of Emil von Behring (1854-1917) in the Behring archives in Marburg (established in 1927) and the history of the first biography of the scientist, which was published by Heinz Zeiss and Richard Bieling during Nazi era in 1940. One focus is placed on Behring's widow Else von Behring (1876-1936), who was active in arranging Behring's papers in proper order and in searching a biographer of her husband's life. The paper also presents new discoveries from the Behring Works archives in Marburg which show Behring - founder of the serum therapy and first winner of the Nobel Prize for medicine in 1901 - as an entrepreneur who was fighting for control and influence in the field of science and of business: maybe another narration of Behring's life. [ABSTRACT FROM AUTHOR]

Translation abstract A mechanically consistent approach for stability verification of timber beams in compression and bending around the strong axis – part 2: experimental tests and numerical simulationSlender timber beams in bending can be designed using different methods in view of out‐of‐plane stability. Lateral torsional buckling may be verified either using the so called equivalent member method or by means of 2nd order calculations, considering equivalent imperfections. Applying current codes, however, determining the lateral torsional buckling resistance using either of these both methods, leads to different results. In this paper, the background of both verifications is investigated in deep. Moreover, as an alternative approach, a non‐linear calculation with an imperfection shape in affinity to the critical shape was presented in part 1 of this paper. By scaling the curvature, the same results as by the equivalent member method can be achieved. It was shown that plasticity effects can be considered as well. In this part 2, results of lateral torsional buckling tests on glued laminated timber beams are presented, with nearly ideal boundary conditions and load direction remaining vertical through‐out the test. Based on these test first tentative values can be obtained for the imperfection compatible with the alternative lateral torsional buckling approach presented. [ABSTRACT FROM AUTHOR]

Wind from all directions Wind loads on membrane structures are not regulated by standards. The variety of shapes of the typically open and thus flow‐exposed surfaces on both sides cannot be captured using geometric variables in tables, as is common for typical building forms in Eurocode EN 1991‐1‐4. The recommended individual wind tunnel tests are only feasible for larger projects with the corresponding budgets and planning periods. Therefore, some recommendations for typical membrane roofs have been collected in the literature, and at the same time, computer‐based wind simulations have developed to the extent that they are now also offered in market‐standard FEM software packages. This paper aims to explain the accuracy and comparability of the various approaches using case studies. The paper presents the analysis of standard approaches, literature values, wind tunnel tests, and computer‐based methods with a comparison of calculation results and provides insights into the development of load assumptions in membrane construction. [ABSTRACT FROM AUTHOR]

Linus Pauling's work was intrinsically linked to visualizations. While his use of three- and two-dimensional inscriptions has been the focus of much scholarly research, the production of visualizations remains a rather poorly studied subject. This article focuses on the cooperation between Pauling and Roger Hayward, an architect by profession who came to scientific illustration in the late 1920s. By concentrating on the papers of Pauling and Hayward I describe the workflow between scientist and illustrator. Although Hayward's visualizations were epistemically indispensable and economically profitable, they were never fully acknowledged as such. This was due to the ongoing conflicts caused by the economic strategies pursued by Pauling and his publisher, Hayward's personal style, and science's general disregard for images as epistemic instruments. I suggest that these contentious relationships between scientist, illustrator, and publisher are paradigmatic for the history of scientific visualization. [ABSTRACT FROM AUTHOR]

Copyright of Beton- Und Stahlbetonbau is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Hydrochimica et Hydrobiologica is the property of Wiley-VCH Verlag and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Zur wirtschaftlichen Nutzung saurer Tagebaurestseen sind zur Erarbeitung von Sanierungskonzepten und zu deren Anwendung detaillierte Kenntnisse hinsichtlich Wasserkörper und Sediment notwendig. Die vorliegende Arbeit hat das Bindungsverhalten und die vertikale Verteilung von ausgewählten Elementen (Aluminium, Blei, Cobalt, Eisen, Kupfer, Mangan, Nickel, Zink) im Sediment des sauren Tagebaurestsees 111 (Niederlausitz) zum Gegenstand. Ziel der Untersuchungen war eine Schätzung des vom Sediment ausgehenden Gefährdungspotentials durch die ausgewählten Metalle. [ABSTRACT FROM AUTHOR]

Die EG-Wasserrahmenrichtlinie gestattet den Mitgliedstaaten die Ausweisung künstlicher und erheblich veränderter Gewässer, für die sich die ökologische Bewertung und die sich daraus ergebenden Maßnahmenprogramme am “höchsten ökologischen Potential” als Bezugsmaßtab (Referenzzustand) und nicht - wie bei natürlichen Gewässern - am “sehr guten ökologischen Zustand” orientieren. Die Ausweisung beschränkt sich auf solche Gewässer, die für bestimmte Nutzungen in ihrer Hydromorphologie erheblich verändert wurden. Die Ausweisungskriterien sind erfüllt, wenn die zur Erreichung des guten ökologischen Zustands erforderlichen Verbesserungsmaßnahmen signifikant negative Auswirkungen auf die Nutzungen hätten und es keine wesentlich besseren Umweltoptionen für die Nutzungen gibt. Zur Präzisierung der Kriterien für die Ausweisung künstlicher und erheblich veränderter Gewässer und die Ermittlung des höchsten ökologischen Potentials wurde Ende 1999 die EU-Arbeitsgruppe HMWB (heavily modified water bodies) eingerichtet. Sie hat im November 2002 eine Leitlinie für die “Identifizierung und Ausweisung künstlicher und erheblich veränderter Gewässer” vorgelegt, die von den europäischen Wasserdirektoren am 21. November 2002 in Kopenhagen verabschiedet wurde. Die Leitlinie sieht zwei Zeithorizonte beim Ausweisungsprozess vor: Die vorläufige Einordnung als “erheblich verändert” soll bis 2004, die rechtlich wirksame Ausweisung als “künstlich” oder “erheblich verändert” im ersten Bewirtschaftungsplan, d. h. spätestens 2009, erfolgen. Wesentlicher Bestandteil der Arbeiten zur Leitlinie waren 34 Fallstudien an Fließgewässern, Seen, Ästuaren und Küstengewässern in 11 verschiedenen europäischen Ländern. Die Ergebnisse der Fallstudien sowie eine zusammenfassende “Synthese” bildeten die Grundlage für die Erstellung der Leitlinie. Die praktischen Beispiele der Fallstudien wurden in einer “Beispielsammlung” (Tool-Box) zusammengestellt, die die Leitlinie zum Zwecke einer besseren Anwendbarkeit ergänzt. [ABSTRACT FROM AUTHOR]

Copyright of Acta Hydrochimica et Hydrobiologica is the property of Wiley-VCH Verlag and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Beton- Und Stahlbetonbau is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Beton- Und Stahlbetonbau is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Bautechnik is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Hydrochimica et Hydrobiologica is the property of Wiley-VCH Verlag and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The current first generation of Eurocodes is a suite of ten European standards for the design of buildings and civil engineering works, whose implementation started in 2010. EN 1990 sets the basis of structural design, with the other Eurocodes dealing with different materials and specific aspects of design. Geotechnical aspects of design are covered by EN 1997 "Geotechnical design", usually called Eurocode 7. The evolution of the Eurocodes started in 2012 and the main objectives of their revision were to incorporate improvements that reflect the state‐of‐the‐art in engineering design and the needs of the civil engineering market, to improve the ease‐of‐use and to harmonize practice between countries. While the original version was developed largely based on soil mechanics, the aim was that the revised version treats soil and rock on an equal basis. The second generation of the Eurocodes is now nearly finished, and the revised EN 1997 is expected to be formally approved in 2024. This paper is the first of a set of six informative papers on the revised Eurocodes and rock engineering, prepared by members of the Rock Engineering Platform of CEN/TC250/SC7, a group of rock engineering experts that has been assisting in drafting EN 1997 from a rock‐engineering perspective. The paper presents the main changes to EN 1990 and EN 1997 as far as they affect geotechnical and rock engineering design. [ABSTRACT FROM AUTHOR]

This paper presents an overview of the contents of 2nd Generation Eurocode 7 Part 2, highlighting two of the major changes introduced, being the Ground Model and the Rock Engineering implementation. The document is organized from a ground property perspective so that the role of Part 2 and the links with the geotechnical design are much clearer than in the previous edition. Its new title is a clear indication of this idea: "Ground properties" including both soil and rock properties. The need to have representative values for the ground properties is the objective of this new Part 2, which is intended to guide designers on the path to obtain those values by means of the Desk Study, Site Inspection, Field Investigation and Laboratory Testing. Given this framework, the paper explains the concepts behind the Ground Model, the main output of the Ground Investigation, which includes the ground profile, the geometric properties of the ground and its layers, groundwater, and the derived values of the ground properties, paying attention of the role of discontinuities in such ground profile. The tasks that form the Ground Investigation and the minimum number of activities to be performed are described. This new version of EN 1997 will include a Rock Engineering perspective for all above items. And finally, the ground properties of the rock material and the rock mass are listed and discussed. [ABSTRACT FROM AUTHOR]

Translation abstract Calculation model for thermal pre‐stressing of subsequently added reinforcementKey technical limitation of many strengthening measures is that they are not effective for the structure‘s self‐weight. As a solution, a targeted tempering of reinforcing bars put into respective slots is proposed for statically determinate load‐bearing structures. The aim is to thermally pre‐stress the bars, which are embedded in a grouting material, and to balance their strain to that of the initial reinforcement. The bond with the grout prevents the bars from re‐forming when cooling after heating is stopped. This creates pre‐stress that neutralizes the bending moment from the self‐weight and relieves the tensile zone of the cross‐section. In the paper, an analytical calculation model for the strengthening approach is presented and derived. This is verified through numerical calculations and a first experimental realization. The main factors influencing the effectiveness of the strengthening measure are analyzed in parameter studies. The results show that the thermal pre‐stressing of subsequently added reinforcing bars is effectively possible. Depending on the actual boundary conditions, the calculation predicts the strengthening effect with an accuracy of 80–97 %. The accuracy increases with the height and a lower initial temperature and a lower thermal conductivity of the concrete in the initial cross‐section. [ABSTRACT FROM AUTHOR]

Translation abstract Process‐accompanying derivation of mechanical properties of high‐strength concretes during rapid productionThe prefabrication of reinforced concrete components bears considerable advantages over conventional in‐situ concrete construction. For instance, an integration of rapid heat treatment allows the processing time in rapid production to be reduced to just a few hours. Treatment time and temperature affect the development of the mechanical properties most. Control of the latter ensures the quality of the components. For concrete components, destructive tests on accompanying samples are common. In this paper, a method is developed with which compressive strength, modulus of elasticity and bond strength can be derived from testing integrated in the production process. The suitability of rebound hammer testing is analysed, taking into account the boundary conditions of heat treatment. Experiments are used to determine the specified target values for the high‐strength Nanodur concrete during production with varying times of heat treatment. The experimental results are compared to the ones derived from standardised correlations. In this way, a model is formed with which primarily the compressive strength and along with it the modulus of elasticity and the bond strength are obtained. The method is discussed against the experimental and theoretical findings. Its application is demonstrated on a simple example and recommendations for checking the mechanical properties in rapid production practically are provided. [ABSTRACT FROM AUTHOR]

Translation abstract Linking nano with macro – opportunities for steel constructionNanostructured metallic multilayers have significantly higher strength, fatigue resistance and ductility than monolithic homogeneous metal cross sections. The superior structural properties of these nanostructured cross sections are known, and so it is surprising why no attempt has been made to date to use nanostructured cross sections in macro cross sections in structural engineering to improve the cross section properties. This paper links the advantages of nanostructured multilayers with the needs of homogeneous metallic macro‐cross sections and examines the question of the extent to which the high‐performance material nanolaminate can compensate for the structural weak points of metallic infrastructure. The following weak points of metallic infrastructure are addressed: 1) the welded connection subjected to fatigue and corrosion, 2) additively printed metallic cross sections exposed to fatigue and corrosion. The article provides food for thought on how nanostructured multilayer can potentially contribute to the future of steel construction. As an example, the design and maintenance of cyclically loaded metallic infrastructure structures, such as bridges and offshore wind turbines, are discussed and it is shown how sustainability, resource conservation, reduction of the CO2 footprint, availability, security of supply and economic viability of steel infrastructure structures can potentially be achieved. [ABSTRACT FROM AUTHOR]

Translation abstract Investigations on the liquefaction resistance of an open‐cast lignite mine soil under loading by earthquake‐typical signalsFor the embankments of the planned opencast mining lakes in the Rhenish mining area, the proof of the stability under earthquake action must be provided. According to the guideline for the investigation of the stability of slopes in lignite opencast mines (RfS – Richtlinie für Standsicherheitsuntersuchungen [1]), the permanent slopes must be designed and constructed in such a way that a soil liquefaction is not to be expected. For the proof, in which actions and soil resistances are locally compared with each other, the irregular earthquake signal is converted into a regular signal with an equivalent number of cycles and constant amplitude. In this paper, this conversion is investigated for a typical earthquake signal of the Rhenish area, which was obtained from a dynamic finite element calculation. Triaxial tests with vertical cyclic loading and hollow cylinder triaxial tests with cyclic torsional loading are performed to investigate the liquefaction behaviour of an opencast mine soil under the influence of this earthquake signal. The results of these tests are compared with data from further tests with constant amplitude. It can be shown that the factor β for converting irregular to regular signals depends on the type of loading and the magnitude of the static shear or deviatoric stress. On the basis of the experiments, recommendations for the choice of β for the Rhenish mining area are given. [ABSTRACT FROM AUTHOR]

Translation abstract Safety assessment of buildings constructed in large, slow moving landslidesLarge slow moving landslides (SMLS) with typical deformation rates in a range of some mm to several dm per year and volumes of several 100,000 m3 to more than 100 mio. of m3 are common phenomenon in Alpin regions. Settlement areas, infrastructural buildings, bridges, tunnels, water reservoirs as well as protective structures are influenced in many cases by such SMLS. Whereas small landslides can be stabilized by support measures in a way that factors of safety acc. to standards can be proofed, this is often not possible for large landslides due to technical and economical reasons. In this paper, alternative verification procedures and assessment methods for building constructions in such SMLS and possible discrepancies to requirements of actual standards are discussed. Based on previous experience with practical examples, specific assessment criteria for an assessment of the use of settlement areas and structural facilities in SMLS are given depending on the change in the safety factor ΔFOS, the changes in movement rates, sensitivity analyses and the observation method. [ABSTRACT FROM AUTHOR]

Digitalisation of the process of design review The implementation of the building permit process in digital form enables a complete paperless design review. Thereby, both static calculation and construction plans can be reviewed without media discontinuity, which is why an acceleration of the process can be expected. The transition from paper to PDF represents a significant progress for the parties involved. In terms of digitalisation level, it is only the beginning. The highest level of digitalisation will be achieved by using BIM (Building Information Modeling) within Common Data Environments (CDE). Since the BIM method offers significant advantages in the design, construction and operation of buildings, further propagation in the practice can be expected. Moreover, its use is already partly forced by federal and state governments. Impacts on the design review and the issuing of a building permit are therefore to be expected. In this article, it is investigated how digitalised design review processes can be structured. The processes are presented and evaluated in terms of their maturity level of digitalisation. [ABSTRACT FROM AUTHOR]

BIM‐based assessment of sustainable maintenance measures for existing building structures In Germany, around 70 % of all building construction work is done on existing buildings. This high proportion emphasizes the need for the maintenance management of buildings. For this purpose, digital methods and technologies are combined with integrating sustainability aspects for optimized decision‐making. In this paper, a holistic method for the building maintenance is developed by using the BIM‐method in combination with the integration of sustainability aspects. Different digital technologies are combined within a semi‐automated workflow. In the first step, the status quo of digital maintenance on reinforced concrete structures is analyzed in a literature review. Subsequently, the process‐related and data‐technical basics are defined. Based on this, the concept development and validation are carried out by holding the steps ‐ data acquisition, an algorithmic data process and sustainability analysis as well as data provision via augmented reality and a common data environment. At the end, the process steps are validated using a real demonstrator. The result of the article demonstrates a semi‐automated process chain and decision support for resource‐efficient maintenance management of reinforced concrete structures. [ABSTRACT FROM AUTHOR]

Translation abstract Data‐driven assistant for the design of offshore jacket substructuresAs the power output of offshore wind turbines increases, more and more influencing factors in the different life phases of the support structure become relevant to improve feasibility, economic viability, and provability. Conventional design methods for offshore wind turbines are complex and expensive. Conventional conceptual designs often rely on the expertise and intuition of engineers, creating a risk of bias due to insufficient design information at the beginning of a project. To minimize this risk, this paper develops a data‐driven method to simplify conceptual support structure design. The method is realized by analyzing a self‐generated global database of existing wind farms. As an example, the data‐driven method is implemented and evaluated for the conceptual design of offshore jacket substructures. It shows that the rated power of the turbine and the water depth of the wind farm should be considered as two structural parameters for the conceptual design of jacket structures for offshore wind turbines. Thus, the process is simplified and made more economical. The result forms the basis for the overall offshore wind turbine‘s detailed design and structural implementation. [ABSTRACT FROM AUTHOR]

Consideration of groundwater in the recommendations on excavations (EAB) In the paper the development of the investigation of safety for excavations in groundwater is described from the beginning in the 1960s up to now. The decisive standard are the recommendations on excavations (EAB), meanwhile in the 6th edition. In the contribution not only the recommendations itself are discussed, but also the underlying scientific research work. [ABSTRACT FROM AUTHOR]

Air entraining concrete with superabsorbent Polymers (SAP) – Part 1: fresh concrete properties Superabsorbent polymers (SAP) have the ability to absorb many times their own dry weight in aqueous solution. In the literature, thus the usage of SAP for (internal) concrete curing has been described. SAP store water in fresh concrete and release it again during hydration. As a result of the water release, the polymers shrink and corresponding macropores remain in the microstructure. SAP thus offer the chance to be used as an alternative to classical air‐void entraining agents for increasing the frost‐ and freeze‐thaw resistance of concretes. The paper at hand describes and discusses systematic investigations on the application of superabsorbent polymers in air‐entrained concrete as an alternative to classical air‐entraining agents. In Part 1 of the article, the results of the experimental investigations regarding the fresh concrete properties are presented. The focus hereby was laid on studying the resulting changes in the rheological properties and the tendency to segregation (sedimentation of the coarse aggregate and bleeding tendency) of the fresh concrete when superabsorbent polymers are employed. Further parts describe the hardened concrete properties (Part 2) and the robustness against practical material and environmental fluctuations (Part 3) of concretes with SAP. [ABSTRACT FROM AUTHOR]

Structural stability tests on two‐span channel members in bending, axial compression and torsion The use of slender steel members promotes the competitiveness of steel structures in structural engineering. However, these members often necessitate stability verifications. Global research activities in this field have so far mainly focussed on single‐span members with doubly symmetric cross‐sections. For mono‐symmetric sections such as channels, only a few design models exist based on experimental evidence. Moreover, the potential of structural systems such as multi‐span members is yet not entirely exploited in the normative verification models. Therefore, this paper presents a comprehensive experimental study on the stability behaviour of two‐span members with steel channels under combined loading. Five‐point bending tests were conducted to determine the load‐bearing capacities and to experimentally analyse the influence of the constructional detail of the central support, the axial load, the slenderness ratio and other parameters on the load‐bearing behaviour. The article provides the scientific basis for extending the scope of the stability verification for members subjected to bending, axial compression and torsion in Annex C.2 of the novel EN 1993‐1‐1:2022 to two‐span channel members. [ABSTRACT FROM AUTHOR]

Load‐bearing and fatigue behaviour of butt welds in plates of different thicknesses The cross‐section of long‐span steel structures is usually adapted to the bending moment distribution. For this purpose, a thickness transition is applied in the area of butt‐welded joints in flanges of I‐shaped beam members. The fatigue behaviour of these constructional details is complex and differs from a butt‐welded joint in steel plates of the same thickness. This paper presents the results of 30 notch detail tests and compares the behaviour of butt‐welded joints in plates with a thickness transition with those of the same thickness. The statistical analysis of the experimental studies shows a higher fatigue resistance for butt‐welded joints with a thickness transition compared to butt welds of plates of the same thickness. The classification of the latter constructional detail in detail category 90 acc. to FprEN1993‐1‐9:2024 can be confirmed. The prognosis of the notch detail tests with the Two‐Stage‐Model confirms its applicability for the analytical‐numerical prediction of the service life of complex welded constructional details. In addition, the application of the model proves the influence of the thickness ratio and stress ratio on the service life of butt‐welded joints with thickness transition. [ABSTRACT FROM AUTHOR]

Copyright of Geotechnik is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Geotechnik is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Beton- Und Stahlbetonbau is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Beton- Und Stahlbetonbau is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chemie Ingenieur Technik (CIT) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Projects Starting the second tunnel boring machine at the Brenner construction site Sillschlucht‐Pfons / Andrehen der zweiten Tunnelbohrmaschine am Brenner‐Baulos Sillschlucht‐Pfons Contracts for caverns and gallery system for Forbach pumped storage power station awarded / Kavernen und Stollensystem für Pumpspeicherkraftwerk Forbach beauftragt Brenner north approach: gallery construction between Schaftenau and Radfeld / Brenner‐Nordzulauf: Stollenbau zwischen Schaftenau und Radfeld First part of the Fehmarnbelt tunnel concreted / Erster Teil des Fehmarnbelt‐Tunnels betoniert EU funds Brenner Base Tunnel with another 700 million euros / EU fördert Brenner Basistunnel mit weiteren 700 Mio. Euro Four international consortia have been selected for railway equipment of the Fehmarnbelt Tunnel / Vier internationale Konsortien für bahntechnsiche Ausrüstung des Fehmarnbelt‐Tunnel ausgewählt Porr wins a major contract for the SuedLink Elbe crossing / Porr gewinnt Großauftrag für SuedLink Elbquerung Lucerne through station: preliminary project completed / Durchgangsbahnhof Luzern: Vorprojekt abgeschlossen Call for papers – Topics for the next issues of Geomechanics and Tunnelling / Themen für die nächsten Ausgaben der „Geomechanics and Tunnelling" [ABSTRACT FROM AUTHOR]

Copyright of Beton- Und Stahlbetonbau is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Beton- Und Stahlbetonbau is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Bautechnik is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Beton- Und Stahlbetonbau is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Beton- Und Stahlbetonbau is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Beton- Und Stahlbetonbau is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Beton- Und Stahlbetonbau is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Bautechnik is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Bautechnik is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Geotechnik is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Translation abstract Deformation monitoring of bridges applying remote sensing satellite radar measurementsDeformations of the Earth's surface can be measured from space using remote sensing radar interferometry (InSAR). This paper demonstrates the use of these data for deformation monitoring on the Schottwienbrücke‐S6 Semmering motorway. The European Space Agency (ESA) recently began providing free research satellite data from the Sentinel‐1 mission. The approach uses historically recorded natural reflection points as well as corner reflectors artificially attached to the structure. These are measured coordinately and analyzed using remote sensing methods. Thermal displacements of the structure are compensated to increase accuracy. A new model predicts the temperature of the structure based on network weather data. This means that the deformation measurements from the satellites can be analyzed and thermally compensated without sensors on the building, and the deviations can be more than halved. The recorded and processed annual measurements from 2022 onwards show a standard deviation of 1.7 to 3.0 mm compared to the reference system (Liquid Leveling System). Good agreement with the long‐term settlement behavior of the bridge was also found for natural reflection points. Satellites can also be used to simultaneously record different structures at 6‐day intervals up to 2016. Due to the time‐delayed processing, they are currently well suited for long‐term deformation monitoring of long‐span bridges. [ABSTRACT FROM AUTHOR]