Search

Copyright of Journal of Vibration, Measurement & Diagnosis is the property of Nanjing Hangkong Daxue 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 Journal of Railway Science & Engineering is the property of Journal of Railway Science & Engineering Editorial Office 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.)

To explore the dynamic response characteristics of multi-anchor circular anti-slide piles (hereinafter referred to as multi-anchor circular piles) to reinforce landslide, this study carried out shaking table tests with a generalized geological model as a case, and obtained multi-attribute data such as acceleration and dynamic earth pressure of multi-anchor circular piles, under the action of different seismic intensities. The macroscopic catastrophic evolution process of the slope and the regional response characteristics of the acceleration are elucidated. Recommendations are put forward for the practical application of multi-anchor circular piles in high intensity areas based on the force response data of pile and anchor cable structures. The results show that there are significant differences in the catastrophic mechanical mechanism and acceleration response of different parts of the slope under the influence of the coupling and mutual feedback effect of seismic force, sliding surface and pile reaction force. Under the earthquake action of more than 0.2 g, the acceleration amplification factor (MPGA) of the pile decreases with the increase of seismic intensity, and the anchor cable structure greatly reduces the risk of toppling or breaking of the anti-slide pile. In practical engineering, the anchor cable structure should adopt the progressive compensation design principle, and the reasonable distribution of the resistance of the pile anchor structure can give full play to its reinforcement performance. [ABSTRACT FROM AUTHOR]

Copyright of Transportation Science & Technolgy is the property of Transportation Science & Technology Editorial Office 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.)

To enhance the safety of railway tunnels with diseases in high seismic areas, a tunnel inspection vehicle was used to test 29 high-speed railway tunnel linings for voids behind them. The influence of voids on the safety of tunnel structures was studied using the finite difference method. The results indicate that voids behind the lining of high-speed railway tunnels are prone to occur at the arch crown, accounting for 80. 00% of occurrences. The most frequent range of longitudinal length for voids is from 2 m to 4 m, representing 46. 49% of occurrences. The minimum distance between voids and the lining surface is mainly distributed in the range of 0. 3 m to 0. 55 m, accounting for 78. 93%. Voids are often associated with defects in the thickness of the lining. Voids behind the lining alter the contact state between the surrounding rock and support, leading to changes in the inertial force and forced displacement of the structure. Displacement and stress states subsequently change. Voids result in changes in the internal forces of the structure in their respective locations, reducing the safety factor of the structure by 19. 51% to 95. 27%. As the void's circumferential angle, radial depth, and longitudinal length increase, the safety factor of the structure decreases. The cavity behind the lining will significantly reduce the seismic safety of high-speed railway tunnel lining. The research findings can provide a reference for seismic defense measures for high-speed railway tunnels with defects. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Geodesy & Geodynamics (1671-5942) is the property of Editorial Board Journal of Geodesy & Geodynamics 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 Urban Mass Transit is the property of Urban Mass Transit Editorial Office 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 Engineering Mechanics / Gongcheng Lixue is the property of Engineering Mechanics Editorial Department 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 Engineering Mechanics / Gongcheng Lixue is the property of Engineering Mechanics Editorial Department 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 Transportation Science & Technolgy is the property of Transportation Science & Technology Editorial Office 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.)

南郭寺南山佛法身舍利塔是一幢新建于高设防烈度地区山坡平地上的仿古塔建筑，设计使用年限为100年，其建筑造型和结构体系比常规建筑稍复杂。首先通过动力特性分析得到塔的自振周期和振动模态，而后基于振型分解反应谱法和时程分析法，采用有限元软件midas Gen对结构在小震、中震和大震作用下的地震响应进行了数值分析。因为在结构总说明中，只用到了设计使用年限为50年的地震作用，而未将其调整为100年，所以分析中均取2组地震动参数，即设计使用年限50年和100年。小震和中震的地震响应计算均采用弹性法，分析结果满足结构抗震性能要求。大震响应计算时，振型分解反应谱法中将特征周期提高了0.05 s，弹塑性时程分析采用塑性铰滞回模型，最大层间位移角均小于限值1/100。弹塑性时程分析还表明，内核心筒剪力墙的塑性铰发展和屈服程度均比外框架严重，但结构总体处于存在明显塑性变形至不严重破坏的状态，满足“大震不倒”的抗震性能要求。总的来说，南郭寺南山佛法身舍利塔抗震性能安全可靠，其结构体系对于类似仿古塔建筑的结构选型和设计富有借鉴意义。

Copyright of Railway Construction Technology is the property of Railway Construction Technology Editorial Office 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 Reviews of Geophysics & Planetary Physics is the property of Editorial Office of Reviews of Geophysics & Planetary Physics 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 Railway Standard Design is the property of Railway Standard Design Editorial Office 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.)

Compared to the general layered sites, the seismic resistance and mitigation of underground structures in site with weak interlayer are more prominent. Taking the double-story and double-span rectangular frame subway station structure as the research object, based on the finite element software ABAQUS, a static and dynamic finite element analysis model of the soil-structure system was established. The influence of weak interlayer on the seismic response law of the subway station structure was studied, and the seismic mitigation effect of the station structure with friction pendulum bearings in homogeneous and weak interlayer sites was compared and analyzed. The results show that when the weak interlayer passes through the structure of a subway station, a notable increase in overall deformation, central column deformation, and internal forces at the base of the central column is brought about. Moreover, as the thickness of the interlayer increases, the increase in structural deformation and internal force becomes more significant. The installation of friction pendulum bearings at the top of the central column reduces the maximum displacement and internal force values of the central column, and the seismic mitigation effect of the friction pendulum bearings in sites with weak interlayer is significantly better than that in general homogeneous sites. The friction pendulum bearings are recommended to be used for seismic mitigation design in underground structures in sites with weak interlayer [ABSTRACT FROM AUTHOR]

Copyright of Fly Ash Comprehensive Utilization is the property of Hebei Fly Ash Comprehensive Utilization Magazine Co., Ltd. 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 Transportation Science & Technolgy is the property of Transportation Science & Technology Editorial Office 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 Transportation Science & Technolgy is the property of Transportation Science & Technology Editorial Office 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.)

Pile sheet wall is a commonly used support measure in landslide control of highways, and the optimization design of its structural parameters is a research focus in engineering construction. Taking the pile sheet wall project of AK0 + 560 ~ AK0 + 660 section of Jianshui (Gejiu) to Yuanyang Expressway in Honghe Prefecture, Yunnan Province as the background, the influence and optimization of three structural parameters of pile embedded length, pile spacing and pile width were studied by combining numerical simulation with grey correlation analysis and orthogonal test design, and finally the stability of the optimized structural parameters under earthquake conditions was verified. The results show that the pile spacing is the main influencing factor, and the correlation between the embedded length and the pile width is similar, which is the secondary influencing factor. The optimal combination of the structural parameters of the pile-sheet wall is the pile embedded length of 15. 0 m, the pile spacing of 5. 0 m, and the pile width of 3. 0 m. Under seismic conditions, the earth pressure at the cantilever section of the anti-slide pile, as well as the displacement and settlement difference of the pile body meet the specification requirements, and the slope stability is good. [ABSTRACT FROM AUTHOR]

The spandrel structures of long-span deck-type arch bridges are highly irregular girder-span structures, in which the pounding effects under earthquakes are not only different from ordinary regular girder bridges, but also affected by the deformation of the arch ring. To explore such pounding effects, the multi-scale simulation was carried out to incorporate the three-dimensional pounding-friction model and the plastic damage constitutive relationships of materials. A long-span arch bridge was selected as an example to investigate the pounding behavior and local damage characteristics of adjacent girders at the expansion joints and also between the girder and retainers. Furthermore, the influences of spandrel structure configurations were discussed on the pounding behaviors and the shear response of columns. The results showed that the simply-supported spandrel structure is prone to produce the maximum pounding forces at the expansion joints near the 1/4 spans. The spandrel girders tend to collide eccentrically due to the influence of the spatial deformation developed in the main arch, which causes serious damage to the exterior box girders. Whichever the spandrel structure configuration is adopted, the strongest pounding effect between the girder and retainers is mainly found near the arch apex. The spandrel structure configuration has a significant impact on the pounding behaviors. When the spandrel structure is continuous or piecewise continuous, the pounding forces generated both at the expansions and retainers can be significantly reduced, and the strongest pounding effect near the 1/4 spans can also be avoided. Therefore, the reasonable span distribution and separation of spandrel structures is an effective way to reduce the pounding effects of long-span arch bridges. [ABSTRACT FROM AUTHOR]

Copyright of Fly Ash Comprehensive Utilization is the property of Hebei Fly Ash Comprehensive Utilization Magazine Co., Ltd. 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 Tunnel Construction / Suidao Jianshe (Zhong-Yingwen Ban) is the property of Tunnel Construction Editorial Office 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 Journal of Vibration, Measurement & Diagnosis is the property of Nanjing Hangkong Daxue 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 Transportation Science & Technolgy is the property of Transportation Science & Technology Editorial Office 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 Chinese Journal of Applied Mechanics is the property of Chinese Journal of Applied Mechanics Editorial Office 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 Journal of Harbin Institute of Technology. Social Sciences Edition / Haerbin Gongye Daxue Xuebao. Shehui Kexue Ban is the property of Harbin Institute of Technology 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 Journal of Railway Science & Engineering is the property of Journal of Railway Science & Engineering Editorial Office 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 Journal of Southeast University / Dongnan Daxue Xuebao is the property of Journal of Southeast University Editorial Office 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 Journal of Railway Science & Engineering is the property of Journal of Railway Science & Engineering Editorial Office 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 Railway Construction Technology is the property of Railway Construction Technology Editorial Office 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 Journal of Beijing University of Civil Engineering & Architecture is the property of Journal of Beijing University of Civil Engineering & Architecture Editorial Office 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 Journal of Architecture & Civil Engineering is the property of Chang'an Daxue Zazhishe 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 influence of the incident angle of seismic wave on the seismic response of subway station structure has been paid more and more attention by scholars. There is a critical angle when SV wave is oblique incident. When the critical angle is exceeded, the phase difference between horizontal motion and vertical motion of the site will change, at the same time, the site has a large vertical earthquake action under supercritical angle incidence. However, the influence of these characteristics of SV waves on the seismic response of subway stations under supercritical angle incidence has not been reported publicly. In this paper, the finite element software ABAQUS is used to verify the accuracy of the method based on frequency-domain stiffness matrix to solve the scattering problem of SV waves from underground tunnels at any angle, then the seismic responses of two-story three-span subway station structure under Class II, Class III and Class IV site conditions when SV waves are incident in the range of 0 to 80 degrees are studied. The results show that the site has large horizontal and vertical seismic response at the supercritical angle of SV wave in a hard site, which will significantly increase the axial force amplitude of the central column of the station. Compared with the vertical incident case, the axial force amplitude increases upto 3.28 times maximum. At the same time, when the SV wave is incident near the critical angle, the axial force distribution is significantly different from other cases. The maximum moment and shear force of the central column of the station appear when the seismic wave is perpendicularly incident, and the amplitude of the moment and shear force decreases with the increase of the incident angle of SV wave. The dynamic interaction between the station and the surrounding foundation has a certain increasing effect on the horizontal earthquake action of the station structure, and the softer the site, the more obvious the increasing effect. It is suggested that the vertical incidence and the incidence near the critical angle of SV wave should be regarded as unfavorable conditions for seismic design of subway station structure. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Computational Mechanics / Jisuan Lixue Xuebao is the property of Chinese Journal of Computational Mechanics Editorial Office, Dalian University of Technology 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 Journal of Railway Science & Engineering is the property of Journal of Railway Science & Engineering Editorial Office 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 Journal of Shanghai University / Shanghai Daxue Xuebao is the property of Journal of Shanghai University (Natural Sciences) Editorial Office 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.)

In order to evaluate the seismic performance of a large reinforced concrete aqueduct structure, a three-span double-slot aqueduct of the Middle Route Project of South-to-North Water Transfer was used as an example to establish a finite element model of the aqueduct structure based on the fiber beam element in the OpenSees platform, and a nonlinear dynamic time analysis of the aqueduct structure was performed by the incremental dynamic analysis method considering the different water level conditions in the aqueduct and the randomness of seismic waves. The peak seismic response of each fragile component was obtained and the traditional probabilistic seismic demand analysis method was used to perform linear regression analysis on the analysis data to obtain the seismic fragility curve of the structural components of the aqueduct. The results of the study show that the change of water level in the trough has a greater influence to the seismic response of the aqueduct structure, and the calculation of damage exceedance probability carried out on the trough pier and support shows that the damage exceedance probability of each member grows at the fastest rate under the full trough condition. [ABSTRACT FROM AUTHOR]

Copyright of Southern Energy Construction is the property of Southern Energy Construction Editorial Office 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 Journal of China University of Petroleum is the property of China University of Petroleum 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 Journal of Fuzhou University is the property of Journal of Fuzhou University, Editorial Department 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 Engineering Mechanics / Gongcheng Lixue is the property of Engineering Mechanics Editorial Department 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.)

Many RC(reinforced concrete) frame structures were severely damaged in the Wenchuan earthquake, but the collapse rate of RC frame structures in the extreme earthquake area zone far exceeded that of multi-storey brick and concrete structures. Since September 2022, frequent earthquakes have occurred in Sichuan. It is necessary to re-explore the collapse mechanism and seismic performance. The collapse mechanism and seismic response analysis of RC frame structures were studied by field earthquake damage and failure forms of multi-storey RC frame structures, combining numerical models and using the MIDAS Gen finite element method. The results show that the damage and yielding of the frame columns are the main factors for the RC frame collapsed, the simulation of additional infill walls,when the seismic intensity reaches 10 degrees, the inter-storey displacement angle is about 1 / 46, which reduces the axial compression ratio of columns, improves the damage ductility of columns, increase the limit lateral capacity of the structure, have the effect of seismic first line of defense, to avoid the overall yielding damage [ABSTRACT FROM AUTHOR]

Copyright of Journal of South China University of Technology (Natural Science Edition) is the property of South China University of Technology 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 Transportation Science & Technolgy is the property of Transportation Science & Technology Editorial Office 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 stability of coral island reef sites under strong earthquakes is the primary challenge for infrastructure construction. Due to the marine engineering geology of coral islands and reefs and the dynamic characteristics of calcareous sands, systematic and in-depth study of the dynamic response of coral islands under strong earthquakes is the key to the evaluation of site seismic stability. A time-domain model for seismic response analysis of coral island reef sites is established using the user subroutine embedded in ANSYS software based on UPFs for simulating far-field radiation damping and nonlinear dynamic characteristics of calcareous sand. Furthermore, considering three factors of ground motion, relative density and effective confining pressure, the influences of different factors on the seismic response of coral island reef sites are explored from acceleration amplification characteristics, acceleration response spectrum, acceleration peak changes and relative displacements. The calculation results show that the coral island reef site has a filtering effect on the long-period spectrum, and the relative density and effective confining pressure have a certain impact on the seismic response of the island reef site. In addition, the established model shows good applicability. [ABSTRACT FROM AUTHOR]

Copyright of Engineering Mechanics / Gongcheng Lixue is the property of Engineering Mechanics Editorial Department 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 Atomic Energy Science & Technology is the property of Editorial Board of Atomic Energy Science & Technology 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 Railway Standard Design is the property of Railway Standard Design Editorial Office 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 Journal of Railway Science & Engineering is the property of Journal of Railway Science & Engineering Editorial Office 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.)

Hydrodynamic pressure on hydraulic structure is produced by water during earthquake. How to consider hydrodynamic pressure conveniently and efficiently is the basis of dynamic response analysis of intake tower. Morison equation, which is widely used to calculate wave forces on piers in deep water, was introduced into intake tower structure, and Morison equation was extended to make it applicable to tower intake with rectangular section. The results show that the hydrodynamic pressure inside and outside the tower is transformed into additional mass, and its distribution is directly related to the cross-section shape of the tower body, and has nothing to do with the height of the water body. The extended Morison equation was compared with the added mass formula of intake tower, and the applicability of the proposed method was evaluated by the obtained hydrodynamic pressure. It proves that the extended Morison equation can provide a new way to solve the hydrodynamic pressure of intake tower. [ABSTRACT FROM AUTHOR]