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For ordinary reinforced under corrosion environment corrosion problems and analysis the main factors affecting ordinary steel corrosion, proposed stainless steel bar rust and corrosion resistance advantages, introduce the related properties of the stainless steel reinforced, combined with the research status of domestic and international stainless steel bar, put forward the research and engineering application of stainless steel rebar for the related problems and direction, the prospects and development of stainless steel reinforced put forward suggestions.

In the external connection of the beam and wall, the anchorage of the end of the longitudinal reinforcement plays an important role in the bearing capacity of the whole node. Relevant information at home and abroad were reviewed in this paper. In this connection the existing anchor improvement measures research progress and application were summarized,which includes the improving and characteristics of visible beam or beam head, double anchor plate and so on. Put forward the problems to be further studied in the future.

Precast prestressed concrete double tee is an economic bearing component which can be made into a large span, large coverage area .From the angle of the design for the end of the precast prestressed concrete double tee component, flexure and axial tension in extended end, direct shear, diagonal tension at re-entrant corner, diagonal tension in extended end and the connection of the end of precast prestressed double tee component in China and the United States are compared. The comparative study provide the direction for the future development of China in the double tee,including strengthening the end reinforcement and increasing end connections.

with the country of prefabricated construction vigorously promote, laminated concrete gradually into the line of sight of people, it not only has the factory production, convenient construction convenient, highlight the advantages of material saving, etc., this paper production and construction from the point of view of, the in the production process and Application of the discussion.

In order to explore the trend of tensile bearing capacity of embedded hanging parts when change the edge distance. Based on the finite element analysis software ABAQUS, the four simulation model was established. The buried depth and strength of concrete remain unchanged, but the edge distance was gradient change. By the load - displacement curve of every model known, the greater the edge distance, the greater the bearing capacity. When the edge distance reaches 1.5 times buried depth, the effect of increasing edge distance for improving the bearing capacity will be impaired.

Now reinforced concrete structure in our country develops very fast, and reinforced concrete structure has been widely applied by various buildings. But with the deepening of the research experts and scholars, they found in some areas where high corrosion of reinforced concrete structure with the increase of service time, the concrete cracks, and led to the internal steel bar corrosion conditions. In the face of these problems, the experts used stainless steel applied to the study of concrete. In this paper, the stainless stell reinforced concrete structure of the application and development status of made briefly.