Study On The New Connection Mode Of Assembly Shear Wall

Shear wall is a kind of lateral force component widely used in building structures.With the rapid development of China's construction industry,the shear wall structure is more and more applied to the construction structure,especially in high-rise buildings.Existing in our country,the use of shear wall in high-rise buildings,After several earthquakes.,some structure showed good seismic performance,while some structure in the earthquake damage is serious,the essential reason,lies in the existing structure,the way of cast-in-situ shear wall more application,are greatly influenced by external factors,therefore,to explore a kind of convenient operation and reliable application of prefabricated shear wall structure is very important.Tests given the high cost,long cycle and a higher requirements,this article adopts the method of numerical simulation to simulate the performance of shear wall in cyclic loading,use the ABAQUS software.,both for cast-in-situ and prefabricated shear wall for comprehensive evaluation.Shear wall structure is mainly composed of steel and concrete,in order to ensure the reliability of the test data,before carried out the simulation,perform mechanical tests on the materials to be used,such as concrete,steel bar,determine its related parameters.Considering the application of steel fiber concrete in assembly shear wall,in order to in conformity with the goal of energy saving economy,also carry out the test steel of fiber reinforced high strength concrete to determine its related mechanical properties..Then,carried out numerical simulation by ABAQUS to Simulate the performance of assembly shear wall and cast-in-place shear wall under low reversed cyclic loading.Yet obtain two kinds of shear wall hysteresis curve,then evaluate the energy dissipation,stiffness degradation ability,etc.The last,Analysis the shear performance of new and old concrete bond surface.The preliminary results show that,compared with the cast-in-place shear wall component,the above performance of the assembled composite shear wall component is not inferior.This result has laid a good theoretical foundation for the future development of relevant experiments and the promotion and application of this new type of shear wall connection.