New Type Foam Concrete Wall Research

In Recent years,the concept of building industrialization is all the more popular in the building trades,the structure pursuit of not only steadiness but also energy conservation,environment protection and convenient construction,which have became the priority of building a structure.By reason of prefabricated foam concrete wall`s lightweight,insulation,fire resistence performance and flexible layout,it is widely used in the construction industry.The researchful object of this text is new-type wall which is formed of slanting bracing and foam concrete,it has the ability to absorb the energy and bear the load.The new-type anti-seismic foam concrete wall not only have a good performance on durability and fire resistance,but have the advantage of energy saving and environmental protection.This text adopted the method of using the combination of experimental and finite element simulation to study the influence that bracing`s reinforcement ratio and the angle of bracing make on the performance of foam-concrete infill wall.By analyzing the wall`s development of the crack,the horizontal displacement,the ultimate failure characteristics and the hysteretic curves on pseudo-static test which controlled by displacement to study the ductility,the capacity to absorb earthquake`s energy,vertical carrying capacity and stiffness degradation of this wall.Comparing these property with foam-concrete infill wall and masonry wall.The main steps are as follows:1.Using ABAQUS software to analyze new-type anti-seismic foam concrete walls with different bracing`s,level and vertical steel`s reinforcement ratio,study the influence reinforcement ratio makes on wall`s mechanical behavior,and find the best cost performance of reinforcing bars.To analyze new-type anti-seismic foam concrete walls with different bracing`s angle,study the influence bracing`s angle makes on wall`s mechanical characteristics,and find the most suitable bracing`s angle for foam concrete.2.Contrast test was made on masonry wall and new-type anti-seismic foam concrete wall which has the optimal reinforcement ratio and bracing angle that isbased on finite element simulation,the experiment model ratio of 1:2.Studying the wall`s failure mode by observing the crack`s position,development from the beginning to destruction,and the wall`s ultimate displacement.Comparing the result of experiment with the hysteresis curve of finite element simulation.3.Deriving the formula of new-type anti-seismic foam concrete wall`s bearing capacity and studying the failure mechanism of the wall under earthquake by the result of experiment and simulation.It provided the theoretical direction for the adhibition of the new-type anti-seismic foam concrete wall in engineering.