Research On Resistance To Lateral Impact Properties Of The Special-shaped Steel Reinforced Concrete Columns

With the continuous development of the social economy and the improvement of people's living standard, people on the housing requirements with the gradual promotion, not only requires the net area is large, and the use of housing net height is increased. The use of special-shaped columns instead of rectangular column can effectively solve the problems. Special-shaped column limb width and wall thickness is equal, avoid building columns leng exposed, this not only increases the net area of housing, greatly improve the appearance and practicality of buildings. Steel reinforced concrete column is exceed two kind of different materials to play their respective expertise and form, it has higher bearing capacity, good ductility. Special shaped steel reinforced concrete column commonly used section is divided into three types, namely the cross shape, T shape and L shape, and can be widely used in residential construction in the middle column, edge and corner columns.The shock problems often encountered in the actual project, while the impact problem belongs to the short-time dynamic problem, so the strain rate effect can not be ignored, especially when the load intensity is big, cause the deformation process component or structure is very fast, so we must consider the matter of acceleration and inertial force in the study of problems of this type. Therefore, research on the special-shaped steel reinforced concrete column performance against lateral impact is very meaningful.The author uses the lateral impact performance of large-scale finite element software ABAQUS to T shaped steel reinforced concrete column is simulated, analyze and study the method to transform parameter simulation in number, change only one parameter at a time, the other parameters remain unchanged. Parameters can change include the axial compression ratio, constraint conditions, impact velocity, impact site, reinforced skeleton and containing bone rate, by extracting the displacement components under various conditions of time history curves, velocity curves and comparison analysis can be summed up:T shaped steel reinforced concrete columns under impact load performance against lateral impact good.