新型高层装配式蜂窝型钢网格盒式双筒结构静力弹塑性分析

Static elasto-plastic analysis of a new type of high-rise assembled honeycomb steel grid box double-tube structure

为了研究新型高层装配式蜂窝型钢网格盒式双筒结构的弹塑性力学性能,基于Midas/Gen程序对结构进行Pushover分析,重点分析了大震作用下新型结构和常规结构的性能点、层间剪力、层间位移以及铰状态发展等情况.研究结果表明:大震作用下,两种结构均可得到性能点,新型结构达到性能点的步骤更晚,能够承受更大的剪力和最大位移;两种结构的弹塑性层间位移角满足规范要求;新型结构铰达到塑性阶段的数量更少,满足大震不倒要求.

To study the elasto-plastic mechanical properties of a new type of high-rise assembled honeycomb steel grid box double-tube structure,this paper carries out a pushover analysis of the structure based on the Midas/Gen program,and focuses on the performance of the new structure and conventional structure under the action of large earthquake,including performance point,interlayer shear force,interlayer displacement,hinge state development and so on.The results show that the two structures can obtain the performance point under the action of large earthquake,and the new structure can reach the performance point even later,and it can withstand greater shear force and maximum displacement.The elasto-plastic interlayer displacement angles of the two structures meet specification requirements,and the number of hinge getting to plastic state in the new structure is even less.The structure can meet the requirement of not collapsing under severe earthquake.