箱形截面钢压弯构件的滞回性能和板件宽厚比限值研究

Study on Hysteretic Behavior of Box- section Steel Beam- columns Under Cyclic Bending and on Limiting Ratio of Width- to- thickness of its Plates

本文采用自编的双重非线性壳体有限元程序DNSFEM分析了箱形截面钢压弯构件受常轴力、循环弯矩作用时的循环非线性性能，得到了箱形截面钢压弯构件在常轴力、循环弯矩作用下的滞回性能和主要影响因素，并对强震条件下的板件宽厚比限值提出了建议。

Nonlinear cyclic behavior of steel bending members with constant axial compression is studied by using the Double Nonlinear Shell Finite Element program (DNSFEM). As a result, the hysteretic characteristic has been reviewed, and the limiting width- to- thickness ratio of plates under strong seismic actions has been suggested.