河北科技大学学报2011，Vol.32Issue(6)：628-634,7.
ST12材质焊接工字形钢支撑滞回性能数值模拟
Numerical simulation of hysteretic behavior for ST12 welded I-section steel bracing members
摘要
Abstract
In order to investigate the hysteretic behavior of the bracing members under rare earthquakes, numerical simulation was conducted based on the comparing experiments. The key parameters, including the buckling process and the modes of the local buckling, the maximum compressive strength, the minimum post-buckling strength, the maximum lateral deformation and the cumulative dissipation energy are disscussed in detail. In general, the simulative results agreeds well with the tests, the relevant literatures and the codes, which indicates that the simulative results are credible. It is also found that the simulative discreteness is less than the test ones. Baesd on the results mentioned above, the conclusions are obtained that the stress and the strain distribution in the surface of the bracing members gained by the numerical analysis are in accordance with the true distribution, which lays a foundation for the low-cycle fatigue behavior analysis in the future.关键词
焊接工字形钢支撑/滞回性能/数值模拟/试验研究/累积耗能Key words
welded I-section steel bracing member/hysteretic behavior/numerical simulation/experimental investigations cumulative dissipation energy分类
建筑与水利引用本文复制引用
于海丰,连尉安..ST12材质焊接工字形钢支撑滞回性能数值模拟[J].河北科技大学学报,2011,32(6):628-634,7.基金项目
河北省科技支撑计划项目(10276914) （10276914）
河北科技大学校立基金资助项目(XL201032) （XL201032）
河北科技大学博士科研启动基金资助项目(QD201052) （QD201052）
