| 殷占忠1,2,张素峰1,孙源1,王立功1 |
| |
| 引用本文： | 殷占忠,张素峰,孙源,王立功.殷占忠1,2,张素峰1,孙源1,王立功1[J].科学技术与工程,2016,16(9). |
| |
| 作者姓名： | 殷占忠 张素峰 孙源 王立功 |
| |
| 作者单位： | 兰州理工大学土木工程学院,兰州理工大学土木工学院,兰州理工大学土木工学院,兰州理工大学土木工学院 |
| |
| 基金项目： | 国家自然科学(51368037) ；甘肃省高等学校基本科研业务费专项(1404ZTB256)；兰州理工大学红柳青年教师培养计划(TM-QK-1404)作者简介殷占忠(1979.7),男,副教授,博士,yinzhanzhong@1ut.cn. 带改进型双钢管约束屈曲支撑的钢框架力学性能分析 |
| |
| 摘 要： | 基于Opensees程序对原框架和增设改进型双钢管约束屈曲支撑进行加固的钢框架进行Pushover分析和非线性时程分析,对两者的抗震性能进行比较。得出以下结论：加固后的钢框架刚度和强度明显提高,顶层侧移比减小而底部剪力比增加较小；地震作用下,加固后的框架破坏程度远小于原框架,所产生的塑性铰主要集中在中间跨梁和支撑处,避免了其它构件发生破坏。说明对原框架增设改进型双钢管约束屈曲支撑进行加固,可提高结构的抗震性能。
|
| 关 键 词： | 约束屈曲支撑 加固钢框架 Pushover分析 非线性时程分析 抗震性能 |
| 收稿时间： | 2015/12/3 0:00:00 |
| 修稿时间： | 1/4/2016 12:00:00 AM |
Dynamic analysis of steel frame with double-tube buckling restrained braces |
| |
| YIN Zhanzhong,ZHANG Sufeng,SUN Yuan and WANG Ligong.Dynamic analysis of steel frame with double-tube buckling restrained braces[J].Science Technology and Engineering,2016,16(9). |
| |
| Authors: | YIN Zhanzhong ZHANG Sufeng SUN Yuan and WANG Ligong |
| |
| Institution: | School of Civil Engineering,Lanzhou University of Technology,School of Civil Engineering,Lanzhou University of Technology,School of Civil Engineering,Lanzhou University of Technology |
| |
| Abstract: | In this paper, pushover analysis and nonlinear time-history analysis of the retrofitted steel frame structures with improved double-tube buckling restrained braces and original steel frame were performed using Opensees and the seismic performances were compared. The conclusions are following: the stiffness and strength of the retrofitted steel frame are improved, and the roof drift ratio reduces while the base shear ratio has a little increase; under the earth quake, the degree of damage is far less than that of original steel frame, and the formed plastic hinges mainly concentrate on the middle beams and brace, avoiding the damages on other members. |
| |
| Keywords: | buckling restrained braces original steel frame pushover analysis nonlinear time-history analysis seismic performance |
|
| 点击此处可从《科学技术与工程》浏览原始摘要信息 |
| 点击此处可从《科学技术与工程》下载免费的PDF全文 |
|
