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| 屈曲约束支撑和普通支撑的混合布置研究 | |
| 引用本文： | 林昕,夏旭标,孙飞飞.屈曲约束支撑和普通支撑的混合布置研究[J].建筑钢结构进展,2010,12(2):57-62. |
| 作者姓名： | 林昕 夏旭标 孙飞飞 |
| 作者单位： | 1. 同济大学土木工程学院,上海,200092 2. 上海彪玛建筑工程咨询有限公司,上海,200336 3. 同济大学土木工程防灾国家重点实验室,上海,200092 |
| 基金项目： | 上海市自然科学基金项目(08ZR1420000);;国家科技支撑计划项目(2006BAJ01B02) |
| 摘 要： | 为了满足降低造价的需求,通过算例分析考察了屈曲约束支撑和普通支撑混合布置方式的经济性和结构合理性。针对一个八层典型学校建筑,设计了20个结构方案,其中采用了抗弯框架、中心支撑框架、屈曲约束支撑框架和下部楼层屈曲约束支撑、上部楼层普通支撑的混合框架等四种结构体系。比较了这些方案的结构综合造价以及由弹塑性时程分析得到的强震反应,结果表明:屈曲约束支撑框架和混合框架在7度以上烈度地区比抗弯框架和中心支撑框架更经济;对于混合布置方案,地震烈度越高,更多楼层安装屈曲约束支撑将更经济;在混合布置方案中,上部楼层的普通支撑可能加大下部楼层的柱轴力,使其过早破坏,因而这些柱的截面有必要适当加大;合理设计的混合布置方案与屈曲约束支撑框架在抗震性能上相接近。 |
| 关 键 词： | 屈曲约束支撑 普通支撑 混合布置 抗震性能 |
Research on Hybrid Arrangement of Buckling-Restrained Braces and Ordinary Braces |
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| LIN Xin,XIA Xu-biao,SUN Fei-fei.Research on Hybrid Arrangement of Buckling-Restrained Braces and Ordinary Braces[J].Progress in Steel Building Structures,2010,12(2):57-62. | |
| Authors: | LIN Xin XIA Xu-biao SUN Fei-fei |
| Affiliation: | 1.College of Civil Engineering/a>;Tongji University/a>;Shanghai 200092/a>;China/a>;2.BMP Construction Consulting Co./a>;Ltd./a>;Shanghai 200336/a>;3.State Key Laboratory for Disaster Reduction in Civil Engineering/a>;China |
| Abstract: | To respond to the need of reduction in construction cost,both economical and structural reasonability of hybrid arrangement of buckling-restrained braces (BRB) and ordinary braces (OB) was investigated by means of case study. 20 cases were designed for a typical school building of 8 storeys,in which employed were four different structural systems of moment frames (MF),concentrically braced frames (CBF),BRB frames (BRBF) and hybrid frames with BRBs in lower floors and OBs in upper floors (HF). The design cas... |
| Keywords: | buckling restrained brace ordinary brace hybrid arrangement seismic performance |
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