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中国尊大厦内置钢板支撑混凝土剪力墙设计研究
齐五辉1,杨蔚彪1,常为华1,宫贞超1,田士川1,李华峰1,纪晓东2
摘 要
(1 北京市建筑设计研究院有限公司,  北京 100045;  2 清华大学土木工程系, 北京 100084)

[摘要]为减轻结构总重量、控制墙身截面厚度、满足轴压比和抗震性能要求,中国尊大厦核心筒底部区域采用内置钢板混凝土剪力墙,中间区段采用内置钢板支撑混凝土剪力墙;在结构塔冠位置(104层及以上)由于刚度突变及鞭梢效应的影响,采用内置钢板混凝土剪力墙等措施予以加强。由于目前尚无内置钢板支撑混凝土剪力墙抗震性能的研究,因此对内置钢板支撑混凝土剪力墙进行了专项试验研究和动力弹塑性分析。结果表明,内置钢板支撑混凝土剪力墙施工简单,混凝土浇筑密实度容易得到保证。其刚度和受剪承载力与内置H型钢混凝土剪力墙的刚度和受剪承载力基本相同,两种墙的极限变形能力和耗能能力也基本相当。
[关键词]中国尊大厦; 内置钢板支撑混凝土剪力墙; 试验研究; 弹塑性分析
中图分类号:TU318      文献标识码:A      文章编号:1002-848X(2015)18-0001-05

Structural design and study on steel-plate-bracing concrete shear walls of China Zun Tower
 
Qi Wuhui1, Yang Weibiao1, Chang Weihua1, Gong Zhenchao1, Tian Shichuan1, Li Huafeng1, Ji Xiaodong2
 
(1 Beijing Institute of Architectural Design, Beijing 100045, China; 2 Department of Civil Engineering, Tsinghua University, Beijing 100084, China)
 
Abstract: To fulfill the purpose of reducing the total structure weight, controlling the shear wall thickness, satisfying the ratio of axial compression stress to strength and seismic behavior requirements, steel-plate-concrete shear walls are adopted at the bottom part of the core wall for China Zun Tower,and steel-plate-bracing concrete shear walls are used in the mid-part of the core wall. Because of the stiffness mutation and whipping effects, steel-plate concrete shear walls are used to reinforce the pinnacle of the structure tower (104 floor and above). Due to the lack of studies on seismic performance of steel-plate-bracing concrete shear walls, special experimental study and dynamic elasto-plastic analysis on steel-plate-bracing concrete shear walls were performed. Results show that the steel-plate-bracing concrete shear walls are easy to construct, and the compaction degree of the concrete is easy to be guaranteed. The stiffness and shear capacity of the concrete shear walls with H-shaped steel inside are basically as the same as those of steel-plate-bracing concrete shear walls, and the ultimate deformation capacity and energy dissipation capacity of the two structures are basically equivalent.
 
Keywords: China Zun Tower; steel-plate-bracing concrete shear wall; experimental study; elasto-plastic analysis
 
通讯作者:常为华,硕士,高级工程师,一级注册结构工程师, Email:biad_changwh@163.com
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