[1]秦士洪,李唐宁,黄昌正,等.预应力钢骨混凝土支托刚架试验研究[J].深圳大学学报理工版,2007,24(4):345-351.
　QIN Shi-hong,LI Tang-ning,HUANG Chang-zheng,et al.Experimental study on the triangular bracket of PSRC[J].Journal of Shenzhen University Science and Engineering,2007,24(4):345-351.
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预应力钢骨混凝土支托刚架试验研究()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第24卷
期数:
2007年4期
页码:
345-351
栏目:
土木建筑工程
出版日期:
2007-10-30

文章信息/Info

Title:
Experimental study on the triangular bracket of PSRC
文章编号:
1000-2618(2007)04-0345-07
作者:
秦士洪1; 李唐宁1; 黄昌正2; 张建华1; 范从才1; 何　熊1
1)重庆大学土木工程学院，重庆 400045；
2)深圳华艺设计顾问有限公司，深圳 518031
Author(s):
QIN Shi-hong1; LI Tang-ning1; HUANG Chang-zheng2; ZHANG Jian-hua1; FAN Cong-cai1; and HE Xiong1
1)College of Civil Engineering，Chongqing University，Chongqing 400045，P.R.China
2)Shenzhen Huayi Design Ltd.，Shenzhen 518031，P.R.China
关键词:
钢骨混凝土; 预应力; 受力特点; 应力应变分布; 静力试验
Keywords:

steel reinforced concrete; prestress; bearing character;  stress and strain distribution; static experiment

分类号:
TU 398.9；TU 378.1
文献标志码:
A
摘要:

通过对2榀比例为1∶4的结构模型室内静力试验，研究重庆国际大厦工程中预应力钢骨混凝土(prestressed steel reinforced concrete，PSRC)巨型三角形支托刚架的受力性能及破坏形态等设计问题．结果表明，参照普通预应力构件的计算方法，PSRC构件的高含钢率对短期预应力建立无不利影响；平截面假定对普通钢骨混凝土构件和PSRC构件都成立；建议对支托刚架的承载力极限状态考虑两道安全防线；拉杆设计应偏于安全以开裂作为首要控制目标；上部节点区所配斜向箍筋在出现裂缝后发挥明显作用，应同时作为受拉钢筋和箍筋来对待，其他节点区的水平箍筋可按构造要求配置．

Abstract:

The bearing performances and failure features of the prestressed steel reinforced concrete (PSRC) triangle brackets of the Chongqing International Edifice were investigated by the static experiments on two 1∶4 scale models. The results calculated by the method for ordinary prestressed concrete show that the high steel ratio of the PSRC elements has no negative effects on short-term prestressed establishment of PSRC. The plane-section assumption is tenable for both steel reinforced concrete and PSRC elements. Two secure fortification lines should be considered for the carrying capacity ultimate state of the triangle bracket. The first aim of design is to control the cracking of the tensile rod for more safety of structure. Since the hooped reinforcements in upper joints play a positive role after cracking，they should be considered as tensile and hooped reinforcement. The hooped reinforcements in other joints may be arranged according to the structural requirement．

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2007-04-09；修回日期：2007-08-09
基金项目：浙江省建设厅资助项目(0402)
作者简介：秦士洪(1954-)，男(汉族)，重庆市丰都县人，重庆大学副教授.E-mail：qinshihong_1@163.com
更新日期/Last Update: 2007-12-05