| 北京工人体育场体外预应力加固方法研究 |
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| 引用本文： | 司波,秦杰,钱英欣,李国立,徐瑞龙.北京工人体育场体外预应力加固方法研究[J].工业建筑,2008,38(12). |
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| 作者姓名： | 司波 秦杰 钱英欣 李国立 徐瑞龙 |
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| 作者单位： | 北京市建筑工程研究院 |
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| 摘 要： | 1986年北京工人体育场经第一次改造后,经过长期使用以及在温度应力的作用下,部分斜梁在梁、柱节点附近存在裂缝,因此采用了体外预应力加固技术对其再次改造,以增加斜梁的抗裂能力和强度。对北京工人体育场看台斜梁采用体外预应力加固的结构体系,确定施加预应力大小的计算原则,转向块的设计以及施工过程和施工工艺进行介绍,表明了体外预应力加固方法的优越性。
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| 关 键 词： | 北京工人体育场 体外预应力 加固 钢绞线 转向块 |
RESEARCH ON THE REINFORCED METHOD OF EXTERNAL PRESTRESSING IN BEIJING WORKERS' STADIUM |
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| Si Bo Qin Jin Qian Yingxin Li Guoli Xu Ruilong.RESEARCH ON THE REINFORCED METHOD OF EXTERNAL PRESTRESSING IN BEIJING WORKERS' STADIUM[J].Industrial Construction,2008,38(12). |
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| Authors: | Si Bo Qin Jin Qian Yingxin Li Guoli Xu Ruilong |
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| Affiliation: | Beijing Building Construction Research Institute Beijing 100039 |
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| Abstract: | Beijing Workers' Stadium was reinforced for the first time in 1986,after long application and effect of temperature stress,there were some cracks on partial inclined beams near the joints of beam and column. For the second reform,external prestressing is used for strengthening the beams. It is introduced the structural system of prestressed concrete members using external prestressing in the inclined beam of the Beijing Workers' Stadium,the principle of determining the prestressing force and the design of the deflector block;as well as the construction process and construction technology. Which shows the superiority of external prestressing strengthening. |
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| Keywords: | Beijing Workers' Stadium external prestressing reinforcement steel wires deflector block |
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