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钢管再生混合柱在紫金县文化活动中心的应用
刘琼祥1,吴波2,蔡庆雄1,刘伟1,许喆1,周健能1,赵新宇2
摘 要
(1 深圳市建筑设计研究总院有限公司,深圳 518031;2 华南理工大学亚热带建筑科学国家重点实验室,广州 510640)
[摘要]简要介绍了钢管再生混合柱在紫金县文化活动中心的应用,论述了针对本工程开展的试验研究。比较了华南理工大学进行的4mm厚和1mm厚钢管再生混合柱的轴心抗压承载力实测值与按CECS28:90计算方法所得的计算值。充分考虑旧混凝土在钢管中分布的均匀性以及新旧混凝土强度的差异性,提出了钢管再生混合柱轴心抗压承载力的计算方法。
[关键词]钢管再生混合柱;工程应用;足尺试验;轴心抗压承载力
中图分类号:TU398文献标识码:A文章编号:1002-848X(2011)05-0009-04
Application of steel stub columns filled with demolished concrete segment/lump in Culture & Entertainment Centre of Zijin County
Liu Qiongxiang1, Wu Bo2, Cai Qingxiong1, Liu Wei1, Xu Zhe1, Zhou Jianneng1, Zhao Xinyu2 (1 Shenzhen General Institute of Architectural Design and Research Co., Ltd., Shenzhen 518031, China;2 State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, China)
Abstract:The application of steel stub columns filled with demolished concrete segment/lump (DCS/L) in Culture & Entertainment Centre of Zijin County was presented. An experiment including two full-size DCLs filled steel tubular stub columns cast on site was discussed. According to CECS28:90, the axial load bearing capacities of the specimens were calculated and compared with the tested axial load bearing capacities of steel stub columns filled with DCS/L with 1mm and 4mm in thickness. Considering of the distribution uniformity of demolished concrete in steel tube and the difference between demolished and cast-in-situ concrete, a formula was proposed to determine the axial ultimate strength of steel stub columns filled with DCS/L.
Keywords:steel stub column filled with demolished concrete segment/lump; engineering application; full-size test; axial load bearing capacity
作者简介:刘琼祥,教授级高级工程师,一级注册结构工程师,Email:liu.qx@szonline.net。
参考文献
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