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隔震工程下支墩混凝土及预埋板施工技术分析 预览

Construction Technology Analysis of Lower Pier Concrete and Embedded Slab in Seismic Isolation Engineering
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摘要 建筑隔震工程中下支墩混凝土及隔震支座下预埋板施工,常出现混凝土密实度不足和预埋板安装、定位精度不合格,影响结构安全和隔震结构减震性能。针对下支墩(柱)混凝土施工通常采取的3种浇筑方式进行分析,提出宜采用高强灌浆料后灌浆或者细石混凝土二次浇筑的施工方法,对下预埋钢板制作所涉及的开孔、套筒、螺栓、锚筋等数量及连接方式等进行分析,建议不应采用较薄的定位板代替下预埋板,提出套筒表面应当采用螺纹、锚筋与下预埋板采用螺纹连接、下预埋板应当设置销钉等的要求。 In the construction of lower pier concrete and embedded slab under isolation bearing in building isolation engineering, the concrete compactness is often insufficient and the installation and positioning accuracy of embedded slab is not qualified, which will affect the safety of structure and the damping performance of isolation structure. In this paper, based on the analysis of three kinds of pouring methods which have been commonly adopted in the construction of lower pier(column) concrete, it is suggested that high strength grouting material should be adopted for post-grouting or secondary pouring of fine stone concrete. The number of holes, sleeves, bolts, anchor bars and connection modes involved in the manufacture of lower embedded steel plates are analyzed. It is suggested that the thinner positioning plate should not be used instead of the lower embedded plate, the surface of sleeve should be threaded, the anchor bars and the lower embedded plate should be connected by thread, and the pins should be set on the lower embedded plate.
作者 张东鹏 吴应雄 林顺建 许燕芳 王铭 ZHANG Dongpeng;WU Yingxiong;LIN Shunjian;XU Yanfang;WANG Ming(Fujian Fangxin Construction Engineering Co.,Ltd.,Fuzhou,Fujian 350015,China;College of Civil Engineering,Fuzhou University,Fuzhou,Fujian 350108,China;The Technology Centre of Building Engineering in Fujian Province,Fuzhou,Fujian 350008,China;Fujian Xindongpeng Construction Development Co.,Ltd.,Fuzhou,Fujian 350400,China;China Transportation Lujian Co.,Ltd.,Fuzhou,Fujian 350001,China)
出处 《水利与建筑工程学报》 2019年第3期225-230,共6页 Journal of Water Resources Architectural Engineering
基金 福建省住建厅科技项目(闽建办科[2019]6号2019-k-2).
关键词 建筑隔震工程 下支墩 混凝土密实度 下预埋板 building isolation engineering lower pier concrete compactness lower embedded plate
作者简介 张东鹏(1985-),男,福建泉州人,工程师,主要从事建筑工程施工技术方面的工作。E-mail:381855376@qq.com;通讯作者:吴应雄(1969-),男,福建泉州人,副教授,主要从事工程结构减隔震理论与工程应用方面的工作。E-mail:wyxfz2006@163.com。
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