仿古建筑震后加固卸荷钢框架设计
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摘要
四川省江油市太白碑林太白楼为钢筋混凝土仿古建筑,汶川"5·12"大地震使其层3全部混凝土柱(28根)破坏。因采用置换法加固,设计一个20.9m高的卸荷钢框架暂时将层3以上部分托起,待置换灌浆料达到设计强度后再将其放下。重点介绍了在卸荷钢框架的设计中如何考虑仿古建筑结构的特点及托换过程中余震的影响,为加固卸荷积累了经验。
Taibai Steles' Taibai Building in Jiangyou city,Sichuan province,is a reinforced concrete antique building.All of 28 concrete columns in the third storey were damaged.In order to dismantle and replace the damaged columns,the method of the replacing grounting materials was adopted.So a 20.9m high decompression steel-frame should be designed to jack up the part above the third storey,after the replacing grounting materials reached the design strength then put them down the part above the third storey.How to deal with the features of the antique building structure during the design of decompression steel-frame and the aftershocks' influences in the course of upbearing and replacement were focused on.It accumulates experiences for decompression of antique building.
Taibai Steles' Taibai Building in Jiangyou city,Sichuan province,is a reinforced concrete antique building.All of 28 concrete columns in the third storey were damaged.In order to dismantle and replace the damaged columns,the method of the replacing grounting materials was adopted.So a 20.9m high decompression steel-frame should be designed to jack up the part above the third storey,after the replacing grounting materials reached the design strength then put them down the part above the third storey.How to deal with the features of the antique building structure during the design of decompression steel-frame and the aftershocks' influences in the course of upbearing and replacement were focused on.It accumulates experiences for decompression of antique building.
引文
[1]张向东,肖胜利,夏琪,等.仿古建筑地震灾后重建施工技术[J].施工技术,2011,40(6):39-43.
[2]四川省建筑科学研究院.地震灾后建筑鉴定与加固技术指南[M].北京:中国建筑工业出版社,2008.
[3]刘大可.古建筑屋面荷载编汇(上)[J].古建园林技术,2001(3):58-64.
[4]GB 50011—2001建筑抗震设计规范[S].2008年版.北京:中国建筑工业出版社,2008.
[5]GB 50550—2010建筑结构加固工程施工质量验收规范(报批稿)[S].北京:住房和城乡建设部建筑物鉴定与加固规范管理委员会,2009.
[6]冯远,肖克艰,刘宜丰.汶川地震灾害引发建筑结构设计者的思考[J].建筑结构,2008,38(7):25-27.
[2]四川省建筑科学研究院.地震灾后建筑鉴定与加固技术指南[M].北京:中国建筑工业出版社,2008.
[3]刘大可.古建筑屋面荷载编汇(上)[J].古建园林技术,2001(3):58-64.
[4]GB 50011—2001建筑抗震设计规范[S].2008年版.北京:中国建筑工业出版社,2008.
[5]GB 50550—2010建筑结构加固工程施工质量验收规范(报批稿)[S].北京:住房和城乡建设部建筑物鉴定与加固规范管理委员会,2009.
[6]冯远,肖克艰,刘宜丰.汶川地震灾害引发建筑结构设计者的思考[J].建筑结构,2008,38(7):25-27.
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