多层地下室型钢支撑加固技术及有限元分析
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摘要
某工程地下室为三层框架结构,为满足施工期间在其顶板上行走重型运输车辆的承载要求,采取型钢支撑对地下室进行加固。以地下室顶板混凝土梁跨中为主线布置观测点,每隔15 d进行1次变形监测,采用全站仪测定支撑柱柱顶标高及支撑梁跨中坐标,确保了地下室顶板上的车辆行车安全。
The basement of an engineering is frame structure and three storeys. It adopts structural steel support-reinforce method for the basement reinforcing, meeting the load bearing requirement of heavy vehicle. The midspan of concrete beam of basement roof arranges principal observation points and carries out deformation monitoring every half a month, it adopts total station to measure elevation at the top of support column and coordinate for midspan of support beam, ensuring the traffic safety of basement roof.
The basement of an engineering is frame structure and three storeys. It adopts structural steel support-reinforce method for the basement reinforcing, meeting the load bearing requirement of heavy vehicle. The midspan of concrete beam of basement roof arranges principal observation points and carries out deformation monitoring every half a month, it adopts total station to measure elevation at the top of support column and coordinate for midspan of support beam, ensuring the traffic safety of basement roof.
引文
[1]钢结构工程施工规范:GB 50755-2012[S].
[2]钢结构设计规范:GB 50017-2003[S].
[3]建筑结构荷载规范:GB 50009-2012[S].
[4]方超.型钢加固混凝土组合梁抗弯承载力的试验研究和理论分析[D].天津:天津大学,2007.
[5]王新平,徐丁.型钢加固钢筋混凝土组合梁的性能研究[J].工程抗震与加固改造,2009,21(6):87-89.
[6]程江敏,程波,邱鹤,等.钢结构加固方法研究进展[J].钢结构,2012,33(11):9-15.
[7]李莎,卢亦焱.框架剪力墙结构鉴定与加固实例[J].建筑技术,2016,47(6):558-561.
[8]尹保江,肖疆,赵向丽,等.某地下室开裂原因分析与加固[J].工程抗震与加固改造,2014,39(6):102-105.
[2]钢结构设计规范:GB 50017-2003[S].
[3]建筑结构荷载规范:GB 50009-2012[S].
[4]方超.型钢加固混凝土组合梁抗弯承载力的试验研究和理论分析[D].天津:天津大学,2007.
[5]王新平,徐丁.型钢加固钢筋混凝土组合梁的性能研究[J].工程抗震与加固改造,2009,21(6):87-89.
[6]程江敏,程波,邱鹤,等.钢结构加固方法研究进展[J].钢结构,2012,33(11):9-15.
[7]李莎,卢亦焱.框架剪力墙结构鉴定与加固实例[J].建筑技术,2016,47(6):558-561.
[8]尹保江,肖疆,赵向丽,等.某地下室开裂原因分析与加固[J].工程抗震与加固改造,2014,39(6):102-105.