| 成都来福士广场劲性混凝土大悬挑结构临时支撑体系卸载分析 |
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| 引用本文： | 敖学侣,马卫华,张兴志,杜福祥,潘毅.成都来福士广场劲性混凝土大悬挑结构临时支撑体系卸载分析[J].施工技术,2011,40(21). |
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| 作者姓名： | 敖学侣 马卫华 张兴志 杜福祥 潘毅 |
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| 作者单位： | 1. 重庆大学土木工程学院,重庆,430030
2. 中建三局建设工程股份有限公司成都分公司,四川成都,610041 |
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| 基金项目： | 中建三局科技研发课题(CSCEC3B-2011-35) |
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| 摘 要： | 成都来福士广场工程为超高层浅色饰面清水混凝土工程,其中主要的竖向和水平构件采用劲性混凝土结构。在T2塔楼西侧大悬挑施工的过程中,需搭设临时支撑胎架。为了保证悬挑部位结构施工和下部支撑胎架拆除的安全性,利用有限元分析软件SAP2000 V14对卸载过程进行数值模拟。采用位移和受力控制兼备,以位移控制为主的主要控制思路,在整个施工过程中,对临时支撑主要竖向受力构件进行同步现场实测。通过实测值与模拟值进行对比分析,确定支撑胎架合理的卸载时间和顺序。结果表明,采用对称分步、循环微量下降卸载是一种较合理的卸载方法。
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| 关 键 词： | 高层建筑 混凝土 胎架 模拟分析 大悬挑结构 卸载 |
Unloading Analysis for the Temporary Support System of the Large Cantilevered Reinforced Concrete Structure of Raffles City Chengdu |
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| Ao Xuelü,Ma Weihua,Zhang Xingzhi,Du Fuxiang,Pan Yi.Unloading Analysis for the Temporary Support System of the Large Cantilevered Reinforced Concrete Structure of Raffles City Chengdu[J].Construction Technology,2011,40(21). |
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| Authors: | Ao Xuelü Ma Weihua Zhang Xingzhi Du Fuxiang Pan Yi |
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| Affiliation: | Ao Xuelü1,Ma Weihua2,Zhang Xingzhi2,Du Fuxiang2,Pan Yi2(1.College of Civil Engineering,Chongqing University,Chongqing 430030,China,2.Chengdu Construction Company,China Construction Third Engineering Co.,Ltd.,Chengdu,Sichuan 610041,China) |
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| Abstract: | Raffles City Chengdu is a super high-rise and light-colored fair-faced concrete project in which reinforced concrete structure is adopted in the main vertical and horizontal elements.Temporary supports need to be built in construction of the large cantilevered structure on the west of tower 2.In order to insure the safety of construction of the cantilevered structure and removing temporary supports,finite element analysis software SAP2000 V14 is adopted to simulate the unloading process for the large cantil... |
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| Keywords: | tall buildings concrete jigs calculation analysis large cantilevered structure unloading |
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