深湾汇云中心塔吊爬升阶段临时支承竖向荷载动力放大系数的试验研究  

EXPERIMENTAL RESEARCH ON DYNAMIC AMPLIFICATION FACTORS OF VERTICAL LOADS ON TEMPORARY SUPPORTS FOR INNER CLIMBING TOWER CRANES OF SHENWAN HUIYUN CENTER DURING CLIMBING STAGES

作　　者：谢楠[1] 潘明栋 郑海涛 XIE Nan;PAN Mingdong;ZHENG Haitao(School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China;China Academy of Discipline Inspection and Supervision,Beijing 100877,China;China Construction first Group Co.,Ltd.,Shenzhen Company,Shenzheng 518000,China)

机构地区：[1]北京交通大学土木建筑工程学院,北京100044 [2]中国纪检监察学院,北京100877 [3]中国建筑一局(集团)有限公司深圳分公司,广东深圳518000

出　　处：《工业建筑》2021年第9期156-160,共5页Industrial Construction

基　　金：国家重点研发计划项目(2016YFC0802003)。

摘　　要：爬升阶段是内爬式塔吊临时支承十分不利的工况,由于受力时间较短,竖向荷载会产生明显的动力效应。依据建筑高度近350 m的深湾汇云中心J座塔楼的实测数据,分析了荷载作用下临时支承的内力和变形特征,揭示了临时支承中不同部位杆件的受力特点,并给出了不同部位杆件的竖向荷载动力放大系数。有限元分析结果表明,采用荷载放大系数的仿真计算结果和实测结果较为接近。The climbing stage is a very unfavorable load case for the temporary supports of internal climbing tower cranes.Due to the short action time of loads,the vertical loads will make obvious dynamic effects.Based on measured data the Tower J of Shenwan Huiyun Center with a construction height of nearly 350 m,the characteristics of bending moment and deformation of the temporary supports subjected to loads were analyzed.The characteristics of the structural members of the temporary support were obtained and the dynamic amplification factors of vertical loads were given.The finite element analysis results showed that the simulation results using the dynamic amplification factors were close to the actual measurement results.

关 键 词：临时支承 内爬式塔吊 超高层施工 爬升阶段 动态测试 动力放大系数 

分 类 号：TU974[建筑科学—建筑技术科学]