(北京富力通达房地产开发有限公司， 北京 100022)

［摘要］超高层建筑结构中剪力墙在强烈地震作用下存在拉力情况时，结构的整体抗震性能较差。结合某超高层住宅项目，对受拉剪力墙采用缓粘结预应力技术，通过施加预应力方式进而提高墙体的抗拉能力及抗震能力。介绍了缓粘结预应力技术概况、墙体预应力计算、预应力筋布置及张拉端设计。对于墙体存在的应力扩散问题及混凝土收缩徐变导致的预应力损失问题进行了专项分析，并得到应力扩散系数及损失后预应力张拉应力。对结构进行弹塑性分析并对比预应力方案及常规配置型钢方案下结构的基底剪力、结构变形、结构损伤及抗震性能，结果表明，缓粘结预应力技术可较好地解决剪力墙受拉问题，且与常规配置型钢方案具有一致的抗震性能。 

［关键词］超高层建筑； 钢筋混凝土剪力墙； 缓粘结预应力； 偏心受拉； 抗震性能 

中图分类号：TU375 文献标识码：A文章编号：1002-848X(2021)11-0059-07

 Retarded-bonded prestressed design of reinforced concrete shear wall in a high-rise building  

GAO  Su,  XU  Ziguo,  WAN  Yixiu,  LIU  Hongzhi 

(Beijing R&F Properties Development Co., Ltd., Beijing 100022， China) 

Abstract: When tensile stress exists in the shear wall of the super high-rise building structure under the action of strong earthquake, the seismic performance of the structure is weak. Taking one high-rise residential building as a case, the tensile shear wall adopts the retard-bonded prestressed technology, and the pre-stress method was applied to improve the tension capacity and seismic capacity of the wall. The general situation of retard-bonded prestressed technology, the calculation of wall prestressing, the layout of prestressing tendon and design of prestressed tension end were introduced. Specific analysis was performed for the stress diffusion problem in the wall and the prestress loss caused by concrete shrinkage and creep, and the stress diffusion coefficient and the prestress tensile stress after loss were obtained. The elastic-plastic analysis of the structure was carried out and the base shear, structural deformation, structural damage and seismic performance of the structure under the prestressed scheme and the conventionally section steel scheme were compared. The results show that the retarded-bonded prestressed technology can better solve the tension problem of the shear wall, and it has the same seismic performance as the conventionally section steel scheme. 

Keywords:high-rise building； reinforced concrete shear wall； retard-bonded prestressed； eccentric tensile； seismic performance

作者简介：高骕，硕士，工程师，Email:gaosu0131@163.com.cn。