（1深圳市力鹏工程结构技术有限公司， 深圳 518034；2 深圳市力鹏建筑结构设计事务所， 深圳 518034）

［摘要］在高层及超高层建筑中，空心板楼盖不但要传递竖向荷载，还要在水平荷载作用下协调内筒和外框结构分担的剪力。对空心板楼盖的模拟方法进行了探讨，通过与实体单元的对比研究，提出了采用离散板单元的方法来模拟空心板。以249m前海国际能源金融中心T1塔楼为例，结合实际空心板的构成，详细介绍了空心板作为离散板与其他构件外框梁、外框柱、暗梁、核心筒外墙等的连接部位的模拟。指出了空心板楼盖在竖向荷载和水平荷载作用下暗梁不能为空心板提供有效的支撑，外框巨柱边及核心筒外墙边空心板承受的弯矩和剪力较大。对于实际工程中空心板楼盖的高层框筒结构建议采用离散板的模拟方法并同时考虑竖向荷载及水平荷载的影响。

［关键词］高层框筒结构； 离散板单元； 空心板楼盖有限元模拟； 受力特点

中图分类号：TU318文献标识码：A文章编号：1002-848X(2019)09-0007-06

Finite element simulation and mechanical analysis of hollow slab floor of high-rise frame-corewall structure

Sun Renfan1, Xu Xuan1, Wei Lian1,2

（1 Shenzhen Li Peng Structural Engineering Technology Co., Ltd., Shenzhen 518034, China；2 Shenzhen Li Peng Building Structure Design Institute, Shenzhen 518034, China）

Abstract:In high-rise and super high-rise buildings, hollow slab floor not only transmits vertical load, but also coordinates the shear force shared by inner corewall and outer frame structures under horizontal loads. The simulation method of hollow slab floor was discussed, and the discrete slab element method was proposed to simulate hollow slab by comparing with the solid element. The 249m Qianhai International Energy and Finance Center Tower T1 was taken as an example, and the actual structure of hollow slab was considered to detailed introduce the simulation of  connecting part between hollow slab as discrete slab and other components such as outer frame beam, outer frame column, concealed beam and outer wall of corewall. The concealed beam of hollow slab floor could not provide effective support for hollow slab under vertical and horizontal loads, and the hollow slab at the side of giant column and outer wall of corewall bore large bending moment and shear force. For  high-rise frame-coerwall structure of hollow slab floor in practical engineering, it was suggested that  discrete slab simulation method should be adopted and  effects of vertical and horizontal loads should be taken into account.

Keywords:high-rise frame-corewall structure; discrete slab element; finite element simulation of hollow slab floor; mechanical characteristic

作者简介：孙仁范，硕士，教授级高级工程师，Email：sunrenfan@163.com。