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（1深圳市力鵬工程結(jié)構(gòu)技術(shù)有限公司， 深圳 518034；2 深圳市力鵬建筑結(jié)構(gòu)設(shè)計(jì)事務(wù)所， 深圳 518034）

［摘要］在高層及超高層建筑中，空心板樓蓋不但要傳遞豎向荷載，還要在水平荷載作用下協(xié)調(diào)內(nèi)筒和外框結(jié)構(gòu)分擔(dān)的剪力。對(duì)空心板樓蓋的模擬方法進(jìn)行了探討，通過(guò)與實(shí)體單元的對(duì)比研究，提出了采用離散板單元的方法來(lái)模擬空心板。以249m前海國(guó)際能源金融中心T1塔樓為例，結(jié)合實(shí)際空心板的構(gòu)成，詳細(xì)介紹了空心板作為離散板與其他構(gòu)件外框梁、外框柱、暗梁、核心筒外墻等的連接部位的模擬。指出了空心板樓蓋在豎向荷載和水平荷載作用下暗梁不能為空心板提供有效的支撐，外框巨柱邊及核心筒外墻邊空心板承受的彎矩和剪力較大。對(duì)于實(shí)際工程中空心板樓蓋的高層框筒結(jié)構(gòu)建議采用離散板的模擬方法并同時(shí)考慮豎向荷載及水平荷載的影響。

［關(guān)鍵詞］高層框筒結(jié)構(gòu)； 離散板單元； 空心板樓蓋有限元模擬； 受力特點(diǎn)

中圖分類(lèi)號(hào)：TU318文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：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

作者簡(jiǎn)介：孫仁范，碩士，教授級(jí)高級(jí)工程師，Email：sunrenfan@163.com。