- 摘 要
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（重慶市設計院， 重慶 400015）
［摘要］重慶某大型商業(yè)裙房，為帶部分剪力墻的框架結(jié)構(gòu)，建筑和結(jié)構(gòu)平面的開洞較多，就形成了薄弱連接的不規(guī)則平面?？拐鹪O計中樓板應具備比抗側(cè)力構(gòu)件更高的抗震性能，針對本工程的結(jié)構(gòu)特點，確定了樓板抗震設計性能目標及預期的震后性能狀態(tài)，采用ABAQUS進行了結(jié)構(gòu)整體的彈塑性時程分析，根據(jù)規(guī)范規(guī)定進行了樓板的受剪承載力計算，從內(nèi)力和損傷進行了對比。分析結(jié)果表明，經(jīng)過設計加強后的薄弱連接部位的樓板可以滿足預定的性能目標。
［關(guān)鍵詞］薄弱連接樓板； 受剪承載力； 罕遇地震； 性能設計
中圖分類號： TU318 文獻標識碼： A文章編號： 1002-848X(2016)S2-0166-04
Floor performance-design on weak joints of a large commercial podium
Du Jing, Shu Yunfeng, Li Deshun, Lin Feng, Li Renpei
(Chongqing Architectural Design Institute, Chongqing 400015, China)
Abstract: A large commercial podium in Chongqing is a reinforced concrete frame structure with a small portion of shear walls. Due to the requirement of building use functions, there are large floor openings and the plane becomes irregular plane with weak connecting slab. In seismic design, floor should have better aseismic behavior than primary lateral load resistant systems. According to the structural characteristics of the project, the seismic design performance objectives and expected post seismic performance status of the floor is determined. The elastic-plastic time history analysis of the overall structure is conducted with FEM program ABAQUS. The shear capacity of reinforced concrete floor slab is calculated according to the code formula, comparison and analysis are made on the calculation results from the respects of internal force and damage. After strengthening, predetermined performance targets of the floor slab of weak connection can be met.
Keywords: floor slab of weak connecting; shear capacity; rare earthquake; performance design
作者簡介： 杜靜，碩士，主任工程師，高級工程師，一級注冊結(jié)構(gòu)工程師，Email：1440422@qq.com。
