- 摘 要
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夏美夢1，張良平2，尚文紅2
(1 華森建筑與工程設計顧問有限公司杭州分公司， 杭州 310012；
2 華森建筑與工程設計顧問有限公司， 深圳 518054)
［摘要］以深圳市龍崗區(qū)某裙房建筑為分析對象，結(jié)構(gòu)體系為框架-剪力墻結(jié)構(gòu)。大跨度結(jié)構(gòu)空間均采用鋼梁布置，樓層周邊的平面多處利用雙層桁架向外懸挑延伸。采用MIDAS/Gen軟件進行了多遇地震、設防地震、罕遇地震下結(jié)構(gòu)的彈性樓板應力分析。鑒于大跨度鋼結(jié)構(gòu)和大懸挑結(jié)構(gòu)對人行激勵相對比較敏感,需要對豎向激勵產(chǎn)生的樓板振動問題進行分析。首先考察結(jié)構(gòu)的豎向振動模態(tài)，然后輸入人行激勵，求出樓板的共振頻率及對應的峰值加速度，通過加速度數(shù)據(jù)對樓板舒適度進行評判。
［關(guān)鍵詞］彈性樓板應力； 懸挑結(jié)構(gòu)； 樓板舒適度； 人行激勵； 加速度峰值
中圖分類號： TU355 文獻標識碼： A 文章編號： 1002-848X(2015)S2-0341-06
Floor slab analysis of a multilayer hybrid structure
Xia Meimeng1， Zhang Liangping2， Shang Wenhong2
(1 Huasen Architecture & Engineering Design Consultants Ltd., Hangzhou Branch Company, Hangzhou 310012, China；
2 Huasen Architecture & Engineering Design Consultants Ltd., Shenzhen 518054, China)
Abstract: The analysis object is a multilayer hybrid structure which structural system is the frame-shear wall structure in Longgang district of Shenzhen city. Large span structures are used in the layout of steel beams and the plane around the floor extends outward by the double layer truss. Elastic stress analysis of structural floor under the frequently occurred earthquake and the medium earthquake and the rare earthquake were performed by MIDAS/Gen software. Due to the large span steel structure and large cantilever structure are relatively sensitive to human walking excitation, the floor vibration caused by vertical excitation was analyzed. First, the vertical vibrational mode of the structure was inspected. Then, the resonance frequency and peak acceleration of floor slab were calculated by entering the pedestrian excitation to evaluate the comfortableness of the slab.
Keywords: elastic slab stress; cantilever structure; comfortableness; human activity; peak acceleration
作者簡介：夏美夢，碩士，工程師，Email:hexiameimeng@163.com。
