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（重慶華森建筑設(shè)計(jì)顧問有限公司， 重慶 401120）

［摘要］抗震設(shè)防烈度為6度時(shí)，樓層剪重比不小于最小剪重比（λmin）是規(guī)范中的強(qiáng)制性條文，分析了執(zhí)行此條文存在的難點(diǎn)和問題。通過對(duì)位于重慶地區(qū)一棟建筑物一系列計(jì)算分析后，表明不滿足λmin不能簡單得出結(jié)構(gòu)布局的合理性有問題，通過調(diào)整結(jié)構(gòu)布局來滿足λmin會(huì)導(dǎo)致結(jié)構(gòu)抗震安全性過高、造價(jià)過大。根據(jù)實(shí)際分析情況，最后提出了調(diào)整樓層剪重比宜采用的方法。

［關(guān)鍵詞］設(shè)防烈度6度； 剪重比； 結(jié)構(gòu)布局； 抗震安全； 結(jié)構(gòu)造價(jià)

中圖分類號(hào)：TU318-1文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2016)13-0052-05

Discussion on the shear-weight ratio in 6-degree seismic precautionary intensity region

Zhao Jielin

( Chongqing Huasen Architectural Designing Consultants Co., Ltd.,  Chongqing 401120， China)

Abstract:When the seismic fortification intensity is 6 degree, it is the mandatory provisions in the specification that the floor shear-weight ratio is no less than the minimum shear-weight ratio (λmin). The difficulties and problems in the implementation of this provision were analyzed. Through a series of calculation and analysis on a building located in Chongqing area, it shows that it cannot simply draw a conclusion of structural layout rationality problem if λmin is not fulfilled. To meet λmin through adjusting the structural layout will lead to over high structural seismic safety and too large cost. According to the actual situation, the method of adjusting the floor shear-weight ratio was put forward.

Keywords:6-degree seismic precautionary intensity; shear-weight ratio; structural layout; seismic safety; structural cost

作者簡介：趙杰林，碩士，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：zhaojielin-1@163.com。