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（1 河南五方合創(chuàng)建筑設(shè)計(jì)有限公司， 鄭州 450003； 2 黃河科技學(xué)院， 鄭州 450005）

［摘要］在水平地震作用下，主樓地下室周邊設(shè)外擴(kuò)地下室且與主樓地下室頂板間存在高差的結(jié)構(gòu)對(duì)抗震不利。利用SAP2000建立基于多種影響因素的結(jié)構(gòu)模型，并對(duì)不同處理方案進(jìn)行分析。結(jié)果表明，當(dāng)主樓地下室與外擴(kuò)地下室頂板間存在較大高差時(shí)，應(yīng)優(yōu)先采用在高差處設(shè)上下連接主樓地下室與擴(kuò)展地下室頂板的單梁結(jié)構(gòu)方案，并對(duì)該類建筑的結(jié)構(gòu)設(shè)計(jì)提出建議。

［關(guān)鍵詞］外擴(kuò)地下室； 高差； 抗震設(shè)計(jì)

中圖分類號(hào)：TU318-1文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2017)05-0077-05

Seismic response analysis for the extended basement and main building basement roof with elevation difference

Chen Xianzhi1， Wang Yongwei2

(1 Henan Fivewin Architectural Design Co.,  Ltd.,  Zhengzhou 450003, China;

2 Huanghe Science & Technology College, Zhengzhou 450005, China)

Abstract:Under horizontal earthquake action, it is adverse for the structure if there is an extended basement around the main building basement and there is an elevation difference between the extended basement and main building basement roof. Software SAP2000 was used to establish structural models based on various influential factors, and different processing schemes were analyzed. The result shows if there is a big elevation difference between main building basement and extended basement roof, the scheme should be preferred that a single beam is suggested to set at the place where there is an elevation difference to connect the main building basement and extended basement roof. Some structural design suggestions were put forward for this kind of buildings.

Keywords:extended basement; elevation difference; seismic design

作者簡(jiǎn)介：陳先志，碩士，高級(jí)工程師， Email：cxzcbtgc@126.com。