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（北京市建筑設(shè)計(jì)研究院， 北京 100045）

［摘要］廣州新客站屋蓋為大跨度空間鋼結(jié)構(gòu)，主要由預(yù)應(yīng)力索拱和預(yù)應(yīng)力索殼組成，整體穩(wěn)定是結(jié)構(gòu)設(shè)計(jì)的控制因素之一。在多種不利荷載組合作用下，分別研究了主站房和無(wú)站臺(tái)柱雨棚屋頂鋼結(jié)構(gòu)的線性穩(wěn)定性能，并進(jìn)行了考慮幾何非線性、材料非線性和初始缺陷的非線性穩(wěn)定分析。結(jié)果表明，屋蓋結(jié)構(gòu)具有良好的整體穩(wěn)定性能。

［關(guān)鍵詞］廣州新客站;屋頂鋼結(jié)構(gòu);非線性整體穩(wěn)定

Integral stability analysis on steel roof structures of New Guangzhou Railway Station

Qin Kai, Xu Fujiang, Ke Changhua, Sheng Ping, Zhu Zhongyi(Beijing Institute of Architectural Design, Beijing 100045, China)

Abstract:The roof structures of New Guangzhou Railway Station are long-span spatial steel structures, and are mainly composed of prestress arch structures and prestress shell structures. The structural system is complex and the scale is very large，and the integral stability is one of the key problems of structural design. The linear stability of roof structures is studied under multiple kinds of worst load combinations, and also the nonlinear stability analysis of roof structures is conducted by considering the geometric and material nonlinear, and the initial geometric imperfection. The results show that the integral stability of the roof structures is good.

Keywords:New Guangzhou Railway Station; steel roof structure; nonlinear integral stability

作者簡(jiǎn)介：秦凱，碩士，工程師，Email：1454421@qq.com

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