- 摘 要
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（上海浦東建筑設計研究院有限公司， 上海 201204）
［摘要］雞澤縣“多館合一”由會展中心、博物館、多功能廳、圖書館和青少年活動中心組成，采用鋼-混凝土混合結構體系。屋面考慮了多種最不利風荷載參與的組合工況，結構阻尼比根據鋼和混凝土材料區(qū)分，運用YJK和MIDAS/Gen軟件進行整體分析計算，并采用了ABAQUS軟件對斜向Y形或傘狀格構式異形鋼柱進行了線性屈曲和帶初始缺陷非線性屈曲極限承載力分析，鋼結構與混凝土結構之間的連接根據受力情況采取了一系列有效加強措施。分析結果表明，通過加強屋面鋼結構薄弱部位能夠保證結構的安全性，異形鋼柱設計滿足承載要求，鋼和混凝土兩種材料結構之間的連接是安全可靠的。
［關鍵詞］鋼-混凝土混合結構； 異形鋼柱； 線性屈曲分析； 非線性屈曲分析； 承載力分析
中圖分類號：TU398-9文獻標識碼：A文章編號：1002-848X(2020)23-0008-05
Structural design and analysis of "multi-venues-in-one" in Jize County
HUANG Binhui
（Shanghai Pudong Architectural Design & Research Institute Co., Ltd., Shanghai 201204, China）
Abstract:The "multi-venues-in-one" in Jize County is composed of exhibition center, museum, multi-function hall, library and youth activity center, adopting steel-concrete mixed structural system. The roof considered a variety of combined working conditions involving the most unfavorable wind loads. The structural damping ratio was distinguished according to steel and concrete materials. The YJK and MIDAS/Gen software were used for overall analysis and calculation, and the ABAQUS software was used to analyze the ultimate bearing capacity of linear buckling and nonlinear buckling with initial imperfections of oblique Y-shaped or umbrella-shaped lattice special-shaped steel columns. The connection between the steel structure and the concrete structure adopted a series of effective strengthening measures according to the force situation. The analysis results show that the safety of the structure can be ensured by strengthening the weak parts of the roof steel structure, the special-shaped steel column design meets the bearing capacity requirements, and the connection between the steel and concrete structures is safe and reliable.
Keywords:steel-concrete mixed structure; special-shaped steel column; linear buckling analysis; nonlinear buckling analysis; bearing capacity analysis
作者簡介：黃彬輝，在職博士研究生，高級工程師，一級注冊結構工程師，Email：keyhbh@163.com。
