- 摘 要
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（啟迪設計集團股份有限公司， 蘇州 215021）
［摘要］蘇州軌道交通2號線太平車輛段超長上蓋箱形轉(zhuǎn)換結(jié)構(gòu)為超長混凝土結(jié)構(gòu)，采用ABAQUS軟件計算分析結(jié)構(gòu)的溫度作用，通過對升溫、降溫，恒載+活載+升溫、恒載+活載+降溫，預應力+恒載+活載+升溫、預應力+恒載+活載+降溫6種荷載工況進行溫度應力計算，主要分析了結(jié)構(gòu)構(gòu)件的損傷程度、鋼筋最大應力，樓板最大裂縫等，并對比分析了施加預應力的作用效果，最終達到有效控制梁板應力的目的。
［關(guān)鍵詞］超長上蓋； 箱形轉(zhuǎn)換結(jié)構(gòu)； 溫度應力； 預應力
中圖分類號：TU375文獻標識碼：A文章編號：1002-848X(2017)20-0078-05
Temperature stress analysis on super-long box-shaped transfer structure in upper platform over the subway
Zhang Min, Xu Wenxi, Yang Yukun, Zhang Qin, Ye Jia
(TusDesign Group Co., Ltd., Suzhou 215021， China)
Abstract:The box-shaped transfer structure in upper platform over the Taiping depot of Suzhou Metro Line 2 is a super-long concrete structure. The temperature effect of the structure was calculated and analyzed by using finite element analysis software ABAQUS. Temperature stress calculation was conducted under six load conditions including heating, cooling, the dead loads+live loads+cooling, the dead loads+live loads+heating, prestress+dead loads+live loads+heating, and prestress+dead loads+live loads+cooling. The damage degree of structural components, maximum stress of reinforcement and the maximum crack of floor were mainly analyzed, and the effect of prestress was compared and analyzed to ultimately achieve effective control of stress of the beam and floor.
Keywords:super-long upper platform; box-shaped transfer structure; temperature stress; prestress
作者簡介：張敏，學士，教授級高級工程師，一級注冊結(jié)構(gòu)工程師，總工程師，Email:min.zhang@siad-c.com。
