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(華東建筑設(shè)計研究院有限公司, 上海 200002)
摘要: 鹽城鐵路綜合交通樞紐項目由高鐵站房和客運樞紐東西廣場組成. 著重對高鐵站房屋蓋和客運樞紐西廣場交通中心的結(jié)構(gòu)設(shè)計關(guān)鍵技術(shù)進行了介紹. 結(jié)構(gòu)選型方面,闡述了利用基于 Grasshopper 平臺的找形工具以應(yīng)變能最小為優(yōu)化目標確定高鐵站房屋蓋桁架跨中高度;計算分析方面,對站房屋蓋采用 SAP2000 和 ABAQUS 軟件分別進行了彈性分析和罕遇地震下的彈塑性時程分析,對交通中心花柱結(jié)構(gòu)采用 ETABS 軟件進行最不利截面的混凝土和鋼筋應(yīng)力分析,對交通中心弦支網(wǎng)格結(jié)構(gòu)天窗采用 SAP2000 軟件進行彈性分析以及考慮材料非線性和幾何非線性的全過程屈曲分析;關(guān)鍵節(jié)點方面,介紹了站房屋面桁架支座節(jié)點以及交通中心花柱結(jié)構(gòu)梁柱節(jié)點、弦支結(jié)構(gòu)的拉桿與撐桿連接節(jié)點和相關(guān)支座節(jié)點. 通過以上結(jié)構(gòu)設(shè)計關(guān)鍵技術(shù),在確保結(jié)構(gòu)安全可靠和有效實施的同時,達到建筑方案的預(yù)期效果.
關(guān)鍵詞: 結(jié)構(gòu)選型; 大跨鋼結(jié)構(gòu); 變截面花柱; 弦支結(jié)構(gòu)
中圖分類號:TU398. 7 文獻標志碼:A 文章編號:1002-848X(2022)09-0113-06
DOI:10. 19701 / j. jzjg. HDY2229
Key technologies of structural design for Yancheng railway comprehensive transportation hub
TAO Xianghua, LI Yanpeng, ZHOU Jian, DING Lin, YUAN Peixin, GU Chaoyang
(East China Architectural Design & Research Institute Co. , Ltd. , Shanghai 200002, China)
Abstract: Yancheng railway comprehensive transportation hub is composed of high-speed rail station and passengertransport hub east and west square. The key technologies of structural design of high-speed railway station roof andpassenger transport hub west square traffic center were introduced. In the aspect of structural selection, the mid-span heightof high-speed railway station roof truss was determined by using the shape-finding tool based on Grasshopper platform withthe minimum strain energy as the optimization objective. In the aspect of calculation and analysis, the elastic analysis andelastic-plastic time history analysis of station roof under rare earthquake were carried out by SAP2000 and ABAQUSsoftware respectively. For the traffic center variable section column structure, the stress analysis of concrete and steel barsin the most unfavorable section was carried out by ETABS software, and the elastic analysis and the whole process bucklinganalysis considering material nonlinearity and geometric nonlinearity were carried out by SAP2000 software for the cablesupported grid structure in the traffic center. In terms of the key nodes, the truss support nodes of the station roof, thebeam-column details of the variable section column structure of the traffic center, the connection details of the tension barsand the supporting bars in the cable-supported structure and the related support nodes were introduced. Through the abovekey structural design technologies, the expected effect of the construction scheme was achieved while ensuring the safe,reliable and effective implementation of the structure.
Keywords:structural selection; long span steel structure; variable section column; cable-supported structure
∗華建集團科研項目(21-1 類-0253-結(jié)) .
第一作者:陶湘華,碩士,高級工程師,主要從事復(fù)雜結(jié)構(gòu)設(shè)計和研究,Email:txhl5292@ ecadi. com.
[引用本文] 陶湘華,李彥鵬,周健,等. 鹽城鐵路綜合交通樞紐結(jié)構(gòu)設(shè)計關(guān)鍵技術(shù)[ J] . 建筑結(jié)構(gòu),2022,52( 9) :113-118,146. TAO Xianghua,LI Yanpeng,ZHOU Jian,et al. Key technologies of structural design for Yancheng railwaycomprehensive transportation hub[ J] . Building Structure,2022,52(9) :113-118,146.
