- 摘 要
-
（北京建院約翰馬丁國際建筑設計有限公司， 北京 100045）
［摘要］鎮(zhèn)江新區(qū)文化館地上兩層，地下一層，屬于大跨度圓形劇場。地上結構采用鋼框架結構，屋頂采用平面交叉桁架，地下室采用型鋼混凝土結構，樓屋面板采用鋼筋桁架樓承板。由于本工程建筑功能需要樓板大開洞，局部設夾層，結構存在扭轉不規(guī)則、樓板不連續(xù)、剛度突變及穿層柱等多項不規(guī)則，為特別不規(guī)則多層建筑。根據計算分析結果和概念設計方法，對關鍵、重要構件和薄弱部位做了適當的加強和性能設計，保證結構在地震作用下的延性以及其他各種作用效應下的可靠性。并采用YJK和MIDAS Gen軟件進行小震下應力比包絡結果設計，保證結構的安全性。對地上鋼結構的次梁進行了優(yōu)化，對其按組合樓蓋設計，適當降低了次梁的用鋼量，滿足了業(yè)主對建設成本的控制要求。
［關鍵詞］鎮(zhèn)江新區(qū)文化館； 大跨度圓形劇場； 鋼框架； 平面交叉桁架； 型鋼混凝土； 鋼筋桁架樓承板； 不規(guī)則建筑
中圖分類號：TU393-3文獻標識碼：A文章編號：1002-848X(2019)18-0082-05
Structural design of Zhenjiang New District Cultural Center
Feng Chuanchuan, Ji Jianping, Lu Hui, Wang Tieying
(BIAD-John Martin International Architectural Design, Beijing 100045, China)
Abstract:Zhenjiang New District Cultural Center consists of two floors above the ground and one basement. It belongs to a large-span amphitheater. The above-ground structure adopts steel frame structure, roof structure uses plane cross trusses, basement design embraces the steel reinforced concrete structure, and the roof & ceiling board selects reinforced truss floor slab. Because the function of this building project requires large openings on the floor and partially interlayers, there are multiple irregular structural items in this project including irregular torsion, discontinuous floor slab, sudden change in stiffness and skip-layer columns. This building is a particularly irregular multi-story building accordingly. According to the calculation results analyses and conceptual design, the appropriate strengthening design was applied on both the key components and weak parts to ensure the ductility of the structure under earthquakes and other various effects. The envelope design was conducted by YJK and MIDAS Gen software to calculate stress ratio under frequent earthquakes to ensure the structural safety. The secondary steel beams on the above-ground floor were optimized according to composite floor slabs. This appropriately reduced steel consumption and met the requirements of the construction cost control.
Keywords:Zhenjiang New District Cultural Center; large-span amphitheater; steel frame; planar intersecting truss; steel reinforced concrete; reinforced truss floor slab; irregular building
作者簡介：馮川川，學士，工程師，一級注冊結構工程師，Email：88095421@qq.com。
