- 摘 要
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(中煤科工重慶設計研究院(集團)有限公司, 重慶 400016)
摘要: 重慶某辦公建筑是框架-剪力墻結(jié)構(gòu),綜合判定屬于平面、豎向不規(guī)則超限高層建筑. 介紹了該建筑的主要特點以及超限情況,并對地基基礎、結(jié)構(gòu)布置、構(gòu)造設計等相關(guān)內(nèi)容進行了簡要說明. 針對項目特點及超限情況,主要采取了以下措施:1)增加平面連接薄弱部位樓板厚度;2) 大跨度框支框架采用型鋼混凝土結(jié)構(gòu);3) 樓板大開洞部位設置鋼筋混凝土斜撐. 針對整體結(jié)構(gòu)、關(guān)鍵構(gòu)件、復雜節(jié)點,采用了 SATWE、MIDAS Building、MIDAS Gen、ANSYS 等軟件進行了多遇地震、設防地震及預估罕遇地震作用下分析對比和補充驗算. 結(jié)果表明結(jié)構(gòu)各項設計指標均滿足規(guī)范要求,結(jié)構(gòu)抗震性能良好,結(jié)構(gòu)體系安全可行,該結(jié)構(gòu)能達到設定的 D 級(局部 C 級)抗震性能目標.
關(guān)鍵詞: 超限結(jié)構(gòu); 框支框架; 型鋼混凝土; 鋼筋混凝土斜撐; 抗震性能設計
中圖分類號:TU398+. 2,TU318 文獻標志碼:A 文章編號:1002-848X(2022)05-0114-08
DOI:10. 19701 / j. jzjg. 20200772
Structural design and analysis of an over-limit high-rise office building in Chongqing
YU Hengbing
(CCTEG Chongqing Engineering (Group) Co., Ltd., Chongqing 400016, China)
Abstract:An office building in Chongqing is frame-shear wall structure, which is comprehensively judged to be a over-limithigh-rise building with irregular plane and vertical directions. The main characteristics of the building and over-limitsituation were introduced, and the ground and foundation, structure layout, structural design and other related content werebriefly explained. In view of the characteristics of the project and the over-limit situation, the following measures weremainly taken :1) the thickness of the floor in the weak part of the plane connection was increased; 2) steel reinforcedconcrete structure was applied to large-span frame-supported frames; 3) reinforced concrete diagonal brace was set at thelarge opening part of the floor slab. For the whole structure, key components, complex nodes, SATWE, MIDAS Building,MIDAS Gen, ANSYS and other software were used to perform analysis, comparison and supplementary check calculationsunder the effects of frequent earthquakes, fortification earthquakes, and estimated rare earthquakes. The results show thatall the design indicators of the structure meet the demands of codes, and the seismic performance of the structure is welland the structure is safe and reliable, the structure can achieve set D ( local C) seismic performance goals.
Keywords:over-limit structure; frame-supported frame; steel reinforced concrete; reinforced concrete diagonal brace;seismic performance design
第一作者:于恒兵,學士,高級工程師,一級注冊建造師,主要從事建筑結(jié)構(gòu)、巖土工程設計工作,Email:370420450@ qq. com.
[引用本文] 于恒兵. 重慶某超限高層辦公建筑結(jié)構(gòu)設計與分析[ J] . 建筑結(jié)構(gòu),2022,52( 5) :114-121,113. YUHengbing. Structural design and analysis of an over-limit high-rise office building in Chongqing[ J] . Building Structure,2022,52(5) :114-121,113.
