高烈度區(qū)某高層建筑綜合樓結(jié)構(gòu)設(shè)計分析
馮軍1,李運檢2
- 摘 要
-
(1 中國漢嘉設(shè)計集團股份有限公司西南設(shè)計院,成都 610081;2 四川隆世豪基建筑設(shè)計顧問有限公司,成都 610031)[摘要]以抗震設(shè)防烈度為9度的某高層建筑結(jié)構(gòu)為實例,基于結(jié)構(gòu)構(gòu)件間的線剛比概念,從結(jié)構(gòu)計算分析和抗震延性措施兩個方面,論述了構(gòu)件之間的相對“強弱”關(guān)系。在抗震概念設(shè)計方面,延伸了“強柱弱梁”的含義,擴展了豎向構(gòu)件“強剪強彎”以及剪力墻連梁“弱連梁不弱”、“強連梁不強”等結(jié)構(gòu)概念。在結(jié)構(gòu)設(shè)計分析階段,應(yīng)同時注重結(jié)構(gòu)的整體控制與局部協(xié)調(diào);強調(diào)協(xié)同工作是提高結(jié)構(gòu)綜合抗震能力的根本;即使結(jié)構(gòu)在遭遇罕遇地震時發(fā)生破壞,此破壞也應(yīng)是一個延性的塑化過程。[關(guān)鍵詞]強與弱;線剛比;協(xié)同工作;芯梁;延性塑化中圖分類號:TU318文獻(xiàn)標(biāo)識碼:A文章編號:1002-848X(2011)08-0008-08Structural design and analysis of a complex building at seismic district of high intensityFeng Jun1,Li Yunjian2(1 China Hanjia Design Group Co., Ltd. Southwest Institute,Chengdu 610081,China;2 Lushokey Architects & Engineers at Sichuan, Chengdu 610031,China)Abstract:A practical building structural analysis at 9 seismic district was presented. Based on linear rigidity ratio of structural members from seismic computational analysis and ductile details, the relative ‘strong-and-weak’ relationship among members was discussed. At the stage of conceptual seismic design, the connotations ‘strong column and weak beam’ and ‘strong shear and strong bend’ were extended. An idea of ‘weak connecting beams not weak and strong not strong’ was presented and -realized by efficient energetic consummation within shear-wall connecting beams. For the analytical structural design, the whole structure control and the parts coordination should be emphasized. Structural design should be accomplished based on structural coordination and aim at increases of anti-seismic ability. Even if structures are damaged under a rare earthquake, the process should be of ductile plasticization.Keywords:strong and weak; linear rigidity ratio; work with coordination; core beam; ductile plasticization作者簡介:馮軍,本科,工程師,一級注冊結(jié)構(gòu)工程師,Email:83359799@163.com。參考文獻(xiàn)[1]GB50011—2001 建筑抗震設(shè)計規(guī)范[S]. 2008年版.北京:中國建筑工業(yè)出版社,2008.[2]馮軍. 如何理解設(shè)防區(qū)“強柱弱梁”、“強剪弱彎”的抗震措施[J]. PKPM新天地,2010(1):35-37.[3]馮軍. 9度設(shè)防區(qū)某辦公樓主體結(jié)構(gòu)設(shè)計[J]. 建筑結(jié)構(gòu),2009,39(8):69-76.[4]GB50223—2008 建筑工程抗震設(shè)防分類標(biāo)準(zhǔn)[S]. 北京:中國建筑工業(yè)出版社,2008.[5]JGJ3—2002 高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程[S]. 北京:中國建筑工業(yè)出版社,2002.[6]朱炳寅. 建筑結(jié)構(gòu)設(shè)計問答及分析[M]. 北京:中國建筑工業(yè)出版社,2009.