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[摘要]簡述了混凝土結(jié)構(gòu)抗震設(shè)計的概念、特點以及本次規(guī)范修訂內(nèi)容的調(diào)整??拐鹪O(shè)計包括確定結(jié)構(gòu)方案、地震作用以及構(gòu)件的抗震設(shè)計,本規(guī)范反映后一部分內(nèi)容??拐鹪O(shè)計強(qiáng)調(diào)概念設(shè)計,在靜力設(shè)計的基礎(chǔ)上,按抗震等級提出要求,并考慮構(gòu)件抗震破壞的特點進(jìn)行承載力設(shè)計, 避免剪切、壓潰等引起的非延性破壞;并通過截面控制條件、承載力計算系數(shù)調(diào)整及配筋構(gòu)造等措施得以落實。本文介紹了材料、梁、柱、墻、預(yù)應(yīng)力構(gòu)件等的抗震設(shè)計要求。
[關(guān)鍵詞]混凝土結(jié)構(gòu); 抗震; 設(shè)計
中圖分類號:TU318.4文獻(xiàn)標(biāo)識碼:A文章編號:1002-848X(2011)12-0129-05
Introduction of revision of Code for design of concrete structures part Ⅸ:Seismic design of concrete structures
Zhu Aiping, Huang Xiaokun,Xu Youlin(China Academy of Building Research, Beijing 100013, China)
Abstract:The concept and characteristic of seismic design of concrete structure as well as the adjustment of new building code are summarized. Seismic design concludes structure plan, earthquake action and structure member design. The last part is reflected in this code. In seismic design, the concept design is emphasized. According to the anti-seismic grade, based on the static design, the load capacity design of structure must consider the characteristic of seismic failure of members, preventing the non-ductile failure such as shear failure and collapse. That could be controlled by restricting the section condition of member, adjustment by load capacity coefficient and construction measures. The seismic design requirements to the material, beams, columns, walls and prestressed members are introduced.
Keywords:concrete structure; seismic design
作者簡介:朱愛萍,工程師;黃小坤,研究員;徐有鄰,研究員。
注:本文由徐有鄰執(zhí)筆。