- 摘 要
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徐 進1 張博文2 王祖華1（1 華南理工大學土木系 廣州 510641； 2 順德市容桂土地發(fā)展總公司 順德 528305）
[提要] 評述了預應力混凝土框架的抗震性能，并從下列兩個方面探討了保證創(chuàng)造良好抗震性能的設計方法：通過計算保證“強柱弱梁”和控制位移反應；設計合理的配筋指數(shù)、部分預應力比和拉應力限制系數(shù)，保證框架具有良好的延性、耗能能力和符合要求的裂縫寬度。推薦了混凝土設計規(guī)范中目前尚缺乏而工程設計又急需的若干抗震設計控制的建議值。
[關鍵詞] 預應力混凝土 框架結(jié)構(gòu) 抗震設計 延性 地震反應The seismic behavior of a prestressed concrete frame has been evaluated. The design method to create and guarantee good seismic performance of prestressed concrete frames has been discussed from the following two aspects.Through calculation, "a column is stronger than a beam" is guaranteed and displacement response is controlled. A steel bar index, a ratio of partial prestress and a limit coefficient of tensile stress are put to rational design to guarantee good ductility, ability consuming energy and controlling crack in such frame. This paper also recommends some values to control a seismic design, which is absent in present code and necessary in present engineering design.
Keywords: prestressed concrete; frame structure; seismic design; ductility; earthquake response
