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     申  林  胡天兵  蔡益燕
    （中國(guó)建筑標(biāo)準(zhǔn)設(shè)計(jì)研究所  北京 100044）

[提要]《門式剛架輕型房屋鋼結(jié)構(gòu)技術(shù)規(guī)程》( CECS102:2002)對(duì)門式剛架結(jié)構(gòu)的抗震計(jì)算規(guī)定不是十分明確。通過(guò)地震烈度、剛架跨度、剛架高度等幾種參數(shù)的組合，計(jì)算分析了單跨門式剛架結(jié)構(gòu)需要進(jìn)行抗震設(shè)計(jì)的臨界尺寸，供設(shè)計(jì)人員參考。
[關(guān)鍵詞]  門式剛架結(jié)構(gòu)  抗震  地震烈度  剛架跨度  剛架高度  臨界尺寸

The prescripts of seismic calculation of gabled frames( GF)in the Technical Specijication for Stee, l Structure of Light weig4ht Buildings with Gabled Frame3 are not definite. Critical dimensions, which indicate the gabled frame need seismic design, are worked out by taking into account the combination of seismic intensity, span of GF, height of GF. The conclusion should be beneficial to engineers.
Keywords: gabled frames( GF); seismic design; seismic intensity; span; height; critical dimensions