申  林  胡天兵  蔡益燕
    （中国建筑标准设计研究所  北京 100044）

[提要]《门式刚架轻型房屋钢结构技术规程》( CECS102:2002)对门式刚架结构的抗震计算规定不是十分明确。通过地震烈度、刚架跨度、刚架高度等几种参数的组合，计算分析了单跨门式刚架结构需要进行抗震设计的临界尺寸，供设计人员参考。
[关键词]  门式刚架结构  抗震  地震烈度  刚架跨度  刚架高度  临界尺寸

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