汽车起重机支腿反力计算方法对比研究

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【中图分类号】：U469 【文献标志码】：A 【文章编号】：1008-3197（2025）04-05-03

【DOI编码】：10.3969/j.issn.1008-3197.2025.04.002

Comparative Study on Calculation Methods for Outrigger Reaction Forces of Truck -mounted Crane

ZHAO Yichao'， WANG Jin 1，2 ， HUANG Keqi1，LINGHU Yan²， LIU Xiaomin1， ZHANG Qian1， XUE Cheng13

（1.China ConstructionSixthEngineringBureauCop.，Ltd.ianjnl2，China;.ChinaStateConsuctionSlkRoadCostuctio

InvestmentGroupCorp.，Ltd.，Xian7OO5，China；3TheFirstCompanyofChinaConstructionSithEngineringBureauCod， Xi'an 710075，China）

【Abstract】：Addressng the issue of numerous simplified calculation methodslacking aunified standard fordetermining outrigger reaction forces of truck-mounted cranes in current engineering practice，this paper compares differentsimplified calculation methods.It demonstrates that the force distribution method is more conservative than the moment distribution method.Furthermore，the most unfavorable working conditions under different boom orientations are investigated.For the moment distribution method，it is found that when theboom is orientedperpendicular tothediagonal directionoftheoutriggers，theoutrigger reactionforcereaches its maximum，representing the most unfavorable condition.

【Key words】： truck-mounted crane；outrigger reaction force;moment distribution method

汽车起重机是常见的施工设备，由于本身的质量和承受的荷载较大，对地面的支腿反力也较大，往往会影响到如地基承载力、地下室顶板承载力等的计算，故对汽车起重机支腿反力计算方法的研究很有意义。（剩余2993字）