无抗剪键地锚螺栓抗剪承载能力研究

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中图分类号：TU391 文献标志码：A 文章编号：2095-2945（2025）24-0103-04

Abstract：Inthecurentdomesticspecifications，regardingthebearingcapacityofgroundanchorbolts，onlyrelevant requirementsaremadefortheirpull-outresistanceandnorequirementsaremadefortheshearbearingcapacityofthebolts. Basedonthesupport structureoftheflexuralmemberandthemechanicalcalculation modelof thegroundanchorboltthatonly considersbendingdeformation，thispaperanalyzestheinfluenceofthenumberofgroundanchorbolts，thediameterofthescrew andtheshearstrengthofthescrewmaterialontheshearbearingcapacityofthesupprtwithoutconsideringtheshearkey.Itis concludedthattheshear bearingcapacityprovidedbythegroundanchorboltatthesupportoftheflexural memberismuch greaterthantheshearforcegeneratedbyexteralloadatthesupport.Thisshowsthatitisreasonablethatthespecificationdoes not require the shear capacity of bolts.

Keywords： steel member; ground anchor bolt; bearing; shear key; shear capacity

在实际工程中，型钢或轻钢竖向受力构件与基础的连接方式有焊接和螺栓连接。（剩余4430字）