鋼柱腳單個錨栓的承載力設計
童根樹 吳光美
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(浙江大學土木系 杭州310027 東華工程公司 合肥230000)
[提要] 對國內(nèi)外鋼柱腳錨栓設計方法進行了回顧和比較，對單個錨栓的破壞模式和承載力進行了總結(jié)。比較發(fā)現(xiàn)，與我國不允許錨栓參與抗剪的規(guī)定相反，歐美國家都考慮錨栓參與抗剪；在錨栓抗拉強度設計值的取值方面，歐美等國將錨栓的強度設計值取與普通螺栓或與制作螺栓的材料相應的強度設計值，而我國規(guī)范的取值則在普通螺栓已經(jīng)較低的基礎上再打8折?；趯鴥?nèi)外不同設計方法的分析歸納，提出了單個錨栓的設計準則的建議，供錨栓設計時參考。[關(guān)鍵詞] 鋼柱腳 錨栓 設計 承載力The design methods of steel column bases used in various countries are reviewed. Load-carrying capacity of a single anchor bolt is summarized. And it is revealed that, in contrary to the current method used in China which does not allow anchor bolts to resist shear force, but in Europe the bolts are allowed to resist shear force. The design stress of anchor bolts is also too conservative in China. A new criterion for anchor bolt is suggested which represents a compromise between various methods.Keywords: anchor bolt; steel column; column base; load-carrying capacity
