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杌稿績鍙楀姏妲�(g貌u)浠讹細

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1.杌稿績鍙楁媺妲�(g貌u)浠�

妲�(g貌u)浠舵墍鍙楃殑鍔�锛屼娇妲�(g貌u)浠舵┇鏂烽潰鍍呯敘(ch菐n)鐢熷潎鍕绘媺鎳�(y墨ng)鍔涙檪鍗崇偤杌稿績鍙楁媺妲�(g貌u)浠躲€傚父鐢ㄤ簬妗佹灦鐨勪笅寮︽】鍙婂彈鎷夋枩鑵规】銆�

σ1=F/bh

姝ゆ(g貌u)浠剁殑鎵胯級鑳藉姏鐐�σ1≤[σ]

寮忎腑 [σ]——鏉愭枡鐨勫厑瑷辨噳(y墨ng)鍔�

閫欑ó妲�(g貌u)浠舵渶鑳藉厖鍒嗙櫦(f膩)鎻潗鏂欑殑寮�(qi谩ng)搴�

2.杌稿績鍙楀妲�(g貌u)浠�

澶栧姏浠ュ鍔涚殑鏂瑰紡浣滅敤鍦ㄦ(g貌u)浠剁殑杌稿績铏�锛屼娇妲�(g貌u)浠剁敘(ch菐n)鐢熷潎鍕诲鎳�(y墨ng)鍔涙檪锛屽嵆鐐鸿桓蹇冨彈澹撴(g貌u)浠�

鍏舵埅闈㈡噳(y墨ng)鍔涚偤锛�σ1=F/bh

浣嗚桓蹇冨彈澹撴(g貌u)浠剁殑瀵�(sh铆)闅涙壙杓夊姏鏄敱绌�(w臎n)瀹氭€ф帶鍒讹紝绌�(w臎n)瀹氱郴鏁�(sh霉)Ψ≤1锛屾晠鍏舵壙杓夊姏鐨勮〃閬�(d谩)寮忕偤锛�

σ2=F/Ψbh≤[σ] (6-3)

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