銆€銆€鐩村埌b榛炴銆俁eH榛炴槸涓婂眻鏈嶅挤搴�, ReL榛炴槸涓嬪眻鏈嶅挤搴�, ReL涔熷彲绋辩偤灞堟湇妤甸檺,鐣�(d膩ng)鎳�(y墨ng)鍔涘埌閬擱eH榛炴檪,閶兼潗鎶垫姉澶栧姏鑳藉姏涓嬮檷,鐧�(f膩)鐢�"灞堟湇"鐝�(xi脿n)璞�銆俁eL鏄眻鏈嶉殠娈垫噳(y墨ng)鍔涙尝鍕曠殑娆′綆鍊�,瀹冭〃绀洪嫾鏉愬湪宸ヤ綔鐙€鎱�(t脿i)鍏佽ū閬斿埌鐨勬噳(y墨ng)鍔涘€�,鍗冲湪ReL涔嬪墠,閶兼潗涓嶆渻鐧�(f膩)鐢熻純澶х殑濉戞€ц畩褰�銆傛晠鍦ㄨō(sh猫)瑷堜腑涓€鑸互涓嬪眻鏈嶅挤搴︿綔鐐哄挤搴﹀彇鍊肩殑渚濇摎(j霉)銆傜⒊绱犵祼(ji茅)妲�(g貌u)閶糛235鐨� 鎳�(y墨ng)涓嶅皬浜�235MPa銆�

銆€銆€(3)寮峰寲闅庢

銆€銆€bc鐐哄挤鍖栭殠娈点€傞亷b榛炲悗,鎶垫姉濉戞€ц畩褰㈢殑鑳藉姏鍙堥噸鏂版彁楂�,璁婂舰鐧�(f膩)灞曢€熷害姣旇純 闅ㄨ憲鎳�(y墨ng)鍔涚殑鎻愰珮鑰屽鍔�銆傚皪鎳�(y墨ng)浜庢渶楂橀粸C鐨勬噳(y墨ng)鍔�,绋辩偤鎶楁媺寮峰害,鐢≧m琛ㄧず, Rm=Fm/S0 (Fm鐐篶榛炴檪鑽疯級, S0鐐鸿│浠跺彈鍔涙埅闈㈤潰绌�)銆�

銆€銆€鎶楁媺寮峰害涓嶈兘鐩存帴鍒╃敤,浣嗕笅灞堟湇寮峰害鍜屾姉鎷夊挤搴︾殑姣斿€�(鍗冲眻寮锋瘮ReL/Rm)鍙嶆槧閶兼潗鐨勫畨鍏ㄥ彲闈犵▼搴﹀拰鍒╃敤鐜�銆傚眻寮锋瘮瓒婂皬,琛ㄦ槑鏉愭枡鐨勫畨鍏ㄦ€у拰鍙潬鎬ц秺楂�. 鏉愭枡涓嶆槗鐧�(f膩)鐢熷嵄闅殑鑴嗘€ф柗瑁傘€傚鏋滃眻寮锋瘮澶皬,鍓囧埄鐢ㄧ巼浣�,閫犳垚閶兼潗娴不銆傜⒊绱犵祼(ji茅) Q235鐨凴m鎳�(y墨ng)涓嶅皬浜�375MPa,灞堝挤姣斿湪0.58~0.63涔嬮枔銆�

銆€銆€灏嶄簬鍦ㄥ鍔涗綔鐢ㄤ笅灞堟湇鐝�(xi脿n)璞′笉鏄庨’鐨勭‖閶奸,瑕�(gu墨)瀹氱敘(ch菐n)鐢熸畼浣欒畩褰㈢偤0.2%Lo鏅傜殑鎳�(y墨ng)鍔涗綔鐐哄眻鏈嶅挤搴�,鐢≧p0.2琛ㄧず銆�

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銆€銆€灏囨媺鏂风殑閶兼潗鎷煎悎鍚�,娓嚭妯�(bi膩o)璺濋儴鍒嗙殑闀峰害,渚垮彲鎸変笅寮忔眰寰楀叾鏂峰悗浼搁暦鐜嘇:

銆€銆€A= ×100%

銆€銆€寮忎腑L0涓€涓€瑭︿欢鍘熷妯�(bi膩o)璺濋暦搴�, mm;

銆€銆€Lu——瑭︿欢鎷夋柗鍚庢(bi膩o)璺濋儴鍒嗙殑闀峰害, mm銆�

銆€銆€浠鍜孉1l.3鍒嗗垾琛ㄧずLo = 5do鍜孡o = 10do鏅傜殑鏂峰悗浼搁暦鐜�, d0鐐鸿│浠剁殑鍘熺洿寰戞垨鍘氬害銆傚皪浜庡悓涓€閶兼潗,A澶т簬A1l.3銆�

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2010骞寸祼(ji茅)妲�(g貌u)甯€冭│9鏈�18銆�19鏃�      

绲�(ji茅)妲�(g貌u)宸ョ▼甯熀绀�(ch菙)绉戠洰(涓€)鑰冭│鏅€氬寲瀛�(xu茅)绶寸繏(x铆)椤屽尟绺�    2010骞存敞鍐婄祼(ji茅)妲�(g貌u)宸ョ▼甯ā鎿闆嗛對
 
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