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绗� 2 绔� 娣峰嚌鍦熺祼(ji茅)妲�(g貌u)鏉愭枡鐨勭墿鐞嗗姏瀛�(xu茅)鎬ц兘

2.1 娣峰嚌鍦熺殑鐗╃悊鍔涘(xu茅)鎬ц兘

2.1.1 娣峰嚌鍦熺殑绲勬垚绲�(ji茅)妲�(g貌u)

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2.1.2 鍠桓鍚戞噳(y墨ng)鍔涚媭鎱�(t脿i)涓嬬殑娣峰嚌鍦熷挤(qi谩ng)搴�

娣峰嚌鍦熺殑寮�(qi谩ng)搴﹁垏姘存偿寮�(qi谩ng)搴︾瓑绱�(j铆)銆佹按鐏版瘮鏈夊緢澶ч棞(gu膩n)绯�;楠ㄦ枡鐨勬€ц唱(zh矛)銆佹贩鍑濆湡鐨勭礆(j铆)閰�銆佹贩鍑濆湡鎴愬瀷鏂规硶銆佺‖鍖栨檪(sh铆)鐨勭挵(hu谩n)澧冩浠跺強娣峰嚌鍦熺殑榻℃湡绛変篃涓嶅悓绋嬪害鍦板奖闊挎贩鍑濆湡鐨勫挤(qi谩ng)搴�;瑭︿欢鐨勫ぇ灏忓拰褰㈢媭銆佽│椹�(y脿n)鏂规硶鍜屽姞杓夐€熺巼涔熷奖闊挎贩鍑濆湡寮�(qi谩ng)搴︾殑瑭﹂(y脿n)绲�(ji茅)鏋溿€傚洜姝ゅ悇鍦�(gu贸)灏�(du矛)鍚勭ó鍠悜鍙楀姏涓嬬殑娣峰嚌鍦熷挤(qi谩ng)搴﹂兘瑕�(gu墨)瀹氫簡绲�(t菕ng)涓€鐨勬(bi膩o)婧�(zh菙n)瑭﹂(y脿n)鏂规硶銆�

1.娣峰嚌鍦熺殑鎶楀寮�(qi谩ng)搴�

(1) 娣峰嚌鍦熺殑绔嬫柟楂旀姉澹撳挤(qi谩ng)搴﹀拰寮�(qi谩ng)搴︾瓑绱�(j铆)

绔嬫柟楂旇│浠剁殑寮�(qi谩ng)搴︽瘮杓冪┅(w臎n)瀹�锛屾墍浠ユ垜鍦�(gu贸)鎶婄珛鏂归珨寮�(qi谩ng)搴﹀€间綔鐐烘贩鍑濆湡寮�(qi谩ng)搴︾殑鍩烘湰鎸囨(bi膩o)锛屽苟鎶婄珛鏂归珨鎶楀寮�(qi谩ng)搴︿綔鐐鸿⿻(p铆ng)瀹氭贩鍑濆湡寮�(qi谩ng)搴︾瓑绱�(j铆)鐨勬(bi膩o)婧�(zh菙n)銆�

1) 娓�(c猫)瀹氱殑鏂规硶

鎴戝湅(gu贸)鍦�(gu贸)瀹舵(bi膩o)婧�(zh菙n)銆婃櫘閫氭贩鍑濆湡鍔涘(xu茅)鎬ц兘瑭﹂(y脿n)鏂规硶銆�(GBJ81-85)瑕�(gu墨)瀹氫互閭婇暦(zh菐ng)鐐�150mm鐨勭珛鏂归珨鐐烘(bi膩o)婧�(zh菙n)瑭︿欢锛屾(bi膩o)婧�(zh菙n)绔嬫柟楂旇│浠跺湪(20±3)鈩冪殑婧害鍜岀浉灏�(du矛)婵曞害90%浠ヤ笂鐨勬疆婵曠┖姘ｄ腑椁�(y菐ng)璀�(h霉)28d锛屾寜鐓ф(bi膩o)婧�(zh菙n)瑭﹂(y脿n)鏂规硶娓�(c猫)寰楃殑鎶楀寮�(qi谩ng)搴︿綔鐐烘贩鍑濆湡鐨勭珛鏂归珨鎶楀寮�(qi谩ng)搴�锛屽柈浣嶇偤N/mm2銆�

2) 绔嬫柟楂旀姉澹撳挤(qi谩ng)搴︽(bi膩o)婧�(zh菙n)鍊糵cu,k

銆婃贩鍑濆湡绲�(ji茅)妲�(g貌u)瑷�(sh猫)瑷�(j矛)瑕�(gu墨)鑼冦€嬭(gu墨)瀹氱敤涓婅堪妯�(bi膩o)婧�(zh菙n)瑭﹂(y脿n)鏂规硶娓�(c猫)寰楃殑鍏锋湁95%淇濊瓑鐜囩殑绔嬫柟楂旀姉澹撳挤(qi谩ng)搴︿綔鐐烘贩鍑濆湡鐨勭珛鏂归珨鎶楀寮�(qi谩ng)搴︽(bi膩o)婧�(zh菙n)鍊�锛岀敤绗﹁櫉(h脿o)fcu,k琛ㄧず銆�

3) 寮�(qi谩ng)搴︾瓑绱�(j铆)鐨勫妰鍒嗗強鏈夐棞(gu膩n)瑕�(gu墨)瀹�

銆婃贩鍑濆湡绲�(ji茅)妲�(g貌u)瑷�(sh猫)瑷�(j矛)瑕�(gu墨)鑼冦€嬭(gu墨)瀹氭贩鍑濆湡寮�(qi谩ng)搴︾瓑绱�(j铆)鎳�(y墨ng)鎸夌珛鏂归珨鎶楀寮�(qi谩ng)搴︽(bi膩o)婧�(zh菙n)鍊糵cu,k纰哄畾銆傛贩鍑濆湡寮�(qi谩ng)搴︾瓑绱�(j铆)鍔冨垎鏈塁15銆丆20銆丆25銆丆30銆丆35銆丆40銆丆45銆丆50銆丆55銆丆60銆丆65銆丆70銆丆75鍜孋80锛屽叡14鍊�(g猫)绛夌礆(j铆)銆備緥濡傦紝C30琛ㄧず绔嬫柟楂旀姉澹撳挤(qi谩ng)搴︽(bi膩o)婧�(zh菙n)鍊肩偤30N /mm2銆傚叾涓紝C50锝濩80灞珮寮�(qi谩ng)搴︽贩鍑濆湡鑼冪枃銆�

銆婃贩鍑濆湡绲�(ji茅)妲�(g貌u)瑷�(sh猫)瑷�(j矛)瑕�(gu墨)鑼冦€嬭(gu墨)瀹氾紝閶肩瓔娣峰嚌鍦熺祼(ji茅)妲�(g貌u)鐨勬贩鍑濆湡寮�(qi谩ng)搴︾瓑绱�(j铆)涓嶆噳(y墨ng)浣庝簬C15;鐣�(d膩ng)閲囩敤HRB335绱�(j铆)閶肩瓔鏅�(sh铆)锛屾贩鍑濆湡寮�(qi谩ng)搴︾瓑绱�(j铆)涓嶅疁浣庝簬C20;鐣�(d膩ng)閲囩敤HRB400鍜孯RB400绱�(j铆)閶肩瓔浠ュ強鎵垮彈閲嶅京(f霉)鑽疯級鐨勬(g貌u)浠�锛屾贩鍑濆湡寮�(qi谩ng)搴︾瓑绱�(j铆)涓嶅緱浣庝簬C20銆傞爯(y霉)鎳�(y墨ng)鍔涙贩鍑濆湡绲�(ji茅)妲�(g貌u)鐨勬贩鍑濆湡寮�(qi谩ng)搴︾瓑绱�(j铆)涓嶆噳(y墨ng)浣庝簬C30;鐣�(d膩ng)閲囩敤閶肩禐绶氥€侀嫾绲�銆佺啽铏曠悊閶肩瓔浣滈爯(y霉)鎳�(y墨ng)鍔涢嫾绛嬫檪(sh铆)锛屾贩鍑濆湡寮�(qi谩ng)搴︾瓑绱�(j铆)涓嶅疁浣庝簬C40o

4) 瑭﹂(y脿n)鏂规硶灏�(du矛)绔嬫柟楂旀姉澹撳挤(qi谩ng)搴︾殑褰遍熆

瑭︿欢鍦ㄨ│椹�(y脿n)姗�(j墨)涓婂柈鍚戝彈澹撴檪(sh铆)锛岃睅鍚戠府鐭�锛屾┇鍚戞摯(ku貌)寮�锛岀敱浜庢贩鍑濆湡鑸囧鍔涙(j墨)澧婃澘褰堟€фā閲忚垏姗悜璁婂舰绯绘暩(sh霉)涓嶅悓锛屽鍔涙(j墨)澧婃澘鐨勬┇鍚戣畩褰㈡槑椤皬浜庢贩鍑濆湡鐨勬┇鍚戣畩褰�锛屾墍浠ュ鏉块€氶亷(gu貌)鎺ヨЦ闈笂鐨勬懇鎿﹀姏绱勬潫娣峰嚌鍦熻│濉婄殑姗悜璁婂舰锛屽氨璞″湪瑭︿欢涓婁笅绔悇鍔犱簡涓€鍊�(g猫)濂楃畭锛岃嚧浣挎贩鍑濆湡鐮村鏅�(sh铆)褰㈡垚鍏╁€�(g猫)灏�(du矛)闋�?sh霉)鎱曟竻F褰㈢牬澹為潰锛屾姉澹撳挤(qi谩ng)搴︽瘮娌�(m茅i)鏈夌磩鏉熺殑鎯呮硜瑕侀珮銆�

濡傛灉鍦ㄨ│浠朵笂涓嬭〃闈㈡秱涓€浜涙饯(r霉n)婊戝姂锛岄€欐檪(sh铆)瑭︿欢鑸囧鍔涙(j墨)澧婃澘闁撶殑鎽╂摝鍔涘ぇ澶ф笡灏�锛屽叾姗悜璁婂舰骞句箮涓嶅彈绱勬潫锛屽彈澹撴檪(sh铆)娌�(m茅i)鏈�“濂楃畭”浣滅敤鐨勫奖闊匡紝瑭︿欢灏囨部钁楀钩琛屼簬鍔涚殑浣滅敤鏂瑰悜鐢�(ch菐n)鐢熷咕姊濊绺€岀牬澹�锛屾脯(c猫)寰楃殑鎶楀寮�(qi谩ng)搴﹀氨浣�銆�

鎴戝湅(gu贸)瑕�(gu墨)瀹氱殑妯�(bi膩o)婧�(zh菙n)瑭﹂(y脿n)鏂规硶鏄笉娑傛饯(r霉n)婊戝姂鐨�銆�

5) 鍔犺級閫熷害灏�(du矛)绔嬫柟楂斿挤(qi谩ng)搴︾殑褰遍熆

鍔犺級閫熷害瓒婂揩锛屾脯(c猫)寰楃殑寮�(qi谩ng)搴﹁秺楂�銆傞€氬父瑕�(gu墨)瀹氬姞杓夐€熷害鐐猴細娣峰嚌鍦熷挤(qi谩ng)搴︾瓑绱�(j铆)浣庝簬C30鏅�(sh铆)锛屽彇姣忕閻�0.3锝�0.5N/mm2;娣峰嚌鍦熷挤(qi谩ng)搴︾瓑绱�(j铆)楂樹簬鎴栫瓑浜嶤30鏅�(sh铆)锛屽彇姣忕閻�0.5锝�0.8N/mm2銆�

6) 榻℃湡灏�(du矛)绔嬫柟楂斿挤(qi谩ng)搴︾殑褰遍熆

娣峰嚌鍦熺殑绔嬫柟楂旀姉澹撳挤(qi谩ng)搴﹂毃钁楁垚鍨嬪悗娣峰嚌鍦熺殑榻℃湡閫愭几澧為暦(zh菐ng)锛屽闀�(zh菐ng)閫熷害闁�(k膩i)濮嬭純蹇�锛屽悗渚�(l谩i)閫愭几绶╂參锛屽挤(qi谩ng)搴﹀闀�(zh菐ng)閬�(gu貌)绋嬪線寰€瑕佸欢绾�(x霉)骞惧勾锛屽湪娼繒鐠�(hu谩n)澧冧腑寰€寰€寤剁簩(x霉)鏇撮暦(zh菐ng)銆�

7) 骞鹃粸(di菐n)瑾�(shu艒)鏄�

鈶� 鏂藉伐鍠綅鎸夊湒绱欒(gu墨)瀹氱殑寮�(qi谩ng)搴︾瓑绱�(j铆)鍒朵綔娣峰嚌鍦�, 鐝�(xi脿n)鍫�(ch菐ng)鐢ㄥ悓妯ｇ殑娣峰嚌鍦熷埗浣滀竴瀹氶噺鐨勮│濉�, 浠ユ椹�(y脿n)鍏剁珛鏂归珨鎶楀寮�(qi谩ng)搴︽槸鍚︽豢瓒宠姹�;

鈶� 绔嬫柟楂旀姉澹撳挤(qi谩ng)搴︽槸鍦ㄥ(sh铆)椹�(y脿n)瀹ゆ浠朵笅鍙栧緱鐨勬姉澹撳挤(qi谩ng)搴�(妯�(bi膩o)婧�(zh菙n)椁�(y菐ng)璀�(h霉)瑭﹀);

鈶� 绲�(ji茅)妲�(g貌u)瀵�(sh铆)楂旂殑鐠�(hu谩n)澧冩浠惰垏瀵�(sh铆)椹�(y脿n)瀹ゆ(bi膩o)椁�(y菐ng)瑭﹀涓嶅悓锛屾(bi膩o)椁�(y菐ng)瑭﹀绔嬫柟楂斿挤(qi谩ng)搴︿笉鑳界湡瀵�(sh铆)鍙嶆噳(y墨ng)绲�(ji茅)妲�(g貌u)瀵�(sh铆)楂旀贩鍑濆湡鐨勬姉澹撳挤(qi谩ng)搴�锛屽繀闋堝鍔犲悓姊濅欢椁�(y菐ng)璀�(h霉)瑭﹀绔嬫柟楂斿挤(qi谩ng)搴︿簣浠ュ垽瀹氱祼(ji茅)妲�(g貌u)瀵�(sh铆)楂旂殑寮�(qi谩ng)搴�;

鈶� 涓嶅悓灏哄瑭︿欢鐨�“灏哄鏁堟噳(y墨ng)” :

fcu(200)×1.05 = fcu(150) =fcu(100)×0.95

(2) 娣峰嚌鍦熺殑杌稿績鎶楀寮�(qi谩ng)搴� fc

娣峰嚌鍦熺殑鎶楀寮�(qi谩ng)搴﹁垏瑭︿欢鐨勫舰鐙€鏈夐棞(gu膩n)锛岄噰鐢ㄦ１鏌遍珨姣旂珛鏂归珨鑳芥洿濂藉湴鍙嶆槧娣峰嚌鍦熺祼(ji茅)妲�(g貌u)鐨勫(sh铆)闅涙姉澹撹兘鍔�銆傜敤娣峰嚌鍦熸１鏌遍珨瑭︿欢娓�(c猫)寰楃殑鎶楀寮�(qi谩ng)搴︾ū杌稿績鎶楀寮�(qi谩ng)銆�

1) 娓�(c猫)瀹氱殑鏂规硶

鎴戝湅(gu贸)銆婃櫘閫氭贩鍑濆湡鍔涘(xu茅)鎬ц兘瑭﹂(y脿n)鏂规硶銆嬭(gu墨)瀹氫互150mm×150mm×300mm鐨勬１鏌遍珨浣滅偤娣峰嚌鍦熻桓蹇冩姉澹撳挤(qi谩ng)搴﹁│椹�(y脿n)鐨勬(bi膩o)婧�(zh菙n)瑭︿欢銆傛１鏌遍珨瑭︿欢鑸囩珛鏂归珨瑭︿欢鐨勫埗浣滄浠剁浉鍚岋紝瑭︿欢涓婁笅琛ㄩ潰涓嶆秱娼�(r霉n)婊戝姂銆傛１鏌遍珨瑭︿欢鐨勬姉澹撳挤(qi谩ng)搴﹂兘姣旂珛鏂归珨鐨勫挤(qi谩ng)搴﹀€煎皬锛屽苟涓旀１鏌遍珨瑭︿欢楂樺姣旇秺澶э紝寮�(qi谩ng)搴﹁秺灏�銆�

2) 杌稿績鎶楀寮�(qi谩ng)搴︽(bi膩o)婧�(zh菙n)鍊糵ck

銆婃贩鍑濆湡绲�(ji茅)妲�(g貌u)瑷�(sh猫)瑷�(j矛)瑕�(gu墨)鑼冦€嬭(gu墨)瀹氫互150mm×150mm×300mm鐨勬１鏌遍珨瑭︿欢瑭﹂(y脿n)娓�(c猫)寰楃殑鍏锋湁95%淇濊瓑鐜囩殑鎶楀寮�(qi谩ng)搴︾偤娣峰嚌鍦熻桓蹇冩姉澹撳挤(qi谩ng)搴︽(bi膩o)婧�(zh菙n)鍊�锛岀敤绗﹁櫉(h脿o)fck琛ㄧず銆�

3) 杌稿績鎶楀寮�(qi谩ng)搴︽(bi膩o)婧�(zh菙n)鍊艰垏绔嬫柟楂旀姉澹撳挤(qi谩ng)搴︽(bi膩o)婧�(zh菙n)鍊肩殑闂�(gu膩n)绯�

鍦�2-4鏄牴鎿�(j霉)鎴戝湅(gu贸)鎵€鍋氱殑娣峰嚌鍦熸１鏌遍珨鑸囩珛鏂归珨鎶楀寮�(qi谩ng)搴﹀皪(du矛)姣旇│椹�(y脿n)鐨勭祼(ji茅)鏋�銆傘€婃贩鍑濆湡绲�(ji茅)妲�(g貌u)瑷�(sh猫)瑷�(j矛)瑕�(gu墨)鑼冦€嬪熀浜庡畨鍏ㄥ彇鍋忎綆鍊�锛岃桓蹇冩姉澹撳挤(qi谩ng)搴︽(bi膩o)婧�(zh菙n)鍊艰垏绔嬫柟楂旀姉澹撳挤(qi谩ng)搴︽(bi膩o)婧�(zh菙n)鍊肩殑闂�(gu膩n)绯绘寜涓嬪紡纰哄畾锛�

fck=0.88αc1αc2fcu,k (2-1)

寮忎腑锛�

αc1——鐐烘１鏌遍珨寮�(qi谩ng)搴﹁垏绔嬫柟楂斿挤(qi谩ng)搴︿箣姣旓紝灏�(du矛)娣峰嚌鍦熷挤(qi谩ng)搴︾瓑绱�(j铆)鐐篊50鍙婁互涓嬬殑鍙�αc1 = 0.76锛屽皪(du矛)C80鍙�αc1 = 0.82锛屽湪姝や箣闁撴寜鐩寸窔瑕�(gu墨)寰嬭畩鍖栧彇鍊�銆�

αc2——鐐洪珮寮�(qi谩ng)搴︽贩鍑濆湡鐨勮剢鎬ф姌娓涚郴鏁�(sh霉)锛屽皪(du矛)C40鍙婁互涓嬪彇αc2 =1.00,灏�(du矛)C80鍙�αc2 =0.87,涓枔鎸夌洿绶氳(gu墨)寰嬭畩鍖栧彇鍊笺€�

0.88——鐐鸿€冩叜瀵�(sh铆)闅涙(g貌u)浠惰垏瑭︿欢娣峰嚌鍦熷挤(qi谩ng)搴︿箣闁撶殑宸暟鑰屽彇鐢ㄧ殑鎶樻笡绯绘暩(sh霉)銆�

鍦�(gu贸)澶栧父閲囩敤娣峰嚌鍦熷湏鏌遍珨瑭︿欢渚�(l谩i)纰哄畾娣峰嚌鍦熻桓蹇冩姉澹撳挤(qi谩ng)搴︺€備緥濡傜編鍦�(gu贸)銆佹棩鏈拰姝愭床娣峰嚌鍦熷崝(xi茅)鏈�(hu矛)(CEB)绯婚噰鐢ㄧ洿寰�6鑻卞(152mm)銆侀珮12鑻卞(305mm)鐨勫湏鏌遍珨妯�(bi膩o)婧�(zh菙n)瑭︿欢鐨勬姉澹撳挤(qi谩ng)搴︿綔鐐鸿桓蹇冩姉澹撳挤(qi谩ng)搴︾殑鎸囨(bi膩o)锛岃浣渇c′銆�

娣峰嚌鍦熻桓蹇� fc′=0.79 fcu,k (2-2)

2. 娣峰嚌鍦熺殑杌稿績鎶楁媺寮�(qi谩ng)搴(w脿n)t

鎶楁媺寮�(qi谩ng)搴︽槸娣峰嚌鍦熺殑鍩烘湰鍔涘(xu茅)鎸囨(bi膩o)涔嬩竴锛屼篃鍙敤瀹冮枔鎺ュ湴琛￠噺娣峰嚌鍦熺殑娌栧垏寮�(qi谩ng)搴︾瓑鍏朵粬鍔涘(xu茅)鎬ц兘銆�

(1)娓�(c猫)瀹氱殑鏂规硶

鍙互閲囩敤鐩存帴杌稿績鍙楁媺鐨勮│椹�(y脿n)鏂规硶渚�(l谩i)娓�(c猫)瀹�銆備絾鏄紝鐢变簬娣峰嚌鍦熷収(n猫i)閮ㄧ殑涓嶅潎鍕绘€�锛屽姞涔嬪畨瑁濊│浠剁殑鍋忓樊绛夊師鍥�锛屾簴(zh菙n)纰烘脯(c猫)瀹氭姉鎷夊挤(qi谩ng)搴︽槸寰堝洶闆ｇ殑銆傛墍浠�锛屽湅(gu贸)鍏�(n猫i)澶栦篃甯哥敤濡傚湒2-5鎵€绀虹殑鍦撴煴楂旀垨绔嬫柟楂旂殑鍔堣瑭﹂(y脿n)渚�(l谩i)闁撴帴娓�(c猫)瑭︽贩鍑濆湡鐨勮桓蹇冩姉鎷夊挤(qi谩ng)搴︺€傛牴鎿�(j霉)褰堟€х悊璜�锛屽妶鎷夊挤(qi谩ng)搴(w脿n)t,s鍙寜涓嬪紡瑷�(j矛)绠楋細

鍦撴煴楂� ft,s=2F/(πdι) (2-3)

绔嬫柟楂� ft,s=2P/πa2

瑭﹂(y脿n)琛ㄦ槑锛屽妶瑁傛姉鎷夊挤(qi谩ng)搴︾暐澶т簬鐩存帴鍙楁媺寮�(qi谩ng)搴�锛屽妶鎷夎│浠剁殑澶у皬灏�(du矛)瑭﹂(y脿n)绲�(ji茅)鏋滀篃鏈変竴瀹氬奖闊�銆傝桓蹇冩姉鎷夊挤(qi谩ng)搴﹀彧鏈夌珛鏂规姉澹撳挤(qi谩ng)搴︾殑1/17锝�1/8锛屾贩鍑濆湡寮�(qi谩ng)搴︾瓑绱�(j铆)鎰堥珮锛岄€欏€�(g猫)姣斿€兼剤灏�銆�

(2) 杌稿績鎶楁媺寮�(qi谩ng)搴(w脿n)tk鑸囩珛鏂归珨鎶楀寮�(qi谩ng)搴(w脿n)cu,k鐨勯棞(gu膩n)绯� 鍦�2-6

ftk=0.88×0.395 fcu,k0.55(1-1.645d) 0.45 × a2 (2-4)

2.1.3 寰�(f霉)鍚堟噳(y墨ng)鍔涚媭鎱�(t脿i)涓嬬殑娣峰嚌鍦熷挤(qi谩ng)搴�

瀵�(sh铆)闅涙贩鍑濆湡绲�(ji茅)妲�(g貌u)妲�(g貌u)浠跺ぇ澶氭槸铏曚簬寰�(f霉)鍚堟噳(y墨ng)鍔涚媭鎱�(t脿i)锛屼緥濡傛鏋舵銆佹煴鏃㈠彈鍒版煴杌稿悜鍔涗綔鐢�锛屽張鍙楀埌褰庣煩鍜屽壀鍔涚殑浣滅敤銆傜瘈(ji茅)榛�(di菐n)鍗€(q奴)娣峰嚌鍦熷彈鍔涚媭鎱�(t脿i)涓€鑸洿鐐哄京(f霉)闆�銆傚悓鏅�(sh铆)锛岀爺绌跺京(f霉)鍚堟噳(y墨ng)鍔涚媭鎱�(t脿i)涓嬫贩鍑濆湡鐨勫挤(qi谩ng)搴�锛屽皪(du矛)浜庤獚(r猫n)璀�(sh铆)娣峰嚌鍦熺殑寮�(qi谩ng)搴︾悊璜栦篃鏈夐噸瑕佺殑鎰忕京銆�

1. 闆欏悜鎳�(y墨ng)鍔涚媭鎱�(t脿i)涓嬫贩鍑濆湡鐨勫挤(qi谩ng)搴�

鍦ㄥ叐鍊�(g猫)骞抽潰浣滅敤钁楁硶鍚戞噳(y墨ng)鍔�σl鍜�σ2锛岀涓夊€�(g猫)骞抽潰涓婃噳(y墨ng)鍔涚偤闆剁殑闆欏悜鎳�(y墨ng)鍔涚媭鎱�(t脿i)涓嬶紝涓嶅悓娣峰嚌鍦熷挤(qi谩ng)搴︾殑浜屽悜鐮村鍖呯怠(lu貌)鍦栧鍦�2-7鎵€绀�锛屽湒涓�σ0鏄柈杌稿悜鍙楀姏鐙€鎱�(t脿i)涓嬬殑娣峰嚌鍦熷挤(qi谩ng)搴︺€備竴鏃﹁秴鍑哄寘绲�(lu貌)绶氬氨鎰忓懗钁楁潗鏂欑櫦(f膩)鐢熺牬澹�銆�

(1) 闆欏悜鍙楁媺: 鍦栦腑绗竴璞￠檺鐐洪洐鍚戝彈鎷夊崁(q奴)锛�σl銆�σ2鐩镐簰褰遍熆涓嶅ぇ锛岄洐鍚戝彈鎷夊挤(qi谩ng)搴﹀潎鎺ヨ繎浜庡柈鍚戝彈鎷夊挤(qi谩ng)搴︺€�

(2) 闆欏悜鍙楀: 绗笁璞￠檺鐐洪洐鍚戝彈澹撳崁(q奴)锛屽ぇ楂斾笂涓€鍚戠殑寮�(qi谩ng)搴﹂毃鍙︿竴鍚戝鍔涚殑澧炲姞鑰屽鍔狅紝娣峰嚌鍦熼洐鍚戝彈澹撳挤(qi谩ng)搴︽瘮鍠悜鍙楀寮�(qi谩ng)搴︽渶澶氬彲鎻愰珮27%銆�

(3) 鎷�--澹撶媭鎱�(t脿i)锛氱浜�銆佸洓璞￠檺鐐烘媺--澹撴噳(y墨ng)鍔涚媭鎱�(t脿i)锛屾鏅�(sh铆)娣峰嚌鍦熺殑寮�(qi谩ng)搴﹀潎浣庝簬鍠悜鎷変几鎴栧绺檪(sh铆)鐨勫挤(qi谩ng)搴�銆�

2. 娉曞悜鎳�(y墨ng)鍔涜垏鍓噳(y墨ng)鍔涚祫鍚堟贩鍑濆湡鐨勫挤(qi谩ng)搴� 鍦�2-8

澹撴噳(y墨ng)鍔涗綆鏅�(sh铆)锛屾姉鍓挤(qi谩ng)搴﹂毃澹撴噳(y墨ng)鍔涚殑澧炲ぇ鑰屽澶�;鐣�(d膩ng)澹撴噳(y墨ng)鍔涚磩瓒呴亷(gu貌)0.6 fc′鏅�(sh铆)锛屾姉鍓挤(qi谩ng)搴﹂毃澹撴噳(y墨ng)鍔涚殑澧炲ぇ鑰屾笡灏忋€備篃灏辨槸瑾�(shu艒)鐢变簬瀛樺湪鍓噳(y墨ng)鍔�锛屾贩鍑濆湡鐨勬姉澹撳挤(qi谩ng)搴﹁浣庝簬鍠悜鎶楀寮�(qi谩ng)搴︺€�

鍙﹀锛岄倓鍙互鐪嬪嚭锛屾姉鍓挤(qi谩ng)搴﹂毃钁楁媺鎳�(y墨ng)鍔涚殑澧炲ぇ鑰屾笡灏�锛屼篃灏辨槸瑾�(shu艒)鍓噳(y墨ng)鍔涚殑瀛樺湪涔熸渻(hu矛)浣挎姉鎷夊挤(qi谩ng)搴﹂檷浣�銆�

3. 涓夊悜鍙楀鐙€鎱�(t脿i)涓嬫贩鍑濆湡鐨勫挤(qi谩ng)搴�

娣峰嚌鍦熷湪涓夊悜鍙楀鐨勬儏娉佷笅锛岀敱浜庡彈鍒板伌(c猫)鍚戝鍔涚殑绱勬潫浣滅敤锛屾渶澶т富澹撴噳(y墨ng)鍔涜桓鐨勬姉澹撳挤(qi谩ng)搴(w脿n)cc′(σl)鏈夎純澶х▼搴︾殑澧為暦(zh菐ng)锛屽叾璁婂寲瑕�(gu墨)寰嬮毃鍏╁伌(c猫)鍚戝鎳�(y墨ng)鍔�(σ2锛�σ3)鐨勬瘮鍊煎拰澶у皬鑰屼笉鍚�銆傚父瑕�(gu墨)鐨勪笁杌稿彈澹撴槸鍦ㄥ湏鏌遍珨鍛ㄥ湇鍔犳恫澹擄紝鍦ㄥ叐鍋�(c猫)鍚戠瓑澹�(σ2=σ3= fL>0)鐨勬儏娉佷笅閫�(j矛n)琛岀殑銆傜敱瑭﹂(y脿n)寰楀埌鐨勭稉(j墨ng)椹�(y脿n)鍏紡鐐猴細

fcc′= fc′+(4.5锝�7.0)fL (2-5)

寮忎腑 fcc′—— 鏈夊伌(c猫)鍚戝鍔涚磩鏉熻│浠剁殑杌稿績鎶楀寮�(qi谩ng)搴�;

fc′—— 鐒�(w煤)鍋�(c猫)鍚戝鍔涚磩鏉熻│浠剁殑杌稿績鎶楀寮�(qi谩ng)搴�;

fL —— 鍋�(c猫)鍚戠磩鏉熷鎳�(y墨ng)鍔�銆�

鍏紡涓�锛宖L鍓嶇殑鏁�(sh霉)瀛楃偤鍋�(c猫)鍚戞噳(y墨ng)鍔涚郴鏁�(sh霉)锛屽钩鍧囧€肩偤5.6,鐣�(d膩ng)鍋�(c猫)鍚戝鎳�(y墨ng)鍔涜純浣庢檪(sh铆)寰楀埌鐨勭郴鏁�(sh霉)鍊艰純楂樸€�

甯歌(ji脿n)宸ョ▼鑼冧緥锛氶嫾绠℃贩鍑濆湡鏌�銆佽灪鏃嬬畭绛嬫煴銆佸瘑鎺掑伌(c猫)鍚戠畭绛嬫煴銆�—— 鍙彁渚涘伌(c猫)鍚戠磩鏉�, 浠ユ彁楂樻贩鍑濆湡鐨勬姉澹撳挤(qi谩ng)搴﹀拰寤舵€с€�

2.1.4 娣� 鍑� 鍦� 鐨� 璁� 褰�

璁婂舰鏄贩鍑濆湡鐨勪竴鍊�(g猫)閲嶈鍔涘(xu茅)鎬ц兘銆傚寘鎷彈鍔涜畩褰㈠拰楂旂⿳璁婂舰銆�

鍙楀姏璁婂舰: 娣峰嚌鍦熷湪涓€娆＄煭鏈熷姞杓夈€佽嵎杓夐暦(zh菐ng)鏈熶綔鐢ㄥ拰澶氭閲嶅京(f霉)鑽疯級浣滅敤涓嬬敘(ch菐n)鐢熺殑璁婂舰锛岄€欓璁婂舰绋辩偤鍙楀姏璁婂舰銆�

楂旂⿳璁婂舰: 娣峰嚌鍦熺敱浜庣‖鍖栭亷(gu貌)绋嬩腑鐨勬敹绺互鍙婃韩搴﹀拰婵曞害璁婂寲鎵€鐢�(ch菐n)鐢熺殑璁婂舰锛岄€欓璁婂舰绋辩偤楂旂⿳璁婂舰銆�

1.涓€娆＄煭鏈熷姞杓変笅娣峰嚌鍦熺殑璁婂舰鎬ц兘

(1)娣峰嚌鍦熷彈澹撴檪(sh铆)鐨勬噳(y墨ng)鍔�--鎳�(y墨ng)璁婇棞(gu膩n)绯�(σ-ε闂�(gu膩n)绯绘洸绶�

涓€娆＄煭鏈熷姞杓夋槸鎸囪嵎杓夊緸闆堕枊(k膩i)濮嬪柈瑾�(di脿o)澧炲姞鑷宠│浠剁牬澹�锛屼篃绋卞柈瑾�(di脿o)鍔犺級銆�

鍦ㄦ櫘閫氳│椹�(y脿n)姗�(j墨)涓婄嵅寰楁湁涓嬮檷娈电殑鎳�(y墨ng)鍔�--鎳�(y墨ng)璁婃洸绶氭槸姣旇純鍥伴洠鐨�銆傝嫢閲囩敤鏈変己鏈嶈缃兘鎺у埗涓嬮檷娈垫噳(y墨ng)璁婇€熷害鐨勭壒娈婅│椹�(y脿n)姗�(j墨)锛屽氨鍙互娓�(c猫)閲忓嚭鍏锋湁鐪熷(sh铆)涓嬮檷娈电殑鎳�(y墨ng)鍔�--鎳�(y墨ng)璁�?n猫i)顐勵實鈧�銆傛垜鍦�(gu贸)閲囩敤妫辨煴楂旇│浠舵脯(c猫)瀹氫竴娆＄煭鏈熷姞杓変笅娣峰嚌鍦熷彈澹撴噳(y墨ng)鍔�--鎳�(y墨ng)璁�?n猫i)顐勵實鈧�?锛熸ⅱ閽ュ惞鍓戭兒@姊濇洸绶氬寘鎷笂鍗囨鍜屼笅闄嶆鍏╁€�(g猫)閮ㄥ垎锛�

1) 涓婂崌娈�(OC)锛屽張鍙垎鐐轰笁娈碉細

OA娈� (σ≤0.3fc 锝� 0.4fc )锛氬緸鍔犺級鑷矨榛�(di菐n)鐐虹1闅庢锛屾贩鍑濆湡鐨勮畩褰富瑕佹槸褰堟€ц畩褰�锛屾噳(y墨ng)鍔涗竴鎳�(y墨ng)璁婇棞(gu膩n)绯绘帴杩戠洿绶�锛岀ūA榛�(di菐n)鐐烘瘮渚嬫サ闄愰粸(di菐n);

AB娈� (σ=0.3fc锝�0.8fc )锛氳秴閬�(gu貌)A榛�(di菐n)锛岄€�(j矛n)浜鸿绺┅(w臎n)瀹氭摯(ku貌)灞曠殑绗�2闅庢锛屾贩鍑濆湡鐨勮畩褰㈢偤褰堝鎬ц畩褰�锛岃嚚鐣岄粸(di菐n)B鐨勬噳(y墨ng)鍔涘彲浠ヤ綔鐐洪暦(zh菐ng)鏈熸姉澹撳挤(qi谩ng)搴︾殑渚濇摎(j霉);

BC娈� (σ=0.8fc锝�1.0fc)锛氳绺揩閫熺櫦(f膩)灞曠殑涓嶇┅(w臎n)瀹氱媭鎱�(t脿i)鐩磋嚦宄伴粸(di菐n)C锛岄€欎竴闅庢鐐虹3闅庢锛岄€欐檪(sh铆)鐨勫嘲鍊兼噳(y墨ng)鍔�σmax閫氬父浣滅偤娣峰嚌鍦熸１鏌遍珨鐨勬姉澹撳挤(qi谩ng)搴(w脿n)c锛岀浉鎳�(y墨ng)鐨勬噳(y墨ng)璁婄ū鐐哄嘲鍊兼噳(y墨ng)璁�ε0锛屽叾鍊煎湪0.0015锝�0.0025涔嬮枔娉㈠嫊(d貌ng)锛岄€氬父鍙�ε0=0.002銆�

2) 涓嬮檷娈�(CE)锛�

鍦ㄥ嘲鍊兼噳(y墨ng)鍔涗互鍚庯紝瑁傜斧杩呴€熺櫦(f膩)灞�锛岃│浠剁殑骞冲潎鎳�(y墨ng)鍔涘挤(qi谩ng)搴︿笅闄�锛屾噳(y墨ng)鍔�--鎳�(y墨ng)璁婃洸绶氬悜涓嬪綆鏇�锛岀洿鍒板嚬鍚戠櫦(f膩)鐢熸敼璁婏紝鏇茬窔鍑虹従(xi脿n)“鎷愰粸(di菐n)(D)”銆傝秴閬�(gu貌)“鎷愰粸(di菐n)”锛屾洸绶氶枊(k膩i)濮嬪嚫鍚戞噳(y墨ng)璁婅桓锛屾娈垫洸绶氫腑鏇茬巼鏈€澶х殑涓€榛�(di菐n)E绋辩偤“鏀舵杺榛�(di菐n)”銆傚緸鏀舵杺榛�(di菐n)E闁�(k膩i)濮嬩互鍚庣殑鏇茬窔绋辩偤鏀舵杺娈碉紝閫欐檪(sh铆)璨€氱殑涓昏绺凡寰堝锛屽皪(du矛)鐒�(w煤)鍋�(c猫)鍚戠磩鏉熺殑娣峰嚌鍦�锛屾敹鏂傛EF宸插け鍘荤祼(ji茅)妲�(g貌u)鎰忕京銆�

3) 涓嶅悓寮�(qi谩ng)搴︾殑娣峰嚌鍦熺殑σ-ε闂�(gu膩n)绯绘洸绶氭瘮杓� 鍦�2-10

鈶� 娣峰嚌鍦熷挤(qi谩ng)搴︾瓑绱�(j铆)楂�锛屽叾宄板€兼噳(y墨ng)璁�ε0澧炲姞涓嶅;

鈶� 涓婂崌娈垫洸绶氱浉浼�;

鈶� 涓嬮檷娈靛崁(q奴)鍒ヨ純澶э細寮�(qi谩ng)搴︾瓑绱�(j铆)浣�锛屼笅闄嶆骞崇珐锛屾噳(y墨ng)鍔涗笅闄嶆參;寮�(qi谩ng)搴︾瓑绱�(j铆)楂樼殑娣峰嚌鍦�锛屼笅闄嶆杓冮櫋锛屾噳(y墨ng)鍔涗笅闄嶅緢蹇�銆�(绛夌礆(j铆)楂樼殑娣峰嚌鍦�锛屽彈澹撴檪(sh铆)鐨勫欢鎬т笉濡傜瓑绱�(j铆)浣庣殑娣峰嚌鍦�)

4) 鍔犺級閫熷害灏�(du矛)娣峰嚌鍦熷挤(qi谩ng)搴﹁│椹�(y脿n)鍊肩殑褰遍熆

鈶� 鍔犺級鎱�锛屾渶澶ф噳(y墨ng)鍔涘€兼湁鎵€娓涘皬锛岀浉鎳�(y墨ng)浜庢渶澶ф噳(y墨ng)鍔涘€兼檪(sh铆)鐨勬噳(y墨ng)璁�?c猫)榛�?

鈶� 鍔犺級蹇紝鏈€澶ф噳(y墨ng)鍔涘€兼湁鎵€澧炲ぇ锛岀浉鎳�(y墨ng)浜庢渶澶ф噳(y墨ng)鍔涘€兼檪(sh铆)鐨勬噳(y墨ng)璁婃笡灏�;

(2) 娣峰嚌鍦熷柈杌稿悜鍙楀鎳�(y墨ng)鍔�--鎳�(y墨ng)璁婃洸绶氱殑鏁�(sh霉)瀛�(xu茅)妯″瀷

1)缇庡湅(gu贸) E.Hognestad 寤鸿鐨勬ā鍨�

妯″瀷鐨勪笂鍗囨鐐轰簩娆℃媼鐗╃窔,涓嬮檷娈电偤鏂滅洿绶�銆�

涓婂崌娈碉細 (2-6)

涓嬮檷娈碉細 (2-7)

寮忎腑 fc——宄板€兼噳(y墨ng)鍔�(妫辨煴楂旀サ闄愭姉澹撳挤(qi谩ng)搴�);

ε銆�——鐩告噳(y墨ng)浜庡嘲鍊兼噳(y墨ng)鍔涙檪(sh铆)鐨勬噳(y墨ng)璁�锛屽彇ε銆�=0.002;

εu——妤甸檺澹撴噳(y墨ng)璁�锛屽彇εu =0.0038銆�

2)寰峰湅(gu贸)Rusch寤鸿鐨勬ā鍨�

瑭叉ā鍨嬪舰寮忚純绨�(ji菐n)鍠�锛屾ā鍨嬬殑涓婂崌娈典篃閲囩敤浜屾鎷嬬墿绶�,涓嬮檷娈靛墖閲囩敤姘村钩鐩寸窔銆�

涓婂崌娈碉細 (2-8)

涓嬮檷娈碉細 (2-9)

寮忎腑 ε銆�=0.002;εu =0.0035銆�

(3) 涓夊悜鍙楀鐙€鎱�(t脿i)涓嬫贩鍑濆湡鐨勮畩褰㈢壒榛�(di菐n)

娣峰嚌鍦熻│浠舵┇鍚戝彈鍒扮磩鏉熸檪(sh铆)锛屽彲浠ユ彁楂樺叾鎶楀寮�(qi谩ng)搴︼紝涔熷彲浠ユ彁楂樺叾寤舵€�銆�

涓夊悜鍙楀涓嬫贩鍑濆湡鍦撴煴楂旂殑杌稿悜鎳�(y墨ng)鍔�--鎳�(y墨ng)璁婃洸绶氬彲浠ョ敱鍛ㄥ湇鐢ㄦ恫楂斿鍔涘姞浠ョ磩鏉熺殑鍦撴煴楂旈€�(j矛n)琛屽姞澹撹│椹�(y脿n)寰楀埌銆傞毃钁楀伌(c猫)鍚戝鍔涚殑澧炲姞锛岃│浠剁殑寮�(qi谩ng)搴﹀拰寤舵€ч兘鏈夐’钁楁彁楂�銆�

宸ョ▼涓婂彲浠ラ€氶亷(gu貌)瑷�(sh猫)缃瘑鎺掕灪鏃嬬瓔鎴栫畭绛嬩締(l谩i)绱勬潫娣峰嚌鍦�锛屾敼鍠勯嫾绛嬫贩鍑濆湡绲�(ji茅)妲�(g貌u)鐨勫彈鍔涙€ц兘銆�

(4) 娣峰嚌鍦熺殑璁婂舰妯￠噺

鑸囧綀鎬ф潗鏂欎笉鍚�锛屾贩鍑濆湡鍙楀鎳�(y墨ng)鍔�--鎳�(y墨ng)璁婇棞(gu膩n)绯绘槸涓€姊濇洸绶�锛屽湪涓嶅悓鐨勬噳(y墨ng)鍔涢殠娈碉紝鎳�(y墨ng)鍔涜垏鎳�(y墨ng)璁婁箣姣旂殑璁婂舰妯￠噺鏄竴鍊�(g猫)璁婃暩(sh霉)?锛涚偡類舵亱娣栧唭鏂囷肌鍧戣叆缂︽隘類燦琛ㄧず鏂规硶銆�

1) 娣峰嚌鍦熺殑褰堟€фā閲�(鍗冲師榛�(di菐n)妯￠噺)

鍦ㄦ噳(y墨ng)鍔�--鎳�(y墨ng)璁婃洸绶氱殑鍘熼粸(di菐n)(鍦栦腑鐨凮榛�(di菐n))浣滀竴鍒囩窔锛屽叾鏂滅巼鐐烘贩鍑濆湡鐨勫師榛�(di菐n)妯￠噺锛岀ū鐐哄綀鎬фā閲忥紝浠c琛ㄧず銆�

Ec=tgαo (2-10)

寮忎腑 αo——娣峰嚌鍦熸噳(y墨ng)鍔�--鎳�(y墨ng)璁婃洸绶氬湪鍘熼粸(di菐n)铏曠殑鍒囩窔鑸囨┇鍧愭(bi膩o)鐨勫ぞ瑙�銆�

褰堟€фā閲忕殑娓�(c猫)瑭︽柟娉曪細灏�(du矛)妯�(bi膩o)婧�(zh菙n)灏哄150mm×150mm×300mm鐨勬１鏌遍珨瑭︿欢锛屽厛鍔犺級鑷�σ=0.5fc锛岀劧鍚庡嵏杓夎嚦闆�锛屽啀閲嶅京(f霉)鍔犺級鍗歌級5 锝�10娆�銆傜敱浜庢贩鍑濆湡涓嶆槸褰堟€ф潗鏂欙紝姣忔鍗歌級鑷虫噳(y墨ng)鍔涚偤闆舵檪(sh铆)锛屽瓨鍦ㄦ畼浣欒畩褰�锛岄毃钁楀姞杓夋鏁�(sh霉)澧炲姞锛屾噳(y墨ng)鍔�--鎳�(y墨ng)璁婃洸绶氭几瓒ㄧ┅(w臎n)瀹氬苟鍩烘湰涓婅定浜庣洿绶�銆傝┎鐩寸窔鐨勬枩鐜囧嵆瀹氱偤娣峰嚌鍦熺殑褰堟€фā閲忋€�

2) 娣峰嚌鍦熺殑璁婂舰妯￠噺

閫ｆ帴鍦�2-15涓璒榛�(di菐n)鑷虫洸绶氫换涓€榛�(di菐n)鎳�(y墨ng)鍔涚偤σc铏曞壊绶氱殑鏂滅巼锛岀ū鐐轰换鎰忛粸(di菐n)鍓茬窔妯￠噺鎴栫ū璁婂舰妯￠噺銆傜敱浜庣附璁婂舰εc涓寘鍚綀鎬ц畩褰�εela鍜屽鎬ц畩褰�εpla鍏╅儴鍒�锛岀敱姝ゆ墍纰哄畾鐨勬ā閲忎篃鍙ū鐐哄綀濉戞€фā閲�銆傚畠鐨勮〃閬�(d谩)寮忕偤锛�

Ec′=tgα1 (2-11)

娣峰嚌鍦熺殑璁婂舰妯￠噺鏄€�(g猫)璁婂€硷紝瀹冮毃鎳�(y墨ng)鍔涘ぇ灏忚€屼笉鍚�銆�

3)娣峰嚌鍦熺殑鍒囩窔妯￠噺

鍦ㄦ贩鍑濆湡鎳�(y墨ng)鍔�--鎳�(y墨ng)璁婃洸绶氫笂鏌愪竴鎳�(y墨ng)鍔�σc铏曚綔涓€鍒囩窔锛屽叾鎳�(y墨ng)鍔涘閲忚垏鎳�(y墨ng)璁�?c猫)闅芥亹顔堟垘鎹鐐虹浉鎳�(y墨ng)浜庢噳(y墨ng)鍔�σc鏅�(sh铆)娣峰嚌鍦熺殑鍒囩窔妯￠噺銆�

Ec′′=tgα (2-12)

娣峰嚌鍦熺殑鍒囩窔妯￠噺涔熸槸涓€鍊�(g猫)璁婂€硷紝瀹冮毃钁楁贩鍑濆湡鐨勬噳(y墨ng)鍔涘澶ц€屾笡灏�銆�

娉ㄦ剰锛氭贩鍑濆湡涓嶆槸褰堟€ф潗鏂欙紝鎵€浠ヤ笉鑳界敤宸茬煡鐨勬贩鍑濆湡鎳�(y墨ng)璁婁箻浠ヨ(gu墨)鑼冧腑鎵€绲︾殑褰堟€фā閲忓€煎幓姹傛贩鍑濆湡鐨勬噳(y墨ng)鍔�銆傚彧鏈夌暥(d膩ng)娣峰嚌鍦熸噳(y墨ng)鍔涘緢浣庢檪(sh铆)锛屽畠鐨勫綀鎬фā閲忚垏璁婂舰妯￠噺鍊兼墠杩戜技鐩哥瓑銆傛贩鍑濆湡鐨勫綀鎬фā閲忓彲鎸変笅寮忚▓(j矛)绠�

(kN/mm2) (2-13)

(5) 娣峰嚌鍦熻桓鍚戝彈鎷夋檪(sh铆)鐨勬噳(y墨ng)鍔�--鎳�(y墨ng)璁婇棞(gu膩n)绯�

鏇茬窔褰㈢媭鑸囧彈澹撴檪(sh铆)鐩镐技锛屽叿鏈変笂鍗囨鍜屼笅闄嶆銆傝│椹�(y脿n)娓�(c猫)瑭﹁〃鏄庯紝鍦ㄨ│浠跺姞杓夌殑鍒濇湡锛岃畩褰㈣垏鎳�(y墨ng)鍔涘憟绶氭€у闀�(zh菐ng)锛岃嚦宄板€兼噳(y墨ng)鍔涚殑40%锝�50%閬�(d谩)姣斾緥妤甸檺锛屽姞杓夎嚦宄板€兼噳(y墨ng)鍔涚殑76%锝�83%鏅�(sh铆)锛屾洸绶氬嚭鐝�(xi脿n)鑷ㄧ晫榛�(di菐n)(鍗宠绺笉绌�(w臎n)瀹氭摯(ku貌)灞曠殑璧烽粸(di菐n))锛屽埌閬�(d谩)宄板€兼噳(y墨ng)鍔涙檪(sh铆)灏�(du矛)鎳�(y墨ng)鐨勬噳(y墨ng)璁婂彧鏈�75×10-6 锝�115×10-6銆傛洸绶氫笅闄嶆鐨勫潯搴﹂毃娣峰嚌鍦熷挤(qi谩ng)搴︾殑鎻愰珮鑰屾洿闄″抄銆傚彈鎷夊綀鎬фā閲忚垏鍙楀褰堟€фā閲忓€煎熀鏈浉鍚�銆�

2. 鑽疯級闀�(zh菐ng)鏈熶綔鐢ㄤ笅娣峰嚌鍦熺殑璁婂舰鎬ц兘(寰愯畩)

(1)寰愯畩鐨勬蹇�

绲�(ji茅)妲�(g貌u)鎴栨潗鏂欐壙鍙楃殑鑽疯級鎴栨噳(y墨ng)鍔涗笉璁婏紝鑰屾噳(y墨ng)璁婃垨璁婂舰闅ㄦ檪(sh铆)闁撳闀�(zh菐ng)鐨勭従(xi脿n)璞＄ū鐐哄緪璁�銆傛贩鍑濆湡鐨勫緪璁婄壒鎬т富瑕佽垏鏅�(sh铆)闁撳弮鏁�(sh霉)鏈夐棞(gu膩n)銆�

1) 鍔犺嵎鐬檪(sh铆)璁婂舰εela

鐣�(d膩ng)灏�(du矛)妫辨煴楂旇│浠跺姞杓�锛屾噳(y墨ng)鍔涢仈(d谩)鍒�(0.1锝�1.0)fc鏌愪竴鍊兼檪(sh铆)锛屽叾鍔犺級鐬枔鐢�(ch菐n)鐢熺殑鎳�(y墨ng)璁�?y艒u)妯楃煍r(sh铆)鎳�(y墨ng)璁�εela銆�

2) 娣峰嚌鍦熺殑寰愯畩εcr

鑻ヤ繚鎸佽嵎杓変笉璁婏紝闅ㄨ憲鍔犺級浣滅敤鏅�(sh铆)闁撶殑澧炲姞锛屾噳(y墨ng)璁婁篃灏囩辜绾�(x霉)澧為暦(zh菐ng)锛岄€欏氨鏄贩鍑濆湡鐨勫緪璁�εcr銆備竴鑸紝寰愯畩闁�(k膩i)濮嬪闀�(zh菐ng)杓冨揩锛屼互鍚庨€愭几娓涙參锛岀稉(j墨ng)閬�(gu貌)杓冮暦(zh菐ng)鏅�(sh铆)闁撳悗灏遍€愭几瓒ㄤ簬绌�(w臎n)瀹�銆傚緪璁婃噳(y墨ng)璁婂€肩磩鐐虹灛鏅�(sh铆)鎳�(y墨ng)璁婄殑1-4鍊嶃€�

(2) 绶氭€у緪璁婂拰闈炵窔鎬у緪璁�

娣峰嚌鍦熺殑寰愯畩鑸囨贩鍑濆湡鐨勬噳(y墨ng)鍔涘ぇ灏忔湁钁楀瘑鍒囩殑闂�(gu膩n)绯�銆傛噳(y墨ng)鍔涜秺澶у緪璁婁篃瓒婂ぇ锛岄毃钁楁贩鍑濆湡鎳�(y墨ng)鍔涚殑澧炲姞锛屾贩鍑濆湡寰愯畩灏囩櫦(f膩)鐢熶笉鍚岀殑鎯呮硜:

1) 绶氭€у緪璁�

鐣�(d膩ng)娣峰嚌鍦熸噳(y墨ng)鍔�σc≤0.5fc鏅�(sh铆)锛屽緪璁婅垏鎳�(y墨ng)鍔涙垚姝ｆ瘮锛屾洸绶氭帴杩戠瓑闁撹窛鍒嗗竷锛岄€欑ó鎯呮硜绋辩偤绶氭€у緪璁�銆�

2) 闈炵窔鎬у緪璁�

鐣�(d膩ng)娣峰嚌鍦熸噳(y墨ng)鍔�σc>0.5fc鏅�(sh铆)锛屽緪璁婅畩褰㈣垏鎳�(y墨ng)鍔涗笉鎴愭姣�锛屽緪璁婅畩褰㈡瘮鎳�(y墨ng)鍔涘闀�(zh菐ng)瑕佸揩锛岀ū鐐洪潪绶氭€у緪璁�銆傚湪闈炵窔鎬у緪璁婅寖鍦嶅収(n猫i)锛岀暥(d膩ng)鍔犺級鎳�(y墨ng)鍔涢亷(gu貌)楂樻檪(sh铆)锛屽緪璁婅畩褰㈡€ュ妵澧炲姞涓嶅啀鏀舵杺锛屽憟闈炵┅(w臎n)瀹氬緪璁婄殑鐝�(xi脿n)璞★紝鍙兘閫犳垚娣峰嚌鍦熺殑鐮村?锛涚偡類剁織?g貌u)浠跺湪浣跨敤鏈熼枔锛屾噳(y墨ng)鐣�(d膩ng)閬垮厤缍�(j墨ng)甯歌檿浜庝笉璁婄殑楂樻噳(y墨ng)鍔涚媭鎱�(t脿i)銆�

涓€鑸湴, 娣峰嚌鍦熼暦(zh菐ng)鏈熸姉澹撳挤(qi谩ng)搴﹀彇(0.75锝�0.8)fc銆�

(3) 鐢�(ch菐n)鐢熷緪璁婄殑涓昏鍘熷洜

1) 姘存偿鑶犻珨鐨勫鎬ц畩褰�銆傚姞杓夋檪(sh铆)娣峰嚌鍦熺殑榻℃湡瓒婃棭锛屽緪璁�?c猫)閰辫焼?/p>

2) 娣峰嚌鍦熷収(n猫i)閮ㄥ井瑁傜斧鐨勬寔绾�(x霉)鐧�(f膩)灞�銆�

(4) 褰遍熆寰愯畩鐨勫洜绱�

1) 鍏�(n猫i)鍦ㄥ洜绱犫攢鈹€娣峰嚌鍦熺祫鎴愭垚鍒�

姘存偿鐢ㄩ噺瓒婂锛屽緪璁�?c猫)閰�?姘寸伆姣旇秺澶�锛屽緪璁婁篃瓒婂ぇ銆傞鏂欏綀鎬ф€ц唱(zh矛)涔熸槑椤湴褰遍熆寰愯畩鍊�锛屼竴鑸�锛岄鏂欒秺鍫�(ji膩n)纭�锛屽綀鎬фā閲忚秺楂�锛屽皪(du矛)姘存偿鐭冲緪璁婄殑绱勬潫浣滅敤瓒婂ぇ锛屾贩鍑濆湡鐨勫緪璁�?c猫)鍙€€?/p>

2) 鐠�(hu谩n)澧冨洜绱犫攢鈹€椁�(y菐ng)璀�(h霉)鍙婁娇鐢ㄦ檪(sh铆)鐨勬韩搴︺€佹繒搴�

椁�(y菐ng)璀�(h霉)鏅�(sh铆)婧害楂�銆佹繒搴﹀ぇ锛屾按娉ユ按鍖栦綔鐢ㄥ厖鍒�锛屽緪璁�?c猫)鍙�?鑰屼娇鐢ㄥ彈鍒拌嵎杓変綔鐢ㄥ悗鎵€铏曠殑鐠�(hu谩n)澧冩韩搴﹁秺楂�銆佹繒搴﹁秺浣庯紝鍓囧緪璁�?c猫)閰辫焼?/p>

3) 鎳�(y墨ng)鍔涙浠垛攢鈹€娣峰嚌鍦熺殑鎳�(y墨ng)鍔涘ぇ灏�

娣峰嚌鍦熺殑鎳�(y墨ng)鍔涜秺澶у緪璁婁篃瓒婂ぇ銆�

(5) 寰愯畩灏�(du矛)娣峰嚌鍦熺祼(ji茅)妲�(g貌u)鍜屾(g貌u)浠剁殑宸ヤ綔鎬ц兘鐨勫奖闊�

鐢变簬娣峰嚌鍦熺殑寰愯畩锛屾渻(hu矛)浣挎(g貌u)浠剁殑璁婂舰澧炲姞锛屽湪閶肩瓔娣峰嚌鍦熸埅闈腑寮曡捣鎳�(y墨ng)鍔涢噸鍒嗗竷銆傚湪闋�(y霉)鎳�(y墨ng)鍔涙贩鍑濆湡绲�(ji茅)妲�(g貌u)涓渻(hu矛)閫犳垚闋�(y霉)鎳�(y墨ng)鍔涙悕澶�銆�

3. 娣峰嚌鍦熷湪鑽疯級閲嶅京(f霉)浣滅敤涓嬬殑璁婂舰(鐤插嫗璁婂舰)

娣峰嚌鍦熺殑鐤插嫗鏄湪鑽疯級閲嶅京(f霉)浣滅敤涓嬬敘(ch菐n)鐢熺殑?锛涚偡類剁寧璇ゅアd閲嶅京(f霉)浣滅敤涓嬪紩璧风殑鐮村绋辩偤鐤插嫗鐮村銆傜柌鍕炵従(xi脿n)璞″ぇ閲忓瓨鍦ㄤ簬宸ョ▼绲�(ji茅)妲�(g貌u)涓�锛岄嫾绛嬫贩鍑濆湡鍚婅粖姊佸彈鍒伴噸寰�(f霉)鑽疯級鐨勪綔鐢�锛岄嫾绛嬫贩鍑濆湡閬撴⿱鍙楀埌杌婅紱鎸嫊(d貌ng)鐨勫奖闊夸互鍙婃腐鍙ｆ捣宀哥殑娣峰嚌鍦熺祼(ji茅)妲�(g貌u)鍙楀埌娉㈡氮娌栨搳鑰屾悕鍌风瓑閮藉爆浜庣柌鍕炵牬澹炵従(xi脿n)璞�銆傜柌鍕炵牬澹炵殑鐗瑰緛鏄绺皬鑰岃畩褰㈠ぇ銆�

(1) 娣峰嚌鍦熷湪鑽疯級閲嶅京(f霉)浣滅敤涓嬬殑鎳�(y墨ng)鍔�--鎳�(y墨ng)璁婃洸绶�

1)σ1鎴�σ2

2)σ3>fcf鏅�(sh铆): 闁�(k膩i)濮�锛屾贩鍑濆湡鎳�(y墨ng)鍔�--鎳�(y墨ng)璁婃洸绶氬嚫鍚戞噳(y墨ng)鍔涜桓锛屽湪閲嶅京(f霉)鑽疯級閬�(gu貌)绋嬩腑閫愭几璁婃垚鐩寸窔锛屽啀缍�(j墨ng)閬�(gu貌)澶氭閲嶅京(f霉)鍔犲嵏杓夊悗锛屽叾鎳�(y墨ng)鍔�--鎳�(y墨ng)璁婃洸绶氱敱鍑稿悜鎳�(y墨ng)鍔涜桓鑰岄€愭几鍑稿悜鎳�(y墨ng)璁婅桓锛屼互鑷村姞鍗歌級涓嶈兘褰㈡垚灏侀枆鐠�(hu谩n)锛岄€欐(bi膩o)蹇楄憲娣峰嚌鍦熷収(n猫i)閮ㄥ井瑁傜斧鐨勭櫦(f膩)灞曞姞鍔囪定杩戠牬澹�銆傞毃钁楅噸寰�(f霉)鑽疯級娆℃暩(sh霉)鐨勫鍔�锛屾噳(y墨ng)鍔�--鎳�(y墨ng)璁婃洸绶氬偩瑙掍笉鏂锋笡灏�锛岃嚦鑽疯級閲嶅京(f霉)鍒版煇涓€瀹氭鏁�(sh霉)鏅�(sh铆)锛屾贩鍑濆湡瑭︿欢鏈�(hu矛)鍥犲毚(y谩n)閲嶉枊(k膩i)瑁傛垨璁婂舰閬�(gu貌)澶ц€屽皫(d菐o)鑷寸牬澹�銆�

(2) 娣峰嚌鍦熺殑鐤插嫗寮�(qi谩ng)搴(w脿n)cf

1) 娓�(c猫)瀹氭柟娉�

娣峰嚌鍦熺殑鐤插嫗寮�(qi谩ng)搴︾敤鐤插嫗瑭﹂(y脿n)娓�(c猫)瀹氥€傜柌鍕炶│椹�(y脿n)閲囩敤100mm×l00mm×300mm鎴�150mm×150mm×450mm鐨勬１鏌遍珨锛屾妸鑳戒娇妫辨煴楂旇│浠舵壙鍙�200钀�(w脿n)娆℃垨鍏朵互涓婂惊鐠�(hu谩n)鑽疯級鑰岀櫦(f膩)鐢熺牬澹炵殑澹撴噳(y墨ng)鍔涘€肩ū鐐烘贩鍑濆湡鐨勭柌鍕炴姉澹撳挤(qi谩ng)搴�銆�

2) 鐤插嫗鎳�(y墨ng)鍔涙瘮鍊�ρcf

娣峰嚌鍦熺殑鐤插嫗寮�(qi谩ng)搴﹁垏閲嶅京(f霉)浣滅敤鏅�(sh铆)鎳�(y墨ng)鍔涜畩鍖栫殑骞呭害鏈夐棞(gu膩n)銆傚湪鐩稿悓鐨勯噸寰�(f霉)娆℃暩(sh霉)涓�锛岀柌鍕炲挤(qi谩ng)搴﹂毃钁楃柌鍕炴噳(y墨ng)鍔涙瘮鍊肩殑娓涘皬鑰屽澶с€傜柌鍕炴噳(y墨ng)鍔涙瘮鍊�ρcf鎸変笅寮忚▓(j矛)绠楋細

ρcf =σcf,min/ σcf,max (2-14)

寮忎腑 σcf,min銆�σcf,max琛ㄧず鎴潰鍚屼竴绾栫董涓婄殑娣峰嚌鍦熸渶灏忔噳(y墨ng)鍔涘強鏈€澶ф噳(y墨ng)鍔涖€�

4. 娣峰嚌鍦熺殑鏀剁府鑸囪啫鑴�

娣峰嚌鍦熷嚌绲�(ji茅)纭寲鏅�(sh铆)锛屽湪绌烘埃涓珨绌嶆敹绺�锛屽湪姘翠腑楂旂⿳鑶ㄨ劰銆傞€氬父锛屾敹绺€兼瘮鑶ㄨ劰鍊煎ぇ寰堝銆傛贩鍑濆湡鐨勬敹绺€奸毃钁楁檪(sh铆)闁撹€屽闀�(zh菐ng)锛岃捀姹介(y菐ng)璀�(h霉)娣峰嚌鍦熺殑鏀剁府鍊艰灏忎簬甯告韩椁�(y菐ng)璀�(h霉)涓嬬殑鏀剁府鍊笺€�

椁�(y菐ng)璀�(h霉)涓嶅ソ浠ュ強娣峰嚌鍦熸(g貌u)浠剁殑鍥涘懆鍙楃磩鏉熷緸鑰岄樆姝㈡贩鍑濆湡鏀剁府鏅�(sh铆)锛屾渻(hu矛)浣挎贩鍑濆湡妲�(g貌u)浠惰〃闈㈡垨姘存偿鍦伴潰涓婂嚭鐝�(xi脿n)鏀剁府瑁傜斧銆�

褰遍熆娣峰嚌鍦熸敹绺殑鍥犵礌鏈夛細

(1) 姘存偿鐨勫搧绋細姘存偿寮�(qi谩ng)搴︾瓑绱�(j铆)瓒婇珮鍒舵垚鐨勬贩鍑濆湡鏀剁府瓒婂ぇ銆�

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