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)

鏅€氭贩鍑濆湡鏄敱姘存偿銆佺爞銆佺煶鏉愭枡鐢ㄦ按鎷屽悎纭寲鍚庡舰鎴愮殑浜哄伐鐭虫潗锛屾槸澶氱浉寰�(f霉)鍚堟潗鏂�銆傞€氬父鎶婃贩鍑濆湡鐨勭祼(ji茅)妲�(g貌u)鍒嗙偤涓夌ó鍩烘湰椤炲瀷锛氬井瑙€绲�(ji茅)妲�(g貌u)鍗虫按娉ョ煶绲�(ji茅)妲�(g貌u);浜炲井瑙€绲�(ji茅)妲�(g貌u)鍗虫贩鍑濆湡涓殑姘存偿鐮傛伎绲�(ji茅)妲�(g貌u);瀹忚绲�(ji茅)妲�(g貌u)鍗崇爞婕垮拰绮楅鏂欏叐绲勫垎楂旂郴銆�

寰绲�(ji茅)妲�(g貌u)(姘存偿鐭崇祼(ji茅)妲�(g貌u))鐢辨按娉ュ嚌鑶�銆佹櫠楂旈鏋�銆佹湭姘村寲瀹岀殑姘存偿椤嗙矑鍜屽嚌鑶犲瓟绲勬垚锛屽叾鐗╃悊鍔涘(xu茅)鎬ц兘鍙栨焙浜庢按娉ョ殑鍖栧(xu茅)绀︾墿鎴愬垎銆佺矇纾ㄧ窗(x矛)搴�銆佹按鐏版瘮鍜屽嚌绲�(ji茅)纭寲姊濅欢绛�?锛涚偡類舵亱鏆毀^绲�(ji茅)妲�(g貌u)鑸囦簽寰绲�(ji茅)妲�(g貌u)鏈夎ū澶氬叡鍚岄粸(di菐n)锛屽彲浠ユ妸姘存偿鐮傛伎鐪嬩綔鍩虹浉锛岀矖楠ㄦ枡鍒嗗竷鍦ㄧ爞婕夸腑锛岀爞婕胯垏绮楅鏂欑殑鐣岄潰鏄祼(ji茅)鍚堢殑钖勫急闈€€傞鏂欑殑鍒嗗竷浠ュ強楠ㄦ枡鑸囧熀鐩镐箣闁撳湪鐣岄潰鐨勭祼(ji茅)鍚堝挤(qi谩ng)搴︿篃鏄噸瑕佺殑褰遍熆鍥犵礌銆�

婢嗘敞娣峰嚌鍦�?x铆)r鐨勬硨姘翠綔鐢ㄦ渻(hu矛)寮曡捣娌夌府锛岀‖鍖栭亷绋嬩腑鐢变簬姘存偿婕挎按鍖栭€犳垚鐨勫寲瀛�(xu茅)鏀剁府鍜屽共绺彈鍒伴鏂欑殑闄愬埗锛屾渻(hu矛)鍦ㄤ笉鍚屽堡娆＄殑鐣岄潰寮曡捣绲�(ji茅)鍚堢牬澹�锛屽舰鎴愰毃姗�(j墨)鍒嗗竷鐨勭晫闈㈣绺�銆�

娣峰嚌鍦熶腑鐨勭爞銆佺煶銆佹按娉ヨ啝楂旂祫鎴愪簡褰堟€ч鏋�锛屼富瑕佹壙鍙楀鍔�锛屽苟浣挎贩鍑濆湡鍏锋湁褰堟€ц畩褰㈢殑鐗归粸(di菐n)銆傝€屾按娉ヨ啝楂斾腑鐨勫嚌鑶�銆佸瓟闅欏拰鐣岄潰鍒濆寰绺瓑锛屽湪澶栧姏浣滅敤涓嬩娇娣峰嚌鍦熺敘(ch菐n)鐢熷鎬ц畩褰€€傚彟涓€鏂归潰锛屾贩鍑濆湡涓殑瀛旈殭銆佺晫闈㈠井瑁傜斧绛夌己闄峰張寰€寰€鏄贩鍑濆湡鍙楀姏鐮村鐨勮捣婧�銆�

鐢变簬姘存偿鑶犻珨鐨勭‖鍖栭亷绋嬮渶瑕佸骞存墠鑳藉畬鎴�锛屾墍浠ユ贩鍑濆湡鐨勫挤(qi谩ng)搴﹀拰璁婂舰涔熼毃鏅�(sh铆)闁撻€愭几澧為暦銆�

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�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�銆傚洜姝ゅ悇鍦嬪皪鍚勭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�

绔嬫柟楂旇│浠剁殑寮�(qi谩ng)搴︽瘮杓冪┅(w臎n)瀹�锛屾墍浠ユ垜鍦嬫妸绔嬫柟楂斿挤(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⿻瀹氭贩鍑濆湡寮�(qi谩ng)搴︾瓑绱氱殑妯�(bi膩o)婧�(zh菙n)銆�

1) 娓畾鐨勬柟娉�

鎴戝湅鍦嬪妯�(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害鍜岀浉灏嶆繒搴�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緱鐨勬姉澹撳挤(qi谩ng)搴︿綔鐐烘贩鍑濆湡鐨勭珛鏂归珨鎶楀寮�(qi谩ng)搴�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緱鐨勫叿鏈�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fcu,k琛ㄧず銆�

3) 寮�(qi谩ng)搴︾瓑绱氱殑鍔冨垎鍙婃湁闂�(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︾瓑绱氭噳(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︾瓑绱氬妰鍒嗘湁C15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)绛夌礆銆備緥濡�锛孋30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�锛孋50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�锛岄嫾绛嬫贩鍑濆湡绲�(ji茅)妲�(g貌u)鐨勬贩鍑濆湡寮�(qi谩ng)搴︾瓑绱氫笉鎳�(y墨ng)浣庝簬C15;鐣�(d膩ng)閲囩敤HRB335绱氶嫾绛嬫檪(sh铆)锛屾贩鍑濆湡寮�(qi谩ng)搴︾瓑绱氫笉瀹滀綆浜嶤20;鐣�(d膩ng)閲囩敤HRB400鍜孯RB400绱氶嫾绛嬩互鍙婃壙鍙楅噸寰�(f霉)鑽疯級鐨勬(g貌u)浠�锛屾贩鍑濆湡寮�(qi谩ng)搴︾瓑绱氫笉寰椾綆浜嶤20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︾瓑绱氫笉鎳�(y墨ng)浣庝簬C30;鐣�(d膩ng)閲囩敤閶肩禐绶�銆侀嫾绲层€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︾瓑绱氫笉瀹滀綆浜嶤40o

4) 瑭﹂(y脿n)鏂规硶灏嶇珛鏂归珨鎶楀寮�(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)灏嶉爞?sh霉)鎱曟竻F褰㈢牬澹為潰锛屾姉澹撳挤(qi谩ng)搴︽瘮娌掓湁绱勬潫鐨勬儏娉佽楂樸€�

濡傛灉鍦ㄨ│浠朵笂涓嬭〃闈㈡秱涓€浜涙饯婊戝姂锛岄€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)娌掓湁“濂楃畭”浣滅敤鐨勫奖闊�锛岃│浠跺皣娌胯憲骞宠浜庡姏鐨勪綔鐢ㄦ柟鍚戠敘(ch菐n)鐢熷咕姊濊绺€岀牬澹烇紝娓緱鐨勬姉澹撳挤(qi谩ng)搴﹀氨浣�銆�

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

5) 鍔犺級閫熷害灏嶇珛鏂归珨寮�(qi谩ng)搴︾殑褰遍熆

鍔犺級閫熷害瓒婂揩锛屾脯寰楃殑寮�(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︾瓑绱氫綆浜嶤30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︾瓑绱氶珮浜庢垨绛変簬C30鏅�(sh铆)锛屽彇姣忕閻�0.5锝�0.8N/mm2銆�

6) 榻℃湡灏嶇珛鏂归珨寮�(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℃湡閫愭几澧為暦锛屽闀烽€熷害闁嬪杓冨揩锛屽悗渚嗛€愭几绶╂參锛屽挤(qi谩ng)搴﹀闀烽亷绋嬪線寰€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)鏇撮暦銆�

7) 骞鹃粸(di菐n)瑾槑

鈶� 鏂藉伐鍠綅鎸夊湒绱欒(gu墨)瀹氱殑寮�(qi谩ng)搴︾瓑绱氬埗浣滄贩鍑濆湡, 鐝�(xi脿n)鍫寸敤鍚屾ǎ鐨勬贩鍑濆湡鍒朵綔涓€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︼紝蹇呴爤澧炲姞鍚屾浠堕(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緱鐨勬姉澹撳挤(qi谩ng)搴︾ū杌稿績鎶楀寮�(qi谩ng)銆�

1) 娓畾鐨勬柟娉�

鎴戝湅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�锛岃│浠朵笂涓嬭〃闈笉娑傛饯婊戝姂銆傛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�锛屽挤(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緱鐨勫叿鏈�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)鍊硷紝鐢ㄧ铏焒ck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﹀皪姣旇│椹�(y脿n)鐨勭祼(ji茅)鏋�?锛佺棙鐐奉惗涓(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�锛屽皪娣峰嚌鍦熷挤(qi谩ng)搴︾瓑绱氱偤C50鍙婁互涓嬬殑鍙�αc1 = 0.76锛屽皪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C40鍙婁互涓嬪彇αc2 =1.00,灏岰80鍙�αc2 =0.87,涓枔鎸夌洿绶氳(gu墨)寰嬭畩鍖栧彇鍊�銆�

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�

鍦嬪甯搁噰鐢ㄦ贩鍑濆湡鍦撴煴楂旇│浠朵締纰哄畾娣峰嚌鍦熻桓蹇冩姉澹撳挤(qi谩ng)搴�銆備緥濡傜編鍦�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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畾鐨勬柟娉�

鍙互閲囩敤鐩存帴杌稿績鍙楁媺鐨勮│椹�(y脿n)鏂规硶渚嗘脯瀹�銆備絾鏄�锛岀敱浜庢贩鍑濆湡鍏�(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)纰烘脯瀹氭姉鎷夊挤(qi谩ng)搴︽槸寰堝洶闆ｇ殑銆傛墍浠ワ紝鍦嬪収(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)渚嗛枔鎺ユ脯瑭︽贩鍑濆湡鐨勮桓蹇冩姉鎷夊挤(qi谩ng)搴�銆傛牴鎿�(j霉)褰堟€х悊璜�锛屽妶鎷夊挤(qi谩ng)搴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︼紝鍔堟媺瑭︿欢鐨勫ぇ灏忓皪瑭﹂(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︾瓑绱氭剤楂�锛岄€欏€�(g猫)姣斿€兼剤灏忋€�

(2) 杌稿績鎶楁媺寮�(qi谩ng)搴tk鑸囩珛鏂归珨鎶楀寮�(qi谩ng)搴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�锛屼笉鍚屾贩鍑濆湡寮�(qi谩ng)搴︾殑浜屽悜鐮村鍖呯怠(lu貌)鍦栧鍦�2-7鎵€绀猴紝鍦栦腑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�銆備竴鏃﹁秴鍑哄寘绲�(lu貌)绶氬氨鎰忓懗钁楁潗鏂欑櫦(f膩)鐢熺牬澹炪€�

(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浜屻€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�銆備篃灏辨槸瑾敱浜庡瓨鍦ㄥ壀鎳�(y墨ng)鍔涳紝娣峰嚌鍦熺殑鎶楀寮�(qi谩ng)搴﹁浣庝簬鍠悜鎶楀寮�(qi谩ng)搴�銆�

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忥紝涔熷氨鏄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cc′(σl)鏈夎純澶х▼搴︾殑澧為暦锛屽叾璁婂寲瑕�(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″伌(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�銆�

甯歌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€�銆�

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�銆佽嵎杓夐暦鏈熶綔鐢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勩€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噺鍑哄叿鏈夌湡瀵�(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�銆傛垜鍦嬮噰鐢ㄦ１鏌遍珨瑭︿欢娓畾涓€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�銆傚彲浠ョ湅鍒�锛岄€欐鏇茬窔鍖呮嫭涓婂崌娈靛拰涓嬮檷娈靛叐鍊�(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)绯绘帴杩戠洿绶氾紝绋盇榛�(di菐n)鐐烘瘮渚嬫サ闄愰粸(di菐n);

AB娈� (σ=0.3fc锝�0.8fc )锛氳秴閬嶢榛�(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紝鑷ㄧ晫榛�(di菐n)B鐨勬噳(y墨ng)鍔涘彲浠ヤ綔鐐洪暦鏈熸姉澹撳挤(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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�锛岃绺繀閫熺櫦(f膩)灞�锛岃│浠剁殑骞冲潎鎳�(y墨ng)鍔涘挤(qi谩ng)搴︿笅闄嶏紝鎳�(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�“鎷愰粸(di菐n)”锛屾洸绶氶枊濮嬪嚫鍚戞噳(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闁嬪浠ュ悗鐨勬洸绶氱ū鐐烘敹鏂傛锛岄€欐檪(sh铆)璨€氱殑涓昏绺凡寰堝锛屽皪鐒″伌(c猫)鍚戠磩鏉熺殑娣峰嚌鍦燂紝鏀舵杺娈礒F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︾瓑绱氶珮锛屽叾宄板€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︾瓑绱氫綆锛屼笅闄嶆骞崇珐锛屾噳(y墨ng)鍔涗笅闄嶆參;寮�(qi谩ng)搴︾瓑绱氶珮鐨勬贩鍑濆湡锛屼笅闄嶆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笉濡傜瓑绱氫綆鐨勬贩鍑濆湡)

4) 鍔犺級閫熷害灏嶆贩鍑濆湡寮�(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)璁婂鍔�;

鈶� 鍔犺級蹇�锛屾渶澶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 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Rusch寤鸿鐨勬ā鍨�

瑭叉ā鍨嬪舰寮忚純绨″柈锛屾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�锛屼篃鍙互鎻愰珮鍏跺欢鎬�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€氶亷瑷�(sh猫)缃瘑鎺掕灪鏃嬬瓔鎴栫畭绛嬩締绱勬潫娣峰嚌鍦�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�锛屼互Ec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│鏂规硶锛氬皪妯�(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°€傜敱浜庢贩鍑濆湡涓嶆槸褰堟€ф潗鏂�锛屾瘡娆″嵏杓夎嚦鎳�(y墨ng)鍔涚偤闆舵檪(sh铆)锛屽瓨鍦ㄦ畼浣欒畩褰紝闅ㄨ憲鍔犺級娆℃暩(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閲忋€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€�锛屽畠闅ㄦ噳(y墨ng)鍔涘ぇ灏忚€屼笉鍚屻€�

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)璁婂閲忎箣姣斿€肩ū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€�锛屽畠闅ㄨ憲娣峰嚌鍦熺殑鎳�(y墨ng)鍔涘澶ц€屾笡灏忋€�

娉ㄦ剰锛氭贩鍑濆湡涓嶆槸褰堟€ф潗鏂�锛屾墍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)鍔涖€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?锛涚偡類舵亱鑶规ぅ闃咃肌闈犵爞鑱巼鎺�?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│琛ㄦ槑锛屽湪瑭︿欢鍔犺級鐨勫垵鏈�锛岃畩褰㈣垏鎳�(y墨ng)鍔涘憟绶氭€у闀凤紝鑷冲嘲鍊兼噳(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)灏嶆噳(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浉鍚屻€�

2. 鑽疯級闀锋湡浣滅敤涓嬫贩鍑濆湡鐨勮畩褰㈡€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�锛岃€屾噳(y墨ng)璁婃垨璁婂舰闅ㄦ檪(sh铆)闁撳闀风殑鐝�(xi脿n)璞＄ū鐐哄緪璁�?锛涚偡類舵亱鐢风喅鍏插對鐏鹃顎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)灏嶆１鏌遍珨瑭︿欢鍔犺級锛屾噳(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�锛岄毃钁楀姞杓変綔鐢ㄦ檪(sh铆)闁撶殑澧炲姞锛屾噳(y墨ng)璁婁篃灏囩辜绾�(x霉)澧為暦锛岄€欏氨鏄贩鍑濆湡鐨勫緪璁�εcr銆備竴鑸�锛屽緪璁婇枊濮嬪闀疯純蹇�锛屼互鍚庨€愭几娓涙參锛岀稉(j墨ng)閬庤純闀锋檪(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�銆�

(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緪璁娿€�

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姣旓紝寰愯畩璁婂舰姣旀噳(y墨ng)鍔涘闀疯蹇�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銆傛贩鍑濆湡妲�(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℃湡瓒婃棭锛屽緪璁婅秺澶�銆�

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)灞曘€�

(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锛屽緪璁婅秺澶�;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紝楠ㄦ枡瓒婂爡(ji膩n)纭�锛屽綀鎬фā閲忚秺楂�锛屽皪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婅秺灏�銆�

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�銆佹繒搴�

椁�(y菐ng)璀�(h霉)鏅�(sh铆)婧害楂樸€佹繒搴﹀ぇ锛屾按娉ユ按鍖栦綔鐢ㄥ厖鍒�锛屽緪璁婅秺灏�;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﹁秺楂樸€佹繒搴﹁秺浣�锛屽墖寰愯畩瓒婂ぇ銆�

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) 寰愯畩灏嶆贩鍑濆湡绲�(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°€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): 闁嬪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)鑽疯級閬庣▼涓€愭几璁婃垚鐩寸窔锛屽啀缍�(j墨ng)閬庡娆￠噸寰�(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)閲嶉枊瑁傛垨璁婂舰閬庡ぇ鑰屽皫(d菐o)鑷寸牬澹炪€�

(2) 娣峰嚌鍦熺殑鐤插嫗寮�(qi谩ng)搴cf

1) 娓畾鏂规硶

娣峰嚌鍦熺殑鐤插嫗寮�(qi谩ng)搴︾敤鐤插嫗瑭﹂(y脿n)娓畾銆傜柌鍕炶│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鎴栧叾浠ヤ笂寰挵(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�銆傜柌鍕炴噳(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�銆�

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紝鍦ㄦ按涓珨绌嶈啫鑴�銆傞€氬父锛屾敹绺€兼瘮鑶ㄨ劰鍊煎ぇ寰堝?锛涚偡類舵亱姘栨箾s鍊奸毃钁楁檪(sh铆)闁撹€屽闀�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︾瓑绱氳秺楂樺埗鎴愮殑娣峰嚌鍦熸敹绺秺澶с€�

(2) 姘存偿鐨勭敤閲忥細姘存偿瓒婂锛屾敹绺秺澶�;姘寸伆姣旇秺澶�锛屾敹绺篃瓒婂ぇ銆�

(3) 楠ㄦ枡鐨勬€ц唱(zh矛)锛氶鏂欑殑褰堟€фā閲忓ぇ锛屾敹绺皬銆�

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