婀栧寳鏂版澗寤虹瓚妯℃澘鑲′喚鏈夐檺鍏徃涓烘?zhèn)ㄥ厤璐规彁渚?a href="http://www.fivedollarbookclub.com">寤虹瓚妯℃澘鍘傚銆?a href="/supply/">寤虹瓚妯℃澘澶氬皯涓�寮?/a>銆?a href="/news/">婀栧寳寤虹瓚妯℃澘絳夌浉鍏充俊鎭彂甯冨拰琛屼笟璧勮,鏁鍏蟲敞!
涓�銆佸伐紼嬫鍐?
緇煎悎姘存睜緇撴瀯綾誨瀷涓洪挗絳嬫販鍑濆湡緇撴瀯錛屽緩絳戦潰縐?/span>416.16銕★紝闀?0.4綾籌紝瀹?0.4綾籌紝楂?綾熾�?/b>寤虹瓚緇撴瀯鐨勫畨鍏ㄧ瓑綰т負浜岀駭錛屾姉闇囪闃茬被鍒負涓欑駭錛屾姉闇囪闃茬儓搴︿負8搴︼紝緇撴瀯鎶楅渿絳夌駭涓轟簩綰э紝鑰愮伀絳夌駭涓轟笁綰э紝浣跨敤騫撮檺50騫淬�傜患鍚堝巶鎴跨粨鏋勫艦寮忎負杞婚挗緇撴瀯錛屽緩絳戠粨鏋勭殑瀹夊叏絳夌駭涓轟簩綰э紝鎶楅渿璁鵑槻綾誨埆涓轟笝綰э紝鎶楅渿璁鵑槻鐑堝害涓?搴︼紝緇撴瀯鎶楅渿絳夌駭涓轟簩綰э紝鑰愮伀絳夌駭涓轟笁綰э紝浣跨敤騫撮檺50騫淬�?/span>
浜屻�佹ā鏉挎敮鎾戣璁?
1銆佹ā鏉塊噰鐢?/span>鏈ㄦā鏉?/span>錛岄噰鐢?/span>60脳90銕滄湪鏂?/span>錛岄暱搴?/span>4M銆?/span>
2銆佸竷緗敮鎾戠郴緇熷墠錛屽皢鍦板熀澶勭悊騫沖疄錛屼弗紱佸彈鍔涘湴鍩轟駭鐢熶笅娌夛紝鍙皢鍦伴潰澶疄鎵懼鉤閾哄ぇ浜?/span>50銕滃帤鏈ㄦ澘錛屽熀紜�鍦ㄧ牸涓婄殑鍔犺鍨澘銆?/span>
3銆?/span>姊佹ā鏀拺鏀煴鐨勯棿璺?/span>0.7M錛屾煴鍦ㄩ珮搴︽柟鍚戣緗旱銆佹í姘村鉤鎷夋潌錛屾按騫蟲潌紱誨湴闈?/span>500銕滃乏鍙充竴閬擄紝闅?M涓�閬撱�?/span>
4銆佹澘鐨勬敮鎾戝鏂歸棿璺濅負0.6M錛岀珛欏舵煴闂磋窛0.7M錛岀珛鏌卞湪楂樺害鏂瑰悜璁懼弻鍚戞按騫蟲媺鏉嗭紝澧炲姞鍒氬害鍜岀ǔ瀹氭�с�?/span>
5銆?/span>妯℃澘鏀拺鍦ㄨ嵎杞戒綔鐢ㄤ笅錛屽簲鍏鋒湁蹇呰鐨勫垰搴︺�佸己搴﹀拰紼沖畾鎬?/span>錛屽茍淇濊瘉緇撴瀯鍚勯儴鍒嗗艦鐘躲�佸昂瀵稿拰浣嶇疆鐨勬紜�с�?/span>
6銆佸熀紜�鍋氭硶錛氭ā鏉挎柦宸ユ椂錛?/span>鍩虹搴旇繘琛屾壘騫沖く瀹烇紝閾哄ぇ浜?/span>50銕滃帤鏈ㄦ澘錛岀敤瀵規(guī)嫧鏈ㄦ璋冩暣鏍囬珮銆傚鏀拺鍦ㄧ牸涓婄殑鍔犲灚鏉褲�?/span>
7銆佹ā鏉跨殑鍒朵綔銆佹柦宸ュ伐搴忋�佹柟娉曘�佸畨鍏ㄦ帾鏂斤細妯℃澘閫夌敤鏈ㄦā銆傛嫾瑁呭満鍦板く瀹炲鉤鏁?/span>銆傛墍鐢ㄦ満姊板繀欏諱弗鏍兼寜瑕佹眰鏂藉伐銆?/span>
8銆佹ā鏉跨殑瀹夎銆佹柦宸ュ伐搴忋�佹柟娉曞畨鍏ㄦ帾鏂斤細a)妯℃澘鍫嗘斁錛屽簲閫夋嫨鍦板娍楂樸�佹帓姘磋壇濂姐�佸潥瀹炲鉤鏁淬�佷究浜庢惉榪愬湴鏂瑰彔鏀炬暣榻愶紝鐮佸灈鎴愭柟錛屼笉璁稿崟鍧楀灈鐮佹垨瓚呰繃紼沖畾楂樺害銆?/span>b)鏌辨ā鏉垮畨瑁咃紝鏌辨ā鏉垮畨瑁呭墠搴斿厛灝嗘ā鏉垮仛鎴愬崟鐗囨ā銆傜涓�鐗囨ā鏉垮畨瑁呮椂鐢ㄤ復(fù)鏃舵敮鎾戞垨鐢ㄩ搧涓濅笌鏌變富絳嬩復(fù)鏃剁粦鎵庡浐瀹氾紝闅忓嵆瀹夎浜屻�佷笁銆佸洓鐗囨ā鏉匡紝鍋氬ソ涓存椂鏀拺鍜屽浐瀹氥�傚厛瀹夎涓婁笅涓や釜鏌辯畭錛屽茍鐢ㄨ剼鎵嬫灦鍜屾灦瀛愬浐瀹氾紝閫愭瀹夎鍏朵綑鏌辯畭銆傝緝濂芥煴妯℃澘鍜岃醬綰夸綅緗瀭鐩村亸宸紝鎴潰瀵硅綰匡紝騫跺仛濂芥敮鎾戝姞鍥恒�?/span>c)姊佹ā瀹夎錛氬湪鏌卞瓙鐮間笂寮瑰嚭姊佺殑杞寸嚎鍙婃按騫崇嚎錛屽茍澶嶆牳銆?/span>瀹夎姊佹ā鏀拺鍓嶏紝棣栧眰鍦熷湴闈㈠簲騫蟲暣澶疄錛屽悓鏃跺簲閾鴻鏈ㄦ澘錛屾惌璁炬搴曞皬妯湪錛屾媺綰垮畨瑁呮搴曟ā錛屾帶鍒跺ソ姊佸簳瑕佹眰錛屽畬鍚庡浐瀹氭搴曪紝瀹夎姊佷晶妯★紝鎷夌嚎鎵懼鉤鍥哄畾銆?/span>d)瀹夎妤兼澘銆佹ā鏉胯剼鎵嬫灦鎸夌収妯℃澘璁捐瑕佹眰鎼瀹屾瘯鍚庯紝鏀惌妯℃澘涓嬬殑澶у皬榫欓錛屽ぇ榫欓闂磋窛涓?.7M錛屽皬榫欓闂磋窛鏍規(guī)嵁涓ゆ璺ㄥ害騫沖潎璁劇疆錛屽ぇ闂磋窛涓嶅ぇ浜?.6M錛岄摵璁劇鑳舵澘錛岀敤閽㈤拤灝嗘澘涓庨緳楠ㄩ拤濂斤紝璐村ソ瀵嗗皝鏉★紝灝嗘ā鍐呮潅鐗╂竻鐞嗗共鍑�銆?/span>
9銆佹ā鏉挎媶闄ゃ�佹柦宸ュ伐搴忋�佹柟娉曘�佸畨鍏ㄦ帾鏂斤細a)鎷嗘ā欏哄簭涓�鑸簲鍚庢敮鐨勫厛鎷嗐�佸厛鏀殑鍚庢媶銆傚厛鎷嗛櫎鐨勬ā鏉垮拰鏀煴涓嶅緱鎷嗛櫎銆?/span>b)褰撲笂灞傛ゼ鏉挎鍦ㄦ祰絳戠牸鏃訛紝涓嬪眰妤兼澘鍜屾敮鏌變笉寰楁媶闄ゃ�俢)鎷嗘ā榪囩▼涓紝濡傚彂鐜扮牸鏈夊獎鍝嶇粨鏋勩�佸畨鍏ㄣ�佽川閲忛棶棰樻椂錛屾殏鍋滄媶闄わ紝緇忚繃澶勭悊鍚庯紝鏂瑰彲緇х畫鎷嗘ā銆俤)寰呮鏉挎媶瀹屽悗鏂瑰彲鎷嗛櫎鏌辨ā銆俥)鎷嗛櫎騫抽潰妯℃澘鏃訛紝鍏堝皢涓棿欏舵煴鍙婇緳楠ㄦ媶闄わ紝鍚庢媶澶栬竟銆傛媶闄ゅ悗鐨勬ā鏉胯鏁撮綈鍫嗘斁錛屽皢鎷嗛櫎鐨勯拤瀛愭竻騫插噣錛屽緟鏀笂鏀皢妯¤繍鍑恒�?/span>
涓夈�佸畨鍏ㄦ帾鏂?
1銆佸伐浣滃墠媯�鏌ュ伐鍏鋒槸鍚︾墷鍥猴紝閿ゅ瓙絳?/span>宸ュ叿鐢ㄥ伐鍏瘋瑁呭ソ銆傚伐浣滄椂鎬濇兂瑕侀泦涓紝闃叉浠庣┖涓粦钀姐�?/span>
2銆?/span>闆ㄦ粦鏃跺仠姝綔涓?/span>錛屽凡鎷嗛櫎鏋勪歡鍙婃椂榪愯蛋鎴栧Ε鍠勫爢鏀撅紝浠ラ槻鎿嶄綔浜哄憳鍥犳壎絀鴻�屽爼钀姐�?/span>
3銆佹媶闄ゆ澘銆佹銆佹煴妯℃澘鏃訛紝搴?/span>鎼鑴氭墜鏋舵垨鎿嶄綔騫沖彴錛岃闃叉姢鏍忔潌銆?/span>
4銆佷弗紱佸湪鍚屼竴鍨傜洿闈笂浣滀笟銆?/span>
5銆?/span>鎷嗛櫎鏃墮�愬潡鎷嗗嵏錛屼笉寰楁垚鐗囨澗鍔ㄣ�佹挰钀姐�佹媺鍊掋�?/span>
6銆佹ゼ灞傛澘鐨勬媶妯★紝璁句復(fù)鏃舵敮鎾戯紝闃叉澶х墖鑴辮惤銆?/span>
7銆佹媶闄ゅ悗鐨勬ā鏉挎湁閽夊皷鏈濅笂錛?/span>鎷嗚惤鐨勯拤瀛愯鍙婃椂娓呯悊騫插噣錛屼弗闃查拤鎵庤剼銆?/span>
8銆佹瘡浜哄簲鏈夎凍澶熺殑宸ヤ綔闈紝鍚屾椂鎿嶄綔鏃惰鍚堢悊鍒嗗伐錛岀粺涓�緙栧彿鍜岃鍔ㄣ�?/span>
9銆?/span>鍏駭浠ヤ笂澶ч錛屼笉寰楀畨瑁呭拰鎷嗘ā錛岃繘鍏ユ柦宸ョ幇鍦哄繀欏繪埓濂藉畨鍏ㄥ附錛岄珮澶勪綔涓氱郴濂藉畨鍏ㄥ甫銆?/span>
10銆佹ā鏉跨殑鏂藉伐杞借嵎瑕佹眰錛歛)鍦ㄧ牸寮哄害絎﹀悎璁捐寮哄害絳夌駭鐨勮姹傚悗錛屾柟鍙壙鍙楀叏閮ㄤ嬌鐢ㄨ嵎杞斤紝浣嗘柦宸ヨ嵎杞芥墍浜х敓鐨勬晥搴旀瘮浣跨敤鑽瘋澆鐨勬晥搴旀洿涓轟笉鍒╂椂錛屽簲緇忚繃鏍哥畻錛屽姞璁句復(fù)鏃舵敮鎾戙�?/span>
b)鏂藉伐鑽瘋澆涓嶈瓚呰繃璁捐鑽瘋澆銆傜牸鐨勫爢縐拰鏂藉伐浜哄憳涓嶅簲榪囧垎闆嗕腑銆?/span>
11銆佹祰絳戝墠鐨勬ā鏉塊獙鏀惰姹傦細a)鏌ユā鏉垮畨鍏ㄦ槸鍚︾鍚堝伐紼嬬殑璁捐瑕佹眰銆俠)妯℃澘鐨勬敮鎾戠偣鍙婃敮鎾戠郴緇熸槸鍚︾ǔ瀹氬彲闈狅紝鏀拺闈㈡槸鍚﹀彂鐢熶笅娌変笌浜ゅ艦銆俢)鏄惁鐗㈠浐錛屾ā鏉挎帴緙濇槸鍚︿弗瀵嗭紝鎺ョ紳瀹藉害涓嶅簲澶т簬2.5MM銆?/span>d)妯℃澘涓庣牸鐨勬帴瑙﹂潰鏄惁娓呯悊騫插噣錛屾槸鍚﹂噰鍙栦簡闃叉綺樼粨鎺柦銆俥)棰勫煁浠躲�侀鐣欐礊鐨勮鏍箋�佹暟閲忋�佷綅緗拰鍥哄畾鎯呭喌鏄惁姝ｇ‘鍙潬銆?/span>
12銆佹媶闄ゅ墠鐨勯獙鏀惰姹傦細a)涓嶆壙閲嶇殑渚фā錛岀牸寮哄害杈懼埌25%鏃舵柟鍙媶闄わ紝瑕佷繚璇佹瀯浠朵笉鍙樺艦銆佹１瑙掑畬鏁?/span>銆?/span>b)璺ㄥ害涓ょ背浠ュ唴鎵塊噸鏉跨殑鐮煎己搴﹁揪鍒拌璁″己搴︾殑50%鏂瑰彲鎷嗛櫎銆俢)璺ㄥ害2鈥?綾崇殑姊併�佹澘杈懼埌璁捐寮哄害鐨?5%鏃舵媶闄ゃ�俤)鎮(zhèn)噦鏋勪歡璺ㄥ害灝忎簬絳変簬2綾籌紝杈懼埌璁捐寮哄害鐨?5%鍗沖彲鎷嗛櫎錛屽ぇ浜?綾籌紝瑕佽揪鍒?00%銆?/span>
鍥涖�佹ā鏉挎敮鎾戠郴緇熺殑楠岀畻
鑽瘋澆璁＄畻鈥斺�旀亽鑽鳳細
1錛夈�佹ā鏉夸互鍙婃敮鏋惰嚜閲嶏細300 N/m2錛?/span>
2錛夈�佹柊嫻囨販鍑濆湡鑷噸錛氬彇24000 N/m3錛?4000脳0.16錛堟澘鍘氾級 = 3840N/m2錛?/span>
3錛夈�侀挗絳嬭嚜閲嶏細鍙?100 N/m3錛?.16脳1100 = 176 N/m2錛?/span>
鎭掕嵎鏍囧噯鍊鹼細
q鎭?300+3840+176 = 4316 N/m2錛?/span>
媧昏嵎錛?/span>
鏂藉伐浜哄憳鍙婅澶囪嵎杞芥爣鍑嗗�鹼細2500 N/m2
鎸崳娣峰嚌鍦熸椂鑽瘋澆鏍囧噯鍊鹼細2000 N/m2錛?/span>
媧昏嵎鏍囧噯鍊鹼細q媧?2500+2000 = 4500 N/m2錛?/span>
鑽瘋澆璁捐鍊鹼細
q=1.2脳4316 + 1.4脳4500=5179+6300= 11479 N/m2錛?/span>
1銆侀獙綆楄兌鍚堟澘錛?/span>
鍙?/span>0.7綾充負璁＄畻鍗曞厓錛屾寜鐓т笁絳夎法榪炵畫姊佽綆楋細鏀駭闂磋窛涓哄皬鎰ｏ紙鏈ㄦ柟錛夐棿璺濓紝200 mm錛?/span>
M max = (k鎭抭鎭?k媧籷媧?L2錛?179脳0.7脳0.1+6300脳0.7脳0.117錛壝?.22=31.77 脳103 Nmm;
鈶犲己搴﹂獙綆楋細
W = bh2/ 6 = 700脳152/6 = 26250 mm3 ;
蟽= M/W =31.77脳103 Nmm梅26250 mm3= 1.21 N/mm2 錛?f = 11 N/mm2錛?/span>
寮哄害婊¤凍瑕佹眰錛?/span>
GB/T13123-2003銆婄緙栬兌鍚堟澘銆?
[f ]= 50N/mm2錛?/span>
鈶犲己搴﹂獙綆楋紙涓哄畨鍏ㄨ錛屾寜鐓?脳8鏈ㄦ柟鏍哥畻錛夛細
W = 50脳802 /6 = 53333.33 mm3 ;
蟽= M/W =143.3脳103 Nmm梅53333.33 mm3= 2.69 N/mm2 錛?f =11 N/mm2錛?/span>
寮哄害婊¤凍瑕佹眰錛?/span>
鈶″彉褰㈤獙綆楋細
v max =5 ql4/384EI=5脳2.340脳7004/384脳9000脳2.13脳106=0.651mm;
v max =0.651mm錛淸 v ]=700/250=2.8 mm錛?/span>
婊¤凍瑕佹眰銆?/span>
濡傛灉姝ゅ皬鎰ｆ寜涓夎法榪炵畫姊佸潎甯冭嵎杞借綆楋細
綰胯嵎杞戒負錛?/span>
q鎭?3974.4脳0.2=794.9 N/m
q媧?6300脳0.2=1260N/m
澶ф敮搴у集鐭╋細
M=錛?0.1脳794.9+0.117脳1260) 脳0.72=111.2Nm=1.112脳105Nmm
綆�鏀
M =1.433 脳105 Nmm;
3銆侀獙綆楀皬鎰ｄ笅6脳9鏈ㄦ柟錛?/span>
鎸夊潎甯冭嵎杞戒綔鐢ㄤ笅涓夎法榪炵畫姊佽綆楋細
瀹為檯鍙楀姏涓?/span>l=700涓夎法榪炵畫姊佹壙鍙楅棿璺?00鐨勬湪鏂逛紶閫掔殑闆嗕腑鑽瘋澆錛?/span>
綆�鍖栦負絳夊�兼弧璺ㄥ潎甯冭澆銆?/span>
MMAX = (k鎭抭鎭?k媧籷媧?L2錛?974脳0.7脳0.1+6300脳0.7脳0.117錛壝?.72= 389.1 脳103 Nmm
鈶犲己搴﹂獙綆楋細6脳9鏈ㄦ柟錛歐 = 4490 mm3 ; I=10.78脳104mm4;
E=2.06脳105
蟽= M/W =389.1脳103梅4490= 86.7 N/mm2 錛?f = 205 N/mm2錛?/span>
寮哄害婊¤凍瑕佹眰銆?/span>
鈶″彉褰㈤獙綆楋細
謂 max =kvql4/100EI
=(0.677脳3974+0.99脳6300) 脳0.7 脳10-3脳7004/100脳2.0脳105脳10.78脳104
=0.78mm;
鍙樺艦楠岀畻錛?/span>謂 max =0.78mm錛淸 f ]=700/250=2.8 mm錛?/span>
璁＄畻鐩存帴鏀拺灝忔劊鐨勭粨鏋勬瀯浠舵椂錛屽彇鍧囧竷鑽瘋澆1.5 KN/M2錛?/span>
4銆侀獙綆楃珛鏉嗭細
绔嬫潌鎵垮彈鑽瘋澆澶э細N=q=5846 N
绔嬫潌鑷噸鍙婃í鏉嗭紙鎸夌収瀹為檯鎯呭喌鍙栵紝榪欓噷鍙栬嚜閲嶇殑2.5鍊嶏級錛?/span>
绔嬫潌楂樺害鎸夌収3.0綾寵綆楋紱
3脳3.84脳9.8脳2.5 = 282.24N
N = 5846+1.2脳282.24 = 6184.688 N錛?/span>
绔嬫潌璁＄畻闀垮害鍙?/span>,鍙奓0 = ukh 杈冨ぇ鑰?/span>
L0 = h +2a = 1.5 + 2脳0.5 = 2.5 M = 2500 mm
L0 = ukh = 1.155脳1.5脳1.5 = 2.60 M =2600 mm
i =1.595 cm;
位= L梅i = 2500梅(1.595脳10 )= 157;
蠁 =0.284
蟽= N/ 蠁 A
= 6184.688梅(0.284脳4.24脳100)
=63.8 N/mm2 錛渇 = 205N/mm2錛?/span>
婊¤凍瑕佹眰銆?/span>
l0 = kuh (1)
l0 = (h+2a) (2)
涓轟嬌璁＄畻闀垮害婊¤凍浠ヤ笂浜屽紡錛屽亸瀹夊叏鑰冭檻錛?/span>l0 = ku (h+2a)
錛?/span>3錛?/span>
k 鈥斺�旇綆楅暱搴﹂檮鍔犵郴鏁幫紝鍙栧�間負1.155錛?/span>
u 鈥斺�旇綆楅暱搴︾郴鏁幫紝鍙傜収銆婃墸浠跺紡瑙勮寖銆嬭〃5.3.3錛泆 =1.500
a 鈥斺�旂珛鏉嗕笂绔幾鍑洪《灞傛í鏉嗕腑蹇冪嚎鑷蟲ā鏉挎敮鎾戠偣鐨勯暱搴︼紱
涓轟粈涔堣鍙?/span>a=0.5m錛?/span>
濡傛灉鍙?/span>a=1.05m,
L0 = h +2a = 1.5 + 2脳1.05 = 3.6 M = 3600 mm
i =1.595 cm;
位= L梅i = 3600梅(1.595脳10 )=225.7;
瑙勮寖5.1.9鏉★紝鍙楀帇銆佸彈鎷夋瀯浠剁殑瀹硅闀跨粏姣旓紙瀵逛簬鍙屾帓鏋訛級涓嶅緱瓚呰繃210銆?/span>
璁＄畻鏀灦绔嬫潌鍙婂叾浠栨敮鎾戠粨鏋勬瀯浠舵椂錛屽彇鍧囧竷鑽瘋澆1.0 KN/M2錛?/span>
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澶囨鍙鳳細閯侷CP澶?5004082鍙?2
鐑棬鍩庡競鎺ㄥ箍錛?/p>
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