2019浜岀礆娉ㄥ唺寤虹瓚甯€婂缓绛戠祼妲嬭垏瑷倷銆嬪京缈掔煡璀橀粸锛氭湪绲愭
涓€銆佹湪鏉愮殑鐗归粸鍜岄仼鐢ㄨ寖鍦�
鏈ㄧ祼妲�( timber structure )鏄寚浠ユ湪鏉愮偤涓诲埗浣滅殑绲愭銆�
鐢变簬鎴戝湅妯规湪鍒嗗竷寤f硾锛屾槗浜庡彇鏉�;鏈ㄦ潗閲囦紣鍜屽姞宸ユ柟渚�锛屽悓鏅傝唱杓曚笖寮�锛屾墍浠ユ湪鏉愬緢鏃╁氨琚敤渚嗗缓閫犳埧灞嬭垏姗嬫銆備絾鏄�锛岀敱浜庢湪鏉愬瓨鍦ㄨ憲鍚勫悜鐣版€с€佸ぉ鐒剁己闄�(鏈ㄧ瘈(ji茅)銆佹枩绱�銆侀珦蹇冦€佽绺瓑)銆佹槗鑵愩€佹槗铔€鍜屾槗瑁傜瓑缂洪粸锛屽皪鏈ㄧ祼妲嬬殑绲愭褰㈠紡銆佺瘈(ji茅)榛為€f帴锛屾柦宸ヨ唱閲忎互鍙婁娇鐢ㄦ湡缍閮芥湁姣旇純楂樼殑瑕佹眰锛屼互淇濊瓑鏈ㄧ祼妲嬫湁瓒冲鐨勫彲闈犳€у拰鑰愪箙鎬�銆�
鏈ㄧ祼妲嬬敓闀烽€熷害绶╂參锛岃€屾湪鏉愯硣婧愭湁闄�锛屽洜姝�锛屽缓閫犳湪绲愭闄や簡鍋氬埌淇濊瓑瀹夊叏鍜屼汉楂斿仴搴蜂互澶�锛岄倓瑕佸悎鐞嗗埄鐢ㄦ湪鏉�锛屽ぇ鍔涚櫦(f膩)灞曚汉宸ユ灄锛屾敼璁婇亷鍘诲皪鐢熸厠(t脿i)淇濊閲嶈涓嶅锛屾.鏋楄硣婧愮牬澹炲毚閲嶇殑鎯呮硜锛屼績閫叉垜鍦嬫湪绲愭鍋ュ悍鍦板彲鎸佺簩(x霉)鎬х櫦(f膩)灞�銆�
鎵块噸鏈ㄧ祼妲嬫噳鍦ㄦ甯告韩搴﹀拰婵曞害鐠�(hu谩n)澧冧腑闋呮埧灞嬬祼妲嬪拰妲嬬瓚鐗╀腑浣跨敤銆傚嚒铏曚簬涓嬪垪鐢熺敘(ch菐n)鍜屼娇鐢ㄦ浠剁殑鎯呮硜锛屼笉鎳夐噰鐢ㄦ湪绲愭锛�
( 1 )妤垫槗寮曡捣鐏伣鐨�;
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浜�銆佹湪鏉愮殑鍒嗛
鏈ㄧ祼妲嬬敤鐨勬湪鏉愬垎鐐洪嚌钁夋潗鍜岄棅钁夋潗銆備富瑕佹壙閲嶆浠跺疁閲囩敤閲濊憠鏉�锛岄噸瑕佺殑鏈ㄨ唱閫f帴浠舵噳閲囩敤绱板瘑銆佺洿绱�銆佺劇绡€(ji茅)鍜岀劇鍏朵粬缂洪櫡涓旇€愯厫铦曠殑纭唱闂婅憠鏉愩€�
鎵块噸鏈ㄧ祼妲嬬敤鐨勬湪鏉�锛屾寜鐓у叾鏉愯唱锛屽緸濂藉埌澹炲彲鍒嗙偤I銆両I銆両II绱�锛岃ō瑷堟檪鎳夋牴鎿�(j霉)鍙楀姏鐨勭ó椤為€茶閬哥敤锛氬彈鎷夋垨鎷夊綆妲嬩欢鏉愯唱绛夌礆閬哥敤 I 绱�;鍙楀綆鎴栧褰庢浠舵潗璩瓑绱氶伕鐢↖I 绱�;鍙楀妲嬩欢鍙婃瑕佸彈褰庢浠舵潗璩瓑绱氶伕鐢� III绱�銆傛壙閲嶇祼妲嬫湪鏉愭潗璩婧栧弮瑕嬨€� 鏈ㄧ祼妲嬭ō瑷堣(gu墨)鑼� 銆� ( GB50005-2003 )(鏈瘈(ji茅)浠ヤ笅绨$ū 銆� 瑕�(gu墨)鑼� 銆� )闄勯寗 A 銆�
鏈ㄧ祼妲嬬敤鏉愭寜浣跨敤鎴潰鐨勪笉鍚岋紝鍙垎鐐哄師鏈�銆侀嫺鏉愬拰鑶犲悎鏉愩€�
( 1 )鍘熸湪(log)鏄寚浼愬€掑苟闄ゅ幓妯圭毊銆佹ü鏋濆拰妯规ⅱ鐨勬ü骞�銆�
( 2 )閶告潗( sawn lumber )鏄寚鐢卞師鏈ㄩ嫺鍒惰€屾垚鐨勪换浣曞昂瀵哥殑鎴愬搧鏉愭垨鍗婃垚鍝佹潗銆傞嫺鏉愬張鍒嗘柟鏈�( square timber )銆佹澘鏉�( plank )鍜岃(gu墨)鏍兼潗( dimension lumber )銆傛柟鏈ㄦ槸鎸囩洿瑙掗嫺鍒囦笖瀵帤姣斿皬浜� 3 鐨勶紝鎴潰鐐虹煩褰㈡垨姝f柟褰㈢殑閶告潗銆傛澘鏉愭槸鎸囧搴︾偤鍘氬害 3 鍊嶆垨 3 鍊嶄互涓婄殑鐭╁舰閶告潗銆傝(gu墨)鏍兼潗鏄寚鎸夎紩鍨嬫湪绲愭瑷▓鐨勯渶瑕�锛屾湪鏉愭埅闈㈠搴﹀拰楂樺害鎸夎(gu墨)瀹氬昂瀵稿姞宸ョ殑瑕�(gu墨)鏍煎寲鏈ㄦ潗銆�
( 3 )鑶犲悎鏉�( glued lunber )鏄寚浠ユ湪鏉愮偤鍘熸枡閫氶亷鑶犲悎澹撳埗鑰屾垚鐨勬煴鍨嬫潗鍜屽悇绋澘鏉愮殑绺界ū銆�
涓夈€佹湪鏉愮殑鐗╃悊鎬ц兘
1 .鏈ㄦ潗鐨勫惈姘寸巼
鏈ㄦ潗鐨勫惈姘寸巼灏嶆湪鏉愬挤搴︽湁寰堝ぇ鐨勫奖闊�锛岄毃鍚按鐜囩殑澧炲姞鏈ㄦ潗寮峰害闄嶄綆銆傜暥鍚按鐜囬仈鍒扮簴缍=鍜岄粸鏅�锛屾湪鏉愮殑寮峰害涓嶅啀闄嶄綆銆傚惈姘寸巼灏嶅彈澹�銆佸彈褰庛€佸彈鍓強鎵垮寮峰害褰遍熆杓冨ぇ锛岃€屽皪鍙楁媺寮峰害褰遍熆杓冨皬銆�
鎸夌収鍚按鐜囧ぇ灏�锛屾湪鏉愬彲鍒嗙偤骞叉潗(鍚按鐜囧皬浜� 18 % )銆佸崐骞叉潗(鍚按鐜囩瓑浜� 18 %涓€ 25 % )鍜屾繒鏉�(鍚按鐜囧ぇ浜� 25 % )銆� 銆� 瑕�(gu墨)鑼� 銆� 瑕�(gu墨)瀹�锛屽湪鍒朵綔妲嬩欢鏅�锛屾湪鏉愮殑鍚按鐜囨噳绗﹀悎涓嬪垪瑕佹眰锛�
( 1 )鐝�(xi脿n)鍫村埗浣滅殑鍘熸湪鎴栨柟鏈ㄧ祼妲嬩笉鎳夊ぇ浜� 25 % ;
( 2 )鏉挎潗鍜岃(gu墨)鏍兼潗涓嶆噳澶т簬 20 % ;
( 3 )鍙楁媺妲嬩欢鐨勯€f帴鏉夸笉鎳夊ぇ浜� 18 % ;
( 4 )浣滅偤閫f帴浠朵笉鎳夊ぇ浜� 15 % ;
( 5 )灞ゆ澘鑶犲悎鏈ㄧ祼妲嬩笉鎳夊ぇ浜� 15 % 锛屽悓涓€妲嬩欢鍚勫堡鏈ㄦ澘闁撶殑鍚按鐜囧樊鍒ヤ笉鎳夊ぇ浜� 5 %銆�
2 .鏈ㄦ潗鐨勬繒鑴广€佸共瑁傝垏缈规洸
鐣舵湪鏉愮殑鍚按鐜囧湪绾栫董椋藉拰榛炰互涓嬭畩鍖栬€屽紩璧锋湪鏉愮殑婵曡劰鎴栧共瑁傛檪锛屽叾灏哄璁婂寲鐨勮(gu墨)寰嬫槸鐩镐技鐨勩€傜敱浜庡共绺渻寮曡捣闁嬭鍜岀抗鏇�锛屽皪浜庢湪绲愭鐨勫伐浣滃奖闊胯純澶э紝鍥犳鏈ㄧ祼妲嬬殑骞茬府鏇撮渶瑕佸紩璧烽噸瑕�銆�
鍘熸湪鎴栧付楂撳績鐨勬柟鏈ㄥ湪骞茬嚗閬庣▼涓枊瑁傜殑鍘熷洜涓昏鏈夊叐绋細
( 1 )鐠�(hu谩n)鍚戠殑鏀剁府鍙楀埌寰戝悜鐨勭磩鏉燂紝娌垮勾杓敘(ch菐n)鐢熺殑鐠�(hu谩n)鍚戞媺鎳夊姏;
( 2 )鏈ㄦ潗澶栧堡鐨勬按鍒嗚捀鐧�(f膩)閫熷害姣斿収灞ゅ揩锛屽叾鏀剁府璁婂舰鍙楀埌鍏у堡鐨勯樆绀欐檪锛屼害鐢�(ch菐n)鐢熺挵(hu谩n)鍚戞媺鎳夊姏銆備笂杩板叐绋師鍥犵敘(ch菐n)鐢熺殑鎷夋噳鍔涗箣鍜岋紝瓒呴亷浜嗘湪鏉愮殑鎶楁媺寮峰害鏅�锛屽嵆鐢卞鍚戝収鐧�(f膩)鐢熼枊瑁�銆傛湪鏉愮閮ㄦ按鍒嗚捀鐧�(f膩)杓冨揩锛屽父褰㈡垚鍤撮噸鐨勭瑁�锛屾噳瑷硶闋愰槻銆�
灏嶄簬鏉挎潗鑰岃█锛屽湪骞茬嚗閬庣▼涓�锛岀挵(hu谩n)鍚戝拰寰戝悜鍏╁€嬫柟鍚戠殑骞茬府鐜囦笉鍚�锛屼笉鏈冭嚧浣块枊瑁�锛岃嫢浠诲叾鑷敱璁婂舰锛屽墖鐧�(f膩)鐢熺抗鏇层€�
3 .鏈ㄦ潗鐨勭己闄�
澶╃劧鐢熼暦鐨勬湪鏉愪笉鍙伩鍏嶇殑鏈冨瓨鍦ㄤ竴浜涚己闄�銆傚皪鏈ㄦ潗褰遍熆鏈€澶х殑缂洪櫡鏄厫鏈藉拰锜茶泙锛岄€欐槸浠讳綍绛夌礆鐨勬湪鏉愰兘绲曞皪涓嶅厑瑷辩殑銆傚皪鏈ㄦ潗寮峰害鏈夊奖闊跨殑缂洪櫡閭勫寘鎷細鏈ㄧ瘈(ji茅)銆佹枩绱�銆佽绺拰楂撳績銆�
鍥�銆佹湪鏉愮殑鍔涘鎬ц兘
1 .鏈ㄦ潗鐨勫彈鎷夋€ц兘
鏈ㄦ潗闋嗙磱鎶楁媺寮峰害鏈€楂�锛岃€屾┇绱嬫姉鎷夊挤搴﹀緢浣庯紝鍍呯偤闋嗙磱鎶楁媺寮峰害鐨� 1 / 10~1 / 40 銆傛枩绱嬪彈鎷夊挤搴︿粙浜庨爢绱嬭垏姗磱鍏╄€呬箣闁擄紝鍥犺€屾噳鐩¢噺閬垮厤鏈ㄦ潗姗磱鍙楁媺銆傛湪鏉愬彈鎷夌牬澹炲墠鐨勮畩褰㈠緢灏�锛屾矑鏈夐’钁楃殑濉戞€ц畩褰紝灞簬鑴嗘€х牬澹�銆傛晠銆� 瑕�(gu墨)鑼� 銆� 灏嶆湪鏉愬彈鎷夐櫎浜嗛噰鐢ㄨ純浣庣殑寮峰害瑷▓鍊煎锛岄倓瑕佹眰浣跨敤I绱氭潗锛屽皪鏈潗鐨勭己闄风郸浜堝毚鏍奸檺鍒�銆�
2 .鏈ㄦ潗鐨勫彈澹撴€ц兘
鏈ㄦ潗鍙楀鏅�锛屾湁杓冨ソ鐨勫鎬ц畩褰�锛屽彲浠ヤ娇鎳夊姏闆嗕腑閫愭几瓒ㄤ簬绶╁拰锛屾墍浠ュ眬閮ㄥ墛寮卞皪鏈ㄦ潗鍙楀鐨勫奖闊挎瘮鍙楁媺鏅傚皬寰楀锛屾湪绡€(ji茅)銆佹枩绱嬪拰瑁傜斧绛夌己闄蜂篃杓冨彈鎷夋檪鐨勫奖闊跨珐鍜�銆傛湪鏉愬彈澹撴檪鐨勫伐浣滄€ц兘瑕佹瘮鍙楁媺鏅傚彲闈犲緱澶�锛屽洜姝ゅ皪鏈ㄦ潗鐨勯伕鎿囪純鍙楁媺鏅傜偤瀵�锛屽彲閲囩敤III绱氭潗銆�
鍏╁€嬫浠跺埄鐢ㄨ〃闈簰鐩告帴瑙稿偝閬炲鍔涘彨鎵垮銆傚湪鏈ㄧ祼妲嬬殑鎺ラ牠鍜岄€f帴涓父閬囧埌鎵垮鐨勬儏娉併€傛牴鎿�(j霉)鏈ㄦ潗鎵垮鐨勫鍔涜垏鏈ㄧ磱鎵€鎴愮殑瑙掑害涓嶅悓锛屽彲鍒嗙偤闋嗙磱鎵垮銆佹┇绱嬫壙澹撳拰鏂滅磱鎵垮(鍦� 7-1 )銆�
( 1 )闋嗙磱鎵垮銆�
鏈ㄦ潗鐨勯爢绱嬫壙澹撳挤搴︾暐浣庝簬闋嗙磱鍙楀鐨勫挤搴�锛屽師鍥犵偤锛�
1 )鎵垮闈笉鍙兘瀹屽叏骞虫暣锛岃嚧浣挎壙澹撳姏鍒嗗竷涓嶅潎鍕�;
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鏈ㄦ潗鍏ㄨ〃闈㈡┇绱嬫壙澹撴檪锛岃畩褰㈣純澶�锛屽姞鑽疯嚦涓€瀹氶檺搴︿互鍚�锛岀敱浜庢湪鏉愮窗鑳炲閫愭几鐮磋琚鎵�锛屾湪鏉愯澹撳锛屽叾璁婂舰閫愭几娓涘皬鐩磋嚦绾栫董鏉熷け鍘荤┅(w臎n)瀹氳€岀牬澹�銆傛┇绱嬪叏琛ㄩ潰鎵垮寮峰害鏈€浣庛€�
( 3 )鏂滅磱鎵垮銆�
鏂滅磱鎵垮鍗冲鍔涜垏鏈ㄧ磱鎴愪竴瀹氳搴︾殑灞€閮ㄦ壙澹�銆傛枩绱嬫壙澹撶殑寮峰害浠嬩簬闋嗙磱鎵垮鍜屾┇绱嬫壙澹撲箣闁擄紝鑸� a 鍊兼湁闂滅郴銆�
3 .鏈ㄦ潗鐨勫彈褰庢€ц兘
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4 .鏈ㄦ潗鐨勫彈鍓€ц兘
鏈ㄦ潗鐨勫彈鍓彲鍒嗙偤鎴磱鍙楀壀銆侀爢绱嬪彈鍓拰姗磱鍙楀壀锛屽鍦� 7-5 ( a )銆�( b )銆�( c )鎵€绀恒€傛埅绱嬪彈鍓槸鎸囧壀鍒囬潰鍨傜洿浜庢湪绱�锛屾湪鏉愬皪閫欑ó鍓垏鐨勬姷鎶楀姏鏄緢澶х殑锛屼竴鑸笉鏈冪櫦(f膩)鐢熼€欑ó鐮村銆傞爢绱嬪彈鍓彁鎸囦綔鍔涜垏琛撶磱骞宠銆傛┇绱嬪彈鍓槸鎸囦綔鐢ㄥ姏鑸囨湪绱嬪瀭鐩淬€傛┇绱嬪壀鍒囧挤搴︾磩鐐洪爢绱嬪壀鍒囧挤搴︾殑涓€鍗�锛岃€屾埅绱嬪壀鍒囧挤搴﹀墖鐐洪爢绱嬪壀鍒囧挤搴︾殑 8 鍊�銆傛湪绲愭涓€氬父澶氱敤闋嗙磱鍙楀壀鐮村锛屽爆浜庤剢鎬х牬澹�銆傛湪鏉愮己闄峰皪鍙楀壀宸ヤ綔褰遍熆寰堝ぇ锛岀壒鍒ユ槸鏈ㄦ潗鐨勮绺紝鐣惰绺垏鍓潰閲嶅悎鏅傛洿鍔犲嵄闅�锛屽父鏄湪绲愭閫f帴鐮村鐨勪富瑕佸師鍥犮€傜敱浜庢湪鏉愮殑楂撳績铏曟潗璩純鏄撻枊瑁�锛屾晠銆� 瑕�(gu墨)鑼� 銆� 瑕�(gu墨)瀹氬彈鍓潰鎳夎┎閬块枊楂撳績銆�
鏈ㄧ祼妲嬬殑閫f帴
鏈ㄧ祼妲嬬殑妲嬩欢閫f帴鏄湪绲愭鐨勯噸瑕佸収瀹逛箣涓€锛屽寘鎷€f帴褰㈠紡銆侀€f帴妲嬮€犲拰閫f帴瑷堢畻涓夐儴鍒嗗収瀹�銆傚父鐢ㄧ殑鏈ㄧ祼妲嬮€f帴褰㈠紡鍖呮嫭鍏╁ぇ椤烇細榻掗€f帴鍜岃灪鏍撻€f帴銆�
涓€銆侀綊閫f帴
1 .閫f帴褰㈠紡
榻掗€f帴鏄€氶亷妲嬩欢鑸囨浠朵箣闁撶洿鎺ユ姷鎵垮偝鍔�锛屾墍浠ラ綊閫f帴鍙噳鐢ㄥ湪鍙楀妲嬩欢鑸囧叾浠栨浠堕€f帴鐨勭祼榛炰笂銆傞綊閫f帴鏈夊柈榻掗€f帴鑸囬洐榻掗€f帴锛屽鍦� 7 涓€ 6 ( a )銆�( b )鎵€绀�銆�
2 .妲嬮€犺姹�
( 1 )榻掗€f帴鐨勬壙澹撻潰锛屾噳鑸囨墍閫f帴鐨勫妗胯桓绶氬瀭鐩�;
( 2 )鍠綊閫f帴鎳変娇澹撴】杌哥窔閫氶亷鎵垮闈腑蹇�;
( 3 )鏈ㄧ祹鏋舵敮搴х祼榛炵殑涓婂鸡杌哥窔鍜屾敮搴у弽鍔涚殑浣滅敤绶�锛岀暥閲囩敤鏂规湪鎴栨澘鏉愭檪锛屽疁鑸囦笅寮﹀噲鎴潰鐨勪腑蹇冪窔浜ゅ尟浜庝竴榛�;鐣堕噰鐢ㄥ師鏈ㄦ檪锛屽彲浜庝笅寮︽瘺鎴潰鐨勪腑蹇冪窔浜ゅ尟浜庝竴榛烇紝姝ゆ檪锛屽埢榻掕檿鐨勬埅闈㈠彲鎸夎桓蹇冨彈鎷夐绠�;
( 4 )榻掗€f帴鐨勯綊娣�锛屽皪浜庢柟鏈ㄤ笉鎳夊皬浜� 20mm 锛屽皪浜庡師鏈ㄤ笉鎳夊皬浜� 30mm ;
( 5 )绲庢灦鏀骇绲愰粸榻掓繁涓嶆噳澶т簬 h / 3 锛屼腑闁撶祼榛炵殑榻掓繁涓嶆噳澶т簬 h / 4 ( h 鐐烘部榻掓繁鏂瑰悜鐨勬浠舵埅闈㈤珮搴�) ;
( 6 )闆欓綊閫f帴涓�锛岀浜岄綊鐨勯綊娣� hc鎳夋瘮绗竴榻掔殑榻掓繁 hc1 鑷冲皯澶� 20mm 锛屽柈榻掑拰闆欓綊绗竴榻掔殑鍓潰闀峰害lv涓嶆噳灏忎簬 4 . 5 鍊嶉綊娣�;
( 7 )鐣堕噰鐢ㄦ繒鏉愬埗浣滄檪锛屾湪鏋愭灦鏀骇绡€(ji茅)榛為綊閫f帴鐨勫壀闈㈤暦搴︽噳姣旇▓绠楀€煎姞闀� 50mm ;
( 8 )鏋愭灦鏀骇绡€(ji茅)榛為噰鐢ㄩ綊閫f帴鏅�锛屽繀闋堣ō缃繚闅灪鏍�锛屽叾鏂瑰悜鑸囦笂寮﹁桓绶氬瀭鐩达紝浣嗕笉鑰冩叜淇濋毆铻烘爴鑸囬綊鐨勫叡鍚屼綔鐢�銆�
3 .鍠綊閫f帴瑷堢畻
( 1 )鎸夋湪鏉愭壙澹擄細
寮忎腑 fca 鈥� 鏈ㄦ潗鏂滅磱鎵垮寮峰害瑷▓鍊�锛� N / mm2锛屾寜銆� 瑕�(gu墨)鑼� 銆� 绗� 4 . 2 . 6 姊濈⒑瀹�;
N 鈥� 浣滅敤浜庨綊闈笂鐨勮桓鍚戝鍔涜ō瑷堝€�锛� N ;
Ac 鈥� 榻掔殑鎵垮闈㈤潰绌嶏紝mm2銆�
( 2 )鎸夋湪鏉愬彈鍓細
寮忎腑锛歠v 鈥� 鏈ㄦ潗闋嗙磱鎶楀壀寮峰害瑷▓鍊硷紝 N / mm2;
V 涓€浣滅敤浜庡壀闈笂鐨勫壀鍔涜ō瑷堝€�锛� N ;
lv 鈥� 鍓潰瑷堢畻闀峰害锛宮m锛屽叾鍙栧€间笉寰楀ぇ浜庨綊娣� hc鐨� 8 鍊�;
bv 鈥� 鍓潰瀵害锛宮m ;
Ψv鈥� 娌垮壀闈㈤暦搴﹀壀鎳夊姏鍒嗗竷涓嶅嫽鐨勫挤搴﹂檷浣庣郴鏁�(sh霉)锛屾寜銆� 瑕�(gu墨)鑼� 銆� 琛� 6 . 1 . 2
閲囩敤銆�
4 .闆欓綊閫f帴瑷堢畻
( 1 )闆欓綊閫f帴鐨勬壙澹�锛屼粛鎸夌収( 7-13 )瑷堢畻锛� Ac鍙栧叐鍊嬮綊鎵垮闈箣鍜�銆�
( 2 )闆欓綊閫f帴鐨勫彈鍓�锛屼粛鎸夌収( 7-14 )瑷堢畻锛屾鏅傚叏閮ㄥ壀鍔� V 鍧囩敱绗簩榻掗潰鎵垮彈锛屼笖 lv≤10hc銆�
( 3 )闆欓綊閫f帴娌垮壀闈㈤暦搴﹀壀鎳夊姏鍒嗗竷涓嶅嫽鐨勫挤搴﹂檷浣庣郴鏁�(sh霉)ψv鎸夈€� 瑕�(gu墨)鑼� 銆� 琛� 6 . 1 . 3 閲囩敤銆�
5 .淇濋毆铻烘爴瑷堢畻
鐣舵瀽鏋舵敮搴ч噰鐢ㄩ綊閫f帴鏅傦紝蹇呴爤瑷疆淇濋毆铻烘爴銆傚叾鎵垮彈涔嬫媺鍔� Nb 鐢变笂寮﹁桓鍔涜ō瑷堝€� N 鍜屼笂涓嬪鸡鐨勫ぞ瑙� a 鎸変笅寮忚▓绠楋細
寮忎腑 Nb鈥� 淇濋毆铻烘爴鎵€鎵垮彈鐨勮桓鍚戞媺鍔�锛� N ;
N 涓€涓婂鸡杌稿悜澹撳姏瑷▓鍊硷紝 N ;
a 鈥� 涓婂鸡鑸囦笅寮︾殑澶捐锛�°銆�
浜�銆佽灪鏍撻€f帴鍜岄嚇閫f帴
1 .閫f帴褰㈠紡
( 1 )铻烘爴閫f帴鍜岄嚇閫f帴鏈夊柈鍓€f帴鍜岄洐鍓€f帴鍏╃ó锛屽鍦� 7 涓€ 7 ( a )銆�( b )鎵€绀�;
( 2 )铻烘爴閫f帴鍜岄嚇閫f帴鎺掑垪鏈夊叐绺辫榻婂垪鍜岄尟鍒楀叐绋�锛屽鍦� 7-8 ( a )銆�( b )鎵€绀�銆�
2 .妲嬮€犺姹�
閫f帴鏈ㄧ祼妲嬬殑鏈€灏忓帤搴﹁(gu墨)瀹氭寜琛� 7-1 鍙栧€�;
3 .鍠綊閫f帴瑷堢畻
( 1 )鐣舵湪绲愭鏈€灏忓帤搴︾鍚堣〃 7-1 瑕�(gu墨)瀹氭檪锛岃灪鏍撻€f帴鎴栭嚇閫f帴闋嗙磱鍙楀姏鐨勬瘡涓€鍓潰鐨勯€f帴鎵胯級鍔涘€兼寜涓嬪紡纰哄畾锛�
寮忎腑 Nv 涓€铻烘爴鎴栭嚇閫f帴姣忎竴鍓潰鐨勬壙杓夊姏瑷▓鍊�锛� N ;
fc鈥� 鏈ㄦ潗闋嗙磱鎵垮寮峰害瑷▓鍊�锛� N / mm ;
d 鈥� 铻烘爴鎴栭嚇?sh霉)闂圭潌鍓�?mm ;
Kv 鈥� 铻烘爴鎴栭嚇閫f帴瑷▓鎵胯級鍔涜▓绠楃郴鏁�(sh霉)锛屾寜鐓с€� 瑕�(gu墨)鑼� 銆� 琛� 6 . 2 . 2 閲囩敤銆�
( 2 )鐣舵湪绲愭鏈€灏忓帤搴︿笉鑳芥豢瓒宠〃 7-1 瑕�(gu墨)瀹氭檪锛屽墖姣忎竴鍓潰鐨勬壙杓夊姏瑷▓鍊奸櫎浜哊v鎸夊紡( 7-16 )瑷堢畻澶�锛屼笖涓嶅緱澶т簬0.3cdΨ2αfc锛�Ψα鎸夌収銆� 瑕�(gu墨)鑼� 銆� 琛� 6 . 2 . 4 閲囩敤銆�
( 3 )鑻ヨ灪鏍撶殑鍌冲姏鏂瑰悜鑸囨浠舵湪绱嬫垚a瑙掑害鏅�锛屾寜寮�( 7-16 )瑷堢畻鐨勬瘡涓€鍓潰鐨勬壙杓夊姏瑷▓鍊兼噳涔樹互鏈ㄦ潗鏂滅磱鎵垮鐨勯檷浣庣郴鏁�(sh霉)Ψα锛�Ψα鎸夌収銆� 瑕�(gu墨)鑼� 銆� 琛� 6 . 2 . 4 閲囩敤銆傞嚇閫f帴鍙笉鑰冩叜鏂滅磱鎵垮鐨勫奖闊�銆�
4.褰遍熆鏈ㄦ潗寮峰害鐨勪富瑕佸洜绱�
(1)鍚按閲�
鏈ㄦ潗寮峰害鍙楀惈姘撮噺褰遍熆寰堝ぇ銆傜暥鏈ㄦ潗鍚按鐜囧湪绾栫董椋藉拰榛炰互涓嬫檪,闅ㄥ惈姘寸巼闄嶄綆,鏈ㄦ潗寮峰害鎻愰珮;鍙嶄箣,寮峰害闄嶄綆銆傜暥鏈ㄦ潗鍚按鐜囧湪绾栫董椋藉拰榛炰互涓婅畩鍖栨檪,寮峰害涓嶈畩銆傜偤渚夸簬姣旇純,鎴戝湅妯欐簴銆婃湪鏉愮墿鐞嗗姏瀛歌│椹楁柟娉曘€� (GB 1927~1943-91)瑕�(gu墨)瀹氭脯瀹氭湪鏉愬挤搴︿互鍚按鐜�12%鏅傜殑寮峰害娓畾鍊间綔鐐烘婧�,鍏朵粬鍚按鐜囦笅鐨勫挤搴﹀彲鎸変笅寮忔彌绠楁垚妯欐簴鍚按鐜囨檪鐨勫挤搴︺€�
σ12=σw[l鍗乤(ch菐n)(w-12)] (1-45)
寮忎腑σ12——鍚按鐜囩偤12%鏅傜殑鏈ㄦ潗寮峰害;
σw涓€涓€鍚按鐜囩偤w%鏅傜殑鏈ㄦ潗寮峰害;
w——瑭﹂鏅傛湪鏉愬惈姘寸巼;
α涓€涓€涓€鏈ㄦ潗鍚按鐜囨牎姝g郴鏁�(sh霉)銆�
α闅ㄤ綔鐢ㄥ姏鍜屾ü绋殑涓嶅悓鑰屼笉鍚�,濡傞爢绱嬫姉澹撴墍鏈夋ü绋潎鐐�0.05;闋嗙磱鎶楁媺鏅傞棅钁夋ü鐐�0.015,閲濊憠妯圭偤0;鎶楀綆鎵€鏈夋ü绋偤0. 04; 闋嗙磱鎶楀壀鎵€鏈夋ü绋偤0.03銆�
(2)璨犺嵎鏅傞枔
鏈ㄦ潗鍦ㄩ暦鏈熻嵎杓変綔鐢ㄤ笅涓嶈嚧寮曡捣鐮村鐨勬渶楂樺挤搴︾ū鐐烘寔涔呭挤搴︺€傛湪鏉愮殑鎸佷箙寮峰害鍍呯偤鐭湡妤甸檺寮峰害鐨�50%~60%銆傛湪绲愭閫氬父閮借檿浜庨暦鏈熻矤鑽风媭鎱�(t脿i),鍥犳,鍦ㄨō瑷堟檪鎳夎€冩叜璨犺嵎鏅傞枔鐨勫奖闊�銆�
(3)鐠�(hu谩n)澧冩韩搴�
鏈ㄦ潗鐨勫挤搴﹂毃鐠�(hu谩n)澧冩韩搴﹀崌楂樿€岄檷浣�銆傞暦鏈熻檿浜�50°C浠ヤ笂鐨勫缓绛戠墿涓嶅疁閲囩敤鏈ㄧ祼妲�銆�
(4)鐤电梾
鏈ㄦ潗鍦ㄧ敓闀�銆侀噰浼�銆佷繚瀛橀亷绋嬩腑,鎵€鐢�(ch菐n)鐢熺殑鍏ч儴鍜屽閮ㄧ殑缂洪櫡,绲�(t菕ng)绋辩偤鐤电梾銆傛湪鏉愮殑鐤电梾涓昏鏈夋湪绡€(ji茅)銆佹枩绱�銆佽绱�銆佽厫鏈藉拰锜插绛夈€備竴鑸湪鏉愭垨澶氭垨灏戦兘瀛樺湪涓€浜涚柕鐥�,鑷翠娇鏈ㄦ潗鐨勭墿鐞嗗姏瀛告€ц兘鍙楀埌褰遍熆銆�
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