4.1 姊�銆佹澘鐨勪竴鑸(g貌u)閫�

鍙楀綆妲�(g貌u)浠朵富瑕佹槸鎸囨鑸囨澘銆傝垏妲�(g貌u)浠惰桓绶氱浉鍨傜洿鐨勬埅闈㈢ū鐐烘鎴潰銆傛銆佹澘姝ｆ埅闈㈠彈褰庢壙杓夊姏瑕佹眰婊胯冻

M銆€≤ Mu (4-1)

寮忎腑 M ——姝ｆ埅闈㈢殑褰庣煩瑷�(sh猫)瑷堝€笺€傚湪鎵胯級鍔涜▓绠椾腑锛孧鏄凡鐭ョ殑;

Mu ——姝ｆ埅闈㈠彈褰庢壙杓夊姏鐨勮ō(sh猫)瑷堝€硷紝瀹冩槸鐢辨鎴潰涓婃潗鏂欐墍绔嬬敓鐨勬姉鍔�锛岄€欓噷鐨勪笅瑙掔⒓u鏄寚妤甸檺鍊�(Ultimatevalue)銆�

4.1.1 鎴潰褰㈢媭鍜屽昂瀵�

1.鎴潰褰㈢媭

姊�銆佹澘甯哥敤鐭╁舰銆乀褰�銆両瀛楀舰銆佹Ы褰�銆佺┖蹇冩澘鍜屽€扡褰㈡绛夊皪绋卞拰涓嶅皪绋辨埅闈�銆�

2. 姊�銆佹澘鐨勬埅闈㈠昂瀵�

(1) 姊佺殑楂樺害h

鏍规摎(j霉)楂樿法姣�(h/l)渚嗕及绠楁楂榟(yu菐n)锛氭姊� 1/20锝�1/25锛屼富姊� 1/12锝�1/15銆備竴鑸彇 h= 250銆�300銆�350銆�750銆�800銆�900銆�1000mm绛夊昂瀵�銆�800mm浠ヤ笅鐨勭礆宸偤5Omm锛屼互涓婄殑鐐簂00mm銆�

(2) 姊佺殑瀵害b

鏍规摎(j霉)楂樺姣�(h/b)渚嗕及绠楃煩褰㈡埅闈㈢殑瀵害鎴朤褰㈡埅闈㈢殑鑲嬪b: 鐭╁舰姊佺殑楂樺姣� 2.0锝�3.5; T 褰㈡鐨勯珮瀵瘮 2.5锝�4.0(姝よ檿b鐐烘鑲嬪)銆備竴鑸彇 b = 100銆�120銆�150銆�200銆�250鍜�300mm锛�300mm浠ヤ笅鐨勭礆宸偤50mm銆�

(3) 鐝�(xi脿n)婢嗘澘鐨勫搴︿竴鑸純澶�锛岃ō(sh猫)瑷堟檪鍙彇鍠綅瀵害(b=1000mm)閫�(j矛n)琛岃▓绠椼€�

(4) 鐝�(xi脿n)婢嗘澘鐨勫帤搴

鏍规摎(j霉)鏉跨殑璺ㄥ害L渚嗕及绠楁澘鐨勫帤搴锛氬柈璺ㄧ啊鏀澘 h ≥ L/35;澶氳法閫ｇ簩(x霉)鏉� h ≥ L/40;鎳歌噦鏉� h ≥ L/12銆傚彟澶栧皻鎳�(y墨ng)婊胯冻琛�4-1鐨勭従(xi脿n)婢嗛嫾绛嬫贩鍑濆湡鏉跨殑鏈€灏忓帤搴﹁姹傘€�

4.1.2 鏉愭枡閬告搰鑸囦竴鑸(g貌u)閫�

1. 娣峰嚌鍦熷挤搴︾瓑绱�

姊�銆佹澘甯哥敤鐨勬贩鍑濆湡寮峰害绛夌礆鏄疌20銆丆30銆丆40銆傛彁楂樻贩鍑濆湡寮峰害绛夌礆灏嶅澶у彈褰庢(g貌u)浠舵鎴潰鍙楀綆鎵胯級鍔涚殑浣滅敤涓嶉’钁�銆�

2. 閶肩瓔寮峰害绛夌礆鍙婂父鐢ㄧ洿寰�

(1) 姊佺殑閶肩瓔寮峰害绛夌礆鍜屽父鐢ㄧ洿寰�

1) 绺卞悜鍙楀姏閶肩瓔

姊佷腑绺卞悜鍙楀姏閶肩瓔瀹滈噰鐢℉RB400绱氭垨RRB400绱�(鈪㈢礆)鍜孒RB335绱�(鈪＄礆)锛屽父鐢ㄧ洿寰戠偤12mm, 14mm, 16mm, 18mm, 20mm, 22mm鍜�25mm銆傛牴鏁�(sh霉)鏈€濂戒笉灏戜簬3(鎴�4)鏍�銆傝ō(sh猫)瑷堜腑鑻ラ噰鐢ㄥ叐绋笉鍚岀洿寰戠殑閶肩瓔锛岄嫾绛嬬洿寰戠浉宸嚦灏�2mm,浠ヤ究浜庡湪鏂藉伐涓兘鐢ㄨ倝鐪艰瓨鍒�銆�

鐐轰簡渚夸簬婢嗘敞娣峰嚌鍦�锛屼互淇濊瓑閶肩瓔鍛ㄥ湇娣峰嚌鍦熺殑瀵嗗鎬�锛岀副绛嬬殑鍑堥枔璺濇噳(y墨ng)婊胯冻鍦�4-2鎵€绀虹殑瑕佹眰銆�

2) 鏋剁珛閶肩瓔

灏嶄簬鍠瓔鐭╁舰鎴潰姊侊紝鐣�(d膩ng)姊佺殑璺ㄥ害灏忎簬4m鏅�锛屾灦绔嬮嫾绛嬬殑鐩村緫涓嶅疁灏忎簬8mm;鐣�(d膩ng)姊佺殑璺ㄥ害绛変簬4锝�6m鏅�锛屼笉瀹滃皬浜巐0mm;鐣�(d膩ng)姊佺殑璺ㄥ害澶т簬6m鏅傦紝涓嶅疁灏忎簬12mm銆�

3) 姊佺殑绠嶇瓔

瀹滈噰鐢℉PB235绱�(鈪犵礆)銆丠RB335(鈪＄礆)鍜孒RB400绱�(鈪㈢礆)鐨勯嫾绛�锛屽父鐢ㄧ洿寰戞槸6mm銆�8mm鍜宭0mm銆�

(2) 鏉跨殑閶肩瓔寮峰害绛夌礆鍙婂父鐢ㄧ洿寰�

鏉垮収(n猫i)閶肩瓔涓€鑸湁绺卞悜鍙楁媺閶肩瓔鑸囧垎甯冮嫾绛嬪叐绋�銆�

1) 鏉跨殑鍙楀姏閶肩瓔

鏉跨殑绺卞悜鍙楁媺閶肩瓔甯哥敤HPB235绱�(鈪犵礆)銆丠RB335绱�(鈪＄礆)鍜孒RB400绱�(鈪㈢礆)閶肩瓔锛屽父鐢ㄧ洿寰戞槸6mm銆�8mm銆乴0mm鍜�12mm锛屽叾涓従(xi脿n)婢嗘澘鐨勬澘闈㈤嫾绛嬬洿寰戜笉瀹滃皬浜�8mm銆傚鍦�4-3鎵€绀�銆�

鐐轰簡渚夸簬婢嗘敞娣峰嚌鍦�锛屼互淇濊瓑閶肩瓔鍛ㄥ湇娣峰嚌鍦熺殑瀵嗗鎬э紝鏉垮収(n猫i)閶肩瓔闁撹窛涓嶅疁澶瘑锛岀偤浜嗘甯稿湴鍒嗘摂(d膩n)鍏�(n猫i)鍔�锛屼篃涓嶅疁閬庣█銆傞嫾绛嬬殑闁撹窛涓€鑸偤70锝�200 mm;鐣�(d膩ng)鏉垮帤h≤150mm锛屼笉瀹滃ぇ浜�200 mm;鐣�(d膩ng)鏉垮帤h>150mm锛屼笉瀹滃ぇ浜�1. 5h锛屼笖涓嶆噳(y墨ng)澶т簬250mm銆�

2)鏉跨殑鍒嗗竷閶肩瓔

鐣�(d膩ng)鎸夊柈鍚戞澘瑷�(sh猫)瑷堟檪锛岄櫎娌垮彈鍔涙柟鍚戝竷缃彈鎷夐嫾绛嬪锛岄倓鎳�(y墨ng)鍦ㄥ彈鎷夐嫾绛嬬殑鍏�(n猫i)鍋�(c猫)甯冪疆鑸囧叾鍨傜洿鐨勫垎甯冮嫾绛嬨€�

鍒嗗竷閶肩瓔瀹滈噰鐢℉PB235绱�(鈪犵礆)鍜孒RB335绱�(鈪＄礆)鐨勯嫾绛�锛屽父鐢ㄧ洿寰戞槸6mm鍜�8mm銆傚柈浣嶉暦搴︿笂鍒嗗竷閶肩瓔鐨勬埅闈㈤潰绌嶄笉鎳�(y墨ng)灏忎簬鍠綅瀵害涓婂彈鍔涢嫾绛嬫埅闈㈤潰绌嶇殑15%锛屼笖涓嶅疁灏忎簬瑭叉柟鍚戞澘鎴潰闈㈢⿳鐨�0.15%;鍒嗗竷閶肩瓔鐨勯枔璺濅笉瀹滃ぇ浜�250mm銆�

鏉夸腑鍒嗗竷绛嬬殑浣滅敤锛氣憼 鎶婅嵎杓夊垎甯冨埌鏉跨殑鍚勫彈鍔涢嫾绛嬩笂鍘�;鈶� 鎵挎摂(d膩n)娣峰嚌鍦熸敹绺強婧害璁婂寲鍦ㄥ瀭鐩翠簬鍙楀姏閶肩瓔鏂瑰悜鎵€鐢�(ch菐n)鐢熺殑鎷夋噳(y墨ng)鍔�;鈶� 鍥哄畾鍙楀姏閶肩瓔鐨勪綅缃�銆�

(3) 绺卞悜閶肩瓔鍦ㄦ銆佹澘鎴潰鍏�(n猫i)鐨勫竷缃姹�

1) 涓嬮儴閶肩瓔姘村钩鏂瑰悜鐨勫噲璺濅笉灏忎簬閶肩瓔鐩村緫d锛屼篃涓嶅皬浜�25mm;涓婇儴閶肩瓔鐨勫噲璺濆墖涓嶆噳(y墨ng)灏忎簬1.5d锛屼篃涓嶆噳(y墨ng)灏忎簬30mm銆�

2) 璞庡悜鍑堣窛涓嶅皬浜庨嫾绛嬬洿寰戜篃涓嶆噳(y墨ng)灏忎簬25mm銆�

3)姊佺殑绺卞悜鍙楀姏閶肩瓔鏈夋檪闋堟斁缃垚鍏╁堡锛岀敋鑷抽倓鏈夊浜庡叐灞ょ殑銆備笂銆佷笅閶肩瓔鎳�(y墨ng)灏嶉綂锛屼笉鑳介尟鍒�锛屼互鏂逛究娣峰嚌鍦熺殑婢嗘悧銆�

4)鐣�(d膩ng)姊佺殑涓嬮儴閶肩瓔澶氫簬鍏╁堡鏅傦紝寰炵涓夊堡璧�锛岄嫾绛嬬殑涓窛鎳�(y墨ng)姣斾笅闈㈠叐灞ょ殑涓窛澧炲ぇ涓€鍊�銆�

(4) 绺卞悜鍙楁媺閶肩瓔鐨勯厤绛嬬櫨鍒嗙巼

1) 鎴潰鐨勬湁鏁堥珮搴o

瑷�(sh猫)姝ｆ埅闈笂鎵€鏈夌副鍚戝彈鎷夐嫾绛嬬殑鍚堝姏榛炶嚦鎴潰鍙楁媺閭婄罚鐨勮睅鍚戣窛闆㈢偤as 锛宎s = c + d/2(c鐐烘贩鍑濆湡淇濊(h霉)灞ゅ帤搴�)銆傚墖鍚堝姏榛炶嚦鎴潰鍙楀鍗€(q奴)閭婄罚鐨勮睅鍚戣窛闆�

ho = h - as

h鏄埅闈㈤珮搴︼紝灏嶆鎴潰鍙楀綆鎵胯級鍔涜捣浣滅敤鐨勬槸h0锛岃€屼笉鏄痟锛屾墍浠ョūh0鐐烘埅闈㈢殑鏈夋晥楂樺害銆�

2) 绺卞悜鍙楁媺閶肩瓔鐨勯厤绛嬬櫨鍒嗙巼

ρ = As / bho(%) (4-2)

寮忎腑 As —— 绺卞悜鍙楁媺閶肩瓔鐨勭附鎴潰闈㈢⿳锛屽柈浣嶇偤mm2;

bho ——鎴潰鐨勬湁鏁堥潰绌�锛宐鏄埅闈㈠搴�銆�

3. 娣峰嚌鍦熶繚璀�(h霉)灞ゅ帤搴�

(1) 瀹氱京锛氱副鍚戝彈鍔涢嫾绛嬬殑澶栬〃闈㈠埌鎴潰閭婄罚鐨勫瀭鐩磋窛闆紝绋辩偤娣峰嚌鍦熶繚璀�(h霉)灞ゅ帤搴�锛岀敤c琛ㄧず銆�

(2)娣峰嚌鍦熶繚璀�(h霉)灞ゆ湁涓夊€嬩綔鐢細鈶� 淇濊(h霉)绺卞悜閶肩瓔涓嶈閵硅潟(闃查姽);鈶� 鍦ㄧ伀鐏�(z膩i)绛夋儏娉佷笅锛屼娇閶肩瓔鐨勬韩搴︿笂鍗囩珐鎱�(闃茬伀);鈶� 浣跨副鍚戦嫾绛嬭垏娣峰嚌鍦熸湁杓冨ソ鐨勭矘绲�(ji茅)(绮樼祼(ji茅)鍔�)銆�

(3) 娣峰嚌鍦熶繚璀�(h霉)灞ゆ渶灏忓帤搴�

姊�銆佹澘銆佹煴鐨勬贩鍑濆湡淇濊(h霉)灞ゅ帤搴﹁垏鐠�(hu谩n)澧冮鍒ュ拰娣峰嚌鍦熷挤搴︾瓑绱氭湁闂�(gu膩n)銆傛澶栵紝绺卞悜鍙楀姏閶肩瓔鐨勬贩鍑濆湡淇濊(h霉)灞ゆ渶灏忓帤搴﹀皻涓嶆噳(y墨ng)灏忎簬閶肩瓔鐨勫叕绋辩洿寰�銆�