鏅€氬伐瀛楅嫾銆佽紩鍨嬪伐瀛楅嫾宸茬稉(j墨ng)褰㈡垚锛屾櫘閫�10#宸ュ瓧閶肩浉鐣�(d膩ng)浜庝笂鐨処100(涔熸瘮濡�10#妲介嫾鐩哥暥(d膩ng)浜庢Ы閶糢100)(鍥犵偤鍚勫湅鍩�(zh铆)琛岀殑涓嶅悓锛岄€犳垚瀹冨€戠殑瑕�(gu墨)鏍兼湁绱板井鐨勫樊鍒�)
H鍨嬪伐瀛楅嫾浜﹀彨瀵考绶ｅ伐瀛楅嫾锛孒W HM HN 婧愪簬姝愭床,HEB鏄痉鍦嬬殑宸ュ瓧閶�锛屽叾涓璈W銆丠N宸ュ瓧閶煎凡寤ｆ硾鍦ㄦ垜鍦嬩娇鐢ㄥ拰鐢熺敘(ch菐n)銆侶EA HEB HEM 鍦ㄨū澶氬痉鍦嬭ō(sh猫)瑷堝湒涓婃渻鐪嬪埌锛屽湪鍦嬪収(n猫i)甯傚牬涓婇倓寰堥洠璩艰卜鍒�銆傚湪鍦嬪収(n猫i)閶肩祼(ji茅)妲�(g貌u)宸ョ▼涓紝濡傛灉閲忓皯鍓囧彲浠ヤ娇鐢ㄧ瓑瑕�(gu墨)鏍肩殑閶兼澘閫茶鐒婃帴鎷兼帴鑰屾垚銆傝€岄噺澶х殑瑭憋紝閫�?锛熺搐]浣垮(xu茅)鎬ц兘鑸囦箣鐩哥暥(d膩ng)?sh霉)鑵峎 銆丠N鍨嬮嫾浠ｆ浛銆�
HW 宸ュ瓧閶间富瑕佺敤浜庨嫾绛嬬牸妗嗘灦绲�(ji茅)妲�(g貌u)鏌变腑閶艰姱鏌�,涔熺ū鍕佹€ч嫾鏌�;鍦ㄩ嫾绲�(ji茅)妲�(g貌u)涓富瑕佺敤浜庢煴
HM 鍨嬮嫾楂樺害鍜岀考绶ｅ搴︽瘮渚嬪ぇ鑷寸偤1.33~~1.75 涓昏鍦ㄩ嫾绲�(ji茅)妲�(g貌u)涓敤鍋�閶兼鏋�鏌卞湪鎵垮彈鍕曞姏鑽疯級鐨勬鏋剁祼(ji茅)妲�(g貌u)涓敤鍋氭鏋舵;渚嬪:瑷�(sh猫)鍌欏钩鑷�
HN 鍨嬮嫾楂樺害鍜岀考绶ｅ搴︽瘮渚嬪ぇ浜庣瓑浜�2; 涓昏鐢ㄤ簬姊�
鏅€氬伐瀛楅嫾鐨勭敤閫旂浉鐣�(d膩ng)浜嶩N鍨嬮嫾;
鈼嗗伐瀛楀瀷閶间笉璜栨槸鏅€氬瀷閭勬槸杓曞瀷鐨勶紝鐢变簬鎴潰灏哄鍧囩浉灏嶈純楂�銆佽純绐�锛屾晠灏嶆埅闈㈠叐鍊嬩富杌哥殑鎱ｆ€х煩鐩稿樊杓冨ぇ锛屾晠鍍呰兘鐩存帴鐢ㄤ簬鍦ㄥ叾鑵规澘骞抽潰鍏�(n猫i)鍙楀綆鐨勬(g貌u)浠舵垨?q奴)鈶垫担M鎴愭牸妲�(g貌u)寮忓彈鍔涙(g貌u)浠�銆傚皪杌稿績鍙楀妲�(g貌u)浠舵垨鍦ㄥ瀭鐩翠簬鑵规澘骞抽潰閭勬湁褰庢洸鐨勬(g貌u)浠跺潎涓嶅疁閲囩敤锛岄€欏氨浣垮叾鍦ㄦ噳(y墨ng)鐢ㄨ寖鍦嶄笂鏈夎憲寰堝ぇ鐨勫眬闄愩€�
鈼咹鍨嬮嫾灞簬缍�(j墨ng)婵熻闈㈠瀷鏉�(鍏跺畠閭勬湁鍐峰綆钖勫鍨嬮嫾銆佸鍨嬮嫾鏉跨瓑)锛岀敱浜庢埅闈㈠舰鐙€鍚堢悊锛屽畠鍊戣兘浣块嫾鏉愭洿楂樺湴鐧�(f膩)鎻晥鑳斤紝鎵胯級鑳藉姏銆備笉鍚屼簬鏅€氬伐瀛楀瀷鐨勬槸h鍨嬮嫾鐨勭考绶ｉ€茶浜嗗姞瀵�锛屼笖鍏�(n猫i)銆佸琛ㄩ潰閫氬父鏄钩琛岀殑锛岄€欐ǎ鍙究浜庣敤搴﹁灪鏍撳拰鍏朵粬妲�(g貌u)浠堕€ｆ帴銆傚叾灏哄妲�(g貌u)鎴愮郴鍒楀悎鐞�锛屽瀷铏熼綂鍏紝渚夸簬瑷�(sh猫)瑷堥伕鐢�銆�
閬╃敤鑼冨湇
鏅€氬伐瀛楅嫾锛岃紩鍨嬪伐瀛楅嫾锛岀敱浜庢埅闈㈠昂瀵稿潎鐩稿皪杓冮珮銆佽純绐�锛屾晠灏嶆埅闈㈠叐鍊嬩富琚栫殑鎱ｆ€х煩鐩稿樊杓冨ぇ锛岄€欏氨浣垮叾鍦ㄦ噳(y墨ng)鐢ㄨ寖鍦嶄笂鏈夎憲寰堝ぇ鐨勫眬闄�銆傚伐瀛楅嫾鐨勪娇鐢ㄦ噳(y墨ng)渚濇摎(j霉)瑷�(sh猫)瑷堝湒绱欑殑瑕佹眰閫茶閬哥敤銆�
灏哄瑷�(sh猫)瑷�
H鍨嬮嫾灞簬缍�(j墨ng)婵熻闈㈠瀷閶兼潗(鍏跺畠閭勬湁鍐峰綆钖勫鍨嬮嫾銆佸鍨�閶兼澘绛�)锛岀敱浜庢埅闈㈠舰鐙€鍚堢悊锛屽畠鍊戣兘浣块嫾鏉愭洿楂樺湴鐧�(f膩)鎻晥鑳�锛屾壙瑁佽兘鍔�銆備笉鍚屼簬鏅€氬伐瀛楅嫾鐨勬槸H鍨嬮嫾鐨勭考绶ｉ€茶浜嗗姞瀵�锛岃€屼笖鍏�(n猫i)銆佸琛ㄩ潰閫氬父鏄钩琛岀殑锛岄€欐ǎ鍙究浜庣敤搴﹁灪鏍撳拰鍏朵粬妲�(g貌u)浠堕€ｆ帴銆傚叾灏哄妲�(g貌u)鎴愬悎鐞�锛屽瀷铏熼綂鍏�锛屼究浜庤ō(sh猫)瑷堥伕鐢�銆�
鍦ㄧ祼(ji茅)妲�(g貌u)瑷�(sh猫)瑷堜腑閬哥敤宸ュ瓧閶兼噳(y墨ng)渚濇摎(j霉)鍏跺姏瀛�(xu茅)鎬ц兘锛屽寲瀛�(xu茅)鎬ц兘锛屽彲鐒婃€ц兘锛岀祼(ji茅)妲�(g貌u)灏哄绛夐伕鎿囧悎鐞嗙殑宸ュ瓧閶奸€茶浣跨敤銆�
鐒婃帴宸ヨ棟
H鍨嬮嫾鐨勭考绶ｉ兘鏄瓑鍘氬害鐨�锛屾湁杌嬪埗鎴潰锛屼篃鏈夌敱3濉婃澘鐒婃帴绲勬垚鐨勭祫鍚堟埅闈�銆傛櫘閫氬伐瀛楅嫾閮芥槸杌嬪埗鎴潰锛岀敱浜庣敓鐢�(ch菐n)宸ヨ棟宸�锛岀考绶ｅ収(n猫i)閭婃湁1:10鍧″害銆侶鍨嬮嫾鐨勮粙鍒朵笉鍚屼簬鏅€氬伐瀛楅嫾鍍呯敤涓€濂楁按骞宠粙杓�锛岀敱浜庡叾缈肩罚杓冨涓旂劇鏂滃害(鎴栨枩搴﹀緢灏�)锛屾晠闋堝瑷�(sh猫)涓€绲勭珛寮忚粙杓ュ悓鏅傞€茶杓ヨ粙锛屽洜姝�锛屽叾杌嬪埗宸ヨ棟鍜岃ō(sh猫)鍌欓兘姣旀櫘閫氳粙姗熷京(f霉)闆�銆傚湅鍏�(n猫i)鍙敓鐢�(ch菐n)鐨勫ぇ杌嬪埗H鍨嬮嫾楂樺害鐐�800mm锛岃秴閬庝簡鍙兘鏄剨鎺ョ祫鍚堟埅闈�銆�
绐勭考绶鍨嬮嫾閬╃敤浜庢鎴栧褰庢(g貌u)浠�锛岃€屽缈肩罚h鍨嬮嫾鍜宧鍨嬮嫾妯佸墖閬╃敤浜庤桓蹇冨彈澹撴(g貌u)浠舵垨澹撳綆妲�(g貌u)浠�銆傛櫘閫氬伐瀛楅嫾銆佽紩鍨嬪伐瀛楅嫾鑸嘓W銆丠N鍨嬮嫾鐩告瘮锛岀瓑閲嶉噺鍓嶆彁涓�锛寃銆� ix銆� iy閮戒笉濡侶鍨嬮嫾
妯欒瑷橀寗
鏅€氬伐瀛楅嫾鍜岃紩鍨嬪伐瀛楅嫾鐨勭考绶ｇ敱鍚戦倞涓婇€愭几璁婅杽鐨勶紝鏈変竴瀹氱殑瑙掑害锛屾櫘閫氬伐瀛楅嫾鍜岃紩鍨嬪伐瀛楅嫾鐨勫瀷铏熸槸鐢ㄥ叾鑵伴珮鍘樼背鏁�(sh霉)鐨勪集?d膩ng)?sh霉)瀛椾締琛ㄧず锛岃吂鏉�銆佺考绶ｅ帤搴﹀拰缈肩罚瀵害涓嶅悓鍏惰(gu墨)鏍间互鑵伴珮( h)脳鑵垮(b)脳鑵板帤(d)鐨勬鏁�(sh霉)琛ㄧず锛屽"鏅伐160脳88脳6"锛屽嵆琛ㄧず鑵伴珮鐐�160姣背锛岃吙瀵偤88姣背锛岃叞鍘氱偤6姣背鐨勬櫘閫氬伐瀛楅嫾銆�/"杓曞伐160脳81脳5"锛屽嵆琛ㄧず鑵伴珮鐐�160姣背锛岃吙瀵偤81姣背锛岃叞鍘氱偤5姣背鐨勮紩鍨嬪伐瀛楅嫾銆傛櫘閫氬伐瀛楅嫾鐨勮(gu墨)鏍间篃鍙敤鍨嬭櫉琛ㄧず锛屽瀷铏熻〃绀鸿叞楂樼殑鍘樼背鏁�(sh霉)锛屽鏅伐16#銆傝叞楂樼浉鍚岀殑宸ュ瓧閶�锛屽鏈夊咕绋笉鍚岀殑鑵垮鍜岃叞鍘�锛岄渶鍦ㄥ瀷铏熷彸閭婂姞a b c 浜堜互鍗€(q奴)鍒�锛屽鏅伐32#a銆�32#b銆�32#c绛�銆�鐔辫粙鏅€氬伐瀛楅嫾鐨勮(gu墨)鏍肩偤10-63#銆傜稉(j墨ng)渚涢渶闆欐柟鍗�(xi茅)璀颁緵鎳�(y墨ng)鐨勭啽杌嬫櫘閫氬伐瀛楅嫾瑕�(gu墨)鏍肩偤12-55#銆�
瑷堢畻鍏紡
鎴潰瀵害 B
鑵规澘鍘氬害 Tw
缈肩罚鍘氬害 Tf
浜ゆ帴鍦撳姬鍗婂緫 Rw
RA=RB=P/2
Mc=Mmax=Pl/4
fc=fmax=Pl^3/48EI
胃A=胃B=Pl^2/16EI
绗﹁櫉鎰忕京鍙婂柈浣�
P -- 闆嗕腑杓夎嵎锛孨;
q -- 鍧囧竷杓夎嵎锛孨;
R -- 鏀骇鍙嶅姏锛屼綔鐢ㄦ柟鍚戝悜涓婅€呯偤姝ｏ紝N;
M -- 褰庣煩锛屼娇鎴潰涓婇儴鍙楀锛屼笅閮ㄥ彈鎷夎€呯偤姝�锛孨m;
Q -- 鍓姏锛屽皪閯拌繎鎴潰鎵€鐢�(ch菐n)鐢熺殑鍔涚煩娌块爢鏅傞嚌鏂瑰悜鑰呯偤姝�锛孨;
f -- 鎾撳害锛屽悜涓嬭畩浣嶈€呯偤姝�锛宮m;
胃 -- 杞�(zhu菐n)瑙掞紝闋嗘檪閲濇柟鍚戣€呯偤姝�锛屄�;
E -- 褰堟€фā閲忥紝Gpa;
I -- 鎴潰鐨勮桓鎱ｆ€х煩锛宮^4;
尉=x/l锛屛�=x'/l锛屛�=a/l锛屛�=b/l锛屛�=c/l
寰炲叐鏂归潰鑰冩叜:
锛屽緸姊佺殑鍓垏鎳�(y墨ng)鍔涜€冩叜
绗簩锛屽緸褰庢洸姝ｆ噳(y墨ng)鍔涜€冩叜銆�
寰炲瀷閶艰〃涓彲浠ユ煡鍒板畠鐨勫ぇ鍙敤鍓垏寮峰害T
Tmax=Q/Ib[BH^2/8-<(B-b)h^2>/8]
寮忎腑: Tmax鐐哄ぇ鍓垏寮峰害銆傛妸鍙敤鍓垏寮峰害T浠ｉ€插幓锛屽彲绠楀嚭姊佺殑澶ф壙鍙楄級鑽枫€�
Q鐐哄潎甯冭級鑽�
I鐐哄伐瀛楅嫾鐨勬埅闈㈡叄鐭╁彲鍦ㄥ瀷閶艰〃涓煡寰�(cm^4).
B鐐哄伐瀛楅嫾鎴潰鐨勫ぇ瀵害銆�
b鐐哄伐瀛楅嫾鎴潰鐨勫皬瀵害
h鐐哄伐瀛楅嫾灏忓搴︽埅闈㈢殑楂樺害銆�
H鐐哄伐瀛楅嫾澶у搴︽埅闈㈢殑楂樺害
姝ｆ噳(y墨ng)鍔涚殑瑷堢畻:
Ysigma=M/W
M=澶у綆鐭�=杓夎嵎涔樿窛闆�
W=鎶楀綆妯￠噺銆�
瑷�(sh猫)Ysigma=鍏佽ū鐨勫ぇ鎳�(y墨ng)鍔涳紝鍙緱鍑鸿級鑽风殑澶у€�銆�
鏅€氬伐瀛楅嫾瑕�(gu墨)鏍艰〃
W= 0.00785 脳[hd+2t ( b 鈥� d ) +0.615 ( R 2 鈥� r 2 ) ]
h= 楂�
b= 鑵块暦
d= 鑵板帤
t= 骞冲潎鑵垮帤
R= 鍏�(n猫i)寮у崐寰�
r= 绔姬鍗婂緫
姹� 250 mm 脳 118mm 脳 10mm 鐨勫伐瀛楅嫾姣� m 閲嶉噺銆傚緸閲戝爆鏉愭枡鎵嬪唺涓煡鍑鸿┎宸ュ瓧閶� t 鐐� 13 锛� R 鐐� 10 锛� r 鐐� 5 锛屽墖姣� m 閲嶉噺 = 0.00785 脳[250 脳10+2 脳13 脳 ( 118 鈥�10 ) +0.615 脳 ( 10 2 鈥�5 2 ) ]= 41.91kg
|
瑕�(gu墨)鏍� |
楂樺害 |
鑵垮 |
鑵板帤 |
鐞嗛噸 |
|
10# |
100 |
68 |
4.5 |
11.261 |
|
12# |
120 |
74 |
5 |
13.987 |
|
14# |
140 |
80 |
5.5 |
16.89 |
|
16# |
160 |
88 |
6 |
20.513 |
|
18# |
180 |
94 |
6.5 |
24.143 |
|
20#a |
200 |
100 |
7 |
27.929 |
|
20#b |
200 |
102 |
9 |
31.069 |
|
22#a |
220 |
110 |
7.5 |
33.07 |
|
22#b |
220 |
112 |
9.5 |
36.524 |
|
25#a |
250 |
116 |
8 |
38.105 |
|
25#b |
250 |
118 |
10 |
42.03 |
|
28#a |
280 |
122 |
8.5 |
43.492 |
|
28#b |
280 |
124 |
10.5 |
47.888 |
|
30#a |
300 |
126 |
9 |
48.084 |
|
30#b |
300 |
128 |
11 |
52.794 |
|
32#a |
320 |
130 |
9.5 |
52.717 |
|
32#b |
320 |
132 |
11.5 |
57.741 |
|
32#c |
320 |
134 |
13.5 |
62.765 |
|
36#a |
360 |
136 |
10 |
60.037 |
|
36#b |
360 |
138 |
12 |
65.689 |
|
36#c |
360 |
140 |
14 |
71.341 |
|
40#a |
400 |
142 |
10.5 |
67.598 |
|
40#b |
400 |
144 |
12.5 |
73.878 |
|
40#c |
400 |
146 |
14.5 |
80.158 |
|
45#a |
450 |
150 |
11.5 |
80.42 |
|
45#b |
450 |
152 |
13.5 |
87.485 |
|
45#c |
450 |
154 |
15.5 |
94.55 |
|
56#a |
560 |
166 |
12.5 |
106.316 |
|
56#b |
560 |
168 |
14.5 |
115.108 |
|
56#c |
560 |
170 |
16.5 |
123.9 |
|
63#a |
630 |
176 |
13 |
121.407 |
|
63#b |
630 |
178 |
15 |
131.298 |
|
63#c |
630 |
180 |
17 |
141.189 |
