鏅€氬伐瀛楅嫾銆佽紩鍨嬪伐瀛楅嫾宸茬稉褰㈡垚锛屾櫘閫�10#宸ュ瓧閶肩浉鐣朵簬涓婄殑I100(涔熸瘮濡�10#妲介嫾鐩哥暥浜庢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硷紝鍏朵腑HW銆丠N宸ュ瓧閶煎凡寤ｆ硾鍦ㄦ垜鍦嬩娇鐢ㄥ拰鐢熺敘銆侶EA HEB HEM 鍦ㄨū澶氬痉鍦嬭ō瑷堝湒涓婃渻鐪嬪埌锛屽湪鍦嬪収甯傚牬涓婇倓寰堥洠璩艰卜鍒�銆傚湪鍦嬪収閶肩祼妲嬪伐绋嬩腑锛屽鏋滈噺灏戝墖鍙互浣跨敤绛夎(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]浣垮鎬ц兘鑸囦箣鐩哥暥?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愭鏌变腑閶艰姱鏌�,涔熺ū鍕佹€ч嫾鏌�;鍦ㄩ嫾绲愭涓富瑕佺敤浜庢煴
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嫾绲愭涓敤鍋�閶兼鏋�鏌卞湪鎵垮彈鍕曞姏鑽疯級鐨勬鏋剁祼妲嬩腑鐢ㄥ仛妗嗘灦姊�;渚嬪:瑷倷骞宠嚭
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朵簬HN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�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у彈褰庣殑妲嬩欢鎴栧皣鍏剁祫鎴愭牸妲嬪紡鍙楀姏妲嬩欢銆傚皪杌稿績鍙楀妲嬩欢鎴栧湪鍨傜洿浜庤吂鏉垮钩闈㈤倓鏈夊綆鏇茬殑妲嬩欢鍧囦笉瀹滈噰鐢�锛岄€欏氨浣垮叾鍦ㄦ噳鐢ㄨ寖鍦嶄笂鏈夎憲寰堝ぇ鐨勫眬闄�銆�
鈼咹鍨嬮嫾灞簬缍撴繜瑁侀潰鍨嬫潗(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�銆佸琛ㄩ潰閫氬父鏄钩琛岀殑锛岄€欐ǎ鍙究浜庣敤搴﹁灪鏍撳拰鍏朵粬妲嬩欢閫ｆ帴銆傚叾灏哄妲嬫垚绯诲垪鍚堢悊锛屽瀷铏熼綂鍏�锛屼究浜庤ō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噳鐢ㄨ寖鍦嶄笂鏈夎憲寰堝ぇ鐨勫眬闄愩€傚伐瀛楅嫾鐨勪娇鐢ㄦ噳渚濇摎(j霉)瑷▓鍦栫礄鐨勮姹傞€茶閬哥敤銆�
灏哄瑷▓
H鍨嬮嫾灞簬缍撴繜瑁侀潰鍨嬮嫾鏉�(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�銆佸琛ㄩ潰閫氬父鏄钩琛岀殑锛岄€欐ǎ鍙究浜庣敤搴﹁灪鏍撳拰鍏朵粬妲嬩欢閫ｆ帴銆傚叾灏哄妲嬫垚鍚堢悊锛屽瀷铏熼綂鍏�锛屼究浜庤ō瑷堥伕鐢�銆�
鍦ㄧ祼妲嬭ō瑷堜腑閬哥敤宸ュ瓧閶兼噳渚濇摎(j霉)鍏跺姏瀛告€ц兘锛屽寲瀛告€ц兘锛屽彲鐒婃€ц兘锛岀祼妲嬪昂瀵哥瓑閬告搰鍚堢悊鐨勫伐瀛楅嫾閫茶浣跨敤銆�
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㈠伐钘濆樊锛岀考绶ｅ収閭婃湁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�)锛屾晠闋堝瑷竴绲勭珛寮忚粙杓ュ悓鏅傞€茶杓ヨ粙锛屽洜姝わ紝鍏惰粙鍒跺伐钘濆拰瑷倷閮芥瘮鏅€氳粙姗熷京闆�銆傚湅鍏у彲鐢熺敘鐨勫ぇ杌嬪埗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浠舵垨澹撳綆妲嬩欢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嬶紝w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�锛屾湁涓€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)鐨勪集鏁�(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氾紝闇€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绛夈€�鐔辫粙鏅€氬伐瀛楅嫾鐨勮(gu墨)鏍肩偤10-63#銆傜稉渚涢渶闆欐柟鍗�(xi茅)璀颁緵鎳夌殑鐔辫粙鏅€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�锛孨;
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㈢敓鐨勫姏鐭╂部闋嗘檪閲濇柟鍚戣€呯偤姝�锛孨;
f -- 鎾撳害锛屽悜涓嬭畩浣嶈€呯偤姝�锛宮m;
胃 -- 杞夎锛岄爢鏅傞嚌鏂瑰悜鑰呯偤姝�锛屄�;
E -- 褰堟€фā閲�锛孏pa;
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夊姏鑰冩叜
绗簩锛屽緸褰庢洸姝ｆ噳鍔涜€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�
瑷璝sigma=鍏佽ū鐨勫ぇ鎳夊姏锛屽彲寰楀嚭杓夎嵎鐨勫ぇ鍊�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у姬鍗婂緫
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 |
