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�?y脿n)妤﹂矈?gu贸)鍩�(zh铆)琛岀殑涓嶅悓锛岄€犳垚瀹冨€戠殑瑕�(gu墨)鏍兼湁绱�(x矛)寰殑宸垾)
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�(gu贸)鐨勫伐瀛楅嫾锛屽叾涓璈W銆丠N宸ュ瓧閶煎凡寤ｆ硾鍦ㄦ垜鍦�(gu贸)浣跨敤鍜岀敓鐢�(ch菐n)銆侶EA HEB HEM 鍦ㄨū澶氬痉鍦�(gu贸)瑷�(sh猫)瑷�(j矛)鍦栦笂鏈�(hu矛)鐪嬪埌锛屽湪鍦�(gu贸)鍏�(n猫i)甯傚牬(ch菐ng)涓婇倓寰堥洠璩�(g貌u)璨�(m菐i)鍒�銆傚湪鍦�(gu贸)鍏�(n猫i)閶肩祼(ji茅)妲�(g貌u)宸ョ▼涓�锛屽鏋滈噺灏戝墖鍙互浣跨敤绛夎(gu墨)鏍肩殑閶兼澘閫�(j矛n)琛岀剨鎺ユ嫾鎺ヨ€屾垚銆傝€岄噺澶х殑瑭�(hu脿)锛岄€�?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(ch膿ng)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�(d貌ng)鍔涜嵎杓夌殑妗嗘灦绲�(ji茅)妲�(g貌u)涓敤鍋氭鏋舵;渚嬪:瑷�(sh猫)鍌欏钩鑷�(t谩i)
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�锛岀敱浜庢埅闈㈠昂瀵稿潎鐩稿皪(du矛)杓冮珮銆佽純绐�锛屾晠灏�(du矛)鎴潰鍏╁€�(g猫)涓昏桓鐨勬叄鎬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)浠躲€傚皪(du矛)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�銆�
鈼咹鍨嬮嫾灞簬缍�(j墨ng)婵�(j矛)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�锛屾壙杓夎兘鍔涖€備笉鍚屼簬鏅€氬伐瀛楀瀷鐨勬槸h鍨嬮嫾鐨勭考绶ｉ€�(j矛n)琛屼簡鍔犲锛屼笖鍏�(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�(h脿o)榻婂叏锛屼究浜庤ō(sh猫)瑷�(j矛)閬哥敤銆�
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(du矛)杓冮珮銆佽純绐�锛屾晠灏�(du矛)鎴潰鍏╁€�(g猫)涓昏鐨勬叄鎬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�(j矛)鍦栫礄鐨勮姹傞€�(j矛n)琛岄伕鐢�銆�
灏哄瑷�(sh猫)瑷�(j矛)
H鍨嬮嫾灞簬缍�(j墨ng)婵�(j矛)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)鎻晥鑳斤紝鎵胯鑳藉姏銆備笉鍚屼簬鏅€氬伐瀛楅嫾鐨勬槸H鍨嬮嫾鐨勭考绶ｉ€�(j矛n)琛屼簡鍔犲锛岃€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�(h脿o)榻婂叏锛屼究浜庤ō(sh猫)瑷�(j矛)閬哥敤銆�
鍦ㄧ祼(ji茅)妲�(g貌u)瑷�(sh猫)瑷�(j矛)涓伕鐢ㄥ伐瀛楅嫾鎳�(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€�(j矛n)琛屼娇鐢�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€€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(w煤)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�(sh铆)閫�(j矛n)琛岃讥杌嬶紝鍥犳锛屽叾杌嬪埗宸ヨ棟鍜岃ō(sh猫)鍌欓兘姣旀櫘閫氳粙姗�(j墨)寰�(f霉)闆�銆傚湅(gu贸)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�(gu貌)浜嗗彧鑳芥槸鐒婃帴绲勫悎鎴潰銆�
绐勭考绶鍨嬮嫾閬╃敤浜庢鎴栧褰庢(g貌u)浠讹紝鑰屽缈肩罚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�(bi膩o)瑷樿閷�
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�(h脿o)鏄敤鍏惰叞楂樺帢绫虫暩(sh霉)鐨勪集?d膩ng)?sh霉)瀛椾締(l谩i)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(h脿o)琛ㄧず锛屽瀷铏�(h脿o)琛ㄧず鑵伴珮鐨勫帢绫虫暩(sh霉)锛屽鏅伐16#銆傝叞楂樼浉鍚岀殑宸ュ瓧閶硷紝濡傛湁骞剧ó涓嶅悓鐨勮吙瀵拰鑵板帤锛岄渶鍦ㄥ瀷铏�(h脿o)鍙抽倞鍔燼 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�(j矛)绠楀叕寮�
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(h脿o)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ｏ紝Nm;
Q -- 鍓姏锛屽皪(du矛)閯拌繎鎴潰鎵€鐢�(ch菐n)鐢熺殑鍔涚煩娌块爢鏅�(sh铆)閲�?l猫)杈冭洏閭芥獛?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�锛岄爢鏅�(sh铆)閲�?l猫)杈冭洏閭芥獛?锛�?
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�(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�(qi谩ng)搴�T
Tmax=Q/Ib[BH^2/8-<(B-b)h^2>/8]
寮忎腑: Tmax鐐哄ぇ鍓垏寮�(qi谩ng)搴�銆傛妸鍙敤鍓垏寮�(qi谩ng)搴浠ｉ€�(j矛n)鍘伙紝鍙畻鍑烘鐨勫ぇ鎵垮彈杓夎嵎銆�
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�(j矛)绠�:
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(zh菐ng)
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(c猫)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 |
