3-1
鏌愬洓灞傚洓璺ㄧ幇娴囨鏋剁粨鏋勭殑绗簩灞傚唴鏌辫酱鍚戝帇鍔涜璁″�?/p>
N=140
脳
104N,
妤煎眰楂?/p>
H
锛?/p>
5.4m,
璁＄畻闀垮害
L0=1.25H,
娣锋偿鍦熷己搴︾瓑绾т负
C20
锛?/p>
HRB400
绾ч挗绛嬨�傝瘯姹傛煴鎴潰灏哄鍙婄旱绛嬮潰绉�?/p>
銆庤В銆忔煡琛ㄥ緱锛?
1
飦?/p>
=1.0
,
c
f
=9.6N/
2
mm
,
y
f
飩?/p>
=360N/
2
mm
0
l
=1.25
飩?/p>
5.4
锛?/p>
6.75m
鎸夋瀯閫犺姹傚彇鏋勪欢闀跨粏姣旓細
:
15
l
b
飥?/p>
鍗?/p>
b=
l
0
=6.75
飩?/p>
10
3
/15=450mm
璁捐鏌辨埅闈负鏂瑰舰锛屽垯
b
飩?/p>
h=450mm
飩?/p>
450mm
鏌ヨ〃
3-1
寰楋細
飦?/p>
=0.895
S
A
飩?/p>
=(N-0.9
飦?/p>
c
f
A
锛?/p>
/0.9
飦?/p>
y
f
飩?/p>
=
4
140
10
0.9
0.895
9.6
450
450
0.9
0.895
360
飩?/p>
飥?/p>
飩?/p>
飩?/p>
飩?/p>
飩?/p>
飩?/p>
飩?/p>
mm<0.1943
鎸夌収鏋勯�犻厤绛嬪彇
0
0
min
0.6
飦?/p>
飥?/p>
锛?/p>
0
0
0
0
0.6
3
飩?/p>
飦?/p>
飩?/p>
锛?/p>
飦?/p>
S
A
飩?
锛?/p>
0
0
0.6
bh
=
0
0
0.6
450
450
1215
飩?/p>
飩?/p>
飥?/p>
2
mm
閫夐厤閽㈢瓔锛屾煡闄勮〃
11-1
寰楋紝
4
20
锛?/p>
S
A
飩?
锛?/p>
1256
2
mm
锛?/p>
绠嶇瓔鎸夋瀯閫犺姹傞�夊彇锛屽彇
s=250mm
锛?/p>
d=6mm
3-2
鐢变簬寤虹瓚涓婁娇鐢ㄨ姹傦紝鏌愮幇娴囨煴鎴潰灏哄涓?/p>
250mm
脳
250mm
锛屾煴楂?/p>
4.0m
锛岃绠楅珮搴?/p>
L0=0.7H=2.8m,
閰嶇瓔涓?/p>
4
16
锛?/p>
As/=804mm2
锛?/p>
銆?/p>
C30
娣锋偿鍦燂紝
HRB400
绾ч挗绛嬶紝鎵垮彈杞村悜鍔涜璁″�?/p>
N=950KN
銆傝瘯闂煴鎴潰
鏄惁瀹夊叏锛?/p>
銆庤В銆忔煡琛ㄥ緱锛?
1
飦?/p>
=1.0
,
c
f
=14.3N/
2
mm
,
y
f
飩?/p>
=360N/
2
mm
璁＄畻闀垮害
0
l
=0.7H
锛?/p>
2.8m
/
2.8/
0.25
11.2
l
b
飥?/p>
飥?/p>
鏌ヨ〃
3-1
寰楋細
飦?/p>
=0.962
鑰冭檻杞村績鍙楀帇
飦?/p>
R
锛?/p>
0.9
飦?/p>
锛?/p>
y
f
飩?/p>
S
c
S
A
f
A
飩?/p>
飥?/p>
锛?/p>
=
0.9
0.926
(360
804
14.3
0.8
250
250)
831.7
950
KN
N
KN
飩?/p>
飩?/p>
飩?/p>
飥?/p>
飩?/p>
飩?/p>
飩?/p>
飥?/p>
飥?/p>
飦?/p>
璇ユ煴鎴潰鍦ㄦ壙鍙楄酱蹇冨彈鍘嬫椂鏄笉瀹夊叏鐨勩�?/p>
3-3
宸茬煡涓�妗ヤ笅铻烘棆绠嶇瓔鏌憋紝
鐩村緞涓?/p>
d=500mm
锛?/p>
鏌遍珮
5.0m,
璁＄畻楂樺害
L0=0.7H=3.5m,
閰?/p>
HRB400
閽㈢瓔
10
16
锛?/p>
As/=2010mm2
锛?/p>
锛?/p>
C30
娣锋偿鍦燂紝铻烘棆绠嶇瓔閲囩敤
R235
锛岀洿寰勪负
12mm
锛岃灪璺濅负
s=50mm
銆傝瘯纭畾姝ゆ煴鐨勬壙
杞藉姏銆?/p>
銆庤В銆忔煡琛ㄥ緱锛?
1
飦?/p>
=1.0
,
c
f
=14.3N/
2
mm
,
y
f
飩?/p>
=360N/
2
mm
y
f
=210N/
2
mm
0
/
7
12
l
d
飥?/p>
飥?/p>
2
2
196250
4
cor
d
A
mm
飦?/p>
飥?/p>
飥?/p>
2
2
113.04
4
ssl
d
A
mm
飦?/p>
飥?/p>
飥?/p>
2
3.14
500
113.04
/
50
3549.456
SSL
sso
dA
A
mm
S
飦?/p>
飥?
飥?/p>
飩?/p>
飩?/p>
飥?/p>
飦?/p>
鏌辩殑鎵胯浇鍔?/p>
N=
0.9(
2
)
c
cor
y
s
y
sso
f
A
f
A
f
A
a
飩?/p>
飩?/p>
飥?/p>
飥?/p>
3
0.9
(14.3
196250
360
2010
2
210
3549.456)
3.395
10
KN
飥?/p>
飩?/p>
飩?/p>
飥?/p>
飩?/p>
飥?/p>
飩?/p>
飩?/p>
飥?/p>
飩?/p>
<1.
5
脳
0.9
锛?/p>
y
f
飩?/p>
S
c
S
A
f
A
飩?/p>
飥?/p>
锛?/p>
4
锛?/p>
1
銆?/p>
涓�閽㈢瓔娣锋偿鍦熺煩褰㈡埅闈㈡鎴潰灏哄
b
脳
h= 250mm
脳
500mm
锛?/p>
娣锋偿鍦熷己搴︾瓑绾?/p>
C25
锛?/p>
HRB335
绾ч挗
绛嬶紝寮煩璁捐鍊?/p>
M=125KN
路
m
锛岃瘯璁＄畻鍙楁媺閽㈢瓔鎴潰闈㈢Н锛屽苟缁樺埗閰嶇瓔鍥俱�?/p>
銆庤В銆?/p>
锛?/p>
1
锛夊厛鍋囧畾鍙楀姏閽㈢瓔鎸変竴鎺掑竷缃紝
a
s
=35mm
0
h
=h
鈥?/p>
a
s
=500
鈥?/p>
35=465mm
鏌ラ檮琛?/p>
1
鈥?/p>
2
銆?/p>
2
鈥?/p>
3
銆佽〃
4
鈥?/p>
2
銆?/p>
4
鈥?/p>
4
寰楋細
1
飦?/p>
=1.0
,
c
f
=11.9 N/
2
mm
,
y
f
=300N/
2
mm
,
b
飦?/p>
=0.550