寤虹瓚
绗簲绔?/p>
鍙楀集鏋勪欢姝ｆ埅闈㈡壙杞藉姏璁＄畻
銆婂缓绛戠粨鏋勩�嬬浜旂珷涔犻锛氬叡鐢ㄦ潯浠讹細涓�绫荤幆澧冧娇鐢紝缁撴瀯瀹夊叏绛夌骇涓轰簩绾с�?/p>
5-25
涓�閽㈢瓔娣峰嚌鍦熺煩褰㈡鎴潰灏哄
200m
m
脳
500mm
锛屽集鐭╄璁″�?/p>
M=120kN
路
M
銆?/p>
娣峰嚌鍦熷己搴︾瓑绾?/p>
C25
锛岃瘯璁＄畻鍏剁旱鍚戝彈鍔涢挗绛嬫埅闈㈤潰绉細鈶犲綋閫夌敤
HPB235
绾ч挗
绛嬫椂锛涒憽鏀圭敤
HRB400
绾ч挗绛嬫椂锛涙渶鍚庣敾鍑虹浉搴旈厤绛嬫埅闈㈠浘銆?/p>
瑙ｏ細渚濋鎰忔煡寰楀弬鏁帮細
纬
0
=1
锛?/p>
fc=11.9N/mm
2
锛?/p>
ft=1.27N/mm
2
锛?/p>
c=25mm
锛?/p>
鈼?
1
fy=210N/mm
2
锛?/p>
尉
b
=0.614
锛?/p>
a
s
=65mm
銆?/p>
h
0
=500-65=435mm
鍏堟寜鍗曠瓔鐭╁舰鎴潰璁＄畻锛?/p>
266
.
0
435
200
9
.
11
10
120
2
6
2
0
1
飥?/p>
飩?/p>
飩?/p>
飩?/p>
飥?/p>
飥?/p>
bh
f
M
c
s
飦?/p>
飦?/p>
614
.
0
32
.
0
266
.
0
2
1
1
2
1
1
飥?/p>
飥?/p>
飥?/p>
飩?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
b
s
飦?/p>
飦?/p>
飦?/p>
As=M/[fyh
0
锛?/p>
1-0.5
尉
锛?/p>
]=
1560.65
mm
2
锛?/p>
閫?/p>
5
酶
20
锛?/p>
As=1571mm
2
锛?/p>
飦?/p>
min
=0.45ftbh/fy=0.45
脳
1.27
脳
200
脳
500*210=
272mm
2
锛?/p>
0.02bh=0.002
脳
200
脳
500=200mm
2
,
鈼?
2
fy=360N/mm
2
锛?/p>
尉
b
=0.517
锛?/p>
a
s
=40mm
锛?/p>
h
0
=500-40=460mm
鍏堟寜鍗曠瓔鐭╁舰鎴潰璁＄畻锛?/p>
238
.
0
460
200
9
.
11
10
120
2
6
2
0
1
飥?/p>
飩?/p>
飩?/p>
飩?/p>
飥?/p>
飥?/p>
bh
f
M
c
s
飦?/p>
飦?/p>
517
.
0
28
.
0
238
.
0
2
1
1
2
1
1
飥?/p>
飥?/p>
飥?/p>
飩?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
b
s
飦?/p>
飦?/p>
飦?/p>
As=M/[fyh
0
锛?/p>
1-0.5
尉
锛?/p>
]=120
脳
10
6
/
[360
脳
460
脳锛?/p>
1-0.5
脳
0.28
锛?/p>
]=
842.61
mm
2
锛?/p>
閫?/p>
3
#
20
锛?/p>
As=941mm
2
锛屾垨
4#18
锛?/p>
As=1018mm
2
锛?/p>
飦?/p>
min
=272 mm
2
鈼?/p>
1
鈼?/p>
2
5-26
鏌愬ぇ妤间腑闂磋蛋寤婂崟璺ㄧ畝鏀澘锛岃绠楄法搴?/p>
2.18m
锛屾壙鍙楀潎甯冭嵎杞借璁″�?/p>
g
锛?/p>
q=6kN/m
2
锛堝寘鎷嚜閲嶏級
锛屾贩鍑濆湡寮哄害绛夌骇
C20
锛?/p>
HPB235
绾ч挗绛嬨�傝瘯纭畾鐜版祰鏉垮帤
搴?/p>
h
鍙婃墍闇�鍙楁媺閽㈢瓔鎴潰闈㈢Н锛?/p>
閫夐厤閽㈢瓔锛?/p>
骞剁敾閰嶇瓔鍥俱�?/p>
鍙?/p>
b=1000mm
锛?/p>
as=25mm
銆?/p>
瑙ｏ細渚濋鎰忔煡寰楀弬鏁帮細
纬
0
=1
锛?/p>
fc=9.6N/mm
2
锛?/p>
ft=1.10N/mm
2
锛?/p>
c=20mm
锛?/p>
鈼?
1
fy=210N/mm
2
锛?/p>
尉
b
=0.614
锛?/p>
鏉垮帤鈮?/p>
2180/35=62.3mm
锛屽彇
h=70mm
锛?/p>
h
0
=70-25=45mm
m
kN
q
g
M
飪?/p>
飥?/p>
飩?/p>
飩?/p>
飥?/p>
飥?/p>
飥?/p>
5643
.
3
18
.
2
6
8
1
)
(
8
1
2
2
0
飦?/p>
18
.
0
45
1000
6
.
9
10
56
.
3
2
6
2
0
1
飥?/p>
飩?/p>
飩?/p>
飩?/p>
飥?/p>
飥?/p>
bh
f
M
c
s
飦?/p>
飦?/p>
614
.
0
204
.
0
18
.
0
2
1
1
2
1
1
飥?/p>
飥?/p>
飥?/p>
飩?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
b
s
飦?/p>
飦?/p>
飦?/p>
2
0
1
66
.
419
210
204
.
0
45
1000
6
.
9
mm
f
bh
f
As
y
c
飥?/p>
飩?/p>
飩?/p>
飩?/p>
飥?/p>
飥?
飦?
飦?/p>
锛?/p>