妗ユ宸ョ▼澶т綔涓?/p>
1
娣峰嚌鍦熺畝鏀妗ュ唴鍔涜绠?/p>
浜ら�?/p>
1001
缁垮闀?/p>
涓�锛庢ˉ闈㈠唴鍔涜绠?/p>
A.
鎸?/p>
T
姊佺考鏉挎墍鏋勬垚閾版帴鎮噦鏉跨殑璁捐璁＄畻
锛堜竴锛夋亽杞藉強鍏跺唴鍔涳紙浠ョ旱鍚?/p>
1m
瀹界殑鏉挎潯杩涜璁＄畻锛?/p>
1.
姣忕背鏉夸笂鐨勬亽杞?/p>
g
锛?/p>
娌ラ潚娣峰嚌鍦熼潰灞?/p>
g
1
锛?/p>
0.05脳
1.0脳
23=1.15kN/m
C55
娣峰嚌鍦熷灚灞?/p>
g
2
锛?/p>
0.08脳
1.0脳
24=1.92kN/m
T
姊佺考鏉胯嚜閲?/p>
g
3
锛?/p>
(0.15+0.05脳
500/1150)脳
1.0脳
25=4.29 kN/m
浜鸿閬撳強鏍忔潌鑷噸
g
1p
锛?/p>
3.5kN/m
鍚堣锛?/p>
g=
鈭?/p>
g
i
= 10.86kN/m
2.
姣忕背瀹芥澘鏉＄殑鎭掕浇鍐呭姏
寮煩
m
kN
18
7
975
0
86
10
2
1
2
1
2
2
0
Ag
飪?/p>
飥?/p>
飥?/p>
飩?/p>
飩?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
.
.
.
gl
M
鍓姏
Q
Ag
=
g
路
l
0
=10.86脳
0.975=12.49kN
锛堜簩锛夎溅杈嗚嵎杞戒骇鐢熺殑鍐呭姏
灏嗗悗杞綔鐢ㄤ簬閾扮紳杞寸嚎涓婏紝鍚庤酱浣滅敤鍔涗负
P=
140kN
锛岃疆鍘嬪垎甯冨搴﹀鍥炬墍绀恒�?/p>
瀵逛簬杞﹁疆鑽疯浇涓悗杞殑鐫�鍦伴暱搴︿负
a
2
=0.20m
锛屽搴︿负
b
2
=0.60m[
鐢便�婂叕璺ˉ娑佃
璁￠�氱敤瑙勮寖銆?/p>
锛?/p>
JTG D60
锛?/p>
2004
锛夋煡寰?/p>
]
锛屽垯寰楋細
a
1
=
a
2
+2
H
=0.02+2脳
0.13=0.46m
b
1
=
b
2
+2
H
=0.06+2脳
0.13=0.86m
鑽疯浇瀵逛簬鎮噦鏍归儴鐨勬湁鏁堝垎甯冨搴︼細
a
=
a
1
+2
l
0
+
d=
0.46+2脳
0.975+1.4=3.81m
鍐插嚮绯绘暟锛?/p>
1+
渭
=1.3
浣滅敤浜庢瘡绫冲鏉挎潯涓婄殑寮煩涓猴細
m
kN
15
18
)
4
86
0
)(0.975
81
3
4
140
2
(1.3
)
4
(
4
2
)
(1
1
0
Ap
飪?/p>
飥?/p>
飥?/p>
飥?/p>
飩?/p>
飩?/p>
飩?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
.
.
.
b
l
a
P
M
飦?/p>
浣滅敤浜庢瘡绫冲鏉挎潯涓婄殑鍓姏涓猴細
23.88kN
81
3
4
140
2
1.3
4
2
)
(1
Ap
飥?/p>
飩?/p>
飩?/p>
飩?/p>
飥?/p>
飥?/p>
飥?/p>
.
a
P
Q
飦?/p>
锛堜笁锛夎嵎杞界粍鍚?/p>
鎭?/p>
+
姹斤細
M
A
=
M
Ag
+
M
Ap
=
锛?/p>
7.18+(
锛?/p>
18.15)=
锛?/p>
25.33kN路
m
Q
A
=
Q
Ag
+
Q
Ap
=12.49+23.88=36.37kN
鎵�浠ワ紝琛岃溅閬撴澘鐨勮璁″唴鍔涗负锛?/p>
M
A
=
锛?/p>
25.33kN路
m
Q
A
=36.37kN
B.
鎸夋偓鑷傛澘璁捐璁＄畻
锛堜竴锛?/p>
鎭掕浇鍙婂叾鍐呭姏
姝ら儴鍒嗕笌閾版帴鎮噦鏉块儴鍒嗙浉鍚?/p>