水工U形渡槽设计
- 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。
工程概况:
渡槽又称高架渠,是一组由桥梁,隧道或沟渠构成的输水系统。
用来把远处的水引到水量不足的城镇、农村以供饮用和灌溉。
分类:U型薄壳渡槽、矩形渡槽、薄腹梁渡槽、拱组合梁渡槽、下承式拱渡槽、T型刚构渡槽等
世界上最早的渡槽诞生于中东和西亚地区。
公元前700余年,亚美尼亚已有渡槽。
公元前703年,亚述国一西拿基立下令建一条483公里长的渡槽引水到国都尼尼微。
渡槽建在石墙上,跨越泽温的山谷。
石墙宽21米,高9米,共用了200多万块石头。
渡槽下有5个小桥拱,让溪水流过。
古希腊的许多城市建有良好的渡槽,但古罗马人最为认真,把供水系统看作是公共卫生设施的重要部分。
罗马第一条供水渡槽是建于公元前312年的阿庇渡槽;第十条也是最后一条则是公元226年建成的阿历山大渡槽;最长最壮观的是建于公元前114年的马西亚渡槽,虽然水源离罗马仅37公里,但渡槽本身长达92公里。
这是因为渡槽要保持一定坡度,依地形蜿蜒曲折地修建。
漆水河渡槽
水工U形渡槽槽身结构设计目录:
1.水工U形渡槽槽身结构设计计算书。
3
(1)原始资料。
2
(2)内力分析。
4
(3)结构计算。
6
(4)配筋说明。
17
2.计算数据记录表。
5
3.内力分析图。
附图1
4.水工U形渡槽槽身结构配筋图。
附图2
水工U形形渡槽槽身结构设计
一、水工U形渡槽槽身结构设计计算书
(一)原始资料(如图)
1.横截面尺寸:
槽壳内半径: 0R 1.60m = 垂直段总高: f =0.85 m 槽壳壁厚: t =0.12 m 侧 梁: 水平宽 a =0.30 m 外端高 b =0.15 m 斜边高 c =0.12 m 2.纵截面尺寸:
槽壳总长: L =10.80 m
横杆:
高 0.20 m δ =
宽 b 0.20' = 间距 e =1.50 m (近似值)
3.端肋:
沿水流方向厚度 d =0.30 m
垂 直 边 高 度 1h =1.55 m 斜边垂直高度 2h =1.62 m 斜边水平投影 m =0.29 m 横流方向支座宽 1b =0.30 m 支座间距 n l =2.86 m 3.便桥:
预制桥板:
厚度 h 0.07 m ' = 宽度 B =0.60 m 栏杆:
柱a a 0.12 1.2m m m ⨯⨯H =0.12 ⨯ ⨯
间距为e 1.0m
'≈ 扶手横档 0.080.10f f b h m m ⨯= ⨯ 便桥有效宽度:B =0.86 m ' 便桥人群荷载:2q 2 KN m /人= 4.材料:
混凝土C 30:32.51025KN m γ⨯ /砼==
224215 1.50 3.010c t c f N mm f N mm E N mm =/ = / =⨯ /
钢筋Ⅰ级: 252210 2.110y y yv s f f f N mm E N mm ='== / =⨯ / 5.建筑物等级:Ⅳ级。
查表知结构安全级别为Ⅲ级 00.9γ= 6.荷载组合:满槽水+自重+人群
自重荷载(永久荷载): 标准值
222000022
()2[2] 40.020.02 1.600.12 1.2
2(0.0630.070.620.080.10
1.5 1.0
1.60.850.12)25
4
27.6725k f f b R R t R a H
g F h b h ft e e KN m
ππ2'δπ+-=∆++'B ++++γ'⨯⨯⨯ =⨯++⨯++⨯⨯π⨯(1.6+0.12)-⨯ +⨯+⨯ = /砼
设计值0561.2905.16725.27=⨯=⨯=k G g r g 满槽水荷载(可变荷载): 标准值
2002[()]223.14 1.60[]10264.1920R q R f KN m
δγ⨯=+2-⨯0.20 =+2⨯1.60⨯(0.85-)⨯2
= /k 水水
π
设计值q 水 =61.701.11920.64=⨯=⨯水q Q γKN/m
人群荷载(可变荷载): 标准值
2220.86 3.44q q B KN m ='=⨯⨯=/k 人人
设计值q 人=m KN q Q /128.42.144.3=⨯=⨯人γ
(二)内力分析
用空间计算法程序2AQ 上机计算。
1.上机数据计算(准备两组数据,一组用于承载力计算,一组用于正常使用极限状态验算)
00.121.60 1.6622t R R m =+
=+= 0.20
0.850.752
h f m δ=-=-
=2 30(2)0.30(20.150.12)F 0.6322
a b c m +⨯⨯+∆===
10.800.3010.50l L d m =-=-= 33
300.200.200.0000888881212 1.50
b J m e 'δ⨯===⨯
2000G G G {2}.6.81384998( 1.05 1.20)
4.52366665 1.72 6.24366665( 1.0, 1.0)
f f Q
G Q Q b R a H G F h B b h q B e e KN m KN m δ'=∆++'++γγ+'γ'
/ γγ= =γ+γ= / γ= γ={ 人砼Q 承载力=,正常
0.75
0.4518072281.66h A R =
== 0.120.0722891561.66t B R ===
0220.063
0.022*******.66F C R ∆=== 10.50 6.3253102051.66
l D R =
== 33
00.1219.44019440.000088888
t E J ===
00022
6.813849983
0.247272825(27.5666.2436666527.55610 1.66
0.226581022(27.556
G G G F R =====γ⨯= {水承载力)
正常使用)
2.上机计算结果:
承载力计算
M 0 =-7.549942E-02 M 1 = .2115567 M 2 = .2214667 M 3 = .2072521 M 4 = .1726536 M 5 = .1223864 M 6 = 6.169657E-02 M 7 =-4.028062E-03 M 8 =-6.958687E-02 M 9 =-.1302293 M 10 =-.181855 M 11 =-.2211571 M 12 =-.2457184 M 13 =-.2540697
S 0 =-300.5273 S 1 =-105.1067 S 2 =-49.97215 S 3 = 1.328807 S 4 = 47.78657 S 5 = 88.75562 S 6 = 123.7834 S 7 = 152.6342 S 8 = 175.5023 S 9 = 192.8914 S 10 = 205.4156 S 11 = 213.6268 S 12 = 218.1468 S 13 = 219.5523 Z= 79.68113
N 0 =-.681385 N 1 =-.4693885 N 2 = .9664244 N 3 = 1.537593
N 4 = 2.12781 N 5 = 2.71425 N 6 = 3.276332 N 7 = 3.796139
N 8 = 4.258661 N 9 = 4.651817 N 10 = 4.9663 N 11 = 5.195339
N 12 = 5.334429 N 13 = 5.381061 NG= .4858664
T 0 = 0 T 1 = 92.71896 T 2 = 97.75652 T 3 = 99.33664
T 4 = 97.74118 T 5 = 93.30577 T 6 = 86.40169 T 7 = 77.42258
T 8 = 66.76346 T 9 = 54.79662 T 10 = 41.85808 T 11 = 28.24597
T 12 = 14.22031 T 13 = 2.171492E-03 TM= 99.33664
正常使用极限状态验算
M 0 =-6.904241E-02 M 1 = .1919571 M 2 = .2009443 M 3 = .1879737
M 4 = .1564427 M 5 = .1106412 M 6 = 5.534594E-02 M 7 =-4.535793E-03 M 8 =-6.426623E-02 M 9 =-.1195174 M 10 =-.1665533 M 11 =-.2023612
M 12 =-.2247388 M 13 =-.2323477
S 0 =-276.0692 S 1 =-96.50473 S 2 =-45.84194 S 3 = 1.29765
S 4 = 43.94534 S 5 = 81.55782 S 6 = 113.7016 S 7 = 140.1754
S 8 = 161.1712 S 9 = 177.1398 S 10 = 188.6404 S 11 = 196.2114
S 12 = 200.3176 S 13 = 201.676 Z= 73.18598
N 0 =-.6243666 N 1 =-.4275816 N 2 = .8805827 N 3 = 1.402606
N 4 = 1.94208 N 5 = 2.478112 N 6 = 2.991876 N 7 = 3.466993
N 8 = 3.88974 N 9 = 4.249081 N 10 = 4.536512 N 11 = 4.745846
N 12 = 4.872967 N 13 = 4.915588 NG= .4417494
T 0 = 0 T 1 = 85.16774 T 2 = 89.7917 T 3 = 91.23868
T 4 = 89.76901 T 5 = 85.69219 T 6 = 79.34942 T 7 = 71.10252
T 8 = 61.31363 T 9 = 50.32399 T 10 = 38.44205 T 11 = 25.94059
T 12 = 13.05981 T 13 = 1.520416E-03 TM= 91.23868
3.绘内力(应力)图
①承载力计算内力图:
②正常使用极限状态验算内力图:
4.找出最大纵向正应力m σ和最大剪应力m τ
①承
载
力
计
算
22993.7466 =2168.978 m m KN m KN m τ=/σ/
②正常使用极限状态验算 22=912.7137 =1991.615 m m KN m KN m τ/ σ/ (三)结构计算
所用参数:01.20.90.85d ct γ= γ= ψ=0.95 α=
1.正截面承载力计算
3
20s 1.20.90.95797.236510A 3895.069210
d y Z mm f γγψ⨯⨯⨯⨯===
选配钢筋:
2s (A 3895.069) 1212
}mm φφ = 内层1416
外层
2.正截面抗裂验算
查表
1.35m γ'=
修正值:
3
0300
) 1.35(0.7)(0.85 1.60.12)10
1.202961783
1.203
m m f R t 300γ=γ'(0.7+
=⨯+++++⨯ = ≈
222168.978 2.168978m KN m N mm σ=/=/ 00.9 2.168978 1.95209802m γσ=⨯=
0.85 1.203 2.25 2.301ct m tk f αγ=⨯⨯=
m
ct
m tk
f αγσ<γ
∴满足正截面抗裂要求
3.斜截面承载力计算
220.120.24240b t m mm ==⨯==
000.85 1.6 2.452450h f R m mm =+=+==
该梁均布荷载设计值:
G q Q q q g =γ+γ+γk 人k 水水砼=70.61+4.128+29.0561 =103.7941KN/m
剪力 01
(
)0.90.950.5103.7941 2.86128.2350157
2
n V q l K N ψ=γ=⨯⨯⨯⨯= 则3000.07 1.2128.2350157100.0724*******
01.25 1.252102450
d c yv V bh f f h γ-⨯⨯-⨯⨯⨯=<⨯⨯
所以按结构配筋
4.斜截面抗裂验算
2993.7466m KN m τ= /
222221987.4932 1.9874932tp m m KN m N mm σ=τ=⨯993.7466 KN/= /= / 2200.9 1.8247736 1.9874932tp N mm N mm γσ=⨯ /= /
20.85 2.25 1.9125ct tk f N mm α=⨯= /
tp
ct tk f γσ
α<
∴满足斜截面抗裂
5.跨中截面横向承载力计算
1000120b mm h t mm = == 25a a mm ='=
001202595952570h h a mm h a mm =-=-= -'=-=
6025352
h
a mm -=-= (1)槽底截面横向承载力计算
13133.13515153.85122M M KN m N N KN ==⋅ ==
0 3.135150.058218736583553.851222M h e m mm a mm N =
=== >-= 故 属于大偏心受拉构件,内侧受拉
04735122
h
e e a mm =-
+=-= 设 0b x h ξ= 查
0.426sb α=
232
00 1.253.851221012150.4261000950)21070
d c sb s y N
e
f bh A f h a αγ-⨯⨯⨯-⨯⨯⨯'==<'(-'⨯
选配
2
6@130(21)
s A m m m φ '= 7 / 302
2
0()
1.253.85122101221021770015100095
d y s s c N
e
f A h f bh ααγ-''-'⨯⨯⨯-⨯⨯=
=<⨯⨯ 故按2x α<' 计算 s A
012025478222
h e a e mm '=
-'+=-+= 320 1.253.851221082360.4734()21070
d s y N
e A mm
f h a γ'⨯⨯⨯===-'⨯
配筋:
22min 08@130(360.47340.15%100095142.5)
s A mm m bh mm m ρφ =/>=⨯⨯=/
(2)槽侧横向承载力计算
221.8337049.864072M M KN m N N KN == ⋅ ==
0 1.8337040.185897185.897359.8640722M h e m m a mm N =
===>-= 故 属于大偏心受拉构件,外侧受拉
022*******
h
e e a mm =-
+=-= 设 0b x h ξ= 查得
0.426
sb α== 232
00 1.29.86407210194150.4261000950
()21070
d c sb s y N
e
f bh A f h a γ-α⨯⨯⨯-⨯⨯⨯=-<'-'⨯选配 2
6@130(217)
s A m m m φ =/
302
0()
1.29.8640724100d y s s c Ne f A h a f bh 2
γ-''-'⨯⨯⨯194-210⨯193⨯70
α=
=<15⨯1000⨯95
故按 2x a <' 计算 s A
01202522926422
h e a e mm '=
-'+=-+= 320 1.29.86407210264212.58017()21070
d s y N
e A mm
f h a γ'⨯⨯⨯===-'⨯
配筋:
22min 06@1302170.15%1000142.5s mm m bh mm m ρ2φ (A =/>=⨯⨯95=/
6.横向抗裂验算
010*********b mm h mm a mm h mm = = '= =
3003000.70.7 1.1
120
1.551.11.705
m
h
+=+>γ
=⨯=∴
5
4
2.1107
3.010
s E c E E ⨯α===⨯ (1)槽底
13133.13515153.85122s s M M KN m N N KN == ⋅ ==
02
()1000E s s A bh A A mm
=+α+'=⨯120+7⨯(387+217) =124228
2
000
210007387957217252124228
60.33527E s E s bh A h A a y A mm
2
+α+α''=
⨯120+⨯⨯+⨯⨯ =
= 33
22
000000324
()()()33
100060.33527738733
9560.33527)7217148919980.3E s E s by b h y I A h y A y a mm 32-=++α-+α'-'⨯1000⨯(120-60.33527) =++⨯ ⨯(-+⨯⨯(60.33527-25) =
3000148919980.3
2468839.78212060.33527
I W mm h y =
==-- 33
002
3.13515110 1.70553.85122102468839.782124026.66670.741564944s m s M N W A N mm γ⨯⨯⨯+=+
= / 21.7050.85 2.25 3.2608125m ct tk f N mm γα=⨯⨯= /
则
00
s m s
m ct tk M N f W A γ+<γα 故 满足抗裂要求
(2)槽侧
221.8337049.864072s s M M KN m N N KN == ⋅ ==
02
()10001207(217217)E s S A bh A A mm
=+α+'=⨯+⨯+ =122893.3333
2
000
210007217957217252122893.3333
60E s E s bh A h A a y A mm
2
+α+α''=
⨯120+⨯⨯+⨯⨯ =
= 33
22
000000324
()()()33
1000607217
33
9560)7217147544333.3E s E s by b h y I A h y A y a mm 3
2-=++α-+α'-'⨯1000⨯(120-60) =++⨯ ⨯(-+⨯⨯(60-25) = 3000147544333.3
2459072.22212060
I W mm h y =
==--
33002
1.83370410 1.7059.86407210245907
2.22212289
3.33330.137598s m s M N W A N mm γ⨯⨯⨯+=+
=/ 21.7050.85 2.25 3.2608125m ct tk f N mm γα=⨯⨯= /
则
00
s m s
m ct tk M N f W A γ+<γα 故 满足抗裂要求
7.横杆设计
22 1.66 3.32l R m ==⨯=
022 1.6 3.2n l R m ==⨯=
0.20.225 1.05 1.05G g b KN m ='δγγ=⨯⨯⨯= /砼
G e 2 1.5 1.20.07 1.525 1.05 6.35625KN m Q q q h e =γ+'γγ⨯⨯+⨯⨯⨯ /人砼==
00.8835231M KN m =-⋅
则
22002211
()
82
1
0.90.95 1.05 3.32 6.356250.60.8835231)2
2.970559076G M gl qB M KN m
ψ=γ+-1 =⨯⨯(⨯⨯+⨯⨯+8 = ⋅
01
[()]0.90.950.5(1.05 6.35625) 3.2
2
10.13175n V q g l KN ψ=γ+=⨯⨯⨯+⨯ = 4.595488G N KN =
0.22000.220025b b m mm h m mm a a mm ='== =δ== ='=
002002517517525150200257522
h h a h a mm h a =-=-= -'=-=-=-=
(1)按,G G N M 计算跨中截面的纵向受力筋
0 2.970559076639.879611()754.5954882G G M h
e mm a N =
==>-= 故按大偏心受拉计算
0639.87961175564.87961152
h
e e a mm =-
+=-= 设 0b x h ξ= 查得
0.426
sb α== 232
00 1.2 4.59548810564.8796115150.4262001750
()210150
d G c sb s y N
e
f bh A f h a γ-α⨯⨯⨯-⨯⨯⨯=-<'-'⨯选配 2
10(157)s
A m m
2φ = 302
0()
1.2 4.595488100
d G y s s c N
e
f A h a f bh 2
γ-''-'⨯⨯⨯564.8796115-210⨯157⨯150α=
=<15⨯200⨯175故按 2x a <' 计算 s A
02002554562022
h e a e mm '=
-'+=-+= 320 1.2 4.595488101085.410499()210150
d G s y N
e A mm
f h a γ'⨯⨯⨯620===-'⨯
配筋:
22min 01570.20%20017570s mm m bh mm ρ22φ10 (A =/>=⨯⨯=
(2)按0,G N M 计算两端截面的纵向受力筋
000.8835231192.25882()754.5954882G M h
e mm a N =
==>-= 故按大偏心受拉计算
015575802
h
e e a mm =-
+=-= 设 0b x h ξ= 查得
0.426
sb α== 232
00 1.2 4.85866410150.4262001750
()210150
d G c sb s y N
e
f bh A f h a γ-α⨯⨯⨯80-⨯⨯⨯=-<'-'⨯选配 2
10(157)s
A m m
2φ = 302
0()
1.2 4.858664100d y s s c Ne f A h a f bh 2
γ-''-'⨯⨯⨯80-210⨯157⨯150α=
=<15⨯200⨯175
故按 2x a <' 计算 s A
02002515523022
h e a e mm '=
-'+=-+= 320 1.2 4.8586641042.6()210150
d G s y N
e A mm
f h a γ'⨯⨯⨯230===-'⨯
配筋(与跨中同步配筋):
22min 01570.20%20017570s mm m bh mm ρ22φ10 (A =/>=⨯⨯=
(3)按V 计算横向钢筋
31.210.131751012158.1d V N γ=⨯⨯= 00.070.07152001752450c f bh N =⨯⨯⨯=
则 00.07d c V f bh γ< 故 按结构设计配筋 210@140(78.5)
sv A mm φ = (单肢箍筋) 8.端肋设计
1 2.860.3 3.16n l l b m =+=+= 3.7
2 3.16
0.2822
L l k m --=
==
2
01220)][][2]}2
]0.30}252
41.96821053n R l h h d h m R f d KN
π2
{+++-++
⋅γ {⨯++⨯+⨯π⨯1.6
⨯+⨯⨯+⨯⨯ = 1砼
[端肋自重]=[2(m b =[2(0.290.3) 2.86][1.55 1.62]0.30-[0.29 1.622 1.60.85
00(2)2][]22
0.12(2 1.60.12)
20.850.1220.063][5.40.3]25
2
t R t L
ft F d KN
π++
+∆⋅-⋅γπ⨯⨯⨯+ ⨯⨯++⨯⨯-⨯ =126.4551702 砼
[槽壳自重]=[2=[2224)220.20.2 1.6 1.2
=(20.070.640.080.10) 5.4251.5 1.0
31.8456f f a H L
h B b h e e KN
2'δ=+'++⋅⋅γ'⨯⨯⨯2⨯0.12⨯ +⨯⨯+⨯⨯+⨯⨯ = 0砼
[便桥自重](2b R
[]=[=41.96821053126.455170231.8456=200.2689807KN
++ 则总自重端肋]+[槽壳]+[便桥]
B 220.86 5.418.5762
L
q KN '
=⨯⨯⨯= 人[人群]=2 2)67.74219691 5.4365.807863322
Rb L
hR KN e π'δ+-⋅⋅γ⨯2水[水]R =(==
所以
承载力计算中:
[][][]2
200.2689807 1.0518.576 1.2365.8078633 1.1 634.9622794 G Q G
KN
=⋅γ+⋅γ+⋅γ⨯+⨯+⨯水自重人群水== 634.9622794
2170.68878483.72
G
g KN m L === /
则计算得
max max 206.3627408269.68828M KN m V KN
= ⋅ =
内力图如下
正常使用极限状态验算中:
[][][]2
200.2689807 1.018.576 1.0365.8078633 1.0 584.652844 G Q G
KN
=⋅γ+⋅γ+⋅γ⨯+⨯+⨯水自重人群水== 584.652844
2157.1647433.72
G
g KN m L === /
计算得
max max 190.0121743248.3202939M KN m V KN
= ⋅ =
内力图如下
120()()(1.55 1.62)(0.85 1.600.12)0.6600h h h f R t m mm
=+-++=+-++ ==
0.330050b m mm a mm == =
060050550h h a mm =-=-=
(1)正截面承载力计算
6
s 22
0 1.2206.3627408100.18191753115300550d c M f bh αγ⨯⨯===⨯⨯
110.202378535ξ==
20150.202378535300550
2385.175602210
c s y f bh A mm f ξ⨯⨯⨯=
== 选配 2
820(2513)s
A m m φ = ,分两排,净距 30e mm =
min 02513
1.52%0.20%300550
s A bh ρ=
==>ρ=⨯ (2)斜截面承载力计算
31.2269.6882810323625.936d V N γ=⨯⨯=
00.250.2515300550618750323625.936c d f bh N V N =⨯⨯⨯=>γ=
故截面尺寸满足抗剪要求
00.070.0715323625.936c c d V f bh V N ==⨯⨯300⨯550=173250N <γ=
应由计算确定腹筋
首先选配 12@150φ 双肢箍筋 2226sv A mm =
max 150200s mm s mm =<= 可以
0226
1.25 1.25210550217525150
sv sv yv
A V f h N s ==⨯⨯⨯= 323625.936217525541150.936323625.936cs c sv d V V V N V N =+=+=>γ=
min 2260.5%0.12%300150
sv sv A bs ρ=
==>ρ=⨯ 故所选箍筋满足要求
(3)正截面抗裂验算
3003000.70.7 1.2 1.1600
h
+=+=>
1.551.11.705m γ=⨯=∴
02
30007E s A bh A mm
=+α=⨯60+⨯3041 =200273.3333
2
00
2
3007304155022000273.3333
325.3E s bh A h y A mm
2
+α=⨯600+⨯⨯ =
= 33
2
00000324
()()33
300325.37325.3070504)33
6538818613E s by b h y I A h y mm 3
-=++α-⨯300⨯(600-325.3) =++⨯3041⨯(550- =
30006538818613
23804103.22600325.3
I W mm h y =
==--
0 1.7050.85 2.2533804103.2277620717.3577.62071735192.0121743m ct tk f W N mm KN m M KN m
γα=⨯⨯⨯= ⋅ =⋅<= ⋅
按最大裂缝宽度验算
1231.0 1.0 1.55050221587c mm e
a c d mm ααα= = = =
=++
=++=2
2228730052200te A ab mm ==⨯⨯= 30410.05825670432200
s te te A A ρ=
== 6
20190.012174310140.00011410.870.875133041s ss s M N mm h A σ⨯===/⨯⨯
max 123
5
max (30.1
)140.000114122
1.0 1.0 1.5(3500.1)0.058256704
2.110
0.19[]0.3ss
s
te
d
w c E mm w mm σααα=+ρ =⨯⨯⨯
⨯⨯+⨯⨯ =<= 故满足裂缝宽度要求
(4)斜截面抗裂验算
3
2max 248.32023410 1.379557186300600
m V N mm bh ⨯τ===/⨯
21.379557186tp m N mm σ=τ= /
2200.9 1.379557186 1.24tp N mm N mm γσ=⨯ /= /
20.85 2.25 1.9125ct tk f N mm α=⨯= /
tp
ct tk f γσ
α<
∴满足斜截面抗裂要求
(四)配筋说明
1.U 型渡槽薄壳混凝土保护层取25m m ,端肋取50m m 。
2.纵向受力筋布置在槽底高度为0.24m 范围之内,内层为1212φ,
外层为1416φ。
3.纵向附筋及槽顶驾力筋取8φ,按间距约150m m 排列。
4.横向钢筋根据计算和结构取8@130φ,槽侧与槽底统一选取。
5.侧梁(单侧)纵向为410φ。
6.栏杆竖向筋取8φ,箍筋取6φ,布置见配筋图。
7.止水缝宽为50m m ,深25m m 。
其他按计算选配
二、水工U 型渡槽槽身结构配筋图
(见图)。