1、Design of Cast- in- situ Box G irder Formw ork andBracket and Construction Quality Contro lAbstract Com bined w ith the construction exam p le o f the tw o ram p br idges of X indian V iaduc,t the designand calculate process o f formwo rk and bracket structure is introduced, and the construction and
2、 controlm easures forformwork and bracket are introduced.Key words Box g irder; Design fo r soffit sca ffo lding; Construction; Quality contro l矩形墩模板设计与施工 (M E “vBK ,v 116000)K 1:对沈吉高速公路 K 31+ 640. 995长山堡浑河特大桥 7. 05 2. 5m矩形墩模板设计方案, 进行了详细的介绍和计算分析, 提出了施工中一些应该注意的问题和处理办法b1oM:桥梁工程;矩形墩; 模板;设计;施工ms |: TU 7
3、55. 2 DS M : B cI|: 1673- 6052( 2010) 06- 0071- 031 + +v B |K31+ 640. 995, B 1797. 52m, tSG202La taB t + oM , t +L d80m ,M L|,18b,M MEE b8. 3m, D r Q ,/ ,$ $b W185 150cm,4mm; 105 150cm, 4mm ( 2 v); 15cm + 5cm * Pb) ?T H( 2mm)ZE,5 12 ,C ,F665cm 450cmv v, a o8,E Vv V/vM, B b _ 12W 60cm, _2 16W150cm, 5
4、 25A _,V2. ( 12a 28 ) 60cmB;3.:( 16) 150 cmB;4.A A b#,V,:_150 cmBbm1 m3 9 : 1200 1500 4mmF : m9 ( 1) r1S:25kN /m3b( 2) r H 34. 0kN /m2 (TS r#71#6 ZYm2 m rh =)b( 3) r H 3: |2kN /m3b( 4) r S = , rT Kv |/ = T l:P= 0. 22Ct0 B1 B2 v1 /2P= CHT: p) r Kv ,kN /m2;C) r , kN /m3;t0) r HW, h, V L , C k H, Vt0 =
5、 200 /( T + 15)9, T r( e );v) r , m /h;H) r 9 ) r 9(m );B1 )F4Y“ ,F4 H |110, TF4 H |1. 2;B2 ) r Y“ , l30mm H |0. 85; 50 90mm H |1. 0; 110 150mm H |1. 15b( 5) !99 v= 20 /( 2. 5 7. 05) = 1. 14m /h( l H20m 3 r9 )t0 = 200 /( T+ 15) = 200 /( 5+ 15) = 10( r5e9 )P= 0. 22Ct0 B1 B2 v1 /2 = 0. 22 25 10 1. 0 1
6、115 1. 141 /2 = 67. 53kN /m2b !9F:34FF= 1. 2 67. 53+ 1. 4 2= 83. 84kN /m23. 1 承载能力计算( 1)H _nm3, 016m1,5 tI= 1. 5m 9 , |9 z0. 6m,Lq= 83. 84 0. 6= 50. 30kN /m,Kv M = - 3 /28qI2 = - 12. 13kN # m (nm3am4#9 )b1 12, M = RW = 215 2 61. 7= 26. 53kN# m,Kv 6fm ax = 2. 6mm4185kN # m, 1 pb( 3) H _ 0. 6m1 28b,9
7、|2. 96m, |9 z0. 6m,Lq= 83. 84 0. 6 = 50. 30kN /m, te9 ,Kv M = ql2 /8 = 501 30 21 962 /8 =55109kN# m (9 VvH _)b1 28b, M = RW = 215 365. 6 = 78. 6kN# m 55. 09kN# m,Kv 6fmax = 6. 88mm 2960 1 /400= 7. 40mm, 1 pb3. 2 精扎螺纹钢受力计算Kv s 274. 6kN,25= ,A Y40Si2M ov, y 700M Pa, R = 0. 7 700MPa= 490M Pa, Vs 3. 14
8、12. 52 490= 240. 4kN, 1 pb4 i Y( 1) -1_ ,Mv5mmb( 2) F 1 ,a o1 L, P Lb( 3)r L 4, 1B F b( 4) r H 1+L, eb( 5)-5 u , b , P rV B,p z 4,s F%b5 “ - t aM B ,N !9|v9, Z1 ,YV PS9 , Z !9,V L=, 1 p, = ? B 4BtkbDesign and Construction of Rectangu lar Section P ier FormworksAbstract The design schem e fo r the 7.
9、 05x2. 5m rectangu lar section pier of Changshanpu H un R iver B ridgeon the K31+ 640. 995 Shen- JiExpressway is introduced in de tails and com putational analysis is carried ou.t Som eattentions in the construction process and correspond ing disposalm ethods are put forw ard.Key words B ridge eng ineer ing; Rectangular section pier; Formw orks; Design; Construction#73#6 : !9
