Tr ia l2design on new2type com posite box arch br idge w ith steel truss webs and concrete flanges

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1 25 2 Vol. 25 No JO URNAL O F TRANSPO RT SC IENCE AND ENG INEER ING Jun : X (2009) , 2, 3, 2, 2, 2 (1., ; 2., ; 3., ) :,, m,,., 32%.,,,,,. : ;; ;; : U442 : A Tr ia l2design on new2type com posite box arch br idge w ith steel truss webs and concrete flanges W E I J ian2gang 1, 2, MU Ting2m in 3, M IAO Feng 2, PENG Gui2han 2, CHEN Bao2chun 2 ( 1. College of Civil Engineering, Tongji University, Shanghai , China; 2. College of Civil Engineering, Fuzhou University, Fuzhou , China; 3. B ranch Courts of B ridge, Design and Research Institute of H ighway Planning and Surveying of Sichuan, Chengdou , China) Abstract: Developm ent of concrete arch bridges is introduced. By rep lacing the concrete webs to steel truss webs, a new2type composite box arch bridge w ith steel truss webs and concrete flanges is p roposed. The app lication of the p restressed concrete girder bridges w ith steel truss webs is p resented. Taking L ingdou B ridge in N ingde as a p rototype, a trial2design of this new type arch bridge is carried out and its structural analysis is perform ed by finite element method. The results show that the trial design of the new composite arch bridge can meet the design re2 quirement and itself weight is below 32% compared to the concrete arch ring. The initial re2 searches in this paper indicate that caused by decrease of the self weight of the arch ring, the internal forces are reduced, and it is a favor to cantilever construction and enhancement of the re2seism ic p roperty. Therefore, composite box arch bridge w ith steel truss webs and concrete flanges is a new type composite bridge which has a good foreground of app lication in bridge en2 gineering. Key words: concrete arch bridge; steel truss web; L ingdou B ridge; trial design; finite ele2 ment method : :(2008 I0018) ;(JA07014) : ( ),,,.

2,: - 41 1 2,. 41 200 m,8, ;17, 6,5, 3, 2,1010. 300 m,, 1, 3, 5. 41, 34, [ 1 ].,,,.,20,10(1999 ), 200 m, 14,,2, 14%.,.,,.,,. 300 m,. 200 m,.,. [ 2 ].,,, [ 3-5 ]. 2008,.,.,,,,.

2 2,: , m,8, ;17, 6,5, 3, 2, m,, 1, 3, 5. 41, 34, [ 1 ].,,,.,20,10(1999 ), 200 m, 14,,2, 14%.,.,,.,,. 300 m,. 200 m,.,. [ 2 ].,,, [ 3-5 ]. 2008,.,.,,,,. PC - (1),,.,.,,,.,,, [ 6 ]. F ig. 1 1Composite beam with steel truss webs,,,,,.,,,,., PC. PC [ 7 ]. 1985, PC A rbois.,1997 Boulonnais.,, PC,.,,.,: Boulonnais PC40%. [ 8-14 ] 1. 1, PC

3 42 25,,.,, D reirosen. 1PC Table 1B ridge of composite box beam with steel truss webs /m 1 A rbois 3 2 Boulonnais 3 B rasde la p laine 4 Nantenbach D reirosen Kinokawa 4 7 Shitsum i 4 8 Sarutagawa 9 Tomoegawa Europe ,,. : ;:PC, ;:. 1,PC., (160 m ) m, 9 m () m ( ). - 20,- 120,,. :,160 m,1 /4,, [ 15 ]. -,,. 2, m,8. 0 m,, m,1. 75 m,25 cm. :< 219 mm 6 mm Q345,,, 2. 6 m, m, 30 60,.,,. (m = ), m = , , , ,

4 2,: , 2., ,, Table 2Max difference value between permanent load p ressure line and arch axis line /m /m ,.,.,,4 ( a),,,,,.,:,4 ( b),,,, [ 14 ] M idas,, 3, 4 (, ). 3 (M, N ).,,24% ;, 24%. 4, 15. 4,, 32%35%. 4 F ig. 4Node constructure for steel truss web and concrete girder 3 Table 3Values of arch internal forces in permanent load (L) ( S) S/L Table 4Values of arch internal forces in temperature effects (L) ( S) S/L (JTJ022-85),5.,,.

5 Table 5Checking computation of arch strength / e /m /m kn N u /N II II II I I I I II , II( ). 5,,,, 310 MPa.,. 6 Table 6Buckling results of composite box arch bridge under permanent load /kn /kn , 34% ; t, t t, t,32%. 10 1, 10 1,.,,., 32%. 7 [ 3-4 ]. ;, t, m 3, t. 7 Table 7Quantities of arch bridge /m 3 / t / t (L) (H) ( E) ( F) E /L F /L F ig. 5 5Max values of steel truss webs stress 6.,, H /L ,PC.

6 2,: - 45, PC,., 32%,, 24% ;.,,,. ( References) : [ 1 ],. [ J ]., 2007 ( 1) : (L I Xiao2hui, CHEN Bao2chun. De2 velopment of long span arch bridges[ J ]. World B ridg2 es, 2007 (1) : ( in Chinese) ) [ 2 ],,,. [ J ]., 2009, 25 ( 1) : ( CHEN Bao2chun, L I Sheng2yong, YU J ian, et al. Trial design of reactive powder concrete long span arch bridge[ J ]. Journal of Transport Science and Engineer2 ing, 2009, 25 (1) : ( in Chinese) ) [ 3 ],,. [ J ]., 2006 ( 4) : ( CHEN Bao2chun, WANG Yuan2yang, HUANG Q ing2wei. Con2 cep tion of new type of concrete arch bridge with cor2 rugeted steel webs[ J ]. World B ridges, 2006 (4) : ( in Chinese) ) [ 4 ],. 160 m [ J ]., 2007, 27 ( 2 ) : (HUANG Q ing2wei, CHEN Bao2chun. Trial2design of 160 m long2span concrete arch2bridge with corrugated steel webs [ J ]. Journal of China & Foreign H ighway, 2007, 27 (2) : ( in Chinese) ) [ 5 ]. - [D ]. :, ( YE L in. Trial2design research on concrete arch bridge with p lain steel webs[d ]. Fuzhou: Fuzhou University, ( in Chinese) ) [ 6 ],,. [ J ]., 2005 (5) : (OUYANG Ping, L I Cheng2lin, YANG Hong2cheng. App lication of steel truss web composite structure in bridge construction[ J ]. Modern Transportation Technol2 ogy, 2005 (5) : ( in Chinese) ) [ 7 ]. - [ J ]., 2000 ( 3 ) : ( TIAN Q i2xuan. Trends of Japan steel2concrete composite bridges [ J ]. Technology of H ighway and Transport, 2000 ( 3) : ( in Chinese) ) [ 8 ]. [ J ]., 1992 ( 4) : 1-7. ( YAN Guo2m in. The Modern de2 velopment of the combined beam bridges [ J ]. Foreign B ridges, 1992 (4) : 1-7. ( in Chinese) ) [ 9 ]. Boulonnais[ J ]., 1999 (1) : ( CHEN Kai2li. The introduction of Franceπs Boulonnais Elevated B ridge[ J ]. Foreign B ridg2 es, 1999 (1) : ( in Chinese) ) [ 10 ] Saul R. Cost efficient design and construction of major steel composite bridges [ J ]. Revue de M etallurgie, Cahiers DπInformations Techniques, 2001 ( 3 ) : [ 11 ],,,. g - g g g g ψ gg g g [ J ]., 2002 ( 10) : ( Klmura Yoshikaza, Honda Akira, Yamamura M aknno, et al. Design of Kinokawa V iaduct[ J ]. B ridge and Founda2 tion Engineering, 2002 (10) : ( in Japanese) ) [ 12 ],,,. - PCg g g [ J ]., 2005 (11) : ( Fujihara H iroyuki, Shoji Akio, Sakata H iroshi, et al. Design and construction of Shitsum i Ohashi B ridge [ J ]. B ridge and Foundation Engineering, 2005 (11) : ( in Japanese) ) [ 13 ],!,,. - PCg g g g ψ g g [ J ]., 2005 (5) : (Aoki Keiichi, Takatoku Yuhei, Notoya H ideki, et al. Dynam ic behavior of PC continuous rigid frame composite truss bridge [ J ]. B ridge and Founda2 tion Engineering, 2005 (5) : ( in Japanese) ) [ 14 ],. [ J ]., 2005 ( 4) : (L I Xiao2li, HU Zhi2jian. The concep t and structure design of Por2 tugal Europa B ridge [ J ]. World B ridges, 2005 ( 4 ) : ( in Chinese) ) [ 15 ] ZHANG Jie,L IU Hai2qing. Research on closure scheme of long2span box arch bridge [A ]. Jure Radic & Bao2 chun Chen. Proceedings of Chinese2Croatian Joint Col2 loquium on Long Span A rch B ridges[ C ]. Croatia, B ri2 juni Islands: Structural Engineering Conference ( SEC2 ON) Zagreb, Croati, 2008:

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