Integral Abutment Bridge Design 的几篇文献

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- }7 J$ C, X: Z9 u; Y# A( AIntegral Abutment Bridge Design Guidelines(92 Pages)9 s% l+ H! o/ l2 b6 g8 H
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TABLE OF CONTENTS
/ J) Q5 t) j) p% T- ^  d" O  l) @Table of Contents...........................................................................................................................................vii' }0 F" y* S0 B5 l
Introduction.....................................................................................................................................................xi
* G4 C7 Y* U$ h% r1 @6 w8 Z# C5 i; @SECTION 1 Introduction to Integral Abutment Bridges...............................................................................1-16 u( O! `- t* D! y& D
1.1 Integral Abutment Bridge................................................................................................................1-1
( i* B& ~4 D! R3 C/ Y) r1.2 Difference from Conventional Bridges............................................................................................1-18 |5 ~6 E, y3 e" _. e
1.3 Document Precedence.....................................................................................................................1-1
( i) w& w7 z* b6 }1 |+ D1.4 Definitions......................................................................................................................................1-19 T0 M) o" d! M$ P1 g2 B0 I  T
1.5 Notation..........................................................................................................................................1-3- L. p: h+ f9 b% f4 M1 m
SECTION 2 General Design and Location Features.....................................................................................2-1
2 i; U  B4 k8 |0 p$ R2.1 First Choice.....................................................................................................................................2-1+ |+ m2 y8 p3 W7 O% B6 S* t
2.2 Structure Geometrical Criteria.........................................................................................................2-1
9 }2 Z* d3 A5 Y2.2.1 Criteria for the Simplified Design Method.............................................................................2-1+ y3 M: H& n6 G4 p- j  [' E! @$ m$ @
2.2.2 Detailed Design for Projects That Exceed the Criteria for Simplified Design......................2-2
& r1 P% I: d; H. V2.2.3 Semi-Integral, Jointed and Other Structural Alternatives......................................................2-2
. g7 M  b+ J9 s" w/ v" V: ^# ]- j2.3 Laying out the Bridge......................................................................................................................2-3; ]- c2 M! ~7 y7 _
2.3.1 Conventional Layout..............................................................................................................2-3
/ p; Z$ ]3 l& i. ^2.3.2 Ideal Layout...........................................................................................................................2-3- B2 I  o3 W$ F4 @! h- Z
2.4 Hydraulic RequirementS.................................................................................................................2-56 Q2 h: B1 `. z9 |& Q
2.4.1 Scour Considerations..............................................................................................................2-6
$ d5 W$ L( t3 i) \" f! I2.4.2 Cofferdam Requirements.......................................................................................................2-6& a8 R* T6 _: B, g6 J
2.5 Geotechnical...................................................................................................................................2-6: ^1 B2 C! H0 h' o( k3 T
SECTION 3 Loads........................................................................................................................................3-1! U( N3 O) u% _* V: j
3.1 General Information........................................................................................................................3-1
! w0 n! y$ ]2 {3.2 Application of Loads.......................................................................................................................3-19 j/ t  f3 ]4 ]: c! r  [
3.2.1 Construction Stage.................................................................................................................3-10 j8 {2 \# A$ u4 f) s
3.2.1.1 Permanent Dead Loads on Pile Cap..............................................................................3-13 a1 O: E; v6 b/ r  [# _3 h6 L6 {
3.2.1.2 Construction Dead and Live Loads...............................................................................3-1' I2 V- _. X; h4 S7 v; z
3.2.1.3 Permanent Dead Load on Piles.....................................................................................3-1- X* f; j( F) s, _. T
3.2.2 Final Stage.............................................................................................................................3-1
, p2 }2 U7 C7 }2 k' w3.2.2.1 Composite Permanent Dead Loads...............................................................................3-2
; I' a' s8 T2 L9 M3.2.2.2 Live Loads....................................................................................................................3-2
( g9 v% I4 }1 D# j1 V3.2.2.3 Longitudinal Effects.....................................................................................................3-21 e$ L% x1 \, J" r
3.2.2.4 Earth Loads...................................................................................................................3-2
+ d3 P% e' c/ bSECTION 4 Structural Analysis and Evaluation...........................................................................................4-1; ?  g5 f$ z: @3 ~) r0 ~- R$ j7 O: h
4.1 General Information........................................................................................................................4-1, I- }/ V( ^- H4 r$ ?
4.2 Structural Design Criteria................................................................................................................4-1- R0 \, z7 x+ F! \" m; B0 d' X$ u
4.3 Design Methodology......................................................................................................................4-1+ j1 G% E1 m. K
4.3.1 Simplified Design Method.....................................................................................................4-1, [1 {: V8 M5 i% o/ H
4.3.2 Detailed Design......................................................................................................................4-2
# ]( s& H1 N2 R0 d4.4 Superstructure.................................................................................................................................4-2$ E6 m! {: R/ K5 s  P
4.4.1 Bridge End and Anchorage General Details..........................................................................4-2. R2 p) _- G, y: e) L- K7 Q
4.5 Substructure....................................................................................................................................4-3
3 Z) M! J4 m. C7 W. m4.5.1 Abutment Movement..............................................................................................................4-3
. ~7 E8 q  d* X* a; G' D6 F4 Z4.5.1.1 Thermal Movement.......................................................................................................4-3% j, @$ j( A6 c4 A
4.5.1.2 Shrinkage and Creep.....................................................................................................4-4
( l5 u3 X+ S7 u0 q: K3 f, {. 2009 by the Structures Section, Program Development Division' v6 P5 X' b4 ?& [& Y2 H! e
Vermont Agency of Transportation
) l5 k' x& A. @0 nviii 2008VTRANS INTEGRAL ABUTMENT DESIGN GUIDELINE# `! s0 l, r( f0 y* z% O) `4 P
4.5.1.3 Total Allowable Movement..........................................................................................4-4
- |$ O- j, L2 R* Q5 ]8 N4.5.1.4 Grade of Steel...............................................................................................................4-40 j+ T# m  q2 t/ Q% G# ]5 S  }
4.5.1.5 Pile Selection................................................................................................................4-4
" y# X2 S4 Q2 t/ K9 p  B( Z4.5.1.6 Pile Orientation.............................................................................................................4-9, w: l1 e8 p2 u9 k$ y+ _( M
4.5.2 Pile Design............................................................................................................................4-9
7 h; V5 D: y) S" g/ `5 ?% ]' M4.5.2.1 L-Pile Software Analysis............................................................................................4-11
0 B" E" U/ A1 q) a2 S4.5.2.1.1 Lateral Load at Pile Head.......................................................................................4-11
) ?) ~1 J8 L4 A4 @  [7 Q4.5.2.1.2 Pile Deflection and Moment..................................................................................4-110 D3 W4 [2 @& U7 [" L
4.5.2.1.3 Unbraced Lengths..................................................................................................4-12
* a; D  D/ m  Y( g7 f4.5.2.1.4 Depth to Fixity.......................................................................................................4-121 Y/ o( d9 X/ q' o/ D; N
4.5.2.2 Combined Axial Compression and Flexure................................................................4-16, m. f4 \0 k$ t& G# \5 N
4.5.3 Pile Cap...............................................................................................................................4-160 r, |) G- y2 P: r' i0 i2 y, H
4.5.4 Wingwall Design..................................................................................................................4-16
) f# G. A5 x- c4.6 Project Notes and Special Provisions............................................................................................4-16: p/ H" o8 B0 K' j3 N. Y9 N5 X
4.7 Load Rating..................................................................................................................................4-16) g; d# n  @9 Q) ~
SECTION 5 Concrete Structures...................................................................................................................5-1& u+ Y$ w6 }5 h
5.1 General Information........................................................................................................................5-1
2 w9 l, O  `6 k2 o8 x5.2 Prestress Superstructure Specific Details........................................................................................5-1
& e9 I* H. c0 Z+ \5.2.1 Voided Slab and Box Beam Bridge Decks............................................................................5-1) r8 h( ]' t8 p2 U& Z
5.2.2 Northeast Bulb-T (NEBT)......................................................................................................5-2
! p/ ~; R4 l) v, @+ x( T5.2.2.1 Cast-In-Place Concrete Slab Decks..............................................................................5-4
7 [; o, B- s8 [0 S5.2.3 Design for Frame Action (Negative Moment) at Ends of Deck.............................................5-4
5 _/ `* F% L3 W' e9 |SECTION 6 Steel Structures........................................................................................................................6-13 P% {1 C9 w, G. U
6.1 General Information........................................................................................................................6-1
. p4 f* ~4 o' X" @6.2 Steel Girder Specific Details...........................................................................................................6-1
5 R) [) R% D$ H5 N% _; Z( s  l% fSECTION 7 Aluminum Structures................................................................................................................7-1
8 w8 Y2 ?4 {' K7 u7.1 General Information........................................................................................................................7-1
5 k7 J+ C5 l0 _) fSECTION 8 Wood Structures.......................................................................................................................8-1
, I, w6 x/ E7 x: Z$ A  X# ~8.1 General Information........................................................................................................................8-1
& l# j4 J* {# A0 v( mSECTION 9 Deck and Deck Systems............................................................................................................9-1
0 R! v; b6 J" l4 u9.1 General Information........................................................................................................................9-17 Y3 `8 ?% p% V& u5 l) _
SECTION 10 Foundations..........................................................................................................................10-1
. F3 y6 O% {6 w, P5 k0 l10.1 Initial Considerations................................................................................................................10-1( Y& e, `8 @3 ^+ Y( \  ^
10.1.1 Geotechnical Exploration.....................................................................................................10-1
- k+ x% h2 }7 |7 ?+ b10.1.2 Pile Design and Verification................................................................................................10-1
" {3 M4 G3 j( Q: [4 ~10.1.3 Required Information for Contract Documents....................................................................10-1
2 N5 N  R! L) z' S- x10.2 Selecting a Pile for Integral Abutments....................................................................................10-1
  u+ n* h' ~$ M: c/ s9 ^& U10.2.1 Loads on Piles......................................................................................................................10-1" z$ J0 N! ^3 C9 M  p* @# _
10.2.2 Pile Cap Geometry...............................................................................................................10-29 X3 l" {$ y8 T$ P3 W. v
10.2.2.1 Number of Piles and Pile Spacing..............................................................................10-2' k- ^& b4 }+ x
10.2.2.2 Pile Groups.................................................................................................................10-23 L' p$ `5 [/ u+ o% {
10.2.2.3 Pile Length Requirement............................................................................................10-2
& X' ?/ [  l/ C) L4 k( h/ s10.3 Service Limit State....................................................................................................................10-23 K3 l8 z1 R4 o% ?3 I: f; u
10.4 Strength Limit State..................................................................................................................10-2
$ T: j" @0 j2 d% q10.4.1 Nominal Structural Pile Resistance (NSPR)........................................................................10-3, F8 \7 w2 C. h7 f- O9 E' R3 {2 Y
10.4.2 Nominal Axial Pile Resistance (NAPR)..............................................................................10-3
, B6 k" U  M2 {9 `5 m/ z8 [10.4.3 Downdrag and Other Losses to Geotechnical Strength.......................................................10-3) \4 i; D. H+ Z% h" C  w% z
10.4.4 Strength Limit State Resistance Factors for Driven Piles....................................................10-3
, F/ I* c/ @, V8 r0 s6 W: l2 {. 2009 by the Structures Section, Program Development Division
' m9 J3 B; m6 `4 M/ a0 YVermont Agency of Transportation
+ R' y( d7 e, M4 d# U. A1 |  ~TABLE OF CONTENTS ix
4 j% I; \4 _% N  k; L8 a9 Z10.5 Pile Driving Analysis................................................................................................................10-4
# r* s# v# O7 L: I0 ^: E+ ?10.5.1 Pile Driving Concerns..........................................................................................................10-4
# z2 N* Y% C% b. h* f9 I1 \$ M10.5.2 Maximum Pile Driving Stress..............................................................................................10-4
# e# k6 @9 B2 a, S! S3 s2 K0 K2 D+ N10.5.3 Nominal Pile Driving Resistance (NPDR)...........................................................................10-59 `" w5 W3 b$ ^8 w
10.5.3.1 Verification of the Nominal Axial Pile Resistance (NAPR) in Compression............10-50 K- k2 U2 l- x
10.5.4 Resistance Factors for Verifying the NAPR........................................................................10-5
/ I7 }2 ^5 p5 c4 j. s# M  E3 y10.6 Design Steps for Piles...............................................................................................................10-6
) t/ d* d% T8 p# \5 ]9 _, K2 v2 d4 _SECTION 11 Abutment, Piers and Walls....................................................................................................11-1+ A% f" }8 N2 d5 y6 {: _7 W! y% j
11.1 General Information..................................................................................................................11-1* M" w) O7 l: d3 C
SECTION 12 Buried Structures and Tunnel Liners....................................................................................12-1
: x0 E3 G9 q2 `$ A" m, w, V) ^12.1 General Information..................................................................................................................12-1
7 m# C3 i. ]2 p0 ^3 V9 G2 C8 }! ]SECTION 13 Railings................................................................................................................................13-1
# q; I& A; t% V' F& m* y# S, S13.1 General Information..................................................................................................................13-1, j) j, i8 j5 y. x* z
SECTION 14 Joints and Bearings...............................................................................................................14-1
/ b5 J4 W+ T: |14.1 General Information..................................................................................................................14-17 M: s; H1 c* @' p" f( [) |& K3 Y
SECTION 15 Summary..............................................................................................................................15-16 o! g( _- u9 I( S
SECTION 16 References............................................................................................................................16-10 O& D# @0 M! i# d- d  S, H, L
16.1 General Information..................................................................................................................16-1: ~! W7 x. J6 B0 @$ n: m
16.2 Performance.............................................................................................................................16-14 U# ^; O, E5 v* g
16.3 Design Issues............................................................................................................................16-2
1 ]  Q6 t; c2 G- T. J& f+ H16.4 Analysis....................................................................................................................................16-2
8 a/ C( g  U% h16.5 Approach Slabs.........................................................................................................................16-2
! @  ]- B) R" L! _, X3 ]16.6 Forces.......................................................................................................................................16-2
5 G& \! v/ b7 K# |16.7 State Manual References...........................................................................................................16-3  _# A# g" b7 |! W5 e' Q
Appendix A Design Outline.............................................................................................................................1
* q/ f" S  I2 v; `Appendix B Design Example...........................................................................................................................1
8 d3 k1 ~- c8 V, ]+ U8 y$ UNotes:..........................................................................................................................................................16-1+ N9 y8 `$ I" ^0 \

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cjcc 发表于 2011-4-8 23:00:03
INTEGRAL ABUTMENT BRIDGES - DESIGN AND CONSTRUCTIBILITY (8 Pages)
4 Y& J6 D% C; m2 v# i integralabutmentbridges.pdf (368.95 KB, 下载次数: 11, 售价: 1 元堡币)
" }7 y/ Y; V- t! aDavid I. Harvey, Don W. Kennedy
, _! t) s9 H" f# m+ F8 F+ YAssociated Engineering (B.C.) Ltd., Canada
0 G' C  d  n% [, v# k# z/ |Gordon W. Ruffo
- w& y3 ?% G7 e2 N) m2 fCarston-Aimes Construction Consultants Ltd., Canada- b/ T% C" u" ?' _" c

: \; P* K' J3 O( c* ?
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cjcc 发表于 2011-4-8 23:12:33
本帖最后由 cjcc 于 2011-4-8 23:13 编辑
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5 g. k. r- V3 b. `Integral Abutment Bridges Current Practice in the United States And Canada(20 Pages). r- h( z' m; r( r+ }/ W4 x
Integral Abutment Bridges Current Practice in the united states and Canada.pdf (1.44 MB, 下载次数: 28, 售价: 1 元堡币)
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目录

目录
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2 ]* _  z" J/ S9 F1 S2 i
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cjcc 发表于 2011-4-8 23:18:54
INTEGRAL BRIDGE ABUTMENTS(50 Pages)3 e/ o6 |; ~4 H- U! N' I8 T1 I
R. J. Lock
5 q7 S6 s$ C; X; g2 Z* [  H4 ?* XCUED/D-SOILS/TR320 (June 2002)
  X6 `5 p/ B. _& k1 h7 QM.Eng. Project Report/ n" v, s: S# W3 Z
INTEGRAL BRIDGE ABUTMENTS.pdf (1.47 MB, 下载次数: 3, 售价: 1 元堡币)
, t4 I: e" k6 a' K1.0 INTRODUCTION ..............................................................................................4  i' x0 L$ C  t
1.1 Purpose and Scope of Project .................................................................................... 5
) c6 x+ R* ]6 _, f1.2 Mode of Bridge Movement ....................................................................................... 6
9 ^9 v- G, ]$ {) V1 V7 Y0 D/ ]- |1.3 Magnitude of Deck Expansion .................................................................................. 6
8 k1 I, K  u# R5 j3 c2.0 LITERATURE REVIEW - Model Test Procedures...........................................73 V& q9 l* G: v
2.1 TRL Report 146: Cyclic loading of sand behind integral bridge abutments............. 79 ~7 ]9 w) \, U
2.2 Integral Bridges: A fundamental approach to the time-temperature loading problem! O4 d# q" k% z/ E
(England et al., 2000) .......................................................................................................... 11
$ b8 Q  T; t, f: X& g3.0 EARTH PRESSURES - Experimental Results.................................................13
4 v: A8 F# x6 f2 H& p' V% B3.1 BA 42/96 - The Design of Integral Bridges ............................................................ 131 y' t- T' g7 y. C/ O; n
3.2 TRL Report 146: Cyclic loading of sand behind integral bridge abutments
, K+ ^5 T: J! Z(Springman et al. 1996) ....................................................................................................... 14
: a) D9 F& C  {: y$ a3.3 Integral Bridges: A fundamental approach to the time-temperature loading problem
2 L  w3 r+ G' c" ?3 C; P2 s$ U(England et al., 2000) .......................................................................................................... 16. l% R0 {& A+ Q: s- O8 I. k/ M
3.4 Experimental and Analytical Investigations of Piles and Abutments of Integral
; X; S+ |8 b- R- VBridges (Arsoy et al., 2002) ................................................................................................ 197 _  d- ^5 D. m, p+ v
4.0 EARTH PRESSURES - Field Measurements ..................................................205 E+ I# |! H9 f: K8 \* @
4.1 Field tests................................................................................................................. 20
  f( c+ ^; B0 t( s- ?: R4.2 Testing an Integral Steel Frame Bridge: Elgaaly et al., 1992; Skew Effects on
% R' V, F: t4 R, {Backfill Pressures at Integral Bridge Abutments: Sandford & Elgaaly, 1993. ................... 21, l- Z& _. `' v( W! ]1 s7 L! ~
4.3 Measurement of thermal cyclic movements on two portal frame bridges on the M1:
2 }9 b2 I- R' `' jDarley & Alderman, 1995 ................................................................................................... 248 i: c  |1 e8 X9 f
4.4 Field Study of an Integral Backwall Bridge: Hoppe & Gomez, 1996..................... 24
7 j2 n& z  n* x! ~# r6 h4.5 Seasonal thermal effects over three years on the shallow abutment of an integral, w+ W& K; x0 d- W. W4 H
bridge in Glasgow: Darley et al., 1998................................................................................ 26
! r: u+ I& q: t+ Q4.6 Performance of an integral Bridge over the M1-A1 Link Road at Bramham
& U. E4 e! ]$ \5 B4 ~! @; WCrossroads: Barker & Carder, 2001 .................................................................................... 27
; [% W/ u! c( [1 C4 P8 Y4.7 Field Performance of Integral Abutment Bridge: Lawver et al., 2000.................... 28
- ^. L0 j9 R5 T. r4.8 Integral Bridge in West Lafayette, Indiana. Frosch, 2002....................................... 298 m2 j7 ^2 t! B% w7 T; _4 U
4.9 Coefficients of Thermal Expansion......................................................................... 30
1 {5 V  |. K! C9 c: c. J, a/ G6 H4 L4.10 Influence of deck compression................................................................................ 318 n# N& H+ A! v" ~) i+ H* ?
5.0 SETTLEMENT - Experimental Results ...........................................................33; N3 b' ]. K) H, u0 c6 D, v
5.1 BA 42/96 - The Design of Integral Bridges ............................................................ 33/ A. C$ {+ G7 d* }) G
5.2 TRL Report 146: Cyclic loading of sand behind integral bridge abutments
( C: v* n! w1 R: e: {' J6 [: O(Springman et al. 1996) ....................................................................................................... 33
. n, d$ }% _9 K5 o& L# y) [/ }8 u5.3 Integral Bridges: A fundamental approach to the time-temperature loading problem5 g+ K% t& Z; z  C: W3 T7 Q
(England et al., 2000) .......................................................................................................... 36
) j' v: U! s) {1 W- p# H6.0 SETTLEMENT - Field Measurements.............................................................38
7 z3 z; W5 X% T6.1 Highways Agency Maintenance Data ..................................................................... 38% o/ T/ V: z- C( ?
6.2 Field Studies ............................................................................................................ 40
- ]8 ]* @+ [1 Y5 |5 Z0 }4 L: c( `6.3 Approach Slabs........................................................................................................ 42! b+ q) U, F0 B3 i
7.0 CONCLUSIONS...............................................................................................44
' D7 V1 z0 j1 |8 I) f# m1 B7.1 Superstructure.......................................................................................................... 44% p- o. {- e0 i+ d1 c3 W+ D
7.2 Abutment design...................................................................................................... 44
/ l# }' S: P; j& w1 q8 D) z" g& s2 |7.3 Settlement mitigation............................................................................................... 45
6 D" W- b& I6 Z2 x: i8.0 REFERENCES .................................................................................................46
6 J0 Z  v8 Y- B% A9 b9.0 ACKNOWLEDGEMENTS..............................................................................49" y+ h5 B( E6 {4 p
APPENDIX A Earth pressure coefficient definitions .............................................50
3 J9 s% Q+ }8 g$ X) k+ @( r  V
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cjcc 发表于 2011-4-8 23:36:47
本帖最后由 cjcc 于 2011-4-8 23:38 编辑
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8 K$ s, k1 R# i% w9 s7 Q" E$ KTHE 2005 – FHWA CONFERENCE 会议论文集(343Pages)
" z  Q  l6 ^6 K- m( \# L5 p' {Integral Abutment and Jointless Bridges* i: A6 p% g! W) _. s3 B8 O# D6 d
(IAJB 2005) March 16 – 18, 2005
4 H, n/ [8 l" k$ i* K6 o! WBaltimore, Maryland
) \) [  c% p; V6 M! v Proceeding.part3.rar (753.87 KB, 下载次数: 3, 售价: 1 元堡币) ! i/ o4 _+ t; ?) H/ N
Proceeding.part2.rar (2.86 MB, 下载次数: 3, 售价: 1 元堡币)
5 k  A$ r  ]2 f* k Proceeding.part1.rar (2.86 MB, 下载次数: 3, 售价: 1 元堡币) 8 i1 F* g, W, X) w4 ]1 |) k
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Session I: Current Practices with Design Guidelines and Foundation Design
1 |) e; U8 P3 |4 D$ ^; m$ KIntegral Abutment and Jointless Bridges                                                                    4 ]5 J2 s! d) N3 l8 o
V. Mistry                               35 q. X* c: x! H" s* }+ _+ `, Q6 O

& {" R- s' S9 ~Integral Abutments and Jointless Bridges (IAJB)          2004 Survey Summary          . C* m9 n6 J/ r- M% L  y" P/ z
R. Maruri, S.Petro                 12
& t8 X( I4 V: r6 s; L( ^$ I& p6 i" e
+ w" E: h7 P3 q6 FThe In-Service Behavior of Integral Abutment Bridges:  Abutment-Pile Response   
7 y* _. Q' B7 R  ZR. Frosch, M. Wenning, V. Chovichien 30
8 Z' `7 J: s/ J* ~: z5 p9 _( P6 g6 w( j
New York State Department of Transportation's Experience with Integral Abutment Bridges5 W' n8 z1 B1 z5 l, j" u0 E
A. Yannotti, S. Alampalli, H. White        412 [0 |, i9 G% h2 C4 V1 j( b+ }
4 I+ G, V& z9 S% i) c  f
Integral Abutment Design and Construction: The New England Experience             3 g( D% q- u  D
D. Conboy, E. Stoothoff                        50
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9 F( W% G4 B& n/ l4 t- eVDOT Integral Bridge Design Guidelines                                                                  7 q% w7 ~% U- j& a, H6 ]4 v4 o! [
K. Weakley                                            61
% g6 R& q  ?7 t6 ?6 e& u/ W7 g: B1 c" v
Session II: Case Studies3 ~; B" [/ l; N7 W4 x
Case Study: A Jointless Structure to Replace the Belt Parkway Bridge  Over Ocean Parkway
  h8 G# Y" ~6 V+ \' |1 m4 s S. Jayakumaran, M. Bergmann, S. Ashraf, C. Norrish 73
9 n! Y8 n5 s" u. E
: y: |; G& H3 l) H7 B! s- o9 aCase Study – Jointless Bridge Beltrami County State Aid Highway 33 Over Mississippi River in Ten Lake Township, 1 h! C& q5 @* ?
Minnesota J. Wetmore, B. Peterson                             840 }- X3 C9 a' ?7 W; l

" {$ N0 a/ V$ |7 l4 jDesign and Construction of Dual 630-foot, Jointless, Three-spanContinuous Multi-girder Bridges in St. Albans, West Virginia,
# m8 {! V: w* S+ S9 B% bUnited States, Carrying U.S. Route 60 over the Coal River6 Y" b( \! _6 E
J. Perkun, K. Michael                                                  976 G0 b# {5 t4 q9 l4 w, t7 u% J

+ y" d3 D* M2 d0 s% @8 \0 nIntegral Abutment Bridges with FRP Decks – Case Studies1 F; t# q) D7 l/ |/ z2 w* ]
V. Shekar, S. Aluri, H. GangaRao                             1137 r2 a0 J/ u  O- E: K+ ~, e0 y% |

& M  m% J/ x5 u, ?5 ZNew Mexico’s Practice and Experience in Using Continuous Spans for Jointless Bridges! z# q+ N* s; n3 s( q
S. Maberry, J. Camp, J. Bowser                            125
5 R( Q3 n( M* e. d6 Z, L: W5 }; z; I% Y
Integral Abutment Bridges – Iowa and Colorado Experience; g* T# j- ^* c9 \; e* ?( t2 X
D. Liu, R. Magliola, K. Dunker                               1366 ^7 M6 k0 W  Y/ {' p
! e6 C) Y4 R+ s
Moose Creek Bridge – Case Study of a prefabricated Integral Abutment Bridge in Canada) l$ i2 P/ T7 O
I. Husain, B. Huh, J. Low, M. McCormick                 148
( u. G5 y3 M) B' L# U/ C  y" j4 tSession III: Maintenance and Rehabilitation
( q: G: I1 U9 o! o$ k" jSession IV: Construction Practices
2 l; ^1 Q/ Z. y$ `+ p* g, YAuthor Index; a/ P# B( c4 d- K1 I8 L; g: q
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hewenlong2... 发表于 2011-4-9 10:52:38
what‘s   this  dongdong?

点评

同上,,,眼花。。。就像看到最新2010美国新规范一样的感觉,下了也看不懂。。。  发表于 2011-6-17 11:34
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greetingpi... 发表于 2011-4-16 17:57:35
一般银看不懂 this dongdong costs too much
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cjcc 发表于 2011-4-16 23:24:12
回复 greetingpine 的帖子
- _9 ^; z, i0 `; h; p6 i# m, p5 q9 q8 g0 r' q9 U  I2 s
加钱其实只是为了防止被人随便转到其他论坛上,要不我就把级别弄高点
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joppasd123... 发表于 2011-6-7 14:03:16
本帖最后由 joppasd1230895 于 2011-6-7 14:03 编辑 4 }2 J) o) `8 |$ T3 k- u
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这篇贴和 子菁版主的 美国道路桥梁深度考察报告" Z" ~, V$ H4 T. B% k

1 v3 Z$ ?  a8 M9 K联合起来看,来了解国外的桥梁设计方法。
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wilfordlee 发表于 2011-6-17 11:43:48
我觉得。。。国内很多地方的设计,虽然一部分原因是设计理念的差距,这部分差距是很大,但是另一个很重要的原因是市场的因素
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dongd 发表于 2012-3-2 11:19:13
工程投入、历史积累、理念等多方面的差距) I5 A) m" L% U  y4 @4 b1 B
有对比才有进步,取长补短。
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