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OF EXTRADOSED BRIDGES AKIO KASUGA SUMITOMO MITSUI CONSTRUCTION - PDF document

Nov 18, 2023 •661 likes •1.01k views

BIRTH, DEVELOPMENT AND FUTURE OF EXTRADOSED BRIDGES AKIO KASUGA SUMITOMO MITSUI CONSTRUCTION JAPAN Birth 1 Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Mathivats Paper (FIP Note,1988) Seminar in BUT /

  1. BIRTH, DEVELOPMENT AND FUTURE OF EXTRADOSED BRIDGES AKIO KASUGA SUMITOMO MITSUI CONSTRUCTION JAPAN Birth 1

  2. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Mathivat’s Paper (FIP Note,1988) Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Span Length VS Average Depth of Concrete 2

  3. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Span Length VS Tendon Weight Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Cost Comparison ■ エクストラドーズド橋 ▲ 斜張橋 ◆ 箱桁橋 3

  4. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Odawara Blueway Bridge (1994) Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Development of Saddle & Extradosed Cable System ✓ No saddle system was available. ✓ New saddle system fixed at both ends was developed. ✓ Epoxy coated strand was used as extradosed cables. 4

  5. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Development of High Damping Rubber Damper ✓ After Odawara, HDR damper was widely used all over the world. HDR Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Development of High Damping Rubber Damper LD w/o Damper (LD = 0.002) LD : Logarithmic Decrement LD max w/ Dampers 1st Mode (2.57Hz, LD = 0.068) k opt k 2nd Mode (5.14Hz, LD = 0.062) 3rd Mode (7.71Hz, LD = 0.061) 5

  6. Development Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Tsukuhara Bridge (1997) 6

  7. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Fretting Fatigue Test of Saddle Δϭ ≤ 50N/mm 2 Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Ibigawa Bridge (2001) 7

  8. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Construction of Ibigawa Bridge Segment （ 400 ｔ） Fabrication Yard （ 100,000m 2 ） Lifting of Stell Girder （ 2000 ｔ） Lifting Traveler Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Shin-Meisei Bridge (2004) 8

  9. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Development of Steel Box Anchorage for Pylon Concrete after Completion Horizontal Tension ： Steel Vertical Compression ： Steel & Concrete Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Himi Bridge (2004, Corrugated Steel Web) 9

  10. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Stay Cable Anchorage in Girder Steel Diaphragm of Himi Bridge for Corrugated Steel Web 4000 2225 8500 2225 12950 Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Half Size Model Test Loading Extradosed Cable Girder Bearing Bram 10

  11. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Test Results 3500 3000 LOAD (kN) 2500 2000 1500 Non-linear 2D Frame Analysis 1000 Non-linear 3D FEM Analysis 500 Test Results 0 0 50 100 150 200 250 300 350 DISPLACEMENT (mm) Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Fudo Bridge (2010, Composite Truss) 11

  12. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Test for Truss Connection (Half Size) 斜材張力 Stay Cable Force 反 3700 3400 300 500 425 力 引張材 圧縮材 1425 Tension Compression 1000 壁 1232 1422 1000 2873 1160 載荷荷重 Horizontal Force 2000 スライドレール 図 実験供試体構造図 Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Perforated Dowell Connection 600 圧縮側 引張側 Compression Member Tension Member 計算値 Rotational 500 回転バネ Spring Rib Plate 十字リブ 2500kNm/rad (2500kNm/rad) 水平載荷荷重 (kN) Horizontal Load (kN) Concrete Dowel 孔あき鋼板ジベル 400 Rigid Connection 計算値 剛結 Spiral Bar スパイラル筋 300 200 コンクリート 充填部 100 0 -60 -50 -40 -30 -20 -10 0 曲げモーメント (kN･m) Secondary Bending Moment (kNm) 12

  13. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Re-bar Connection Compression Member 700 引張側 圧縮側 Tension Member Nut ナット 計算値 Rotational 600 定着プレート Bearing Plate 回転バネ Spring (1000kNm/rad) 1000kNm/rad 水平載荷荷重 (kN) 500 Re-bar ねじふし鉄筋 Horizontal Load (kN) 400 計算値 剛結 Rigid Connection Nut ナット 300 コンクリート 充填部 200 100 0 -60 -50 -40 -30 -20 -10 0 Secondary Bending Moment (kNm) 鋼管曲げモーメント (kN･m) Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION EDB with Composite Truss Girder 13

  14. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION EDB with Composite Truss Girder Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION EDB with Composite Truss Girder 14

  15. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Axial Forces in Truss Bridge Type Axial Force (A) Girder Bridge (max.span : 43m) 1380kN Average thickness of concrete t=370mm (B) Extradosed Bridge (max.span : 120m) 1590kN Average thickness of concrete t=440mm Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Axial Forces in Truss Bridge Type Axial Force (C) Extradosed Bridge (max.span : 250m) 1420kN Composite truss can make Average thickness of concrete t=670mm axial forces constant in all (D) Cable Stayed Bridge (max.span : 320m) span range! 1590kN Average thickness of concrete t=380mm 15

  16. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Mukogawa Bridge (2016) Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Mukogawa Bridge (2016) 16

  17. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Structural Behavior of Butterfly Web Bridge ✓ Structural Behavior of Butterfly Web = Double Warren Truss Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Construction of Mukogawa Bridge 17

  18. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Effects of the Extradosed Structure with Butterfly Webs Basic design (101 segments) 15 segments for cantilever erection 14 segments for cantilever erection Detail design (54 segments) 8 segments for cantilever erection 8 segments for cantilever erection ✓ Number of days required for cantilever construction reduced. ✓ The weight of superstructure was reduced up to 20% from the basic design. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Effects of the Extradosed Structure with Butterfly Webs ✓ Total weight of super- and sub-structures was reduced by about 35%. D ≦ 5.0m Basic design P4 P3 P2 P1 Longitudinal Transverse Natural period (temporary) (temporary) Basic plan (s) 1.59 2.90 Detail design (s) 2.29 3.82 Detail design 18

  19. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Effects of the Extradosed Structure with Butterfly Webs Improved seismic performance 9.0 2.5E+06 Basic design Basic design Basic plan Basic plan 8.0 Detail design Detail design 2.0E+06 7.0 6.0 ･ m) EI/h 1.5E+06 5.0 M(kN 4.0 1.0E+06 3.0 2.0 5.0E+05 1.0 0.0E+00 0.0 P4 P3 P2 P1 P4 P3 P2 P1 （※） Ratio of each pier w ith P3 as 1.0 Ratios of flexural rigidity (EI) Bending moment at the bottom to height (h) of the piers of the piers Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Construction of Piers 2.0m 19

  20. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Construction of Superstructure Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Tower Detail 20

  21. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Mukogawa Bridge Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Specifications for CSB & EDB by JPCI (2009) (2012) 21

  22. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Allowable Stress of Stay Cables f pa f pa Strand System Strand System Wire System Wire System 0.6 f pu 0.6 f pu 0.4 f pu 0.4 f pu 70 70 100 100 130 130 Δσ L (N/mm 2 ) Δσ L (N/mm 2 ) Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION EDBs have been extended after Odawara 22

  23. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION US Mission for EDB Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Development of Cable Stay Anchorage (Concrete Type) 3000 Bar φ32mm 1750 2000 3000 23

  24. Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Development of Cable Stay Anchorage (Single Steel Plate Type) 3400 1450 Bar φ32mm Steel plate t=100mm 1300 鉄筋ジベル D25 625 Seminar in BUT / Budapest / 19 September 2019 SUMITOMO MISTUI CONSTRUCTION Development of Cable Stay Anchorage (Double Steel Plate Type) Steel plate t=40mm 1365 860 1365 2000 Re-bar D25 1000 3590 24

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