修正圧縮場理論とファイバーモデルを 併用した鉄筋コンクリート梁の
Contents
1. 6 EE 22. 26 27 o 1 2
3. 2 z N mm 6 12 1 case3 f N mm SD345 SD295 s 200mm mm 300 Xx 150 mm 400 a case1 b case2 c case3 rx1000 13
4. MM rt N mm 9 80 M1 Vs kN 0 20 40 60 80 V kN a 125 400 100 Vs kN 0 20 40 60 80 100 V kN b 175 400 21 25 e 125 150 2 4 175 1 5 1 A 0 5 0 1 1 1 1 1 1 00 05 10 15 20 25 30 35 22
5. 123 400 175 400 3 19 123mm 175mm Co ColoOo1 3 20
6. NR _ Collins RC RC 2 2 1 Collins RC
7. VMmm a 7 N mm on 1 10 12 ww a w 1 1 2 25 3 35 4 45 5 7x1000 a 125 400 1 w 2 25 3 35 4 45 5 x1000 b 175 400 0 05 1 15 19 Vs Vs Ve Vs V 20
8. Tension Stiffening Vecchio amp Collins 2 m 1 11 1 2 1 J500g g 11 12 9 a b 4 5 2 4 6
9. E jimit analysis J E truss analogy RC RC
10. 47 14 15 MV 4 LM 2 oe 14 A dcr 15 0 2 sO siX 14 x 15 77 16 16 1 eg x 2 17 Se ke 17 3
11. 7 4 12 a b c 6 RC a 5 lt 7 M M 8 h sa 18 elx x eo Y 19 2 20 N pr EdA 4 20 2
12. 4 3 19 22 1 5 1 5
13. 7 14 15 1 2 1 RC 3
14. RC 1 Mohr Mohr RC 3 6 10 2 2
15. 10 21 21 4 RC 12 9 22 9 23 24
16. 1985 13 14 M P Collins The Shear Strength of Reinforce Concrete Win RC No 620 V 43 pp71 81 1999 Structures Japan Concrete Institute Convention 1995 15 Nonlinear Analysis of Reinforced Concrete Beam By Modified Compression Field Theory Combined With Fiber Model Satoshi GOMYO This paper aims at grasping of the nonlinear behavior of reinforced concrete by experiments and analyses The program combining both of the Modified Compression Field Theory for the shear analysis and the Fiber Model for the flexural analysis is constructed Focusing on the interaction of a bending moment and focusing on shearing force influence of bending moment is especially taken into consideration to MCFT as the equivalent axial force calculated from fiber strains Next the experimental studies by RC beams were conducted and compared with analytical results It is found that the effect of the bending moment on the shear behavior is clarified and that the proposed program is very useful tool f
17. 45 lt f 26 KF ng cot 27 5 5 c g 2 21 a 123 400 21 b 173 400 3 21
18. 13
19. CCD 14 NW 1 1995 2 10
20. Walraven Vecchio amp Collins C w 7 max ek 4 0 18 Tei a 5 0 3 C_ 16 max 2 2 4 Collins 6 8 6 7 Ff u 2 4 8 7 3 2 3 1 3 12 3 RC
21. Re Popovics NN 7 4 a 1 i nk rE Ecc n 0 8 em 6 17 k 0 67 mr ne 3 62 ge ax 1 2 2 12 2 2 o c oie ns 1 nl 1 os 03 A cc 3
22. Step1 Step2 Step3 MV Step4 amp Step5 Step6 w 07 a Step8 Step9 V 2 Step10 Step11 Step12 No 4 Step13 g Sn No Step15 Yes R Step16 g Step17 Step18 NN No Step19 Yes Step20 9 5 12 22 Opear dx 23 9 Opear 0 ex 24 0 10
23. o 13 4 jm Ta tan oy sb 5 RC g 13 RC RC s 9 3 W 10 9 1 Sg 10 2 9 sin cos 0 mx my Sx Sp 10 S 5S Collins CEB FIP Model Code 1990 2 1 10
24. 1999 3 3 12 12 13 2002 3 4 RC No 490 V 23 pp157 166 1997 5 1993 10 6 Shigehiko SAITO and Hiroshi HIKOSAKA Numerical Analyses of Reinforced Concrete Structure Using Spring Network Models 7 Collins MP and Mitchell D Pre stressed Concrete Structure Prentice Hall 1991 8 Vecchio F J and Collins MP The Modified Compression Field Theory for Reinforced Concrete Element Subjected to Shear ACT Journal Vol 83 No 2 Mar Apr 1986 pp 219 231 9 Collins MP Response 2000 Manual Response 2000 http Www ecf utoronto ca bentz r2k htm 10 COMITE EURO INTERNATIONAL DU BETON CEB FIP MODEL CODE 1990 11 Windows ROOF 12
25. 1 b 15 6 RC 4 1 H RC 6 1 RC 300kN 1 150 X200mm 1200mm RC 16 3
26. 8 125 400 123 475 175 400 3 175 475 3 8 10 15 10 14 30 15 14 SS 8 12 3 125150 175 175 000175 000243 000165 5 pi6 5p6 75 14 000215 000162 000180 00192 00227 00230 0236 0270 0340 6 0 me 125 400 400 2 31 1 0338 475 175 550 550 3 18 1 1
27. z Me
28. 15 b 14 3 1 15 a 5
29. 2 RC RC 11 1 1 RC x 18 19 8 g
30. 9 200 7 10094 400 1 T150 i 16 175 kN mm kN mm Pcr O OR Pmax 8 OR 150 550 150 0450 0490 1195 855 861 175 475 1 0470 1277 175 475 2 0420 0490 124 7 17 175 475 3 0390 0390 130 2 682 657 175 550 0620 116 4 11 30 1100 9 12 9 shear 0 2 4 6 8 10 0 2 4 6 8 10 9 mm 9 mm a 125 400 c 175 400 0 2 4 6 8 10 0 2 4 6 8 10 9 mm 9 mm b 125 475 d 175 475 18 8 I kN Pmax Pmax 0 7 7 4 Olo ol oImn oo ol ol olr
31. 17 4 D16 SD345 D6 SD295 5 14 g d 15 13 6 2 125mm 150mm 175mm 7 6 2 1 18 4
32. 1 12 MCFT MCFT RC Keyword Reinforced Concrete Beam Modified Compression Field Theory Fiber Model shear behavior shear deformation flexure deformation 1 RO
33. 6 2 5 Ao FE 2 2 15 R 1 S 0 5 1 0 0 1 2 3 4 7x1000 a N mm 20 40 60 80 100 V kN b E 2 R RS 0 20 40 60 80 100 50 V kN c 3 0 N mm 4 oi N mm d 14 7 12 2 kN m ss m OO 6120 200 0290 0360 1 0 18P 2 082 10281 0694 1 156 1619 a
34. Step 9 A N odd X40 Ng 4 M vd4 4 T X Ne yy Vy V Step19 4 11 P Y Y Vy M 4 4 9 7 9 h 4 4 Oy 12 5 1 2 1 z 25 VY 25
35. lre Co1Oo nl ol 175 475 2 175 475 3 NN gt Eo almlol or Ah EEHEHESESE 1 I1 1 Oo1 19o I PIO OI SI 1 OOoOI 1oo1 oo1 16 1 lool 1O IND 1961 DEIR KE ole bs lol olre gt MIP 8 9 2 4 0 6 0 054 0 055 2 a b c d 5
36. or reinforced concrete beams under flexural and shear force
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