土木学会舗装工学論文集第 8 巻 23 年 12 月 RC 1 2 3 4 5 6 1 239-826 3-1-1 2 239-826 3-1-1 3 3-2445 216-1 4 3-2445 216-1 5 113-24 1-17-8 6 113-24 1-17-8 RC RC 1, RC RC Key Words: RC precast slab pavement, cotter joint, airport, experimental pavement, structural design PPC 1) PPC PPC PPC 2 2) PPC RC 3) RC 183
RCRC RC 3) RC RC RC 7mm RC RC H RC RC RC RC PPC 4) 5) RC H RC C H HRC コッター継手 ラチストラス鉄筋 RC C H C RCRC 1 6) RC RC RC 184
225 枕版 25 9 45 45 RC プレキャスト版 セメント安定処理材 粒状材 65 RC プレキャスト版 枕版 ( 単位 : mm) 4493 4493 39 371.5 B 5@75=375 D 221.5 9@45=45 221.5 F 3@625 371.5 371.5 5@75=375 371.5 39 39 3@625 171.5 39 5@43 A C 559 3@1125=3375 559 E 2493 2493 2493 コッター式継手 スリップバー 171.5 高さ調整ボルト グラウト注入孔 ( 単位 : mm) (mm) (knm) A-C 75 2 B-D 75 4 C-E 1,125 4 D-F 45 - RC RC B747-4LA-1 2,PPC 25mm 25mmRC RC6 6RC4 4 31 22 3% A-C6%B-DC-E RC 14,493mm 2,493mm25mm 6N/mm 2 D13D16 75mm SD345 PPC CH 95N/mm 2 185
φ75 φ75 24 138 24 138 ( 単位 : mm) 32 58 48 R58 R43 R28 3 平面図 15 61 15 15 23 側面図 φ42 1 C 25 15 26.7 34 26.7 26.7 23 155 RC プレキャスト版敷設既設コンクリート版撤去ビニールシート敷設(継手締付け試験)キャップ取付け路盤整正枕版敷設R Cプ裏込め用グラウト材および目地用グラウト材充填レキャスト版敷設 H 継手仮締結継手締結5.5 26.25 25 26.25 R25 φ 26 2 25 31.5 4 31.5 153 51.5 4 26 51.5 26 8 4 4 5.5 13 R25 φ 26 5 ( 単位 : mm) 5 上面平面図側面図下面平面図 153 H FWD RCH 52mm 25mm K 3 37MN/m 3 RC RC 6 RC RC 2 13 RC RC RC RCH RC 5kNm4kNm 8A-C 25kNm Falling Weight Deflectometer FWDFWD RC 125mm i) 45mm 276kN 3, 1,3 186
1 5-5 H ii)fwd FWD 1152 25kN41,3, 5,1,5 iii) B747 21, 5,A-BE-F FWD 5km/h 91kN A-CC-E 151-6 35kN/mm 2.5N/mm 2 B-D -1-8 -6-4 -2 2 4 6 8 A-C 1 5-5 -1-8 -6-4 -2 2 4 6 8 C-E 15kΝm 21-6 35kN/mm 2.7N/mm 2 C H28 1,6mm 2 19N/mm 2 34kNH 8mmH 3517kN/mm 2.19N/mm 2 H H sa sy 187
2 1-1 -8-6 -4-2 2 4 6 8 6 5 4 3 2 1-2 5 1 15 3 2 35 25 4 45 B-D σ max =.19N/mm 2 25kNm H T = 1.3 1 3 σ s (1) T Nmm σ HN/mm 2 s RC FWD 1 2 3 4 H RC Westergaard RC Westergaard RC RC 5, 3, RC 1, C BD 5,.6mm1, 188
-15-1 -5 5 1 15 2 3-2 -4-6 5 1-8 15 2-1 25 276-12 -15-1 -5 5 1 15 15 2 1 3-1 1 2 3 1 5-5 -1 5 1 15 2 25 276 2 1-1 1 2 3 15 1 5 2 4 6 8 1-5 B A -1-15 D C.8mm C C C C3FEM 3 F A C 2. N/mm 2 E 189
4 2-2 -4-1 -5 5 1 D (mm).8.6.4.2 1kN 15kN 2kN 25kN 2 4 6 8 1 12 FWD 7 RC.8mm.2mm4 RCC 276kN21N/mm 2.5mm.88mm FWDD RC A-C B-D C-E D-F.891.854.762.693 3,.895.933 1,.945.951 1.58 1.15 mm A-C B-D3, 1, C-ED-F 276kN 75mm3%A-C1,125mm 6%C-E A-C 8) /{( D ) } 45 + D 2 /{( D' + D' ) 2} 1 D45 E f = (2) D' 45 45 D45, D D' 45, D' D, 225mm D 45 19
-.1 -.5.5.1 5 1 15 2 25 -.1 -.5.5.1 5 1 15 -.1 -.5.5.1 5 1 15 2 25 -.1 -.5.5.1 5 1 15 2 2 25 25 A-C 25kN 1, 9% 1,125mm6 C-E5, 75mm 96% 75mm 75mm RC 1 95 9 85 2 4 6 8 1 i) 15kNm 25kNm H 25kNm 191
ii) 75mm3H 1,125mm6 75mm iii) 1 96%48 RC RC RC RC (1) RC C5, 1,.8mmFEM 1, (2) 1, 96% RC RC 1) Sato, K., Fukute, T. and Inukai, H.: Some New Construction Methods for Prestressed Concrete Airport Pavements, 2nd International Conference on Concrete Pavement Design, pp.149-159, 1981. 2) PPCNo. 728/VI-58pp.51-6523. 3) RC No.67pp.8-1522. 4) 147p.1999. 5) 212p.22 6) RC 823 7) 257p.22 192
8) RCCP46 Vpp.128-1291991. APPLICATION OF HIGH STRENGTH RC PRECAST SLAB PAVEMENTS IN AIRPORTS Yoshitaka HACHIYA, Kazuhiro MATSUZAKI, Akihiko ITO, Hironari YAMAWAKI, Hideki TANAKA and Akihiko YOKOO Recently, concrete pavements are often adopted due to both introduction of larger aircraft and increase of aircraft operations. To deal with these situations, RC precast slab pavement using high strength concrete with cotter joint system is studied. Through the repeated loading of 1, times with B747 landing gear on the experimental pavement, the durability of both cotter joint and RC precast slab was found fully sufficient. Based on a series of studies, the applicability of high strength RC precast slab pavement in airports was verified. 193