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N: THIT K K THUT CU TU 25.000 DWT CNG CONTAINER PHC AN I II LI CM T TNG QUAN V N Chng 1: D LIU U VO 1.1 IU KIN T NHIấN 1.1.1 a hỡnh 1.1.2 a cht cụng trỡnh 1.1.3 iu kin khớ tng 1.1.4 iu kin thy - hi 1.2 CC C TRNG TNH TON T N QUY HOCH CNG 1.2.1 Khi lng hang húa tớnh toỏn 1.2.2 Cụng ngh bc xp 1.2.2.1 i tu n cng 1.2.2.2 Phng tin bc xp SVTH: Nguyn Th Tõn - MSSV: 0751170058 Trang N: THIT K K THUT CU TU 25.000 DWT CNG CONTAINER PHC AN Chng TNH TON KT CU 3.1 Tớnh toỏn thit k sn 3.1.2 Tng quan v kt cu MAậT BAẩNG BEN Cu trỳc sn c s húa trờn hỡnh, tng hp chiu di nhp , t s gia hai cnh theo phng x(song song vi tuyn mộp bn), phng y (vuụng gúc vi tuyn mộp bn) v chiu dy sn Gi thuyt cỏc sn S1 v S3 l ng nht vi cỏc sn S1 v S3 tng ng Chiu di nhp ca sn c tớnh bng khong cỏch t tim n tim gia cỏc dm Mi sn cú b dy 0.35m v c ph bi mt lp mt (pavement) dy 0.1m Vic tớnh toỏn thit k sn phn ny ch cp n sn S1 c mụ t trờn hỡnh Tớnh toỏn thit k cỏc sn khỏc nh S1,S2, S3c thc hin tng t SVTH: Nguyn Th Tõn - MSSV: 0751170058 Trang N: THIT K K THUT CU TU 25.000 DWT CNG CONTAINER PHC AN Table 1.1.1 Dimension of the floor slabs slab S1 S2 S3 S4 Lx(m) 4.7 4.7 4.7 4.7 ly(m) 4.5 4.5 4.5 4.5 =lx/ly 1.044 1.044 1.044 1.044 Thickness (m) 0.35 0.35 0.35 0.35 3.1.2 Tớnh toỏn kim tra kh nng chu lc ca sn (performance Verified) Cỏc yờu cu c t i vi kt cu c lit kờ bng 3.1.2 di õy Trong mc ny chỳng ta s tin hnh xem xột cỏc yờu cu (performances):1,2,4,6,7,9 v 10 Yờu cu (performances 10) s 10 (tỏc ng mụi trng Environmental action) s c trỡnh by phn sau Ti trng bc xp hang húa (cn cu ray trờn bn) khụng c xem xột phn ny bi vỡ ti trng thit b ny khụng tỏc ng trc tip lờn sn cu tu (Performance khụng c xem xột phn tớnh toỏn thit k sn vỡ sn c xem l tuyt i cng theo mt phng nm ngang ú cỏc lc va v neo tu khụng cn phi xột n tớnh toỏn thit k sn) Table 1.1.2 combination of loads with load factors Performance 5-1 5-2 Limit state according to performance requirement Ultimate limit state under self-weight and overburden loads Ultimate limit state under self-weight and cargo-handling vehicle/equipment load Ultimate limit state under self-weight overburden load and berthing/ traction force Ultimate limit state under self-weight and uplift Serviceability limit state under Level 1ground motion Ultimate limit state under Level ground motion Ultimate limit state under self-weight and overburden loads Serviceability limit state under self-weight and cargohandling vehicle/equipment load Combination of loads 1.1(0.9)D+1.2(0.8)S 1.1(0.9)D+1.2(0.8)Wm 1.1(0.9)D+1.2(0.8)S+1.2(0.8)Hb 0.9(1.1)D+1.0Wu 1.0D+1.0S+1.0Wm+1.0EQ 1.1(0.9)D+1.0S+1.0Wm+1.0EQ 1.0D+1.0S 1.0D+1.0Wm Serviceability limit state under self-weight, overburden loads , and berthing/traction force 1.0D+1.0S+1.0Hb Fatigue limit state under repeated traveling of cargohandling vehicles force 1.0D+1.0Wm 10 Ensuring performance items to during design service life Environmental action SVTH: Nguyn Th Tõn - MSSV: 0751170058 Trang N: THIT K K THUT CU TU 25.000 DWT CNG CONTAINER PHC AN 3.1.3 Ti trng tỏc ng lờn sn cu tu (1) Self Weight (trng lng bn thõn) Pd =0.35x24.0 + 0.1x24.0 = 108 kN/m2 (2) Ti cht y (do hng húa) Overburden load Ps = 20 kN/m2 (3) Ti tỏc ng xe ti hang húa (Cargo- handling vehicle load) Khi mt sn lm vic hai phng chu tỏc dng ti trng xe ti, iu kin ti trng ti hn c xỏc nh nhiu xe ti cú th c xp theeo phng cnh ngn (l2) ú cỏc ti bỏnh xe ca chỳng tỏc ng theo phng cnh di (l1) SVTH: Nguyn Th Tõn - MSSV: 0751170058 Trang