Seminar on Bridge Design Specification

Seminar on Bridge Design Specification

Tiu chun thit k cu Vit nam Hi tho v Tiu chun thit k cu Ts Stuart Davis GS TS Dao Xuan Lam PGS.PTS Nguyen Viet Trung Cc tI liu gc

Tiu chun thit k cu AASHTO LRFD, 1998 22 TCN 18 - 1979 TCVN 2737 - 1995 22 TCN 221 - 1995 TCVN 5664 - 1992

Tiu chun thit k cu AustRoads, 1992 BS 5400, 1978 Tiu chun cu Ontario, 1991 Cc ni dung chnh

Cc yu cu chung Cc tI trng Phn tch B tng Thp Mt cu Mng Kt cu bn di Kt cu chn ngm

Lan can,Ro chn Khe bin dng & Gi cu Nguyn tc bin son Phn giI thch ca AASHTO c lc b Cc tham chiu n AASHTO c lc b Cc Ph lc ca AASHTO c lc b Tng thch vi Tiu chun thit k

ng Tng thch vi Tiu chun thi cng Cc tham chiu n AASHTO & ASTM v vt liu c gia nguyn Phn 2: B tr chung v chn v tr cu Cc kh gii hn ng - tng thch vi Tiu chun thit k ng Thng thuyn (TCVN 5664 -1992) - mc nc 20 nm ng st (TCN 18 - 1979) - ch cho kh

ng 1m Phn 2: B tr chung v chn v tr cu Thu vn & Thu lc L thit k Khu thot nc - 100 hay 50 nm Thit k cu - 100 nm Kim tra xi - 500 nm Phn 3: TI trng v h s tI trng Nguyn tc chung

Cc t hp tI trng - c n gin ho Tui th thit k - 100 nm Phn 3: TI trng v h s tI trng Hot ti Xe tI thit k HL-93 cng v tI trng ln 0.9t/m hay Xe hai trc 22t 0.9t/m cng v tI

trng ln 0.9t/m Phn 3: TI trng v h s tI trng Hot ti Xe tI thit k HL-93 Phn 3: TI trng v h s tI trng Hot ti Xe tI

thit k HL-93 so vi HS20-44 Phn 3: TI trng v h s tI trng Hot ti H s tI trng H s xung kch 1.33 H s ln xe 1.20 Tng cng cho 1 ln

1.75 2.79 Phn 3: TI trng v h s tI trng TI trng gi Tc /p lc gi ca AASHTO khng ph hp TCVN 2737 da trn chu k 20 nm Cc h s hiu chnh ca TCVN 2737 , OK Cc h s tI trng ca AASHTO , OK

Cc h s ko ca AustRoads/BS5400 Phn 3: TI trng v h s tI trng TI trng gi Vng I II III IV Tc (m/s) 38

45 53 59 Phn 3: TI trng v h s tI trng TI trng ng t AASHTO dng bn cc h s gia tc 22 TCN - 221 - 1995 dng lc tnh tng ng v bn vng ng t Quy chuan XDVN cng dng bn vng ng t Cn lp bn h s gia tc ca Vit

nam Quy chun xy dng Vit nam Bn vng ng dt MSK 8 MSK 7 MSK 6 MSK 5

Tiu chun thit k cu Vit nam Bn gia tc dng tm thi ( min Bc) A<6 6 < A < 12 12 < A < 24 Tiu chun

thit k cu Vit nam Bn gia tc dng tm thi ( min Nam) A<6 6 < A < 12 12 < A < 24 Phn 3: TI trng v h s tI trng

TI trng nhit Nhit ca AASHTO khng ph hp Nhit khng kh: min Bc: 0 to +45oC min Nam: +5 to +45oC Nhit cu c ly ph thuc Chnh lch nhit ly theo AASHTO/AustRoads Phn 3: TI trng v h s tI trng Va tu thuyn

Phn 3: TI trng v h s tI trng TI trng va tu thuyn Tu thu thit k: Cp ca ng sng I II III IV V VI

Tu thul (DWT) 2000 1000 300 200 100 40 X lan (DWT) 500 500

400 400 100 100 Phn 3: TI trng v h s tI trng TI trng va tu thuyn Cc tc va x: Tu > 1000 DWT Tu < 1000 DWT X lan

3.3 m/s + Vs 2.5 m/s + Vs 1.6 m/s + Vs Phn 3: TI trng v h s tI trng TI trng va tu thuyn Cc lc va (Vs = 0.5 m/s): Cp ng thu I II III

IV V VI Lc (t) 2040 1440 630 630 360 280

Nguyn tc bin son

Cc yu cu chung Cc tI trng Phn tch B tng Thp Mt cu Mng Kt cu bn di Kt cu chn ngm Lan can,Ro chn Khe co dn & Gi cu Khng thay

i ln so vi AASHTO Phn 10 Mng Tiu chun thit k mi: p dng phng php thiy k theo h s tI trng S dng rng rI cc th nghim hin tr ng Phn 13

Lan can Ro chn th nghim va xe thc ca AASHTO khng ph hp 7 mc ca AASHTO c gim cn 5 Cc mc lc: 6t n 55t Chiu cao: 810mm n 1370mm Cc phn bt buc v cc phn tu chn Dng thut ng: shall - yu cu should - khuyn co preference

may - c th La chn ca Ch Cng trnh (hoc yu cu chp thun): V d - cc ch tiu lc va

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