Th vin ti liu CauduongBKDN - www.cauduongbkdn.com NGHIN CU NG DNG PHN MM SAP 2000-VERSION 9.x TNH TON KT CU CU DM LIN TC THI CNG C HNG. SEARCHINH THE SAP2000-VERSION 9.x SOFTWARE TO DESIGN CONTINUOUS BRIDGE (FREE CANTILEVER METHOD)SVTH: V Nh ng Khoa - 01X3A

CBHD:ThS Nguyn Lan TM TT H phn mm phn tch kt cu SAP ni ting trn th gii t nm nm 1970 v lun c cp nht cc tin b mi nht trong lnh vc phn tch v thit k kt cu. SAP2000 version 9 l version mi nht va mi du nhp vo Vit Nam. Trong phin bn ny b sung thm chc nng dnh ring cho thit k cu rt hin i. ti ny nghin cu ng dng cc tnh nng phn tch cu ca phn mm SAP2000 ver 9.x tnh ton thit k kt cu cu dm lin tc BT UST thi cng c hng. ABSTRACT The structure analysis software SAP has been famous in the world since 1970 and has been updated the newest progresses in the field of analysis and design of the structure. SAP 2000 version 9 is the newest version which has just been imported into Viet Nam. In this version, the modal just for designing modern bridges has been added. This topic studies, applies the features of bridge analysis of the software SAP 2000 version 9.x , calculates and designs the structures of Segmental bridge. 1. T VN : Kt cu cu dm BTUST lin tc thi cng c hng ang c s dng rng ri Vit Nam. Trong nhng nm qua ta xy dng hng lat kt cu cu kiu ny nh: cu sng Gianh-Qung Bnh, cu Tuyn Sn- Nng, Cu Cu Lu- Qung Nam, cu Tr khc-Qung Ngi... hu ht cc cu ny c phn tch bng phn mm RM chuyn dng ca o vi chi ph kh t (khong 1 t ng/ 1 b phn mm). Hu ht cc n v t vn nh khng kinh ph u t phn mm RM chuyn dng th khng th thit k loi cu ny. Mong mun ca tc gi l nghin cu s dng phn mm SAP2000 l phn mm ang c dng ph bin v rt d tm trong gii k s v sinh vin ngnh xy dng tnh ton thit k kt cu cu dm lin tc thi cng c hng nhm gim chi ph u t mua phn mm chuyn dng khi thit k loi cu ny. 2. GII THIU TNG QUAN CC TNH NNG PHN TCH CU CA SAP 2000 VERSION 9.x: - Kh nng pht sinh t ng cc m hnh cu : Lnh Bridge Wizard ; Temlate Model... - H tr nhiu dng phn t v lin kt: phn t thanh-Frame; tm v- Shell, khi-Solid; cable d ng lc - Tendon; Cable ch chu ko- Tension only, .... - Xt cc hiu ng thi gian co ngt, t bin , chng ro ca vt liu: Time dependent effec - Xt cc hiu ng phi tuyn hnh hc: Bin dng ln, P-delta ng dng tnh ton kt cu dy v cu dy vng theo s bin dng. - M phng kt cu thi cng theo giai on: Stage Constuctons - M phng t ng ti trng gi, ng t theo cc tiu chun khc nhau. - Thit k kt cu b tng v kt cu thp theo cc tiu chun tin tin: AASHTO, ACI, CSA,... - Kh nng tnh ton ti trng di ng rt mnh: Phn tch ng nh hng, mt nh hng, tnh ng bao ni lc nhiu loi hot ti tiu chun theo tiu chun thit k cu AASHTO. Vi cc tnh nng trn c th khai thc SAP2000 tnh ton thit k hu ht cc dng cu.

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Khoa Xy dng Cu ng - trng HBKN

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3. TRNH T TNH TON THIT K CU C HNG BNG MDUN BRIDGES WIZARD CA PHN MM SAP2000 VERSION 9.x: - Bc 1: Khai bo s cu: Vo Bridges/ Layout line. Chc nng ny cho php ta c th khai bo cc dng cu thng, cong - Bc 2: Khai bo cc lin kt gia dm v tr: Bridges/ Abutment Chc nng ny cho php chng ta khai bo cc lin kt gn vi thc t lm vic ca cu. - Bc 3: nh ngha cc tr cu: Bridges/ Bridges Column Supports. - Bc 4: nh ngha cc mt ct: Bridges/ Bridges Deck Section. Chc nng ny ta cho php ta nh ngha cc loi mt ct ca cu, nhng ch cn nh ngha cc mt ct c trng nh mt ct trn tr , mt ct trn m. - Bc 5: nh ngha s bin i tit din Bridges/ Parametric Variations. Chc nng ny cho php ta khai bo s bin i tit din ca dm t m ra tr v ngc li. - Bc 6: nh ngha i tng cu: Bridges/ Bridges Objects. Chc nng ny cho php ta c th khai bo ta cc b cp ging vi thc t lm vic. Ngoi ra n cn dng gn cc nh ngha trc . - Bc 7: Cp nht cc chc nng lin kt cu: Bridges/ Update Linked Bridge Modal. Chc nng ny cho php ta c th cp nht cc s thay i trong m hnh kt cu, chia m hnh cu ra thnh cc phn on. 4. V D NG DNG: - S liu: S cu lin tc: 52+80+52(m)

Hi ngh SV NCKH 2006

Khoa Xy dng Cu ng - trng HBKN

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Th vin ti liu CauduongBKDN - www.cauduongbkdn.com20 100 25 40 15 100 20 30 400 1,5% 33 400 1,5% 30 20 100 20 25 40 15 25 20 60 20 60 25 150 100 550 200 280 50 110 110 100

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Mt Ct trn tr v on c trn gio - M hnh ha kt cu:

M hnh ha kt cu cu lin tc bng mun Bridge Wizard trong SAP2000.V9.09: - Kt qu: Ngoi cc tnh nng khai thc kt qu ging cc phin bn c phin bn SAP2000.Ver 9 c th xut ra gi tr ng sut ti cc mt ct, iu ny s v cng thun li khi ta kim tra ng sut trong TTGHSD. Sau y l mt s kt qu phn tch trong giai on ny.

Biu bao mmen trong giai on khai thc s dng TTGHSD (KNm)

Biu lc dc trong giai on khai thc s dng TTGHSD(KN).

Hi ngh SV NCKH 2006

Khoa Xy dng Cu ng - trng HBKN

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Biu lc ct trong giai on khai thc s dng TTGHSD(KN).

Biu bao ng sut th trn.

Biu bao ng sut th di. - Nhn trn biu bao ng sut th trn v th di ta d dng kt lun c btng c m bo yu cu v ng sut pht sinh trong kt cu hay khng qua iu kin: + ng sut nn btng: n