Nghiên cứu thiết kế và chế tạo thiết bị công nghệ thi công đúc hẫng dầm cầu dây văng bê tông cốt

NGHIEN CCOJ THIET KE VA CHE TAO

THIET B! CONG NGHE THI CONG OUC HAN G

DAM CAU DAY VANG BE TONG COT THEP

PGS.TS Nguyen Phi Lan

Khoa XSy dt/ng Ciu dudng

Trudng Dai hge XSy dt/ng

KS. Nguyen VSn Bao

Ting cing ty XSy dt/ng Cdng trinh Glao thdng 1

Tdm tat: Ciu dSy vSng hidn nay dang duge sd dt/ng rpng rai tren thi gidi. TU tn/dc

din nay, thiet bj va cdng nghp thi edng due hing dim ciu dSy vSng bd tdng cot

thep a nudc ta diu do cac NhS thiu nudc ngoai dam nhpn vS cd giS thSnh cao. BSi

bSo dS di eSp din vipe nghidn cdu ky thupt, thiit ki vS chi tao thiit bi edng nghp

thi cing due hing dim eiu dSy vSng bd tdng cot thdp vS Sp dung tai cdng trinh

ciu dSy vSng Rach Mieu (Tiin Giang, Bin Tre).

Summary: Cable-stay bridges are used populariy in the worid. Equipment and

technological executing easting of cable-say bridge beam in Vietnam are supplied

by foreign contmetors with high price. The paper presents the technical research,

design and manufaetum of technical equipment for executing casting of concrete

cable-stay bridge beam in Rachmieu constmction.

I.MdoAU

Clu ddy vdng Id loai kit clu mdi cd nhilu uu dilm v l kinh t l - ky thudt nen da nhanh

ehdng dupe dp dung d Vidt Nam trong nhiing ndm gan day. K l td thdi dilm khanh thdnh cau My

Thudn ndm 2000 din nay, chdng ta dd liPn tilp xdy dung thdnh edng cdc clu ddy vdng

DakYong, eau Sdng Hdn, eau Kiln, cau Binh, clu Bdi Chdy vd hien dang trien khai cae dif an

cau Can Tho, cdu Rach Mieu.

Tuy nhidn do cd cdng nghd thi cdng phdc tap ndn hau hit cac cdng trinh cau ddy vdng da

xdy dung d nudc la deu phai can de'n tu vdn vd nhd thdu nude ngodi. Vi vdy, viec nghien edu ky

thudt, thiel bj cPng nghe nhim tdng budc liln tdi Idm chd edng nghe thi cong clu ddy vdng d

Viet Nam la mpt vdn de cdp thilt va Id mpt trong nhdng hudng uu tien cda ngdnh giao thdng.

0 nudc ta, edu day vdng dau fien dupc xdy dung vdo ndm 1976 tai Dak'rong (Quing Tri).

Trong giai doan vda qua, cung vdi sif phdt trien vd hpi nhdp cua nhieu ngdnh kinh tl , ngdnh eau

dudng nudc nhd cung cd nhdng budc phdt triln dang khich Id, trong dd cau ddy vdng dupc ddc

biet quan tdm nhu Id mpt giai phdp hpp ly vdl cac clu nhjp Idn vupt qua cac con sdng rpng. Mdt

sd cau da vd dang dupc thi cdng tai Viet Nam nhu cau My Thudn (VTnh Long), cau Kien, elu

Binh (Hai Phdng), cau Bai Chdy (Quang Ninh), cau Can Tho (Vinh Long), edu Nhdt Tdn (Hd

Npi)...

54 TAP CHf KHOA HOC CONG NGH$ XAY DUNG Sd05 - 6/2009