Cable-stayed bridge vs Suspension bridge

Trng i hc Giao thng vn ti.

Lp: a k thut cng trnh giao thng-K50.

Bi tp ting anh(nhm 4)

Nhm thc hin:

L Vn Kiu

Nguyn Tin Linh

Phm Quyt Thng

Ninh Vn Tip

Nguyn c Ha

Nguyn nh Khoi

TEXT TRANSLATION:

Cable-stayed bridge vs Suspension bridge.(Cu dy vng v cu treo)

The cable-stayed bridge is becoming very popular, being used where previously a suspension bridge might have been chosen.Very large spans have been built, for example-Tatara, Hirosima, Japan, 2919 feet, Pont de Normandie, France, 2808 feet, Quingzhou Minjang, China, 1984 feet.What are the reasons for the popularity of the cable-stayed bridge? Lets look at an imaginary suspension bridge, and an imaginary cable-stayed bridge, shown in the diagrams below. We can list the main parts of each type of bridge:Suspension bridge

Cable-stayed bridge

Two towers

Two towers

Suspended structure

Suspended structure

Two main cables

Many hanger cables

Many inclined cables

Two terminal piers

Two terminal piers

Four anchorages

Both types of bridge have two towers and a suspended deck structure. Whether the towers are equivalent may become apparent. There is a difference in the deck structures. The deck of a suspension bridge merely hangs from the suspenders, and has only to resist bending and torsion caused by live loads and aerodynamic forces.The cable-stayed deck is in compression, pulled toward the towers, and has to be stiff at all stages of contruction and use. A great advantage of the cable-stayed bridge is that it is essentialy made up of cantilevers, and can be structured by building out from the towers. Not so a suspension bridge . Once the towers have been completed, steel cables have to be strung across the entire length of the bridge. These are used to support the spinning mechanism, have been used since the time of Roebling and the Brookyl bridge, which takes thousands of strands of steel wire across the bridge.Because the cables-stayed bridge is well-ballanced, the terminal piers have little to do for the bridge except hold the ends in place and balance the live loads, which may be upwar or downward, depending on the positions of the loads. A suspension bridge has terminal piers too, unless the ends are joined directly to the banks of the river. The cables often pass over these piers and then down into the ground, where they are anchored, and so the piers have to redirect the tension. The four anchorages of a suspension bridge have to withstand the tension of the four cable-ends, and are often massive constructions. If the bridge is built on difficutl ground, as in the case of the Humber bridge, the anchorage can present a featsome problem.The deck of a suspension bridge is usually suspended by vertical hangers, though, some bridge, following the example of the Seven bridge, use inclied ones to increase stability. But the structure is essentialy flexible, and great effort must be made to withstand the effects of traffic and wind. If, for example, there is a daily flow of traffic acroos a bridge to a large city on one side, the live load can be asymmetrical, with more traffic on one side in the morning, and more traffic on the orther side in the evening. This produces a periodic torsion, and the bridge needs to be strong enough to resist the possible effects of fatigue.Cu dy vng ang ngy cng tr nn ph bin v ang c s dng nhng ni m trc y cu treo c dng.Rt nhiu nhp cu ln hin ang c xy dng nh cu Tatara Hirosima Nht Bn cao 2919 feet, cu Pont de Normandie Php cao 2808 feet, cu Quingzhou Mijang Trung Quc cao 1984 feet.L do cu dy vng tr nn ph bin l g ? hy cng xem xt mt cy cu treo tng tng, v mt cy cu dy vng tng tng, th hin trn biu di y. Chng ta c th lit k nhng phn chnh ca mi loi cu:Cu treo

Cu dy vng

Hai thp

Hai thp

Cu trc treo

Cu trc treo

Hai cp chnh

Nhiu cp treo dc

Nhiu cp treo xin

Hai tr bin

Hai tr bin

Bn im neo

C 2 loi cu u c 2 thp v cu trc sn treo.Liu rng cc thp l tng ng c th tr nn r rng nhng c s khc bit trong kt cu sn. Sn ca mt cy cu treo ch treo t dy treo v ch phi chu lc un cong v lc xon gy ra bi ti trng ng v lc ca kh ng lc. Sn ca cu dy vng th b nn, ko v pha thp v phi rt l chc chn trong tt c cc giai on thi cng v s dng.Mt li ch ln ca cu dy vng l n c lm t dm hng v c th c xy dng ra t cc thp cn cu treo th khng. Mt khi cc thp c hon thnh, nhng si cp thp phi c cng trn ton b chiu di cy cu. Chng c s dng h tr c ch quay m c s dng t thi xy dng cu Roebling v cu Brookyl tn hng ngn b dy thp bc qua cu.Bi v vy cu dy vng t c cn bng tt,nhng ci tr bin khng c tc dng g nhiu i vi cy cu ngoi tr tc dng gi cho hai u cu cn bng v ti trng,ti trng c th nghing v pha trn hay v pha di ty thuc vo v tr ti trng. Cu treo cng c cc tr bin, tr khi cc u cu c ni trc tip ti b sng.Dy cp thng qun qua cc tr bin sau i su xung lng t ch gi l im neo v v vy tr phi c chnh li lc cng. Bn im neo ca cu treo phi chu c lc cng ca bn u dy cp v cng trnh s. Nu cu xy dng trn nhng nn t phc tp nh trng hp ca cu Humber th im neo qu l mt vn ng ngi.Sn ca cu treo thng c treo dc v treo ngang mt s cu nh cu Seven li s dng dy cp xin tng s n nh ca n. Nhng cu trc ht sc cn thit ca cu ny l phi linh hot v chng c cc tc ng ca gi, phng tin giao thng v d nh mt lng phng tin giao thng qua cu n mt thnh ph ln u bn kia, ti trng c th khng i xng, vi lu lng giao thng nhiu hn mt u vo bui sng v mt lng giao thng nhiu hn mt u khc vo bui ti. iu ny gy ra lc xon chu k do cy cu cn phi khe chng chu nh hng ca s mt mi.

SENTENCE TRANSLATION:1. A cable-stayed bridge is a bridge that consists of one or more columns with cables supporting the bridge deck.

Mt cy cu dy vng l mt loi cu bao gm mt hoc nhiu ct vi dy cp h tr cc sn cu.

2. A suspension bridge is a type of bridge in which the deck is hung below suspension cables on vertical suspender.

Mt cy cu treo l mt loi cu, m c sn dc di y cp treo trn treo thng ng.3. Cable-stayed bridges have the longest spans of any type of bridge.

Cy cu dy vng l cu c nhp di nht trong cc loi cu.4. Suspension bridges have the second-longest spans of the types of bridge.

Cu treo c nhp di th hai trong cc loi cu.5 Cable-stayed bridges may look similar to suspensions bridges.

Cy cu dy vng c th trng ging nh cy cu treo.6. The two bridges support the load of the roadway in very different ways.

Hai cu ny nng ti trng ca ng theo nhng cch rt khc nhau.7. In suspension bridges, the cables ride ride freely across the towers, transmitting the load to the anchorages at either end

cu treo, dy cp treo mt cch t do trn khp cc thp, truyn ti n hoc neo cui ...8. In cable-stayed bridges,the cables are attached to the towers, which alone bear the load

Cu dy vng, cc dy cp c gn vo thp, m mt mnh n gnh chu ti trng.9. Suspension bridges also tend to be the most expensive to build.

Cu treo cng c xu hng tr thnh cu c chi ph xy dng t nht10. Span is the distance between two supports of a bridge.

Nhp cu l khong cch gia hai ct chng ca mt cy cu.11. Suspension bridge is a bridge is supported by cables that are usually hung from towers.

Cu treo l mt cy cu c h tr bng cp m thng c treo trn thp.12. Cantilever is a type of structure in which a horizontal beam extends beyond its support.

Dm hng l mt loi cu trc, trong 1 dm pha trn tri rng theo chiu ngang nng .13. Deck is the roadway of trafficbearing surface of a bridge.

Sn cu chnh l con ng -l b mt chu lc ca mt cy cu.14. Anchorage is the terminal support, usually a huge block of concrete, for the main cables of a suspension bridge.

im neo l im nng bin, thng l mt khi b tng ln, treo cc loi cp chnh ca cu treo.15. Stay is a cable that runs at diagonal from the main supporting cable to the deck of a suspension bridge.

Dy neo l mt dy cp chy theo ng cho t cp chnh nng sn ca mt cu treo.16. Cantilever is a horizontal member fixed at one end and free at the other.

Dm hng l mt cu kin nm ngang c nh mt u v mt u t do.17. Cable stayed bridge is a bridge whose deck is directly supported from pylons by straight cables without vertical suspenders.

Cu dy vng l mt cy cu m sn cu h tr trc tip gi treo cp bi y cp thng.18. Pier is the support between two bridge spans, usually arches.

Tr cu nng gia hai nhp cu, thng l vm.19. Suspender is the vertical or zigzag element on suspension bridges that links a cable with a deck.

Dy cp treo c th thng hoc ngon ngoo trn cu treo m n lin kt cp vi sn cu.20. Tower is the vertical element in suspension bridges from which cables are hung.

Thp c hnh thng ng cu treo t cp treo.21. Suspension bridges are able to span great distances of 4,000 feet to 6,527 feet.

Cu dy treo c kh nng bc qua khong cch ln t 4000 fit n 6527 fit.

22. Building a suspension bridge is a time-consuming and often dangerous process.

Vic xy dng cu treo l mt qu trnh tn nhiu thi gian v gy nhiu nguy him.

23. The capble-stayed bridge is becoming very popular, being used where previously a suspension bridge might have been chosen.

Cu dy vng ang tr nn ph bin, ang c s dng nhng ni m trc y cu treo c la chn.

VOCABULARY:

1. Span: nhp cu.

2. Hanger cable: dy cp treo.

3. Inclined cable: dy cp xin.

4. Structure: Kt cu.

5. Cantilever: dm hng.

6. Steel cables: cp thp.

7. The end: u cu.

8. Anchorage: im neo.

9. Cable: dy cp.

10. Cable-stayed: cu dy vng.

11. Deck: mt cu.

12. Pier: mng cu.

13. Suspender: dy treo.

14. Tower: thp.

15. Suspension bridge: cu treo.

16. Bending: lc cong.

17. Load: ti trng.

18. Tension: lc cong.

19. Compress: p, nn.

20. Flexible: mm do.

21. Stiff: cng.

22. Strand: b.

23. Pull: ko.

24. Terminal pier: tr bin.

25. Strung: treo.

26. Periodic: chu k.

27. Ground: t.

28. Resist: chu ng.

29. Blance: cn bng.

30. Main cable: cp chnh.

(3) SENTENCE TRANSLTATION:1. A cable-stayed bridge, one of the most modern bridges, consists of a continuous strong beam with one or more pillars or towers in the middle.

Cu dy vng, mt trong nhng cy cu hin i nht, bao gm mt dm cu ln lin tc vi mt hay nhiu ct hay thp gia.

2. Cables stretch diagonally between these pillars or towers and the beam.

Cc dy cp tri di cho qua cc ct hay thp v dm cu.

3. Although a cable-stayed bridge may look like a suspension bridge at first glance, it carries the load of the roadway in a different way

Mc d nhn thong qua cu dy vng ging cu treo, nhng n mang ti trng ca mt cu theo mt cch khc.

4. While the cables of a suspension bridge carry its load, the pillars carry the load in a cable-stayed bridge.

Khi cc dy cp ca cu treo chu ti trng ca n, th cc ct chu ti trng ca cu dy vng.

5. A cable-stayed bridge is a bridge that consists of one or more columns with cables supporting the bridge deck.

Cu dy vng l loi cu m bao gm mt hay nhiu ct vi cc dy cp h tr sn cu.

6. A suspension bridge is a type of bridge in which the deck is hung below suspension cables on vertical suspenders.

Cu treo l mt loi cu m sn cu c treo di cc cp treo trn cc dy treo thng ng.

7. Suspension bridges have the longest spans of any type of bridge.

Cu treo c cc nhp cu di nht trong tt c cc loi cu.

8. Cable-stayed bridges may look similar to suspension bridges.

Cu dy vng c th trng ging nh cu treo.

9. The two bridges support the load of the roadway in very different ways.

Hai loi cu h tr ti trng ca mt cu theo nhiu cch rt khc nhau.

10. In cable-stayed bridge, the cables are attached to the towers, which alone bear the load.

cu dy vng, cc dy cp nh km vi cc thp m mang ti trng mt mnh.

11. Suspension bridges also tend to be the most expensive to build.

Cu treo cng c xu hng tr nn tn km khi xy.

12. Span is the distance between two supports of a bridge.

Nhp cu l khong cch gia hai im ca mt cy cu.

13. Deck is a roadway of traffic-bearing surface of bridge.

Mt cu l mt ng cao tc trn b mt ca cu.

14. Cantilever is a type of structure in which a horizontal beam extends beyond its support.

Dm hng l mt loi cu trc m mt dm ngang ko di ra khi tm h tr ca n.

15. Anchorage is the terminal support, usually a huge block of concrete, for the main cables of a suspension bridge.

im neo l im h tr bin, thng l mt khi xi mng ln, cho cc dy cp chnh ca cu treo.16. Pier is the support between two bridge spans, usually arches.

Tr l im h tr gia hai nhp cu, thng nhng hnh cung.

17. Tower is the vertical element in suspension bridges from which cables are hung.

Thp l b phn thng ng trong cu treo m t cc dy cp c treo ln.

18. The terminal piers hold the ends in place and balance the live loads.

Tr bin c gi ti cc im nt v cn bng ti trng ng.

19. The deck of a suspension bridge is usually suspended by vertical hangers.

Sn cu ca cu treo thng c treo bi cc dy treo thng ng.

20. Cantilever is a horizontal member fixed at one end and free at the other.

Dm hng l thnh phn nm ngang to bi mt u c nh cn u kia l lng t do.

Class: Cu ng St-K50

Group 4:

1. V Linh ( Leader )

2. Nguyn nh L

3. Nguyn Vn Long

4. Mai Duy Minh

5. V c Minh

6. ng Th Minh

7. Nguyn Tt Mnh

8. ng Vn Ninh

9. Trn Hu Nguyn

10. Khng Trung Ph

(2) VOCABULARY UNIT 4

cable-stayed bridgecu dy vng

suspension bridgecu treo

spannhp cu

imaginarytng tng, khng c thc

diagrambng biu

suspendtreo ln

suspenderdy treo

cabledy cp

hangtreo

inclinenghing, dc

terminalsau cng

piertr cu

anchorageim neo

decksn cu

equivalenttng ng

merelych

resistkhng li

bendcong xung, lm cong

torsion( s ) xon

loadti trng

aerodynamic forcelc kh ng lc

compressionlc nn

pullko

stiffcng

essentiallycn thit

cantileverdm hng

steelthp

entireton b

standb

supporth tr

depend (on)ph thuc ( vo )

unlesstr khi

groundmt t

withstandchu ng, khng li

tensionlc cng

massive s

fearsomerc ri

vertical hangerdy treo thng ng

stabilitytnh n nh

flexiblelinh hot

asymmetricalkhng i xng

periodicchu k

towerthp

mechanismmy mc, c cu, c ch

effectnh hng

apparentr rng, thy r ra ngoi

balancethng bng, s cn bng

spinquay trn

fatiguegim sc chu ng ca kim loi, s mi

forcesc mnh, lc

advantages thun li, li th