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"anchorages" - 3 õppematerjali

Rippsild
16
docx

Rippsild

Selleks kasutatakse tavaliselt trosse või kette (algselt kasutati nööri ja teisi materjale), mis tõmmatakse pinge all üle takistuse ning ankurdatakse maasse. Lisaks on olemas ka teine rippsilla tüüp ­ iseankurduv rippsild, mille puhul peatrossid kinnitatakse peatalade külge. Antud tüüpi rippsildu on suhteliselt vähe ehitatud (Silla ehitamine 2009). Rippsilla peamised osad (joonis 1) on: Tugipostid ehk püloonid (towers), mille ülesandeks on hoida trossi üleval. Ankrud (anchorages), mille ülesandeks on hoida trossi pinge all ja jaotada selle koormust ühtlaselt. Nad paiknevad mõlemal pool silda ning on tavaliselt valatud betoonist. Silladekk (deck), mis moodustub sillataladest ning millel toimub liiklus. Peakaablid (main cables), mis ulatuvad ühest ankrust üle tugipostide teise ankrusse. Tornidel läbivad nad kaablisadulaid (cable saddle). Peakaablid on ühendatud silladekiga riputidega (suspender cables).

Geograafia → transpordigeograafia
7 allalaadimist
Bridges presentation
22
docx

Bridges presentation

arch, and moveable spans. The essential difference among types is the way they bear their own weight - the "dead load" and the "live load" - a person, the railway train, wind, or snow that is applied to the bridge. The weight of beam, truss, and girder bridges bears directly downwards from their ends on the ground, piers, or abutments. Arch bridges thrust outwards as well as downwards, acting in compression. The cables of suspension bridges act in tension, pulling inwards against their anchorages. If two or more beam or girder spans are joined together over piers, they become continuous, a form favoured by European engineers, who had the mathematical knowledge to analyse the indeterminate stresses introduced by such systems. A case in point is the Town lattice truss invented by Ithiel Town, an American, in 1820, which is a rare instance of reverse techno- logical transfer. The form originated in the USA, but was widely adopted in Europe, especially in iron railway bridges. The

Keeled → Inglise keel
94 allalaadimist
Ford escorti käsiraamat
256
pdf

Ford escorti käsiraamat

7 Undo the three screws and remove the Centre pillar trim panels glove compartment. Tailgate trim panel Removal 24 This comprises a flat panel secured with Refitting 14 Remove the two seat belt anchorages push-in type clips. If a rear wiper is fitted, this 8 Refitting is a reversal of removal. from the pillar. will have a moulded cover over the wiper 15 Pull off the weatherstrips from the door motor secured by quarter-turn fasteners. 32 Interior trim panels - removal apertures. 25 To remove the moulded cover, turn the

Auto → Auto õpetus
107 allalaadimist


Sellel veebilehel kasutatakse küpsiseid. Kasutamist jätkates nõustute küpsiste ja veebilehe üldtingimustega Nõustun