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Nisava River Bridge-RO

Date post: 10-Oct-2015
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  • 5/20/2018 Nisava River Bridge-RO

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    Construction

    Pod peste raul Niava

    Vedere de ansamblu

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    Pod peste raul Niava, autostrada NiBelgrade-Ni-Skopje, Iugoslavia

    Pod din beton armat, continuu pe trei

    deschideri: construit in 1959/1960 Lungimea podului:

    L = 14,0 + 68,0 + 14,0 = 96,0 m

    Latimea podului:B = 18,36 m

    Proiect:

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    Sectiune longitudinala

    Pod peste raul Niava

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    La mijlocul deschiderii In dreptul reazemului

    Pod peste raul NiavaSectiuni

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    Rezistenta insuficienta la incovoieredatorata cresterii traficului

    Deasupra reazemelor, pe directie

    longitudinala:

    Crapaturi transversale mari intablier

    Riscul corodarii armaturilor

    In tablier, pentru momentele

    incovoietoare datorate incarcarilor

    concentrate

    Pod peste raul Niava

    Problema:

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    Placi pretensionate din CarboDurCFRP tip S914 dispuse deasupra

    reazemelor

    Lungimea placilor: max. 33,0 m

    Numarul placilor: 108

    Lungime totala CarboDur: cca. 3200 m

    Forta de pretensionare:

    Vo= 135 kN

    Durata lucrarii: 15 iulie - 30 octombrie 2001

    Pod peste raul Niava

    Solutia:

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    Consultant & Contractor

    MOSTOGRADNJA Ltd. Co.

    Civil Engineering and Construction Company Belgrad,Iugoslavia

    Pretensionarea placilor Sika CarboDur CFRP S914

    cu ajutorul unui sistem

    proiectat, testat, construit si brevetat deMOSTOGRADNJA

    Pod peste raul Niava

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    Distributia placilor pretensionate din CarboDur CFRPLungime max. 33 m

    Sectiune longitudinala

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    Pod peste raul Niava

    Placi CarboDur CFRP tip S914,

    nepretensionate, pentru tablierul

    podului

    Lungimea placilor : 4 - 5 m

    Numarul placilor : 400

    Lungime totala CarboDur

    : cca. 1800 m

    Pod peste raul Niava

    Solutia:

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    Echipament auxiliar pentru aplicarea placilor CarboDur

    Pod peste raul Niava

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    Aplicarea Sikadur-30 si a placilor de CarboDur

    pe tablierul podului

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    Pregatirea placilor de ancoraj

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    Sistemul de ancorare - detaliu

    Actiunea de pretensionare

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    Actiunea de pretensionare

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    Echipamentul de pretensionare

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    Sistemul de ancoraj in timpul intaririi

    adezivului epoxi Sikadur-30

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    Construction

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    Protectia termica a placilor

    pretensionate CarboDur CFRP

    Solutia cu Sistem Sika

    Pod peste raul Niava


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