Souvenir - Bangladesh Group of IABSE
Souvenir - Bangladesh Group of IABSE
Souvenir - Bangladesh Group of IABSE
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The decking is supported on RCC piers having two circular columns spaced 5m centre to centre. A<br />
horizontal tie beam <strong>of</strong> 1m x o.75m sizes was introduced at different height from the base.<br />
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PII;R PILE CAP PLAN - REINF. DETAil"<br />
Each span comprises 5 No. Prestressed post-tensioned concrete girder and placed over elastomeric<br />
bearings on piers or abutment. Overall depth <strong>of</strong> each <strong>of</strong> the 5 girders is 2.6m. The web thickness is 240mm<br />
at center <strong>of</strong>the girder. The flange thickness is 175mm at end and center <strong>of</strong> girder. The width <strong>of</strong> top flange is<br />
1.lm and that <strong>of</strong> bottom flange is 740mm. Each beam consists <strong>of</strong> 12 tendons and each tendon consists <strong>of</strong>6<br />
No (7 wires) strands <strong>of</strong> 12.7 mm diameter. Prestressing tendon is normal relaxation strand with breaking<br />
strength <strong>of</strong> each strand not less than 183.5 KN conformed to ASTM A 416-85 or approved equivalent.<br />
Cylinder crushing strength <strong>of</strong> prestressed girder is 35 MPa at 28 days and crushing strength <strong>of</strong> concrete at<br />
time <strong>of</strong> transfer <strong>of</strong> prestressing force is 28 MPa (Minimum).
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