OKA PRESTRESSED (PRETENSIONED) T-BEAMS PDF Brochure
| JKR STANDARD T-BEAMS | : | PRT 1, PRT 2, PRT 3 | (FOR SPANS UPTO 22M) | | JKR MODIFIED T-BEAM | : | PRT M | (FOR SPANS UPTO 28M) |
_______________________________________________________________________________________________________________
| | | | | |  |  | | | | | | Specifications | | | 1. | Prestressing strands : Low relaxation 7-wire strands to BS 5896:1980; nominal diameter 12.9mm (10m span), nominal diameter 15.7mm (>10m span), | | 2. | Concrete characteristic strength : 50N/mm2, nominal concrete cover : 50mm, | | 3. | Typical cross beams : end cross beams 400 x 850mm; intermediate cross beams 600 x 850mm at every 9m or less, | | 4. | Customized beam designs upon request. | | | | | 
TYPICAL SECTION OF CARRIAGEWAY | | | | |
OKA PRESTRESSED (PRETENSIONED) M-BEAMS  | | | |  |  | | | |  |  | | | |  |  | | | |
| Note | | 1. | Prestressing strands are 12.9mm diameter 7-wire super strands (low relaxation) conforming to BS 5896:1980. | | 2. | It will be more economical (no additional production costs) if designers adopt the standard layout for prestressing strands as shown above. | | | Download PDF Brochure | | Top of Page |
|
