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DESIGN CRITERIA
Friends has a good experience to work under the following design criteria:
ROAD:
1- Geometric design : AASHTO 2001
2- Pavement Design: AASHTO 1986-Road Note 31-1993
BRIDGE STRUCTURES:
| Standards for general Features Loading (except earthquake) Distribution of load. | “Code of Practice; Highway Bridges, Highway Department West Pakistan. |
| Standards for Load combinations Reinforced concrete, pre stressed concrete, steel and composite structure. | AASHTO, LRFD Bridge Design Specification (1998) |
| Design Reference for Railings | AASHTO, LRFD Bridge Design Specification (1998) |
| Design Reference for Utilities | AASHTO, LRFD Bridge Design Specification (1998) |
| Standard for Seismic Load and design | AASHTO, LRFD Bridge Design Specification (1998) |
| Seismic zone and acceleration coefficient for earthquake forces | AASHTO, LRFD Bridge Design Specification (1998) |
| Importance category | AASHTO, LRFD Bridge Design Specification (1998) |
BRIDGE STRUCTURES:
1. BSS = British Standards Specification.
2. ACI = American Concrete Institute.
3. ASTM = American Society for testing material.
4. AASHTO = American Association of State Highway and Transportation Officials.
5. KBCA = Karachi Building Control Authority.
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