SUPERSTRUCTURE STRESS LIMITS (METRIC)
STRESS LIMITS CONSTRUCTION STAGES:STRUCTURAL RESPONSE: STRESS LIMITS (CONCRETE): COMPRESSIVE LIMITS OF CONCRETE: STRESS LIMITS: PRESTRESSING STEEL
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SUPERSTRUCTURE SELECTION OF DEPTH AND SPACING (METRIC)
SELECTION OF GIRDER DEPTH AND SPACING INPUT: SPAN LENGTH DECK WIDTH OUTPUT: GIRDER DEPTH GIRDER SPACING EXAMPLE :
BRIDGE SUPERSTRUCTURE MATERIALS (METRIC)
MATERIALS NOTE: USE ARMATEC FROM "SIKA" TO COAT(PAINT) REBAR "TO GROUT TENSION CABLES USE: ARMAEK CEMENT " REINFORCING STEEL NOTE: USE ARMATEC FROM "SIKA" TO COAT(PAINT) REBAR PRESTRESSING STEEL: PRESTRESSING STEEL: CONCRETE:
COMPOSITE STEEL GIRDER BRIDGE (METRIC)
STRUCTURAL STEEL - BASE ELEMENT CONNECTIONS-BOLT NOMINAL STRESS CONNECTION BOLTS-TENSILE STRENGTH REQUIERMENTS CONNECTIONS-MINIMUM BOLT PRETENSION - CLAMPING BOLT TORQUE: CONNECTIONS-WELD: WELD QUALITY: SHEAR STUDS:
SEGMENTAL POST-TENSIONED BOX BRIDGE MATERIALS (METRIC)
MATERIALS AND COMPONENT IN USE: Precast segments have been manufactured using six main elements 1.Concrete 2.-Prestressing steel 3.-Rebars 4.-Grout 5.-Ducts 6.-Anchorages CONCRETE: Typical 28 day concrete strength is usually set to a minimum value. The elastic modulus of concrete can be computed from the equation: Ec=4800 (f'c)**1/2, where f'c is the 28 day compressive strength of concrete. Usually f'c is not less then 45 MPa PRESTRESSING STEEL-STRANDS: Strand tendons shall consist of low-relaxation steel.Typical material properties are given below: NOTE: USE ARMATEK 110 CEMENT TO DO THE GROUT PRESTRESSING STEEL-BARS: REBARS: COVER (PAINT) REBAR WITH "ARMATEC" FROM SIKA TO PREVE...