Page 53 - Building Regulation and Design Guidelines - Structural (Grey Code)

SECTION: 3 GUIDELINES FOR PRE STRESSED CONCRETE WORKS (SLABS) SECTION: 3 GUIDELINES FOR PRE STRESSED CONCRETE WORKS (SLABS)

Design Considerations: Plate with deformed bar Reinforcement grouted
anchor grouted in Design Considerations: in slab keyway
Can transfer diaphragm shear slab keyway Topping if
Can provide lateral brace for beam Can transfar diaphragm shear Longitudinal required
Potential to develop negative moment in slabs Topping if Can be designed as structural inegrity tie
required bar as req'd.
Fabrication Considerations:
Fabrication Considerations: Clean and simple for both beam and slabs
Dowels from beam may present safety hazard
Plates in beam must align with slab joints
allowing tolerance Erection Considerations:
Bearing
Reinforcement must be tied in place strip
Concrete must be cast around reinforcement
Plate with beaded Bearing Edge form is required for cast-in-place concrete
Erection Considerations: stud anchors strip P.C. or C.I.P.
concrete
Dowels from beam may present safety hazard
Connection can be completed with a follow-up beam
crew P.C. or C.I.P. Fig. 5.3.11
Lateral bracing for beam will not be provided concrete
until keyway grout cures
beam Weld Plate (alt. ends)
Design Considerations: Topping if
required
Fig. 5.3.9 Can transfer internal diaphragm forces
Will develop volume change restraint forces
that must be considered in design of connection
Fabrication Considerations:
Slab manufacturing system must allow bottom
weld inserts Bearing
Beam and slab inserts must align with strip
allowance for tolerance
Design Considerations: Reinforcement grouted Erection Considerations:
in slab keyway Connections can be completed by follow-up crew P.C. or C.I.P. with beaded
Can transfer internal diaphragm forces concrete stud anchor
Can be designed as structural integrity tie
Topping if Spacer may be required to make weld beam
required Fig. 5.3.12
Fig. (3.17f) Connections
Fabrication Considerations:
Clean and simple
Design Considerations:
Weld plate
Can transfer diaphragm shear
Erection Considerations: Bearing Tortional and lateral beam restraint can be provided Topping if
strip Will develop volume change restraint forces required
Clean and simple that must be considered in design of connection
Keyway dimensions may limit the Bearing
reinforcement diameter Fabrication Considerations: strip
P.C. or C.I.P.
concrete Slab manufacturing system must allow bottom
beam weld inserts
Beam and slab weld anchors must align with
allowances for tolerance
Fig. 5.3.10
Erection Considerations: P.C. or C.I.P. with headed
concrete stud anchors
Connections can be completed by follow-up crew beam
Spacer may be required to make weld Fig. 5.3.13
Fig. (3.17e) Connections
Fig. (3.17g) Connections
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