A column bracket having the general features shown in Fig. 11.24 is to be designed to carry the end reaction from a long-span precast girder. Vertical reactions from service dead and live loads are 25 and 51 kips, respectively, applied at a, = 5.5 in. from the column face. A steel bearing plate will be provided for the girder, which will rest directly on a 5 × 3 X in. steel angle anchored at the outer corner of the bracket. Bracket reinforcement will include main steel A, welded to the underside of the steel angle, closed hoop stirrups having total area A, distributed appropriately through the bracket depth, and framing bars in a vertical plane near the outer face. Select appropri- ate concrete dimensions, and design and detail all reinforcement. Material strengths are f. = 5000 psi and f, = 60,000 psi. 14" *- 8"- Vu 5" x 3" x "steel angle 5- 2 Asc. Nuc dh An 2" clear 41 Framing bars Column 12" X 14"
A column bracket having the general features shown in Fig. 11.24 is to be designed to carry the end reaction from a long-span precast girder. Vertical reactions from service dead and live loads are 25 and 51 kips, respectively, applied at a, = 5.5 in. from the column face. A steel bearing plate will be provided for the girder, which will rest directly on a 5 × 3 X in. steel angle anchored at the outer corner of the bracket. Bracket reinforcement will include main steel A, welded to the underside of the steel angle, closed hoop stirrups having total area A, distributed appropriately through the bracket depth, and framing bars in a vertical plane near the outer face. Select appropri- ate concrete dimensions, and design and detail all reinforcement. Material strengths are f. = 5000 psi and f, = 60,000 psi. 14" *- 8"- Vu 5" x 3" x "steel angle 5- 2 Asc. Nuc dh An 2" clear 41 Framing bars Column 12" X 14"
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A column bracket having the general features shown in
Fig. 11.24 is to be designed to carry the end reaction from a long-span precast girder.
Vertical reactions from service dead and live loads are 25 and 51 kips, respectively, applied
at a, = 5.5 in. from the column face. A steel bearing plate will be provided for the girder,
which will rest directly on a 5 × 3 X in. steel angle anchored at the outer corner of the
bracket. Bracket reinforcement will include main steel A, welded to the underside of
the steel angle, closed hoop stirrups having total area A, distributed appropriately through
the bracket depth, and framing bars in a vertical plane near the outer face. Select appropri-
ate concrete dimensions, and design and detail all reinforcement. Material strengths are
f. = 5000 psi and f, = 60,000 psi.
Transcribed Image Text:14"
*- 8"-
Vu
5" x 3" x "steel angle
5-
2
Asc.
Nuc
dh
An
2" clear
41
Framing bars
Column 12" X 14"
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