The short beam shown in Fig. P6.9 cantilevers from a supporting column at the left. It must carry a calculated dead load of 2.0 kips/ft including its own weight and a service live load of 2.6 kips/ft. Tensile flexural reinforcement consists of two No. 11 (No. 36) bars at a 21 in. effective depth. Transverse No. 3 (No. 10) 2 No. 11 (No. 36) 2" clear- 3" clear - 21" 24" 20" -. 96" 18" U stirrups with 1.5 in. cover are provided at the following spacings from the face of the column: 4 in., 3 at 8 in., 5 at 10.5 in. (a) If the flexural and shear steel use f, = 60,000 psi and if the beam uses lightweight concrete having f, = 4000 psi, check to see if proper develop- ment length can be provided for the No. 11 (No. 36) bars. Use the simpli- fied development length equations. (b) Recalculate the required development length for the beam bars using the basic Eq. (6.4). Comment on your results. (c) If the column material strengths are f, = 60,000 psi and f. = 5000 psi (nor- malweight concrete), check to see if adequate embedment can be provided within the column for the No. 11 (No. 36) bars. If hooks are required, specify detailed dimensions.

The short beam shown in Fig. P6.9 cantilevers from a supporting column at the left. It must carry a calculated dead load of 2.0 kips/ft including its own weight and a service live load of 2.6 kips/ft. Tensile flexural reinforcement consists of two No. 11 (No. 36) bars at a 21 in. effective depth. Transverse No. 3 (No. 10) 2 No. 11 (No. 36) 2" clear- 3" clear - 21" 24" 20" -. 96" 18" U stirrups with 1.5 in. cover are provided at the following spacings from the face of the column: 4 in., 3 at 8 in., 5 at 10.5 in. (a) If the flexural and shear steel use f, = 60,000 psi and if the beam uses lightweight concrete having f, = 4000 psi, check to see if proper develop- ment length can be provided for the No. 11 (No. 36) bars. Use the simpli- fied development length equations. (b) Recalculate the required development length for the beam bars using the basic Eq. (6.4). Comment on your results. (c) If the column material strengths are f, = 60,000 psi and f. = 5000 psi (nor- malweight concrete), check to see if adequate embedment can be provided within the column for the No. 11 (No. 36) bars. If hooks are required, specify detailed dimensions.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Solid Mechanics

Engineering mechanics is a branch of science that deals with forces causing bulk motion in bodies and the effect that these forces cause on the bodies. Engineering mechanics does not deal with the internal changes that occur on account of these external forces. The internal effects in a body or a material under the action of external forces are studied in a new branch of science called solid mechanics, the strength of materials, or the mechanical behavior of engineering materials.

Question

The short beam shown in Fig. P6.9 cantilevers from a supporting column at the
left. It must carry a calculated dead load of 2.0 kips/ft including its own weight
and a service live load of 2.6 kips/ft. Tensile flexural reinforcement consists
of two No. 11 (No. 36) bars at a 21 in. effective depth. Transverse No. 3 (No. 10)
2 No. 11 (No. 36)
2" clear-
3" clear
21" 24"
- 20" -
96"
- 18" -
U stirups with 1.5 in. cover are provided at the following spacings from the
face of the column: 4 in., 3 at 8 in., 5 at 10.5 in.
(a) If the flexural and shear steel use fy = 60,000 psi and if the beam uses
lightweight concrete having f' = 4000 psi, check to see if proper develop-
ment length can be provided for the No. 11 (No. 36) bars. Use the simpli-
fied development length equations.
(b) Recalculate the required development length for the beam bars using the
basic Eq. (6.4). Comment on your results.
(c) If the column material strengths are f, = 60,000 psi and f' = 5000 psi (nor-
malweight concrete), check to see if adequate embedment can be provided
within the column for the No. 11 (No. 36) bars. If hooks are required,
specify detailed dimensions.

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Rigid bar ABC is supported by member (1) at B and by a pin connection at C. Member (1) has a cross sectional area of 1.35 in.² and a yield strength of 45 ksi. The pins at B, C, and D each have a diameter of 0.7 in. and an ultimate shear strength of 78 ksi. Each pin connection is a double-shear connection. Specifications call for a minimum factor of safety in member (1) of 1.5 with respect to its yield strength. The minimum factor of safety required for pins B, C, and D is 2.9 with respect to the pin ultimate shear strength. Determine the allowable load P that may be applied to the rigid bar at A. Use overall dimensions of a = 46 in. and b = 94 in. D (1) b A kips P Answer: Pallow= i a B
Answer with complete fbd,
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The floor structural system shown in Fig 1 comprise W-section steel beams and girders supporting a 5-inch thick concrete slab which provides full restraint to the flanges of the beams. The density of concrete is 150 lbs. /ft³. and the uniformly distributed live load L=50 lbs/ft². L-22¹ B B. Girder G1: - [82] 12' Gl GI [BI] FIG. 1-Steel Floor Beam a) Strength - Bending and Shear 12' + I 1) Produce a sketch of the floor plan showing the tributary load distribution areas for the beams and girders [zul