The continuous beam shown in the figure below has been designed to carry a service dead load of 2 kips/ft including self-weight, and a service live load of 3 kips/ft. Flexural design has been based on ACI moment coefficients of 1/11 at the face of supports and 1/16 at midspan, resulting in a concrete section with b = 14 in. and d = 22 in. The negative-moment reinforcement at the support face is provided by four #10 bars, which will be cut off in pairs where no longer required. Positive- moment reinforcement consists of four #8 bars, which will also be cut off in pairs. Specify the exact point of cutoff for all negative and positive steel according to ACI 318 requirements. Determine the shear reinforcement required. Specify any supplementary shear reinforcement if required for terminating the bars in tension zone. The concrete has a compressive strength of 4,000 psi and the steel is Grade 60. J 4 #10 4 #8 24 ft 4 # 10

The continuous beam shown in the figure below has been designed to carry a service dead load of 2 kips/ft including self-weight, and a service live load of 3 kips/ft. Flexural design has been based on ACI moment coefficients of 1/11 at the face of supports and 1/16 at midspan, resulting in a concrete section with b = 14 in. and d = 22 in. The negative-moment reinforcement at the support face is provided by four #10 bars, which will be cut off in pairs where no longer required. Positive- moment reinforcement consists of four #8 bars, which will also be cut off in pairs. Specify the exact point of cutoff for all negative and positive steel according to ACI 318 requirements. Determine the shear reinforcement required. Specify any supplementary shear reinforcement if required for terminating the bars in tension zone. The concrete has a compressive strength of 4,000 psi and the steel is Grade 60. J 4 #10 4 #8 24 ft 4 # 10

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

Members with compression and bending

Compression members are structural elements that carry compressive axial force. They are the vertical members of a building that support beams and their design, which is governed by buckling and strength. Columns are known as struct or compression members, which are subjected to compressive forces. These members provide stiffness to the building and avoid any imperfection regarding the transfer of axial load. For instance, webs in a truss, braces in a framed structure, tiers, and so on.

Question

The continuous beam shown in the figure below has been designed to carry a service dead load of
2 kips/ft including self-weight, and a service live load of 3 kips/ft. Flexural design has been based
on ACI moment coefficients of 1/11 at the face of supports and 1/16 at midspan, resulting in a
concrete section with b = 14 in. and d = 22 in. The negative-moment reinforcement at the support
face is provided by four #10 bars, which will be cut off in pairs where no longer required. Positive-
moment reinforcement consists of four #8 bars, which will also be cut off in pairs. Specify the
exact point of cutoff for all negative and positive steel according to ACI 318 requirements.
Determine the shear reinforcement required. Specify any supplementary shear reinforcement if
required for terminating the bars in tension zone. The concrete has a compressive strength of 4,000
psi and the steel is Grade 60.
4 #10
4 #8
24 ft
4 #10

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