The two-way slab shown in the following Figure has been assumed to have a thickness of 6.5 in. Section A-A in the figure shows the beam cross section. What is the average value of af if Ib=18060 in“, f = 3000 psi, fy = 60,000 psi, and normal-weight concrete. The answer must be written in decimal form like 0.11. 23 23t 19 19 Sectin A

The two-way slab shown in the following Figure has been assumed to have a thickness of 6.5 in. Section A-A in the figure shows the beam cross section. What is the average value of af if Ib=18060 in“, f = 3000 psi, fy = 60,000 psi, and normal-weight concrete. The answer must be written in decimal form like 0.11. 23 23t 19 19 Sectin A

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

Design criteria for structural loading

The different loads such as loads due to self-weight (dead load) and external loads such as live load, wind loads, seismic load, snow load, and other loads and load combinations that influence the design of a building are called structural loading. The nature of the applied load differs from changes in the location, design, and type of materials used. The design criteria require that structures must be designed and constructed to be able to withstand all load types that are expected to act upon the structure and render its usage for the designated purpose. The structural members such as beams, slabs, columns, and foundations help the structure to withstand the applied load. There are different institutes such as ASCE and ACI that provide building design codes to assure minimum safety requirements and quality of the structures.

Question

The two-way slab shown in the following
Figure has been assumed to have a thickness
of 6.5 in. Section A-A in the figure shows the
beam cross section. What is the average value
of af if Ib=18060 in“, fe = 3000 psi, fy = 60,000
psi, and normal-weight concrete. The answer
%3D
must be written in decimal form like 0.11.
23
23t
23
19
19
Sectivn A-A

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A concrete test cylinder with a cross-sectional area of 28.3 in squared is to be tested in axial compression. Before loading two marks are scribed on the cylinder precisely 8 in apart (as shown in the figure below) when the load is 40,000 lb the marks are measured and found to be 7.997 in apart determine the E value for this concrete. Assume an approximately linear relationship between stress and strain.