The cross section shown is for the fixed support of a propped beam that carries anallowable ultimate moment of 60 kN-m. The concrete is lightweight consisting of alightweight coarse aggregate and a mixture of a lightweight and normal weight fineaggregate. The total volume of fine aggregate is 15 m3 and 7m3 of it are lightweight.Determine the following if the compressive strength of the concrete is 25 MPa, fy=420 MPaand the weight of the concrete is 1600 kg/m3:(a) Cracking Moment(b) Transformed Moment of Inertia.(c) Tension Stress of Concrete.(d) Transformed Compression Steel Stress.(e) Actual Tension Steel Stress.(f) Compression Force in the Concrete due to bending.(g) Total Tension Force of the reinforced concrete due to bending.90 mm 20 mm190 mm70 mm40 mm3- Ø25390 mm40 mm4- 02070 mm130 mm90 mm'

Solution (sand and stone). The concrete glue is the "stick" which ties the particles in the total…

Answered: owing if the compressive strengt the…

owing if the compressive strengt the concrete is 1600 kg/m³: oment Moment of Inertia. ss of Concrete. Compression Steel Stress.

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 cross section shown is for the fixed support of a propped beam that carries an
allowable ultimate moment of 60 kN-m. The concrete is lightweight consisting of a
lightweight coarse aggregate and a mixture of a lightweight and normal weight fine
aggregate. The total volume of fine aggregate is 15 m3 and 7m3 of it are lightweight.
Determine the following if the compressive strength of the concrete is 25 MPa, fy=420 MPa
and the weight of the concrete is 1600 kg/m3:
(a) Cracking Moment
(b) Transformed Moment of Inertia.
(c) Tension Stress of Concrete.
(d) Transformed Compression Steel Stress.
(e) Actual Tension Steel Stress.
(f) Compression Force in the Concrete due to bending.
(g) Total Tension Force of the reinforced concrete due to bending.
90 mm 20 mm
190 mm
70 mm
40 mm
3- Ø25
390 mm
40 mm
4- 020
70 mm
130 mm90 mm'

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