Given Beam Data: Slab Thickness, t=175 mm Effective Depth, d = 300 mm Width of web, bw=250 mm Material Properties Concrete, fe 24 MPa Steel, fy=415 Mpa The concrete slab has an equivalent width of 600 mm and casted monolithically with the beam. Assume that the steel bars will be distributed in one layer only and use 2010 NSCP. a) Determine the balanced steel ratio of the section in positive bending b) Determine the maximum steel ratio for the beam in positive bending for failure in tension c) If the slab has a thickness of 100 mm and the equivalent width of the concrete flange from the slab is 1200 mm, determine the balanced steel ratio of the section for positive bending d) Determine the steel ratio if the section is used for negative bending

Given Beam Data: Slab Thickness, t=175 mm Effective Depth, d = 300 mm Width of web, bw=250 mm Material Properties Concrete, fe 24 MPa Steel, fy=415 Mpa The concrete slab has an equivalent width of 600 mm and casted monolithically with the beam. Assume that the steel bars will be distributed in one layer only and use 2010 NSCP. a) Determine the balanced steel ratio of the section in positive bending b) Determine the maximum steel ratio for the beam in positive bending for failure in tension c) If the slab has a thickness of 100 mm and the equivalent width of the concrete flange from the slab is 1200 mm, determine the balanced steel ratio of the section for positive bending d) Determine the steel ratio if the section is used for negative bending

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

Given Beam Data:
Slab Thickness, t=175 mm
Effective Depth, d= 300 mm
Width of web, bw = 250 mm
Material Properties
Concrete, fc-24 MPa
Steel, fy = 415 Mpa
The concrete slab has an equivalent width of 600 mm and casted monolithically with the beam Assume
that the steel bars will be distributed in one layer only and use 2010 NSCP.
a) Detemine the balanced steel ratio of the section in positive bending
b) Determine the maximum steel ratio for the beam in positive bending for failure in tension.
c) If the slab has a thickness of 100 mm and the equivalent width of the concrete flange from the slab is 1200
mm, detemine the balanced steel ratio of the section for positive bending
d) Determine the steel ratio if the section is used for negative bending

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