A built-up beam made from fastening two channels to a wide flange section carries loads as shown. Thefasteners are 12mmØ bolts with allowable shear stress t = 110 MPa. For bearing op= 220 MPa forsingle shear, and op= 275 MPa for double shear. E= 200 GPa. Fy= 420 MPaa. Determine the horizontal shearing stress at 20 mm above the Neutral Axisb. Determine the horizontal shearing stress at 95 mm above the Neutral Axis 16 KN/m10 KNmE4m1.35m3.15m1.5m210 mm180 mm12 mm9 mm180 mm210 mm238 m15 mm90mm9 mm

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Answered: a. Determine the horizontal shearing…

a. Determine the horizontal shearing stress at 20 mm above the Neutral Axis o. Determine the horizontal shearing stress at 95 mm above the Neutral Axis

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

Methods to Determine Vertical Stress

The load applied to the soil is transferred to the underground. The presence of water at soil pores and solid grains above the soil are the primary components that are responsible for the effective load transfer. Due to the load acting, the internal component of the soil or the underground formations undergoes deformations or a tectonic shift. The amount of deformation depends upon the amount of load acting on the soil surface, which indeed, depends on the weight of everything present above the soil. Due to this, the underground soil element develops internal stresses which try to resist the tectonic changes.

Question

A built-up beam made from fastening two channels to a wide flange section carries loads as shown. The
fasteners are 12mmØ bolts with allowable shear stress t = 110 MPa. For bearing op= 220 MPa for
single shear, and op= 275 MPa for double shear. E= 200 GPa. Fy= 420 MPa
a. Determine the horizontal shearing stress at 20 mm above the Neutral Axis
b. Determine the horizontal shearing stress at 95 mm above the Neutral Axis

16 KN/m
10 KNm
E
4m
1.35m
3.15m
1.5m
210 mm
180 mm
12 mm
9 mm
180 mm
210 mm
238 m
15 mm
90mm
9 mm

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