Situation 1 | A built-up beam made from fastening two channels to a wide flange section carriesloads as shown. The fasteners are 12mmØ bolts with allowable shear stress = 110 MPa. Forbearing, Ob= 220MPA for single shear, and Ob= 275 MPa for double shear. E=200 GPA. Fy-420MPа.16 KN/m10 KN/mDB4m1.35m3.15m1.5m210mm180mm12mm9mm180mm210mm238mm 4. Determine the maximum bending stress on the section.5. Determine the maximum shearing stress at Neutral Axis.6. Determine the horizontal shearing stress at 20 mm above the Neutral Axis.7. Determine the horizontal shearing stress at 95 mm above the Neutral Axis.8. Determine the spacing of the bolts.

Answered: Image /qna-images/answer/7c19db0e-11b4-414e-a114-337b467f88a4.jpg

Answered: 4. Determine the maximum bending stress…

4. Determine the maximum bending stress on the section. 5. Determine the maximum shearing stress at Neutral Axis. 6. Determine the horizontal shearing stress at 20 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

Situation 1 | 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 = 110 MPa. For
bearing, Ob= 220MPA for single shear, and Ob= 275 MPa for double shear. E=200 GPA. Fy-420
MPа.
16 KN/m
10 KN/m
D
B
4m
1.35m
3.15m
1.5m
210mm
180mm
12mm
9mm
180mm
210mm
238mm

4. Determine the maximum bending stress on the section.
5. Determine the maximum shearing stress at Neutral Axis.
6. Determine the horizontal shearing stress at 20 mm above the Neutral Axis.
7. Determine the horizontal shearing stress at 95 mm above the Neutral Axis.
8. Determine the spacing of the bolts.

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