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Civil Engineering
The lap connection shown in Figure 3 shows nine 20 mm - diameter A325 bolts spaced as follows: S1 = 50 mm S3 = 50 mm S2 = 80 mm S4= 100 mm Thickness of plates, t= 25 mm Bolt hole diameter = 23 mm Tensile strength and stresses: Yield strength, Fy = 248 MPa Tensile strength of steel, Fu = 400 MPa Allowable tensile stress on gross area = 0.6Fy Allowable tensile stress on net area = 0.5Fu Allowable bolt shear stress= 120 MPa Allowable bolt bearing strength = 480 MPa

The lap connection shown in Figure 3 shows nine 20 mm - diameter A325 bolts spaced as follows: S1 = 50 mm S3 = 50 mm S2 = 80 mm S4= 100 mm Thickness of plates, t= 25 mm Bolt hole diameter = 23 mm Tensile strength and stresses: Yield strength, Fy = 248 MPa Tensile strength of steel, Fu = 400 MPa Allowable tensile stress on gross area = 0.6Fy Allowable tensile stress on net area = 0.5Fu Allowable bolt shear stress= 120 MPa Allowable bolt bearing strength = 480 MPa

Structural Analysis
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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The lap connection shown in Figure 3 shows nine 20 mm - diameter A325 bolts spaced as follows:

S1 = 50 mm S3 = 50 mm

S2 = 80 mm

S4= 100 mm

Thickness of plates, t= 25 mm Bolt hole diameter = 23 mm

Tensile strength and stresses:

Yield strength, Fy = 248 MPa

Tensile strength of steel, Fu = 400 MPa

Allowable tensile stress on gross area = 0.6Fy

Allowable tensile stress on net area = 0.5Fu

Allowable bolt shear stress= 120 MPa

Allowable bolt bearing strength = 480 MPa

Calculate the allowable tensile load (kN) based on the following conditions:

Based on bearing strength of bolt.

  1. 2160
  2. 2387
  3. 2475
  4. 4320
    Based on shearing strength of bolts.
  5. 339
  6. 368
  7. 415
  8. 524

    Based on tensile strength of plate.
  9. 958
  10. 1116
  11. 1155
  12. 1325
T T and S₁ S2 S2 S1 F PSADFigure 3 TS3 Sa SA IS3 T. T
Transcribed Image Text:T T and S₁ S2 S2 S1 F PSADFigure 3 TS3 Sa SA IS3 T. T
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