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
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
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.
- 2160
- 2387
- 2475
- 4320
Based on shearing strength of bolts. - 339
- 368
- 415
- 524
Based on tensile strength of plate. - 958
- 1116
- 1155
- 1325
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and
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Transcribed Image Text:T
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and
S₁ S2 S2 S1
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PSADFigure 3
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