Bottom chord of truss is composed of two angle bars each having a dimension of 151 mm x 198 mm x 7 mm. Between them is a gusset plate, 9.5mm thick. At each end of joints, four 19mm-dia. bolts are fastened along the gage line, having an edge distance of 38 mm and 55.8mm pitch.  Use A36 steel Fy = 248 MPa Fu = 400 MPa spacing of bolt = 67.3 mm  Compute the capacity of the bottom chord based on block shear strength, in KN.

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Bottom chord of truss is composed of two angle bars each having a dimension of 151 mm x 198 mm x 7 mm. Between them is a gusset plate, 9.5mm thick. At each end of joints, four 19mm-dia. bolts are fastened along the gage line, having an edge distance of 38 mm and 55.8mm pitch. 

Use A36 steel

Fy = 248 MPa

Fu = 400 MPa

spacing of bolt = 67.3 mm 

Compute the capacity of the bottom chord based on block shear strength, in KN. 

t
->
9.5mm thick gusset plate
edge dist.
Compute the capacity of the bottom chord based on block shear strength, in KN.
Transcribed Image Text:t -> 9.5mm thick gusset plate edge dist. Compute the capacity of the bottom chord based on block shear strength, in KN.
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In Ag=38+67.3×3×7, is it really equal to 1679.3 mm2 because based on my computation it is 1451.3. 

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