A built-up laced column of overall square cross-section, 300 mm size has been formed by placing four angles of ISA 50 x 50 x 6 mm at the corners of the square. If the effective height of column is 10 m, then calculate the load carrying capacity of the column. Also, check the lacing system for safety against: (i) Local buckling of column angles. (ii) Strength of lacing bars in tension and compression against shear load. (iii) Strength of M20 bolts of grade 4.6, check safety of bolt. Lacing system consist of 60 x 10 mm flat bars arranged in a single laced system and inclined to the axis of the column at an angle of 45° kL/r for (MPa) 164 153 135 125 111 98 86 40 50 60 70 80 90 100 145 50 For ISA 50 x 50 x 6 mm, area = 568 mm?, I, =I, = 12.9 x 104 mm4, 14.5 mm, Tmin = 15.1 mm.

A built-up laced column of overall square cross-section, 300 mm size has been formed by placing four angles of ISA 50 x 50 x 6 mm at the corners of the square. If the effective height of column is 10 m, then calculate the load carrying capacity of the column. Also, check the lacing system for safety against: (i) Local buckling of column angles. (ii) Strength of lacing bars in tension and compression against shear load. (iii) Strength of M20 bolts of grade 4.6, check safety of bolt. Lacing system consist of 60 x 10 mm flat bars arranged in a single laced system and inclined to the axis of the column at an angle of 45° kL/r for (MPa) 164 153 135 125 111 98 86 40 50 60 70 80 90 100 145 50 For ISA 50 x 50 x 6 mm, area = 568 mm?, I, =I, = 12.9 x 104 mm4, 14.5 mm, Tmin = 15.1 mm.

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter9: Composite Construction

Section: Chapter Questions

Problem 9.1.3P

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