[Philip Garrison] Basic Structures for Engineers a(B-ok.cc)

1 Rafer : Horizontal Horizontal member at the ridge spanning the column

Span Span

4m

Spacing-Y

5.5 m

Load

1.5 KN/m2

Total Load

12.375 KN/m

Moment

24.75 KN KN-m

Mome Moment nt

13.' 13.'22 22 KN-m KN-m

lloale $t%e$$  maximm *xx Selected $ec!on "ailale *

(Maximm nega!"e Moment at t#e con!no$ $ppo%t& (Max (Maxim imm m po$i po$i!" !"e e mome moment nt at t#e t#e end end $pp $ppo% o%t& t&

1) 1) Mpa Mpa 137.5 cm3

+SM, 175 145.4 cm3

2 Purlins: members spanning the rafer rafer and the lintel beam

Spacing-

1.3 m

Span

5.5 m

Load

1.5 KN/m2

Total Load

2.'25 KN/m

Moment

11.)0 KN K N-m

lloale $t%e$$  maximm *xx Selected $ec!on "ailale *

(Maximm po$i!"e Moment at t#e cente% a$$ming $impl $p

15 15 Mpa Mpa 59.75 cm3

1 4 ) x ) x4 01.37 cm3

3 !econdar" !econdar" Purlins Purlins

Span Span

1.3 m 1.3

Spacing-Y

1.5 m

Load

1.5 KN/m2

Total Load

2.25 KN/m

Moment

).4 KN K N-m

lloale $t%e$$  maximm *xx Selected $e $ec!on "ailale *

105 105 Mpa Mpa 2.1 cm3 3  x 3  x 2 .0 3 cm3

(Maximm po$i!"e Moment at t#e cente% a$$ming $impl $p

 

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