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A simply supported composite beam 12 ft. long is loaded by a force of 6 k...

Question

A simply supported composite beam 12 ft. long is loaded by a force of 6 k...

A simply supported composite beam 12 ft. long is loaded by a force of 6 k as shown. The cross-section of the composite beam consists of a wood block reinforced on its top and bottom by steel channels. The wood block has a modulus of elasticity of 2000 ksi while the steel channel has a modulus of elasticity of 30000 ksi. The steel channel has the following dimensions.

Section

Area

(in2)

Izz

(in4)

Centroid

(in.)

   d

(in.)

   tw

(in)

   bf

(in.)

   tf

(in)

C7X14.7 4.33 1.37 0.532 7 0.419 2.30 0.366

Determine:

a) the maximum stress in the wood block.

b) the maximum stress in the steel channel.

The maximum stress in the wood block is ______ (ksi)

The maximum stress in the steel channel is ______ (ksi)

z-axis bi steel channel E(steel)= 30000 ksi tw 21. d 6 channel dimensions wood block E(wood) = 2000 ksi 6k E(steel) = 30000 k

can someone help me with this civil engineering problem?

z-axis bi steel channel E(steel)= 30000 ksi tw 21. d 6 channel dimensions wood block E(wood) = 2000 ksi 6k E(steel) = 30000 ksi steel channel 4 ft. 8 ft. d beam loading beam cross-section

Answers

Gk SY A th May Bм 3 6x468 16k. Ha 0.366 2.3 Tourg 0332 .7 Area = 4.33m² + Modular 30000 Ested twood 12z = 1:37 rahan 2000 = 1Moment & Inechia of Transformed sechon : Ma F22= { 378 + { 4.33 * 0.5322 }}x2 + 0.666763 12 ܝܕܕܠ — 13.591 inch May stress stestress variahion aceross the wrath • Please voce answer may ço sreis wood block i 16 *1g & steel 13.591 3 => f Shress in stee


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