ib-Tutorial 2

# ib-Tutorial 2 - 2 m Wind 2.5 m 1 m 2 m Water Tank 2 m Side...

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EG1109 STATICS and MECHANICS OF MATERIALS INQUIRY-BASED TUTORIAL NO. 2 1. Consider a water tower truss structure with wind blowing on the side of the water tank as shown in Fig. 1. Determine the force in members AC and CD due to the wind load only. The uniform wind pressure is 0.7 kN/m 2 and a safety factor for load of 1.2 should be used. Fig. 1 2. The plane truss shown in Fig. 2 supports a load P . Determine the maximum value of P if the stress in any member must not exceed 125 N/mm 2 in tension and 100 N/mm 2 in compression. All members have a cross-sectional area of 250 mm 2 . Fig. 2 H G F E C D B A 2 m 2 m

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Unformatted text preview: 2 m Wind 2.5 m 1 m 2 m Water Tank 2 m Side Elevation Front Elevation B E F D C A G H 30 o 45 o 3 m 3 m 3 m 3 m 5 m 3 m 6 m P 3. The wall crane in Fig. 3 supports a load of 800 N. Determine the horizontal and vertical components of reaction at the pins A and D . Also, what is the force in the cable at the winch W ? 4. Find the tension in cable FG supporting the pin-jointed frame structure loaded as shown in Fig. 4. The disc at C weighs 1000 N. Neglect the weights of members and effect of friction. Fig. 4 B C 0.5 m 2000 N Disc 30 1.0 m 1.0 m 1.0 m 3 m 2 m 3 m A D E F G Fig. 3...
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## This note was uploaded on 02/25/2011 for the course EG 1109 taught by Professor Prof during the Spring '11 term at National University of Singapore.

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ib-Tutorial 2 - 2 m Wind 2.5 m 1 m 2 m Water Tank 2 m Side...

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