Question

A grade S275 steel beam 457x152x74 UB carries permanent loads and variable loads from two secondary beams as shown in Figure Q2. The beam is laterally restrained at the supports and the secondary beams. Design mineral fibre box protection to give 90min fire performance if the thermal properties of the proposed thermal insulation are as follows: = 0.25T/m³C P = 500 kg/m p=7850 kg/m² Gk=20 kN/m Qk=40kN/m Gk=10kN/m Qk-20kN/m 3500 mm 3500 mm 3500 mm Figure Q2 Determine the design bending resistance of the beam at 20°C temperature and compare with the design load at room temperature.​

Answer 1

Explanation:

There are 4 basic types of tissue: connective tissue, epithelial tissue, muscle tissue, and nervous tissue. Connective tissue supports other tissues and binds them together (bone, blood, and lymph tissues). Epithelial tissue provides a covering (skin, the linings of the various passages inside the body).

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