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Architectural design and practice Phần 10

Trang trí, thiết kế đòi hỏi những kiến thức rất sâu, rất căn bản về phong thủy và kiến trúc. Do đó, thông thường khi muốn thiết kế một phòng họp, gian hàng, showroom, nội thất nhà cửa, cửa hàng, phòng hát,. Người ta thường tìm đến những công ty thiết kế chuyên nghiệp. | 4.25 m Fig. 12.10 Panel simply supported top and bottom and fixed at its vertical edges. 12.8.1 Limiting dimension clause 36.3 BS 5628 case B The dimensions hx1 of panels supported on four edges should be equal to or less than 2025 tef 2 area 2.85 X 4.25 12.12 m2 tef I X 205 137 mm 2025 X 137 2 106 38 m2 12.12m2 satisfactory 50 X tef 6.85 4.25 satisfactory 12.8.2 Characteristic wind load Wk The corner panel is subjected to local wind suctions. From CP 3 Chapter V total coefficient of wind pressure Cp-Cpl -1.1 0.2 1.3 The design wind velocity v vs s. where 51 53 1. Using ground roughness Category 3 Class A and height of the building 21m therefore 2004 Taylor Francis s3 0.956 Therefore V 50 xl xl X 0.956 47.8m s and dynamic wind pressure 0.613 X 47.8 2 103 1.4kN m2 Now Wk 1.4 X 1.3 1.82 kN m2 suction design moment in panel a Wk 7f L2 clause 36.4.1 aspect ratio of panel 2.85 4.25 0.67 therefore a 0.032 table 9 ụ. 0.33 from table 3 design moment 0.032 X 1.82 X 1.4 X 4.25 2 1.47kNm m Note that yf is taken as 1.4 since inner leaf is an important loadbearing element. The designer may however use yf 1.2 in other circumstances. design moment leaf 1.47 2 0.736kNm m isince both leaves are of equal stiffness design moment of resistance kxZ m where 7m 3.5 kx 1000 X 102.52 6 X 3.5 500 298 kxmm3 m Therefore ykx 0.736 X 106 500 298 1.47N mm2 1.5N mm2 Use bricks having water absorption less than 7 in 1 1 6 mortar. 12.9 DESIGN FOR ACCIDENTAL DAMAGE 12.9.1 Introduction The building which has been designed earlier in this chapter falls in Category 2 table 12 BS 5628 and hence the additional recommendation of clause 37 to limit the extent of accidental damage must be met over and above the recommendations in clause 20.2 for the preservation of structural integrity. 2004 Taylor Francis Three options are given in the code in Table 12. Before these options are discussed it would be proper to consider whether the walls A and B in the ground floor carrying heaviest precompression can be .