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Showing results for tags 'Zone 4'.
Found 3 results
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Dear all, Salam... I am designing one storey frame in seismic zone 4 (quetta) using ETABS v 9.7.2...building is a RCC bunker (105'X38') with adjacent office area (105'X50').. since RCC bunker has walls and slabs of thicknesses upto 4' and 8' thick... it becomes very stiff structure..how will frame structure for office adjacent to it will perform... guide me if I can take it as Non sway structure (office area) or not or I may design it by selecting SMRF option only in design preferences...kindly give me also literature/code reference for choosing SMRF/Nonsway criteria in zone 4 area of Pakistan....
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Assalam o alaikum. According to 21.5.1, width of beams must satisfy the following 1. Clear span ln ≥ 4 effective depth General 2•Width to depth ratio bw/h ≥ 0.3 3.Width bw ≥ 10 in. It means, i can provide 10 inch thickness in zone 4, if it is satisfying above 3 clauses. Is there further limit?
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Assalam o alaikum, Is there any restriction on diameter of shear hoops in seismic zone 4? We can not provide less than 3/8 in stirrups. But for seismic zone 3,4 is there any further restriction regarding size of stirrup? My main concern is to know whether i can use 3/8 in dia stirrups hoops in zone 4 if it is satisfying spacing limits and required shear ratio? Thanks.
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