By C. Wilby
Concrete folded plate roofs used to hide huge open expanses of house can pose advanced layout difficulties soluble merely via specific mathematical research. This ebook introduces the engineer to sensible schemes and practicalities, and is going directly to offer multitudes of precious layout tables, which enable linear interpolation, for a wide variety of assorted schemes of folded plate roofs to aid the engineer along with his designs. layout examples utilizing either SI and united states (British Imperial) devices are supplied utilizing those tables.
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Additional info for Concrete Folded Plate Roofs
O r nsion Fig. 1 26 Concrete Folded Plate Roofs I_.. - 9 . 101 E r r I 'v-- ,, 1 1 II ,,, Fig. 101 MPa will have, say, a cosine distribution from the centre to the support (or a parabolic distribution - maximum at the centre and zero at the supports) so it will not relieve the diagonal tensile stress due to the maximum shear stress. 17 psi). 5 psi), but the author prefers the limits recommended in Ref. 5447 MPa (79 psi). Whichever way, no shear reinforcement is required. 2. 375 in diameter at 9 in centres).
Refer to Figs A11 and A12. 15 BS CP3 (1972) Chapter 5, Loading. 1 (1971) Building Code Requirements for Minimum Design Loads in Buildings and Other Structures, USA Standards Institute, New York. Winter, G. H. (1972) Design of Concrete Structures, Ninth Edition, McGraw-Hill, New York, USA. BS 6399 (1995). Parkinson, J. (1982) Roof shape is key to snow load, New Civil Engineer, January. E (1948) Strength of Materials, Part 2. Advanced Theory and Problems, D. , New York and London. ACI 318-89, AC1318R-89 (1989).
94 psf) multiplied by the sloping area of the roof. This means that, for the USA, a possible loading of sloping area is, for example, as follows. e. e. 9 psf) Factors used in the design tables 15 Alternatively, say, a possible loading of sloping area is as follows. e. e. 9 psf) Concerning loading due to wind, snow and maintenance the British Code of Practice, Ref. 1, has been replaced by Ref. 4 which says that Ref. 1 can still be used as an alternative. e. as per the design tables in this book) the author calculated using Ref.