R. K. Punhani

Abstract

This paper contains tables of standard sizes of purlins and ceiling joists for housing in some Social Forestry species. This will serve as a ready reckoner for designing, construction and inspection of house construction in Social Forestry timbers. This will also help architects, builders and designers to use these tables withoust going in for detailed calculations.

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K. S. Pruthi , R. K. Punhani , Jeet Singh

Abstract

Scientific studies on nailed joints have opened up new vistas for the wise and economic use of shorter lengths of planks/scantlings of secondary species in timber structures. As a pre-requisite to design, the lateral resistance to which nails are subjected by wood in structures has to be determined through laboratory tests. In this paper permissible nail-bearing strength in atleast 39 species for varied possible parameters are given along with their scope and application limitations.

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R. K. Punhani , K. S. Pruthi

Abstract

Common Wire Nails have been found to be one of the effective fasteners in any structural/joinery work. Determination of nail strength is a pre-requisite for systematic design and construction of nail-jointed timber units. Neem, being a plantation grown timber should gain momentum in utilization to prOvide timber for shelters in rural and semi-urban areas, food and fodder to the needy. Lateral nail strength values of 3.55 mm and 5 mm dia nails for this timber have been reported in this paper for double shear joints. The research data would enable the designers to properly utilize short length small dimensioned stock of timber in design and construction of nailed timber structures bearing light and medium loads.

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R. K. Punhani , Mulayam Singh , R. N. Mishra

Abstract

Nail is an economical and simple jointing device for wood members in Timber Structures such as roof trusses columns, beams etc. The lateral strength of 5 mm dia (6 S.W.G.) nails iu double shear in Terminalia alata (Sain) determined through laboratory tests has been reported in this paper to enable the structural engineers to use this data in the design and construction of Timber Structures.

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