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The Wood method, also known as the Merchant–Rankine–Wood method, is a structural analysis method which was developed to determine estimates for the effective buckling length of a compressed member included in a building frames, both in sway and a non-sway buckling modes. [1] [2] It is named after R. H. Wood.
For a compression member, such as a column, the principal stress comes mainly from axial forces, that is forces that fall along one line, usually the centerline. [1] The loading capacity of a short column is determined by the strength limit of the material. The strength of a column of intermediate size is limited by its degree of inelasticity.
It applies for civil engineering works from solid timber, sawn, planed or in pole form, glued laminated timber or wood-based structural products, (e.g. LVL) or wood-based panels jointed together with adhesives or mechanical fasteners and is divided into the following parts. EN Eurocode 5 is intended to be used in conjunction with:
It is used for beams, headers, columns, and posts, among other uses. The strands in PSL are clipped veneer elements having a least dimension of not more than 1 ⁄ 4 inch (6.4 mm) and an average length of at least 300 times this least dimension (around 6 ft or 1.8 m). [ 1 ]
The term column applies especially to a large round support (the shaft of the column) with a capital and a base or pedestal, [1] which is made of stone, or appearing to be so. A small wooden or metal support is typically called a post. Supports with a rectangular or other non-round section are usually called piers.
Dougong is part of the network of wooden supports essential to the timber-frame structure of traditional Chinese building. Dougong serve as a connection between the vertical columns and horizontal beams of a structure, capturing the weight of a larger surface area of each beam and transferring it vertically through the column. [2]
The column is free from initial stress. The weight of the column is neglected. The column is initially straight (no eccentricity of the axial load). Pin joints are friction-less (no moment constraint) and fixed ends are rigid (no rotation deflection). The cross-section of the column is uniform throughout its length.
Heights ranging up and down from the most common 18–30 inches (46–76 cm) range, often reflecting the height of chairs or bar stools used as seating for people making use of a table, as for eating or performing various manipulations of objects resting on a table; A huge range of sizes, from small bedside tables to large dining room tables ...
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