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Construction for Landscape Architecture by Jamie Liversedge, Robert Holden

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BOLTS, RIVETS, AND PLATE CONNECTORS

Like screws, bolts are threaded but they are designed to fit parts which already have holes, and are tightened with a screw-fixed nut. Bolts are usually used with washers, which are thin circular plates—also with a hole—which spread the load of the nut. When tightened, bolts are in tension, and do not have particularly great lateral, shear strength.

Rivets consist of a smooth cylinder with a curved head. They are placed into preformed holes, and the protruding end is flattened in order to expand it and ensure a permanent fix. Effectively, rivets have “heads” at both ends, so they work well in tension and were typical of iron- and steelwork until the 1950s. There are several varieties of rivet, such as solid ...

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