Building Construction Handbook, Eighth Edition

Lorry Mounted Cranes ~ these mobile cranes consist of a lattice or telescopic boom mounted on a specially adapted truck or lorry ...

Lorry Mounted Lattice Jib Cranes ~ these cranes follow the same basic principles as the lorry mounted telescopic cranes but they ...

Track Mounted Cranes ~ these machines can be a universal power unit rigged as a crane (see page 178) or a purpose designed track ...

Gantry Cranes ~ these are sometimes called portal cranes and consist basically of two A' frames joined together with a cross mem ...

Mast Cranes ~ these are similar in appearance to the familiar tower cranes but they have one major difference in that the mast o ...

Tower Cranes ~ most tower cranes have to be assembled and erected on site prior to use and can be equipped with a horizontal or ...

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Concreting ~ this site activity consists of four basic procedures † 1. Material Supply and Storage † this is the receiving on si ...

Concrete Mixers ~ apart from the very large output mixers most concrete mixers in general use have a rotating drum designed to p ...

Medium Batch Mixers ~ outputs of these mixers range from 200 to 750 litres and can be obtained at the lower end of the range as ...

Transporting Concrete ~ the usual means of transporting mixed concrete produced in a small capacity mixer is by wheelbarrow. The ...

Concrete Pumps ~ these are used to transport large volumes of concrete in a short time period (up to 100 m^3 per hour) in both t ...

Placing Concrete ~ this activity is usually carried out by hand with the objectives of filling the mould, formwork or excavated ...

Power Float † a hand-operated electric motor or petrol engine, surmounted over a mechanical surface skimmer. Machines are provid ...

4 SUBSTRUCTURE FOUNDATIONS † FUNCTION, MATERIALS AND SIZING Foundation beds Short bored pile foundations Foundation types and se ...

Foundations ~ the function of any foundation is to safely sustain and transmit to the ground on which it rests the combined dead ...

Subsoil Movements ~ these are due primarily to changes in volume when the subsoil becomes wet or dry and occurs near the upper s ...