| 摘要 |
he keys and the connector that transform an angular pillar into a square one, reducing the duration of the construction and providing great strength in concrete laying are characterised by that they consist of metallic blades and bear holes in one,two or three rows so that the dimensions required can be modified and in order to withstand the pressure of the concrete, have different thickness, length or width according to the needs of the pillar The material is made from different artificial materials or is cast and is fitted internally to the angle of the pillar increasing or reducing the required dimension, increasing the strength and reducing the duration of the construction. By fitting the keys with the two heads together, the edges "run" from the spaces left open in the wooden mould; the connector is fitted to the opposite angle, whereas in the other two angles (always internally) they are wedged with the use of wedges; inside the pillar keys or beams are fitted. The keys and the connector can be used externally, depending on the needs of the works. |
