GATE SCAFFOLDING

Gate Scaffolding is used in construction scaffolding, one of the most widely used scaffolding. Since the main frame was “door” type, so called door or door-type scaffolding, also known as scaffolding or gantry. This scaffold consists of main frame, horizontal frame cross bracing, scaffold boards, adjustable base and other components.

Scaffolding fastener having removable flexible, convenient transport, versatility and so on. Therefore, in our country it is widely used in the scaffolding, which accounts for more than 60% use, most current usage, the most common type of scaffold. However, this scaffold security assurances poor construction efficiency is low, can not meet the need for capital works development.

Gate Scaffolding is not a long time in our production and use of various research units developed scaffolding, self-contained, and do not GM, variety of different specifications. Some manufacturers copying foreign products, using inch sizes. Gate Scaffolding far there is no unified design and product standards, product specifications of each plant is different, inconsistent quality. Not only caused great difficulties to the construction units to use and manage, is not conducive to the promotion of applications. But also to the construction safety and security. Therefore, we should organize the preparation and issuance of Gate Scaffolding uniform standards as soon as possible. Gate Scaffolding in standardization, the main problems are:

1. Scaffolding Part name inconsistency

Call domestic plants gantry scaffolding major components inconsistent. Each have a name, to promote the use of scaffolding great inconvenience.

2. The main components Size range

Gate Scaffolding world standard size range, there are two kinds of international units and imperial units of measurement. As the width of the 1219-type gantry imperial units for the 4 ‘(1219mm), height of 6’4 “(1930mm), width 1219 international units of type mast is 1200 mm, height 1900 mm. Each scaffolding foreign companies mast main 900,914,1200,1219 mm width of four, mast height of many sizes, self-contained set system.

Several manufacturers of the product specification is far from uniform, imitation foreign product specifications, there are also domestic research institutes to design a system, there is the use of inch sizes, there is also an international system of units dimensions. Inch dimensions such as the width of the door frame is 1219mm, the International System of Units is 1200mm, and 1829mm respectively from the frame 1830mm ,, Because these different dimensions, so can not interoperability between the door frame. Another example is the mast height and size have more than eight, the gap size between the connecting pins are also a variety, resulting in a lot of cross-bracing of varieties.

3. Scaffolding used different pipe cross-sectional dimension

Foreign-door-type scaffolding steel material dimensions and materials have special requirements. Japanese standards such as the door scaffold pole with the main components made of steel STK-51 number, size 42.7 × 2.5mm, the auxiliary lever and the materials for the STK-41 gauge steel, the size of? 34.2 × 2.3mm and 27.2 × 2.0 mm. for a door of no special steel scaffolding, research units required by the design pipe size and custom size often does not arrive, so that some manufacturers were forced to use a large wall thickness water gas pipes. Such pipe diameter and wall thickness used in the plant is not uniform, so that even a consistent mast dimensions, due to the different cross-sectional dimensions of the steel pipe, the plant’s mast is still not universal. In addition, the use of thick-walled steel pipe, so that the amount of steel door scaffold increases.