The development process and characteristics of scaffolding

The development process and characteristics of scaffolding

Scaffolding is a working platform set up to ensure the smooth progress of each construction process. According to the location of the erection is divided into external scaffolding, inner scaffolding; According to different materials can be divided into wood scaffolding, bamboo scaffolding, steel scaffold; According to the structural form, it is divided into vertical pole scaffold, bridge scaffold, portal scaffold, hanging scaffold, hanging scaffold, jettied scaffolding, climbing scaffold.

Content list

The development process of scaffolding

The development trend of scaffolding

Characteristics of scaffolding

The development process of scaffolding

In the early 1980s of last century, portal scaffold, bowl buckle scaffold and other types of scaffolding were introduced from foreign countries. Portal scaffolding has been widely used in many projects in China and achieved good results. Due to the quality problems of portal scaffolding products, this kind of scaffolding has not been widely used. In the domestic and built a batch of door scaffolding production factory, most of its products are processed according to foreign drawings. Bowl buckle scaffold is the most widely used scaffold in the new scaffold,however, the usage scenario is limited, only in some areas and some projects.

Since 1990s, some domestic enterprises have introduced foreign technology and developed a variety of new scaffolders, such as latch scaffold, CRAB module scaffold, disk scaffold, square tower scaffold and various types of climbing scaffolders. By 2013, there were more than 100 professional scaffolding manufacturers in China, mainly in Wuxi, Guangzhou, Qingdao and other places. Technically speaking, our country scaffold enterprise HAS already had the ABILITY to process and produce various new scaffold. But the domestic market has not yet formed, construction enterprises to the new scaffolding understanding is not enough.

The development trend of scaffolding

With the emergence of mass modern large-scale building systems in our country, the fastener-type steel pipe scaffolding can no longer meet the needs of building construction development. It is urgent to vigorously develop and promote the application of new scaffolding. Practice has proved that new scaffolding is not only safe and reliable , but also fast in assembly and disassembly, and the amount of steel used in scaffolding can be reduced by 33%, the efficiency of assembly and disassembly can be increased by more than two times, the construction cost can be significantly reduced, and the construction site is civilized and clean

Characteristics of scaffolding

Compared with the general structure, the working conditions of scaffolding have the following characteristics:

1. The load variability is large;

2. The joints connected by fasteners are semi-rigid, and the rigidity of the joints is related to the quality of fasteners and installation quality, and the performance of the joints varies greatly;

3. Scaffold structures and components have initial defects, such as initial bending and corrosion of rods, erection dimensional errors, load eccentricity, etc. are relatively large;

4. The connection point with the wall has a large constraint variation on the scaffolding. The research on the above problems lacks systematic accumulation and statistical data, and does not have the conditions for independent probability analysis. Therefore, the value of the structural resistance multiplied by an adjustment factor less than 1 is determined by calibration with the safety factor used in the past. Therefore, the design method adopted in this code is semi-probability and semi-empirical in essence. It is the basic condition for design calculation that scaffolding meets the construction requirements stipulated in this code.

Do you know more about scaffolding? Hope this article helps you! If you are interested in scaffolding, our website is https://www.zeemoconstruction.com/. Looking forward to your arrival.