How to prevent the expansion of municipal steel formwork and how to assemble

steel formwork is often used in municipal engineering, which may cause The steel template expands and leaks the slurry and so on. So how to prevent the expansion of municipal steel formwork? Let’s learn about it with Hubei Wangke Template Co., Ltd.:

to the opening of the wall, it is easy to increase the mold, the main reason is that the template here is not easy to reinforce, the beam span The middle part of the beam will also sink due to not arching as required, and the middle part of the two sides of the beam, especially the middle part of the outer side of the peripheral beam, is prone to mold expansion.

1. The upper part of the main beam has a slab, and the upper part cannot be tightened when the beam is strengthened. The middle part needs to be supported by a support rod. The top brace, and because the outer frame can only be top braced on the outer side of the peripheral beam, it has a great impact on the reinforcement of the formwork, causing the formwork to be weakly reinforced, resulting in the phenomenon of formwork expansion during concrete pouring. The beam and column joints and the wall and column joints are prone to mold expansion.

2, cracks are easy to appear at the nodes, and the reinforcement quality of the template at the nodes is difficult to control, it is not a template If there is no edge, the templates eat each other.

In addition, the back edge of the formwork or the top bar is sometimes not in place during reinforcement, so preventive measures: formwork design and load combination Nowadays, wood mold system is mostly used, because its technical indicators are measured when the material is dry, and its strength will be reduced after soaking in water. Therefore, when calculating the distance between steel pipes for reinforcement and the tension bolts, it should be reduced by 15-20% compared with the normal calculation.

Steel formwork is a kind of temporary support structure. It is a formwork and bracket formed by concrete pouring, which is modern Among the template technology, there is a new template with the characteristics of strong versatility, convenient assembly and disassembly, and many turnover times. Steel formwork is a steel formwork used for concrete pouring and molding, which can be used multiple times, and the concrete pouring and molding are beautiful, and it is widely used in the construction industry.

When designing and manufacturing bridge steel formwork, it must have sufficient strength, rigidity and stability to reliably withstand formwork construction All construction loads specified in the code, and ensure that the deformation does not exceed the allowable range. Moreover, it should be easy to install and dismantle, and try to be standardized and serialized. Templates with special requirements or complex operating procedures should also formulate operating procedures.

Attention should be paid to the following points when assembling bridge steel formwork:

(1) Before assembling the template, check the components of the template system and check the appearance. There are serious defects and collisions. Defective parts such as damage, deformation, etc. shall not be used.

(2) The assembly site must have a technician for technical guidance.

(3) The components of the template system are firmly connected, and the assembled template should be placed neatly according to its structural characteristics , To ensure stability.