Many times, when it comes to our bridge construction, the steel formwork we choose must have very good concrete quality, because the construction of concrete structures is very important to us.
The cost of formwork used in cast-in-place concrete structures is much higher than that of concrete structures. Therefore, we use advanced formwork technology to improve project quality and speed up construction, mainly by increasing labor productivity, reducing engineering costs, and achieving civilized construction.
So, after the bridge steel formwork, including special formwork, meets our basic cost requirements and important quality issues, let's briefly understand what regulations must be complied with for the installation and support of bridge steel formwork?
The bridge steel formwork and its supports should have sufficient bearing capacity, rigidity and stability, and be able to reliably withstand the weight/lateral pressure of pouring concrete and construction loads.
It is necessary to ensure the correct shape, dimensions, and mutual positions of various parts of the structural engineering and components.
The construction is simple and easy to install and disassemble, and it is convenient for tying and installing reinforcement steel, and meets the process requirements of pouring and curing concrete.
The joints of the bridge steel formwork should be tight, and there should be no leaking of mortar.
The quality of bridge steel formwork is closely related to the quality of our concrete engineering, so in construction engineering, we should choose suitable bridge formwork, because once the quality is not in place, it will also increase project costs, which is not good.
The compressive strength of the bridge steel formwork must be satisfied and shall not be less than 2~3 times the practical bending strength;
The number of joints should be minimized, and large formwork should be used as much as possible under construction conditions (lifting capacity, transportation conditions, etc.) to reduce on-site installation and dismantling workloads and facilitate faster construction.
When planning the joint of the bridge steel formwork, a certain number of positioning pins should be set up to facilitate the control of the displacement of the bridge steel formwork joints.
To prevent mortar seepage, the joint part of the two formwork should be planned in a yin-yang overlap manner.
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