Layout of reinforcement in basement roof: multi-angle analysis and construction precautions

The arrangement of reinforcement on the concealed beam of the basement roof is a complex problem, and many factors need to be considered. This paper will discuss this issue from many angles to help readers better understand this issue.

Double-layer bidirectional reinforcement mode

In order to ensure the stability and bearing capacity of the basement roof, double-layer bidirectional reinforcement is usually adopted. This configuration not only increases the strength of the roof, but also optimizes its carrying capacity.

Resist pressure caused by temperature change

In order to resist the stress caused by temperature change, it is often necessary to add temperature stress reinforcement to the roof. In this case, if the reinforcement of the roof is only configured according to the building standards, it is the best choice to set it as double-layer bidirectional.

Slate around the big hole

For the plate with large openings around it, in order to enhance its stiffness, we also adopt the method of double-layer bidirectional reinforcement. In the case of thick plate conversion and sloping roof, it is also common to use long double-layer reinforcement.

The upper reinforcement of the special-shaped plate is pulled through.

The upper reinforcement of the special-shaped plate is usually pulled through. This is done in order to provide stronger support at the position of large cantilever and ensure that the cantilever will not crack due to deformation.

The outermost span of a building.

For the outermost span plate of the building, we also suggest that the steel bars should pass through it. The purpose of this is to enhance its ability to resist temperature stress, thus reducing the occurrence of cracks.

Matters needing attention in construction

In order to ensure the construction quality and waterproof effect, it is necessary to pay attention to the cleaning and inspection of the floor coating waterproof layer after construction, as well as the special treatment of weak links such as yin and yang angles, pipe roots and construction joints.

Concrete surface problem

Once the civil contractor completes the construction of the basement floor and structural wall, it is necessary to carefully check whether there are problems such as honeycomb, pits and holes on the concrete surface. If this happens, it must be repaired with polymer mortar to ensure that the coating waterproof layer can be perfectly combined with the concrete surface.