Waffle roof reinforcement is important for owners of places and complexes that use this type of roof. To examine the strengthening of this type of structure, It is best to first look at its nature and then pay attention to possible suggestions and recommendations to strengthen it.
The first question that arises is what is a waffle ceiling?
The name of the waffle should be familiar to you, It is a type of breakfast pancake and ice cream bread that is shaped like regular grids and has interesting designs. When discussing structures, Ceilings similar to these designs are made of concrete and are implemented on the ceilings of various places.
This type of roof is usually used, Which is known as regular sided grid plate, At the entrances to hotels, shopping malls, restaurants and places where artificial light is used, of course. Therefore, strengthening the waffle roof is very important.
This type of concrete structure has higher resistance than flat floors and is lighter in weight, Although it can be used in both modes. also , In cases where there is a limit to the depth of columns, They are used to display the main elevation.
Waffle roof reinforcement is a topic related to strengthening the life, quality and load bearing capacity of this type of structure, Which is usually considered more important because of its implementation in public places.
Waffle plate construction is generally suitable for flat areas. The amount of concrete used in waffle slabs is less compared to other types. Waffle layers have good shrinkage resistance. A waffle board is a structural component that is hollow on top and has a grid-like structure on the bottom. Waffle board can be used for floor and ceiling.
Flat slabs do not build for a long period of time and cracks may develop. But according to waffle roof reinforcement protocols, Waffle tile is a special type of tile that is primarily built to last and is resistant to cracking and sagging.
Waffle roof tiles are classified into the following types based on the shape of the tile (PVC sheets):
1. Triangular structure – sheath
2. Square-sheath structure
What are the importance, benefits and disadvantages of using waffle ceilings?
Like other structures, The waffle roof also has advantages and disadvantages that may appear during or after implementation. But experience has shown that its advantages outweigh its disadvantages. Briefly , Some of its advantages can be mentioned
1. Because waffle ceilings are lighter in weight, Waffle tiles can carry heavier loads and longer than flat tiles.
2. It is suitable for distances of 7-16 meters.
3.The waffle tile can be used as ceiling and floor.
4. These structures are light, So using the light frame, Significant savings can be achieved on the main structure structure.
5. Waffle is used for ceilings and large openings and can also be used when the number of columns is limited.
6. Waffle ceilings have good strength in addition to beautiful appearance, For this reason , Waffle ceilings are used in airports, hospitals, etc. Uses
7. Waffle roofs can be made of concrete, and steel, and wood, etc. Concrete is recommended for use in commercial buildings, Steel and steel can be used in repair shops. and exhibitions, and halls, As well as strengthening the waffle roof with the least facilities and the simplest methods applicable.
Disadvantages of waffle ceilings and panels
But its faults are mainly related to its beauty and efficiency,But its faults are mainly related to its beauty and efficiency, There is less debate about their quality. Waffle board is not used in regular construction projects. The casting shapes or molds required for prefabricated units are expensive and are therefore only cost effective if mass production of similar units is required. Construction requires careful supervision and skilled labor.
لا يستخدم لوح الوافل في مشاريع البناء النموذجية لأنها باهظة الثمن ، It is therefore cost effective only when large scale production of similar units is required. at the same time , Construction requires careful supervision and skilled labor.
What points should we pay attention to in the process of strengthening the waffle roof?
Reinforcement with FRP or more precisely reinforcement and repair of a waffle roof using FRP glass and carbon fibers can be very effective and efficient. Since the bending capacity of the slab is caused by the internal action of tensile and compressive forces, FRP composite can be implemented in order to increase the tensile strength in the direction in which the tensile force is applied. According to the type of need and repair of waffle roof, Cracks on the roof surface can be repaired using concrete injection, plaster, or epoxy glue to prevent them from spreading and causing serious damage to the roof.
But a very modern and most popular method of strengthening and repairing a waffle roof is the use of FRP fibers, Which, in addition to covering the cracks resulting from increased load capacity and increased bending strength of the roof, It prevents cracks and cracks in the ceiling. Another way to increase the bearing capacity and increase the bending strength of the roof is to use FRP sheets on the bottom surface of the roof.
Since the bending capacity of the slab is caused by the interaction of tensile and compressive forces, FRP composite can be implemented in order to increase the tensile strength at the face where the tensile force is applied and ultimately strengthen the waffle roof.
In most cases, The slab has sufficient compressive strength and does not need reinforcement, But if necessary, FRP composite can be used as part of a facial strengthening plan where compressive force is applied.