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Templates (templates) for different structural members – beams, plates, columns, foundations

New concrete structures require concrete formwork (louvers) such as walls, slabs, beams, columns, footings, etc. The template requirements for different structural members are different and they are named according to the type of structural member.

The formwork (template) is a temporary mold that provides support for the fresh concrete when placed in the structural member until the concrete solidifies. This helps the structural member to obtain sufficient strength to carry its own load and load from other components.

There are many types of structural templates or templates depending on the material, the use of the material and the type of structural member. They can be named based on this. However, the core functionality of the template remains the same.

Structural component based template type (template):

 

The formwork is used for the construction of reinforced concrete foundations, columns, slabs, walls, etc., which are named as follows:

Basic form – basic template
Column form – template for RCC column structure
Wall formwork – RCC wall structure formwork
Floor form – template for the construction of RCC

Basic Form – Template for the Foundation

The first step in any concrete construction begins with the foundation construction. The foundation can be used for columns or walls. Therefore, based on the type of structural member, the basic shape and size are designed. Therefore, the size and shape of the template depend on the type and size of the footing.

Footing Forms – Formworks for Foundation

Column form – concrete column construction formwork

The reinforced concrete column form is subjected to lateral pressure due to its small cross section, high height and relatively high concrete pouring rate. Therefore, it is necessary to provide a tight joint and a firm joint support for the formwork.

As the size of the concrete column increases, the stiffness of the formwork must be increased by increasing the thickness of the sheath, or vertical stiffeners must be added to prevent the sheath from deflecting.

column-forms-formwork-for-reinforced-concrete-columns

Wall Forms – Formwork for RCC Wall Construction

Formwork for wall construction are subjected to relatively lower lateral pressure than column forms due to their large cross-sectional area.

The components of wall forms are:

Components of a RCC Wall Formwork

Fig: Components of a Wall Formwork

Floor Forms – Formwork for construction of RCC Slabs

Formwork for reinforced concrete slabs depends on the type of slabs to be constructed. The floor slabs can be structural slabs supported on a steel or concrete structural frame, or slab-on-grade.

The design of formwork varies with the type of slab.

Structural Slab Formwork assembly is carried out as follows:

Structural Slab Formwork Components

Fig: Structural Slab Formwork Components

Slab-on-Grade Forms are forms for concrete slabs placed on grade. These slab formworks are usually quite simple as concrete is placed on compacted earth or gravel leveled base. Thus no support is required for concrete at the bottom.

Components of a Slab-on-Grade Slab Formwork

Fig: Components of a Slab-on-Grade Slab Formwork

The slab plate template is assembled as follows:

Sheets, plywood or steel sheets are used to form/support the open edges of the concrete.
These forms are fixed by stud support.
The reinforcement in the slab (if stated in the structural drawing) should be placed on the chair, the backing plate and the gasket made of metal or concrete according to the drawing.
If the slab is to be cast in sections, a structural joint must be placed between them so that the cut can be transferred from one to the other. The details of the construction joint should be followed according to the structural drawing.

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