Lintel Definition | 06 Types of Lintel

Lintel Definition

A lintel is a concrete structure/ element placed above the openings like windows, doors, etc. Also, it bears the load from the structure above the buildings. Normally, The width of the lintel beam is equal to the width of the wall, and the ends of it are built into the wall. In this article, we'll discuss about lintel definition, types of lintel, and their application.

Horizontal lintels are easy to construct as compared to arches. Nowadays, There is precast concrete lintels are available in the industry. Lintels can be classified based on their material of construction.

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Bearing of Lintel

The bearing provided should be the minimum of the following 3 cases.
10 cm
Height of beam
1/10th to 1/12th of the span of the lintel.

lintel definition | types of lintel

Types of Lintel used in Building Construction

Lintels are classified based on the material of construction as:

1. Timber Lintel

In the past days of construction, Timber lintels were principally used. however these days they're replaced by many fashionable techniques, however, in mountainous area unitas these are victimisation. the most disadvantages of timber area unit a lot of price and fewer sturdy and liable to hearth.

If the length of the gap is a lot of, then it's provided by connection the multiple numbers of picket items with the assistance of steel bolts that was shown in fig (a). within the case of wider walls, it's composed of 2 picket items unbroken at a distance with the assistance of packing items manufactured from wood. Sometimes, these area unit reinforced by the supply of low-carbon steel plates at their high and bottom, known as flitched lintels.

2. Stone Lintel

These area unit the foremost common kind, particularly wherever the stone is profusely on the market. The thickness of those is that the most vital consider its style. These are provided over the openings in brick walls. Stone beam is provided within the variety of either one single piece or over one piece.

The depth of this kind is unbroken capable ten cm/meter of the span, with a minimum worth of fifteen cm. they're worn-out to spans of two meters. within the structure is subjected to vibrating hundreds, cracks area unit fashioned within the stone beam as a result of its weak tensile nature. thus caution is required.

3. Brick Lintel

These area unit used once the gap is a smaller amount than 1m and lesser hundreds area unit acting. Its depth varies from ten cm to twenty cm, relying upon the span. Bricks with frogs area unit a lot of appropriate than traditional bricks as a result of frogs once stuffed with mortar offer a lot of shear resistance of finish joints that is thought as a joggled brick beam.

4. Reinforced Brick Lintel

These area unit used once hundreds area unit significant and span is larger than 1m. The depth of bolstered brick beam ought to be capable ten cm or fifteen cm or multiple of ten cm. the bricks area unit thus organized that two to three cm wide house is left lengthwise between adjacent bricks for the insertion of low-carbon steel bars as reinforcement. 1:3 cement mortar is employed to extra service the gaps.

Vertical stirrups of six metric linear unit diameter area unit provided in each third vertical joint. the most reinforcement is provided at very cheap consists of eight to ten metric linear unit diameter bars, that area unit cranked up at the ends.

Lintel Definition

5. Steel Lintel

These area unit used once the superimposed hundreds area unit significant and openings area unit massive. These contains channel sections or rolled steel joists. we will use one single section or in combos relying upon the necessity.

When used one by one, the steel beam is either embedded in concrete or cladded with cladding to stay the dimension constant because the dimension of the wall. once over one units area unit placed facet by facet, they're unbroken in position by tube separators.

6. Reinforced Cement Concrete Lintel

At present, the beam manufactured from concrete is wide accustomed span the openings for doors, windows, etc. during a structure as a result of their strength, rigidity, hearth resistance, economy, and ease in construction.

These area unit appropriate for all the masses and for any span. The dimension is capable the dimension of the wall and depth depends on the length of the span and magnitude of loading. the most reinforcement is provided at very cheap and 1/2 these bars area unit cranked at the ends.



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