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Stonehenge Inside Facing NE April 2005

Stonehenge is an example of post and lintel construction

Beautiful Post and Beam Timber Frame Barn

This timber frame is a more modern example of post and beam construction

Post and Beam Barn Kitchen

Here is a look at the interior of a hand hewn post and lintel home.

Post and lintel (or Post and beam) is a simple architrave[1] where a horizontal member (the lintel—or header) is supported by two vertical posts at either end. This form is commonly used to support the weight of the structure located above the openings in a bearing wall created by windows and doors.

LintelEdit

A lintel (or header) is a horizontal beam used in the construction of buildings, and is a major architectural contribution of ancient Greece. It usually supports the masonry above a window or door opening. (Also sometimes spelled 'lintol', 'lintil',' lyntil'.)

Lintels may be made of wood, stone, steel or reinforced or pretensioned concrete.

For example, at Stonehenge, stone lintels top off some of the megaliths. In typical homes today, lintels are commonly used in fireplaces where one will span the opening of the firebox. In this use they are most often steel, either straight for a square opening or arched for a more decorative effect.

TrabeatedEdit

In architecture, a trabeated system or order (from Latin trabs, beam; influenced by trabeatus, clothed in the trabea, a ritual garment) refers to the use of horizontal beams or lintels which are borne up by columns or posts. It is the opposite of the arcuated system, which involves the use of arches.

The trabeated system is a fundamental principle of Neolithic architecture, Ancient Greek architecture and Ancient Egyptian architecture. Other trabeated styles are the Persian, Lycian, nearly all the Indian styles, the Chinese, Japanese and South American styles.

A noteworthy example of a trabeated system is in Volubilis, from the Roman era, where one side of the Decumanus Maximus is lined with trabeated elements, while the opposite side of the roadway is designed in arched style.[2]

In India the style was used originally for wooden constructions, but later the technique was adopted for stone structures for decorative rather than load-bearing purposes.

Disadvantages Edit

The biggest disadvantage to a post and lintel construction is the limited weight that can be held up, and the small distances required between the posts. Roman developments of the arch allowed for much larger structures to be constructed.

There are two main force vectors acting upon the post and lintel system: weight carrying compression at the joint between lintel and post, and tension induced by deformation of self-weight and the load above between the posts. The two posts are under compression from the weight of the lintel (or beam) above. The lintel will deform concave up because the underside is under tension and the topside is under compression.

See alsoEdit

ReferencesEdit


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