POST AND LINTEL

Ma.Carlota Fermín 10-10238Jorge Matheus 08-10712

CONTENTIntroductionDefinitionHistoryPostBeanSpan Material RelationsCantilever BeansFailuresConclusion

INTRODUCTIONBuilding systems can be post-and-lintel, vaulted or internal structures. There are

several ways to build according to the type and location. How to build depends on the technological level of the community that

builds and the needs they manifest.

In any case, the construction system uses by a community reflects part of his personality

as the building is a way to transform the environment adapted to the human needs.

Ever since man left the shelter that provided the cave, until now, there have been three

different building systems: lintel, domed and internal structures.

DEFINITION Is a simple construction method

using a lintel, header, or architrave as the horizontal member over a building void supported at its ends by two vertical columns, pillars, or posts. This architectural system and building method has been commonly used for centuries to support the weight of the structure located above the openings created by windows and doors in a bearing wall.

HISTORY From prehistoric times to the Roman Empire, the post –

and – lintel system was the root of architectural design. The interiors of

Egyptian temples and the exteriors of Greek temples are delineated by columns

covered by stone lintels. The Greeks opened their interior spaces by substituting wooden

beams for stone, since the wood required fewer supports. The development of the

arch and vault challenged the system but could not diminish its importance either in

masonry construction or in wood framing, by its nature dependent on posts and beams

POSTThe job of the post is to support the lintel and its loads

without crushing or buckling. Failure occurs, as in lintels, from excessive weakness or length, but the

difference is that the material must be especially strong in compression. Stone, which has this property, is more versatile as a post than as a lintel; under heavy loads it is superior to wood but not to iron, steel, or reinforced concrete. Masonry post, including those of brick, may be highly efficient, since the loads compress the joints

and add to their cohesiveness. Although monolithic stone columns are used, they are extravagant to

produce for large structures, and columns are usually built up of a series of cylindrical blocks called drums.

BEAN-The job of the beam or lintel is to bear loads that rest on it, also includes its own wheigth.

-The beam has to be able to do this without deformor break

load

BEAM or LINTEL

Span-Material Relations

The span between the column or post depends on the

bending resistance of the material of the

beam.Stones are weak in bending, the span it

smallerSteel is strong in

bending, so the use of steel beam can produce greater openings in a

structure, such as barns.

Cantilever BeamsA cantilever beam its a beam that is anchored only at

one end.

It is often used in architecture to

allow overhanging structures like building with

balconies, bridges and more.

FailuresFailure occurs when the

material is

to weak or the span is to long

to support the load.

This makes the beam bend or

break.

This aspect combined with

others

can cause many structural

accidents, destroying the

structure

like a house of cards

CONCLUSION- Form prehistoric times, the post and

lintel

System has been used for all kinds of

structures.

- Since the Roman and Egiptian temples

to the

evolution of frames and archs, the post

and lintel

system has remained as the basic idea.

CONCLUSION- Even now modern buildings use a basic

post

And lintel system idea. The engineers had

combined these two elements to create a

mushroom columns. This is column that

has a slab

at the end making it a column with support

fuction

it can become the ceiling of a structure.