Post+and+lintel


 * Post-and-Lintel **

 Building systems can be post-and-lintel, vaulted or internal structures.

** Post-and-lintel ** 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.

** Post: **  The job of the post is to support the lintel and its loads without crushing or buckling. it is strong in compression.  Masonry post, including those of brick, may be highly efficient, since the loads compress the joints and add to their cohesiveness.

** Beam or lintel: **  - The job of the beam or lintel is to bear loads that rest on it, also includes its own weight.  - The beam has to be able to support weight without deform or break.

** 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.  - Steel is strong in bending.

** Cantilever Beams: **  A cantilever beam is a beam that is anchored only at one end.

**<span style="font-family: 'Arial','sans-serif'; font-size: 18.6667px;"> Failures: ** <span style="font-family: 'Arial','sans-serif'; font-size: 18.6667px; text-align: justify;"> Failure 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.