Daniela Zarichta - PowerPoint PPT Presentation

Title: Daniela Zarichta


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POST LINTEL

• Presented by
• Daniela Zarichta
• 05-39079

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Table of contents
Table of contents

• Definition of post and lintel
• Lintel
• Post
• Ancient architectural styles
• Uses in modern architecture

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Definition
Post and lintel is a construction technique,
where a horizontal member (lintel) is supported
by two vertical posts at either end. This very
simple form is commonly used to support the
weight of the structure located above the
openings in a bearing wall created by windows and
doors.
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Lintel

• Is a horizontal beam used in the construction of
  buildings
• Is a major architectural contribution of ancient
  Greece.
• The job of the lintel is to bear the loads that
  rest on it, (as its own load) without deforming
  or breaking.
• Failure occurs when the material is too weak or
  the lintel is too long.
• May be made of wood, stone, steel or reinforced
  or pre tensioned concrete.

LINTEL
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Post

• The job of the post is to support the lintel
  weight and the load above it without crushing or
  bulking.
• Failure occurs for excessive weakness or length
• The material must be specially strong in
  compression.
• The posts or columns are made of stone, steel,
  concrete or reinforced concrete.
• Masonry posts, including those of bricks, may be
  highly efficient

COMPRESSION FORCES
Posts
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Trabeated System
The post and lintel structure can be repeated
many times, to form forming decks that can become
roofs or be occupied as floors. The trabeated
system is a fundamental principle of Neolithic
architecture, Ancient Greek architecture and
Ancient Egyptian architecture
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Ancient architecture styles

• Neolithic Architecture
• The Neolithic places were heavily
  constructed, with dozens of posts in the interior
  space, and this style of structure, where the
  weight of the roof is carried on posts buried in
  the ground, persists for most of prehistory

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Ancient architecture styles

• Greek Architecture

Greek architecture is characterized by post and
lintel stone and white marble construction and
columns in drum sections. 
The temples are understood as houses of the
deity, containing statues of the god or goddess.
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Ancient architecture styles

• Roman Architecture

The roman architecture is based mainly in the
Greek style. By this reason, the roman
architecture is based also in the construction of
structures made with stone or marble, using the
post an lintel technique
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Ancient architecture styles

• Chinese Architecture

The traditional timber hall in China has stayed
close to its Neolithic roots, with the weight of
the roof is still carried on posts rather than on
rigid walls.
Chinese architecture has its root in Neolithic
expression.
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Ancient architecture styles

• Japanese Architecture

Japanese architecture used Wood to build the
structures with post and lintel method.
Due the low weight of the Wood, the opening of
the windows and doors were large, and the walls
were thin.
Wood extracted from cypress trees was used to
elaborate the columns
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Ancient architecture styles

• Egyptian architecture

The buildings were erected without mortar, with
stones precisely cut and fixed together, forming
very tick walls.
The stone columns were closely spaced, with
massive lintels with short spans and openings,
because its were made with stone.
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Ancient architecture styles

• Indian Architecture

Many of the Indian architecture is a mixture of
styles of different ethnics. The use of sandstone
and marble in many structures is a Persian
influence.
the architectural use of a lintel is purely
ornamental in the case of Indian rock-cut
architecture
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Uses in modern architecture
Nowadays, the production of the cast iron and
steel columns and beams refined the post and
lintel technique, offering greater strength,
reduced mass and weight of the buildings.
Steel and reinforced concrete skeletons, the most
modern materials used besides wood, restore to
modern architecture the simplicity of the oldest
structures known.
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Uses in modern architecture
Windows

• Doors

Fireplaces
Frameworks
Porchs
Internal decortarion
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Conclusion

• Post and lintel is a simple construction
  technique for the creation of openings
• There is two main structural components THE
  LINTEL, which is an horizontal beam, supported in
  both ends by THE POSTS
• The lintel must be resistant in tension, while
  the posts should be resistant in compression
• Post and lintel is the basis of many of the most
  important ancient architecture styles around the
  world
• Nowadays, Post an lintel technique implies the
  use of Iron and steel for the creation of
  windows, doors, frameworks and other common
  features.