Answer:
A post-and-lintel system uses vertical posts which are separated to support a horizontal beam. The main problem that can occur with a post-and-lintel system is cause by the weight is unevenly distributed and the center is unsupported, which can cause sagging over time. Stonehenge is an example of an ancient structure that used a post-and-lintel system.
Explanation:
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The post-and-lintel system is a simple method of construction involving the use of vertical and horizontal elements. The verticals support the horizontals, creating one story of a building. Additional verticals can be placed atop the horizontals to create structures with more than one level.
A post-and-lintel system uses vertical posts which are separated to support a horizontal beam. The main problem that can occur with a post-and-lintel system is caused by the weight being unevenly distributed and the center being unsupported, which can cause sagging over time.
Stonehenge is an example of early post-and-lintel construction. The job of the lintel is to bear the loads that rest on it (and its own load) without deforming or breaking. Failure occurs only when the material is too weak or the lintel is too long.
Learn more about the post-and-lintel system here: brainly.com/question/2297566
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