Post+and+lintel

__Post and lintel-Oral presentation __  Post and lintel is a simple construction method using a lintel, or header as the horizontal member over a building void supported at its ends by two vertical columns, pillars, or posts. -It can support a huge amount of weight and is effective for reinforcing tall buildings or heavy structures. -T wo 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. -Post and lintel construction-pieces must fit together exactly.

Materials Post material must be especially strong in compression: Stone has this property and is more versatile in its use as a post than as a lintel. Under heavy loads, stone is superior to wood but not to iron, steel, or reinforced concrete. In doorways, wood and steel are the most common materials. Depending on building requirements, the supports in windows may be made of plastic or fiberglass, while wood or metal form the surrounding frame. Masonry posts, including those of brick, may be highly efficient, because loads compress the joints and add to their cohesiveness.

Advantages -Simplicity- building time is shorter when it comes to post and lintel construction -> the walls to fill in between the posts are prefabricated and transported to the job site. -Stability.

<span style="color: #000000; font-family: 'Comic Sans MS',cursive; font-size: 15px;">Disadvantages <span style="color: #000000; font-family: 'Comic Sans MS',cursive; font-size: 15px;">-The lintel will deform by sagging in the middle->the underside is under tension and the topside is under compression. <span style="color: #0b0a0a; font-family: 'Comic Sans MS',cursive; font-size: 15px; vertical-align: baseline;">-Limited weight that can be held up. <span style="color: #0b0a0a; font-family: 'Comic Sans MS',cursive; font-size: 15px; vertical-align: baseline;">-The small distances required between the posts. <span style="color: #0b0a0a; font-family: 'Comic Sans MS',cursive; font-size: 15px; vertical-align: baseline;">-It’s not nearly as common as platform construction. <span style="color: #0b0a0a; font-family: 'Comic Sans MS',cursive; font-size: 15px; vertical-align: baseline;">-The weight of each piece.

<span style="color: #0b0a0a; font-family: 'Comic Sans MS',cursive; font-size: 15px; vertical-align: baseline;">Modern uses <span style="color: #0b0a0a; font-family: 'Comic Sans MS',cursive; font-size: 15px; vertical-align: baseline;">Today, most post and lintel construction has a third component, the wall, which adds additional support and hides the post and lintel design within the framework. It can still be seen in doorways and columns, in which the space between the vertical supports is open.