How does inverted beam work?

Regular beam itself becomes an inverted beam if the flange of the slab gets supported in the tension zone of the beam if it is simply supported beam or in the compression zone of the cantilever beam. Inverted beams are provided to avoid it’s view in porch area or to have more head as per requirements.

What are inverted beams?

The Inverted beam is a reinforced concrete beam, different types shape of beam-like I beam, T Beam, L beam, etc. Inverted beams are popular and form an essential part of modern reinforced concrete framed structures. Lastly, strict and rigid architectural considerations led to the provision of inverted beams.

Where will be the reinforcement of slab placed when there is an inverted beam and the bottom of the beam and slab are at same level?

Edit: Considering the slab continuous between supporting inverted beams (flush with the bottom of the inverted beams) and subjected to gravity loads, portion of the slab near the inverted beams has tension at top and so tension reinforcement will go at the top.

What is the difference between drop beam and inverted beam?

Inverted beam is used in places where it is not possible to provide Drop Beam due to architectural consideration. I.e when we require soffit to be flat. Below are some examples where inverted beams are used. Inverted beams are used in porch area where flat bottom is desired as per architectural requirement.

What is inverted column?

One is the use of inverted columns where the feed is charged to the condenser drum instead of to the reboiler. The reason is that it takes a long time to move this small amount from the reboiler to the top before removal when a regular column is used.

What is sunken slab?

A sunken slab or sunk slab is provided below the normal floor level in bathrooms, toilets, and laundry areas, where pipes or drainage systems are laid. It is constructed with the purpose of concealing all the pipes below the floor level to maintain the aesthetic appeal of the space.

What is primary beam and secondary beam?

Primary Beam: A horizontal beam connecting columns (simply supported or shear connected.) Function: It will transfer the load from secondary beam(if present) to the columns. Secondary Beam: A horizontal beam connecting primary beams (simply supported or shear connected.)

Which footing is designed a inverted beam slab?

Generally, an inverted beam is practiced in cantilever slabs & for special architectural effects.

Where is lapping provided in beam?

The lapping zone for the top bars should be at the mid- L1/3 or L2/3 part of the beams. Reason: The top bars fall under the compression zone of the beam. For the compression zone, the mid-1/3 span of the beam is said to be a safe zone for lapping.

What is toilet sunk?

Sunken slab is a type of slab cast at a certain depth (200 mm or 300 mm or any other depending on design) below normal floor level. This extra depth is used for placing pipes and utility ducts and then space is filled with sand or other light weight materials until the normal floor level. It is also known as sunk slab.

Why sunk is provided?

How does a regular beam become an inverted beam?

Regular beam itself becomes an inverted beam if the flange of the slab gets supported in the tension zone of the beam if it is simply supported beam or in the compression zone of the cantilever beam.

What are the advantages of inverted beam floor?

The inverted beam is desired structural element because of several advantages which include: By providing inverted beam floor height can be achieved, clears the way for electromechanical duct-work, and also the aesthetic appearance of the building. This is more applicable to industrial, commercial buildings.

Why is a transverse beam not treated as a distinct member?

If footing is relatively narrow, the bending moment and shear on transverse beam will be small and required depth usually smaller than actual footing depth (designed for longitudinal shear, moment etc.). Thus these beams aren’t treated as distinct member.

What is the part of a T beam below the slab?

The part of a T beam below the slab is referred to as the web or stem. The beams may be inverted L shaped if it is edge or spandrel beam.