What is a drop in construction?

What is a drop in construction?

A drop structure, also known as a grade control, sill, or weir, is a manmade structure, typically small and built on minor streams, or as part of a dam’s spillway, to pass water to a lower elevation while controlling the energy and velocity of the water as it passes over.

What are drop panels in concrete slab?

Drop panels and column heads The drop panels are effective in reducing the shearing stresses where the column is liable to punch through the slab, and they also provide an increased moment of resistance where the negative moments are greatest. The flat slab floor has many advantages over the beam and slab floor.

What is the thickness of flat slab with drops and without drops?

As per ACI -The drop thickness should not be less than 100mm or (Thickness of slab)/4. While calculating span by depth ratio, longer span is used. The thickness of slab should not be less than 125mm. The purpose of column drop is to reduce the shear stress and also reduce the reinforcement in the column strip.

What is flat slab with drop panel and column head?

The flat slab is a two-way reinforced structural system that includes either drop panels or column capitals at columns to resist heavier loads and thus permit longer spans. – Partition walls can be placed anywhere. – Offers a variety of room layouts to the owner. – False ceilings can be omitted.

What is a dropped floor?

A “dropped” floor design works best for a house that does not have a basement or a vented crawlspace and the designer of such a house might opt for a slab on grade. It also works best for houses designed to be open to the outside with privacy provided beyond the perimeter of the house.

What is drop wall?

Non-load Bearing wall or Drop Wall: The non-load bearing wall can be removed or shortened without affecting the building structure. Non-Load bearing walls are also called as Drop wall or Filling wall.

What is the purpose of drop panels?

In concrete construction, a Drop Panel is a projection below the slab used to reduce the amount of negative reinforcement over a column or the minimum required slab thickness, and to increase the slab shear strength.

What is drop panel What is its purpose?

The portion of a flat slab or flat plate that is thickened throughout the area surrounding the top of the column, to reduce the magnitude of shear stress.

What are drop panels?

Which is the most critical section for flat slab?

Critical section for shear in case of flat slabs is at a distance of d/2 from the periphery of the column/the capital / the drop panel, where d is the effective depth.

What are the disadvantages of flat slabs?

Disadvantages of Flat Slab

1	Span length is medium. In flat plate system, it is not possible to have large span.
2	Not suitable for supporting brittle (masonry) partitions
3	Use of drop panels may interfere with larger mechanical ducting