What is a haunch slab?
The haunch assembly includes a concrete haunch having an upper portion, a center portion and a lower portion. The upper portion of the haunch includes a flat top surface adapted for receiving a portion of a pre-cast concrete slab, stairs, stoops, poured in place concrete slab or other building structure thereon.
What is a haunch footing?
A footing is the bearing for a foundation wall, it supports the structure. Standard footing-a footing below the frost, below-grade (most of these are used in house basements) Haunch footing—a footing used for above grade concrete slabs (these are found usually in garages and house slabs)
How thick should a concrete slab be for a garage?
six inches thick
Thickness of Garage Floor Slab Light Loads – For one to two light cars or trucks, the concrete should be at least four inches thick. Medium Loads – If the garage is used for average-sized vehicles and/or medium to heavy trucks, the concrete needs to be six inches thick.
How do you make a thickened edge of a slab?
Fill and Level
- Spread and tamp three-inch layers of granular fill to within five inches of the top of the forms.
- Stretch a string across the top of the forms and measure down to the ground.
- Subtract the thickness of your slab.
- Slope the fill down along the edges to create a thickened edge of concrete.
What is the purpose of a concrete haunch?
The haunch is the area between the top of a bridge girder and the bottom of the concrete deck. Haunch geometry can be influenced by a variety of factors. A primary function of the haunch is to maintain a uniform deck thickness. Haunches are often needed to account for camber and cross-slope.
What does Haunching mean in building?
In constructing a pavement, concrete on which an edge course is bedded is piled up against the outer side of the edge course (haunched) to close to its upper surface, helping to fix it in position. concrete, edge course, pavement.
What is the purpose of a haunch?
A primary function of the haunch is to maintain a uniform deck thickness. Haunches are often needed to account for camber and cross-slope.
What is haunch in building construction?
Haunches are usually provided at the eaves of rigid portal frames due to a lot of beneficial reasons. They are usually cut from the same section as the rafter, or can be fabricated by welding different plates together. After fabrication, they are welded to the underside of the rafter at the eaves.
What does a haunch do?
Consequently, haunches enhance the economical design of rafters of portal frames, by reducing the depth of the section required. Haunches also assist in the reduction of deflection and facilitate efficient rigid bolted connection between the rafter and the column.
What is the purpose of a haunch under a concrete slab?
What is a haunch in building construction?
Haunched beams are designed by forming a rigid moment connection between the beams and columns. The depth of the haunch is selected primarily to provide an economic method of transferring moment into the column. The length of the haunch is selected to reduce the depth of the beam to a practical minimum.
Why do we provide haunch?
Haunch is provided in order to restrict the shear at the corners or supports .. As shear force is maximum at the Supports (corners), by providing haunch the depth is increased so the shear crack can be restricted.. Hunch is provided to prevent Stress and Strain Concentration near the corners too..
Can I use mesh instead of rebar?
While rebar is suitable for use in any structure poured at any angle, wire mesh is only suitable for horizontal slabs. Wire mesh is generally cheaper to use than rebar since it utilizes only thin steel bars. Rebar’s cost depends on the bar’s thickness and thus varies considerably.
How do you seal a gap between a garage floor and a wall?
Fill the crack with urethane caulk, similar to what you would use for driveway caulk. It works perfectly as a concrete expansion joint sealant. Snip the opening of the tube at a 30-degree angle, making the opening the same size as your gap.
Where are the haunches located?
Word forms: haunches The haunches of an animal or person are the area of the body which includes the bottom, the hips, and the tops of the legs.
What is the purpose of haunches?
Thus, there is a need of haunches that provide a slight bend at the corners so that the stresses are not accumulated and make the structure vulnerable to fail or deform. Hence, haunches play an important role in withstanding the applied loads and forces.