What is eccentric load on footing?
Normal footing becomes eccentrically load footing when there is an eccentricity in the loading or when there is a bending moment at the connection of footing and the column. The eccentricity could be in one direction or in both directions. Desing of the eccentrically loaded footing shall be done accordingly.
How are eccentrically loaded footings?
The eccentric footing is designed in such a way that the C.G (center of gravity) of the superimposed load coincides with the C.G of the base area so, resulting in uniform bearing pressure. This footing is subjected to concentric loading. W1 is a super-imposed load, including the weight of the wall per unit length.
What are eccentrically loaded foundations?
Eccentric Foundations are one of the most commonly used types of foundation designs in rear or side extensions and are commonly seen forming part of Party Wall Awards, Party Wall Notices and Party Wall Surveyor requests. An eccentric foundation is a foundation whereby the wall sits on the outer edge of the foundation.
How do you calculate eccentric footing?
RE: Eccentric Footing e>L/6, Formula for Moment calculation? Take the sum of all forces (volume of a wedge) and multiply it by the distance to the centroid (b/3). Or it can be designed for the maximum bearing pressure, conservatively.
What is eccentric load?
Eccentric load is basically defined as the load whose line of action does not pass through the axis of the column, but also line of action of load passes through a point away from the axis of the column.
What is a pad footing?
Isolated footings (also known as Pad or Spread footings) are commonly used for shallow foundations in order to carry and spread concentrated loads, caused for example by columns or pillars. Isolated footings can consist either of reinforced or non-reinforced material.
What are the different types of footing?
Types of footings:
- Wall footing/strip footing.
- Spread Footings.
- Isolated footings.
- Stepped footings.
- Combined footings.
- Sloped footings.
- Mat or raft foundation.
- Strapped footings.
What is eccentricity construction?
The degree to which two forms fail to share a common center; for example, in a pipe or tube whose inside is off-center toth regard to the outside.
What is an eccentric load?
A load on a column or pile which is nonsymmetric with respect to the central axis, therefore producing a bending moment.
What does eccentric mean in construction?
In mechanical engineering, an eccentric is a circular disk (eccentric sheave) solidly fixed to a rotating axle with its centre offset from that of the axle (hence the word “eccentric”, out of the centre).