Quick Answer: Is criteria for earthquake resistant design of structure is?

Is 1893 criteria for earthquake resistant design of structures?

It is to serve this purpose that IS 1893 : 1962 ‘Recommendations for earthquake resistant design of structures’ was published and revised first time in 1966. … In the clauses for design of multi-storeyed buildings, the coefficient of flexibility was given in the form of a curve with respect to period of buildings.

What are the criteria of design of the earthquake resistant building?

(i) Structures should not be brittle or collapse suddenly. Rather, they should be tough, able to deflect or deform a considerable amount. (ii) Resisting elements, such as bracing or shear walls, must be provided evenly throughout the building, in both directions side-to-side, as well as top to bottom.

What is earthquake resistant design?

Definition. Earthquake resistant design consists of an evaluation of the earthquake excitation and the structure response to this excitation at a particular site in order to provide a structural system that will not collapse, that may prevent loss of life and will limit economic loss during an earthquake.

What is seismic coefficient?

The Seismic Coefficients are dimensionless coefficients which represent the (maximum) earthquake acceleration as a fraction of the acceleration due to gravity. Typical values are in the range of 0.1 to 0.3. … A POSITIVE vertical seismic coefficient represents a vertical seismic force directed DOWNWARDS.

What is seismic coefficient method?

The seismic coefficient method is one of the static procedures for earthquake resistant design of structures. Horizontal and/or vertical forces, which are calculated as products of the seismic coefficients H K , V K and the weight of the structures are applied to the structures as shown in Figure 1.

How many seismic zones are considered in earthquake resistant design of structure?

four seismic zones – over 60% of India’s land under seismic zones III, IV and V. Seismic design of bridges in India is covered in three codes, namely IS 1893 (1984) from the BIS, IRC 6 (2000) from the Indian Roads Congress, and Bridge Rules (1964) from the Ministry of Railways.

Is code book for earthquake?

Seismic requirements for Design, Detailing and Construction are covered in other codes, e.g., IS:4326, IS:13920, … For an Earthquake Resistant Structure, one has to follow IS:1893 (Part-1) together with Seismic Design and Detailing Codes.

Can you protect a 100 year old building against earthquake damage?

Buildings cannot be made earthquake-proof, only earthquake-resistant. Because the majority of old houses are built with wood frames, a relatively flexible construction method, they can sway in an earthquake like a palm tree in a stiff breeze.

Why do we need earthquake resistant buildings?

Earthquake–resistant or aseismic structures are designed to protect buildings to some or greater extent from earthquakes. … This means the loss of life should be minimized by preventing collapse of the buildings for rare earthquakes while the loss of the functionality should be limited for more frequent ones.