What do you mean by Limit State? Explain its various types indicating its salient features along with merits.

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written 8.4 years ago by

teamques10 ★ 68k

• modified 6.1 years ago

The limit state method ensures the safety at ultimate load and serviceability at working load rendering the structure fit for its intended use. Thus, it considers the fitness of the structure to perform its function satisfactorily during its service life span.
The salient features and the merits of the methods are given below:

a. It considers the actual behavior of the structure during the entire loading history up to collapse

b. It adopts the concept of fitness of structure to serve the desired function during the service life span and defines the limiting state of fitness as the limit state.

c. The method, adopts the idea of probability of structure becoming unfit and attempts to achieve the minimum acceptable probability of failure.

d. The method is based on statistical probabilistic principles.
The various types of limit state are:

A) Limit State of collapse

B) Limit State of serviceability: There are 3 types:

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