PSI - Issue 60

Sarmili Swain et al. / Procedia Structural Integrity 60 (2024) 553–563 Sarmili Swain / Structural Integrity Procedia 00 (2024) 000 – 000

558

6

Fig. 4. 3D – Model with beam specifications in SAFIR

Table 3. Modelling Properties used in SAFIR Specification

Details

Concrete Model

Siliceous Aggregate

Specific mass of concrete Compressive strength

2400

20 MPa

Water Content

48 Kg/m 3

Steel model

Hot rolled, class B

Tensile strength

Zero

Modulus of elasticity

210 GPa 500 GPa

Yield strength Poisson's ratio

0.3

Coefficient of convection on heated surface Coefficient of convection on unheated surface

25W/M 2 K 4 W/M 2 K

Emissivity

0.7

3 . Results and Discussions The behaviour of the considered G+3 RC framed building model, analyzed using the linear static approach, subjected to progressive collapse states followed by fire load scenarios, are investigated in this section.

Fig. 5. Shear force and bending moment of typical frame under gravity load analysis

3.1 Fire Load Assessment in the context of Progressive Collapse : The G+3 building is analyzed for structural integrity under progressive collapse scenarios coupled with fire exposure to the entire building for different time durations (0, 30, and 60 minutes of fire) is presented here. The