Project 2 - MODELLING, ANALYSIS & DESIGN OF COMPOSITE STUCTURES IN COMFLOR & ETABS

THE STRUCTURAL MODEL OF PROJECT 1

FRAMING FOR PRIMARY BEAM.

FRAMING FOR SECONDRY BEAM

MEMBER DFINITION OF STEEL SECTION BY IMPORTING

DECK PROFILE USING COMFLOUR MANUAL.

IMPOSED LOAD= 3 KN/M2

SUPER IPOSED DEAD = 2.5 KN/M2

FROM COMFLOUR TABLE,

PROVIDE , DOUBLE SPAN,

THICKNESS = 1.00 MM

SPAN =2.26 = 2.95

DEPTH OF SLAB= 160 MM

CALCULATION OF SECONDARY BEAM

SELF WT OF SLAB= 0.16*2.26*25= 9.05 KN/M

S IMPOSED LOAD= 2.5*2.26 =5.65 KN/M

LIVE LOAD = 3*2.26=6.78 KN/M

ULMATE LOAD= 1.5( DL+LL)

1.5(9.05+12.43)= 32.22 KN/M

Mu= WL^2/8

= 32.22* 5*5/8= 100.8KN-M

ELASTIC MODOLUS= Mu*1.05/fy

= 100.8 *10^3*10^2/250 = 423.36cm^3

SO , PROVIDE ISWB 250 , Zxx = 475.4 cm^3

FOR MAIN BEAM

DED LOAD = 0.16*25**5*8.96= 179KN@ CENTER

LIVE LOAD= 3*8.96*5 = 134KN @CENTER

SUPER IMPOSED LOAD = 2.5*8.96*5=112 KN @CENTER

ULTIMATE LOAD =1.5( 246)+1.5(179)= 369+268.5 = 637KN

Mu DUE TO POINT LOAD = WL/4 = 637 *4.57/4 = 728 KN-M

ELSTIC MODOLUS= Zp= 728*1.05/fy= 2215cm^3

PROVIDE ISWB 550

LOADING AND LOAD COMBNATION.

SSUME THE AREA -GUWAHATI

SEISMIC ZONE- 5 ( 0.36 )

SOIL TYPE- MEDIUM

IMPORTNCE FACTOR- R=1

TIME PERIOD IN X- TX = 0.09H/`sqrtd`= 0.09*32.85/`sqrt37.11`= 0.48 s

TIME PERIOD IN Y -TY = 0.09h/`sqrtdy`= 0.09*32.85/19.69 = 0.67 s

BASIC WIND SPEED = 50 M/S

K1(RISK FCTOR) = 1 TABLE 1,CLAUSE 5.3.1

K2 (TERRAIN ROUGHNESS AND HEIGHT FACTOR) = 0.91 TABLE 2 5.3.2.2

K3 (TOPOGRAPHY FACTOR) = 1.0

K4(IMPORTANCE FACTOR FOR CYCLONIC REGION) = 1.0 ( CLAUSE 5.3.4 )

LOAD COMBINATION.

BENDIN MOENT DIAGRAM.

SHEAR FORCE DIAGRAME.

BASE REACTION FOR

RESULT