Week 9 Challenge

SOLUTION 1

REFER STAAD MODEL STRUCTURE 50

GIVEN DATA

Bay spacing as 5 m

Frame width is 20 m

Slope of the roof is 1 in 10

LOADING DATA

Roof is accessible for maintenance purpose (assume 75 kg/m²)

Weight of roofing sheet = 5kg/m²

Weight of purlins + tertiary members = 25 kg/m²

^{DESIGN CODE}

^{Design code as per AISC:ASD}

^{ASSUMING HEIGHT OF THE COLUMN AS 10 M}

^{Slope of the roof is 1 in 10}

^{THETA=TAN^-1(1/10)=5.71}

^{10*TAN(5.71)=0.999 =APPROX 1M}

^{LOAD CALCULATION}

^{DEAD LOAD}

Weight of roofing sheet = 5kg/m²

Weight of purlins + tertiary members = 25 kg/m²

^{TOTAL DEAD LOAD =30 kg/m2 = 0.3 kN/m^2}

^{UDL ON RAFTER=TOTAL LOAD*BAY SPACING=0.3*5=1.5 KN/M}

^{LOAD CALCULATION}

^{LIVE LOAD}

^{Roof is accessible for maintenance purpose (assume 75 kg/m2)}

^{TOTAL LIVE LOAD =75 kg/m2 = 0.75 kN/m^2}

^{UDL ON RAFTER=TOTAL LOAD*BAY SPACING=0.75*5=3.75 KN/M}

^{SUPPORT CONDITION}

^PINNED

^{STEP 1.}

^{OPEN STAAD PRO}

^{DEFINE GEOMETRY}

^{BY PUTTING THE NODE DATA IN X,Y AND Z IN M}

^{STEP 2}

^{DEFINE MATERIAL}

^STEEL

^{STEP 3}

^{DEFINE PROPERTY}

^{TAPERED I}

^{STEP 4.}

^{DEFINE SUPPORT CONDITION}

^PINNED

^{STEP 5.}

^{DEFINE LOAD}

^{DEFINE LOAD CASE DETAILS}

^ADD

^{1 DEAD LOAD}

^{DEFINE UNIFORM FORCE W1=-1.5 KN/M}

^{DIRECTION =GY}

^{2 LIVE LOAD}

^{DEFINE UNIFORM FORCE W1=-3.75 KN/M}

^{DIRECTION =GY}

^{DEFINE LOAD COMBINATION}

^{1DL+1 LL}

^{LOAD FACTOR DL=1}

^{LOAD FACTOR LL=1}

^ADD

^{APPLY BOTH LOAD ON RAFTER}

GO TO ANALYSIS IN RIBBON TOOL BAR

DEFINE COMMAND

PERFORM ANALYSIS PRINT ALL

ADD

GO TO DESIGN IN RIBBON TOOL BAR

CHOOSE CURRENT CODE

AISC:ASD

CHOOSE

CHECK CODE

STEEL MEMBER TAKE OFF

ADD

RUN THE ANALYSIS

BENDING MOMENT DIAGRAM

MZ

BENDING MOMENT DIAGRAM

MY

SHEAR FORCE DIAGRAM

FZ

SHEAR FORCE DIAGRAM

FY

AXIAL FORCE DIAGRAM

FX

SOLUTION 2.

REFER STAAD MODEL CHALLENGE 41

FIGURE 1.

^{HEIGHT OF THE COLUMN IS 10 M}

^THETA=5.71

^{10*TAN(5.71)=0.999 =APPROX 1M}

^{STEP 1.}

^{OPEN STAAD PRO}

^{DEFINE GEOMETRY}

^{BY PUTTING THE NODE DATA IN X,Y AND Z IN M}

^{STEP 2}

^{DEFINE MATERIAL}

^STEEL

^{STEP 3}

^{DEFINE PROPERTY}

ISMB 400 FOR COLUMNS

ISMB 300 FOR BEAMS

^{STEP 4.}

^{DEFINE SUPPORT CONDITION}

^{PINNED FOR EXTERNAL COLUMN}

^{FIXED FOR INTERNAL COLUMN}

^{STEP 5.}

^{DEFINE LOAD}

^{DEFINE LOAD CASE DETAILS}

^ADD

^{1 DEAD LOAD}

^{NODAL LOAD}

^{NODE LOAD}

^{FX =10 KN (APPLY TO NODE 4 )}

^{FX=-10 KN (APPLY TO NODE 6 )}

^{DEFINE UNIFORM FORCE W1=-20 KN/M}

^{DIRECTION =GY}

^{APPLY TO RAFTER}

GO TO ANAYLSIS IN RIBBON TOOL BAR

ADD PERFORM ANALYSIS PRINT ALL

Draw Bending Moment diagram for following Frame using STAAD.Pro

BMD DIAGRAM WITH VALUES

FIGURE 2.

REFER STAAD MODEL STRUCTURE 51

^{HEIGHT OF THE COLUMN AT NODE 1 IS 16.36 M}

^{HEIGHT OF THE COLUMN AT NODE 2 IS 20 M}

^THETA=20

^{10*TAN(20)=3.64 M}

^{STEP 1.}

^{OPEN STAAD PRO}

^{DEFINE GEOMETRY}

^{BY PUTTING THE NODE DATA IN X,Y AND Z IN M}

^{STEP 2}

^{DEFINE MATERIAL}

^STEEL

^{STEP 3}

^{DEFINE PROPERTY}

ISMB 600 FOR COLUMNS

ISMB 450 FOR BEAMS

^{STEP 4.}

^{DEFINE SUPPORT CONDITION}

^{PINNED FOR EXTERNAL COLUMN}

^{STEP 5.}

^{DEFINE LOAD}

^{DEFINE LOAD CASE DETAILS}

^ADD

^{1 DEAD LOAD}

^{NODAL LOAD}

^{NODE LOAD}

^{FX =30 KN (APPLY TO NODE 3 )}

^{DEFINE UNIFORM FORCE W1=-10 KN/M}

^{DIRECTION =GY}

^{APPLY TO RAFTER}

GO TO ANAYLSIS IN RIBBON TOOL BAR

ADD PERFORM ANALYSIS PRINT ALL

Draw Bending Moment diagram for following Frame using STAAD.Pro

BMD WITH VALUES

FIGURE 3

REFER STAAD MODEL STRUCTURE 56

^{HEIGHT OF THE COLUMN IS 10 M}

^{STEP 1.}

^{OPEN STAAD PRO}

^{DEFINE GEOMETRY}

^{BY PUTTING THE NODE DATA IN X,Y AND Z IN M}

^{STEP 2}

^{DEFINE MATERIAL}

^STEEL

^{STEP 3}

^{DEFINE PROPERTY}

ISMB 500 FOR COLUMNS

ISMB 350 FOR BEAMS

^{STEP 4.}

^{DEFINE SUPPORT CONDITION}

^{PINNED FOR EXTERNAL COLUMN}

^{STEP 5.}

^{DEFINE LOAD}

^{DEFINE LOAD CASE DETAILS}

^ADD

^{1 DEAD LOAD}

^{DEFINE UNIFORM FORCE W1=2 KN/M}

^{DIRECTION =GX}

^{APPLY TO LEFT COLUMN}

^{1 DEAD LOAD}

GO TO MEMBER LOAD

^{DEFINE CONCENTRATED FORCE P= -10 KN}

^{DIRECTION =GY}

^{APPLY TO BEAM}

GO TO ANAYLSIS IN RIBBON TOOL BAR

ADD PERFORM ANALYSIS PRINT ALL

Draw Bending Moment diagram for following Frame using STAAD.Pro

BMD WITH VALUES

SOLUTION 3.

3. Deflection of a frame, present result from STAAD.Pro

Determine the lateral deflection at point A & Vertical deflection at mid section of beam between B & C from Figure 1 in previous challenge.

Lateral deflection at point A =NODE 4

Vertical deflection at mid section of beam between B & C

X DIRECTION

Y DIRECTION

Determine the lateral deflection at point A & Vertical deflection at mid section of beam between A & B from Figure 2 in previous challenge.

lateral deflection at point A = NODE 3

Vertical deflection at mid section of beam between A & B

X DIRECTION

Y DIRECTION

Determine the lateral deflection at point A & point B from Figure 3 in previous challenge

LATERAL DEFLECTION AT PONT A = NODE 1 AND POINT B =NODE 3

LATERAL DEFLECTION AT PONT B= NODE 3

LATERAL DEFLECTION AT PONT A = NODE 1