static structural analysis using sap2000 for truss and frame (beginner level)
DESCRIPTION
Static Structural Analysis Using Sap2000TRANSCRIPT
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STATIC STRUCTURAL ANALYSIS USING SAP2000 for TRUSS & FRAME
(Beginner Level)
This tutorial belongs to:
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I k a t a n M a h a s i s w a S i p i l November 2011
Universitas Indonesia
Written by Gregory Foranda Saragih | @gregoryfst
SAP2000 v14.1 were used to prepare this tutorial Dont hesistate to critize anything inside (particularlly the bad english used), for the greater good
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
PROBLEM: TRUSS STATIC STRUCTURAL ANALYSIS USING SAP2000
for TRUSS & FRAME
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Problem: TRUSS
Structure Specification: Steel Section W10x12 Esteel = 200.000 Mpa Self Weight does not considered as load Perform Static Analysis using SAP2000 to determine:
- Joint Reaction VA, HA, VB- Members Axial Forces - Displacement and Rotation at C, D, and E
5 essential steps to perform static structural analysis of truss (2D) problem
forTrussandFrame (BeginnerLevel)
November 2011, Ikatan Mahasiswa Sipil
Self Weight does not considered as load
Perform Static Analysis using SAP2000 to determine: Joint Reaction VA, HA, VB
and Rotation at C, D, and E
5 essential steps to perform static structural analysis of truss (2D) problem
5 essential steps to perform static structural analysis of truss (2D) problem
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Part 1: STRUCTURAL DETAILS File New Model Set the Base unit to be used (N, m, C)
Choose 2D Trusses Ignore the 2D Truss Type (or particularly for this problem, choose Sloped Truss) Ignore the Restraints checkbox Ignore the Truss Dimensions Ignore the Section Properties Check the Use Custom Grid Spacing and Locate Origin
Edit Grid
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Define Grid System Data
OK (probably twice)
SAP2000 will show the defined model, with structural members automatically added (connecting joint to joint).
Members of the truss can be added by drawing the elements; connecting joint to joint. [ Draw Draw Frame/Cable/Tendon ]
---end of Part 1 (Structural Details)
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Part 2: BOUNDARY CONDITIONS Select the joint (where the restraint shall be added) Assign Joint Restraints
The use of Fast Restraints is suggested because its more familiar . Assign all joint with the desired boundary conditions.
---end of Part 2 (Boundary Conditions)
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Part 3: SECTION AND MATERIAL PROPERTIES
Define the materials first, and then define the sections of the structure to be analyzed.
Material : Steel, E = 200.000 MPa Section : W10x12
Materials Define Materials Add New Material
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Sections
W10x12
tw = 0.19 inches tf = 0.21 inches bf = 3.96 inches d = 9.87 inches this section properties is gathered from internet unknown resource, so it doubtly represents the actual W10x12 section properties.
Change the base unit to British Standard (lb, in, F) Define Section Properties Frame Sections Add New Property
W10x12 is a type of steel wide flange section. Choose Steel for the Frame Section Property Type Choose I / Wide Flange
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Adjust the section dimensions as W10x12 profile, and choose the defined steel as the
material.
Make sure that the mass and weight value is 1 in the Frame Property/Stiffness Modification Factors; So the frame section will contribute its stiffness in resisting loads on the structure (to be assigned).
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Select all the members of the truss Assign Frame Frame Sections Select the frame section to be assigned on the members selected
---end of Part 3 (Section and Material Properties)
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Part 4: LOADING
Change the base unit to N, m, C
Define Load Patterns Modify the Self Weight Modifier value to 0 (zero)
So the load to be assigned to the structure
Select the joint to be assigned with joint load Assign Joint Loads Forces Adjust the joint forces as the problem
forTrussandFrame (BeginnerLevel)
November 2011, Ikatan Mahasiswa Sipil
the base unit to N, m, C
Modify the Self Weight Modifier value to 0 (zero) So the load to be assigned to the structure will not count the structures self weight as load.
Select the joint to be assigned with joint load
Forces Adjust the joint forces as the problem
count the structures self weight as load.
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
---end of Part 4 (Loading)
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Part 5: ANALYSIS
SIMPLIFICATION OF A 2D TRUSS STRUCTURE MODEL
Only top and bottom beams assumed able to resist shear and moment forces So the diagonal members assumed only able to resist axial forces no stiffness for shear and moment forces Select the diagonal members Assign Frame Property Modifiers
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Reduce the DOFs to be analyzed so the analysis process more efficient (uncheck the unecessary DOFs.
Analyze Set Analysis Options
Analyze Set Load Cases to Run
Modal Case wont be necessary.
RUN
---end of Part 5 (Analysis)
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
RESULTS Joint Forces Display Forces/Stresses Joints
Member Axial Forces Display Forces/Stresses Frames/Cables
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Displacement and Rotation at Joints Display Show Deformed Shape
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
PROBLEM: FRAME STATIC STRUCTURAL ANALYSIS USING SAP2000
for TRUSS & FRAME
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Problem: FRAME (Statically Indeterminate)
Structure Specification: Concrete Section 70x40cm Econcrete = 27.000 Mpa Self Weight does not considered as load Perform Static Analysis using
- Joint Reaction at A and D- Shear and Moment Diagram- Displacement and Rotation
5 essential steps to perform static structural analysis of truss (2D) problem
forTrussandFrame (BeginnerLevel)
November 2011, Ikatan Mahasiswa Sipil
FRAME (Statically Indeterminate)
Self Weight does not considered as load
Perform Static Analysis using SAP2000 to determine: at A and D
Shear and Moment Diagram Displacement and Rotation at E
5 essential steps to perform static structural analysis of truss (2D) problem
5 essential steps to perform static structural analysis of truss (2D) problem
-
StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Part 1: STRUCTURAL DETAILS File New Model Set the Base unit to be used (N, m, C)
Choose Beam Ignore the Restraints checkbox Ignore the Beam Dimensions Ignore the Section Properties Check the Use Custom Grid Spacing and Locate Origin
Edit Grid
-
StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Define Grid System Data
OK (probably twice)
SAP2000 will show the defined model, with structural members automatically added (connecting joint to joint).
Erase all the automatically added structural members.
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Draw Draw Frame/Cable/Tendon
---end of Part 1 (Structural Details)
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Part 2: BOUNDARY CONDITIONS Select the joint (where the restraint shall be added) Assign Joint Restraints
The use of Fast Restraints is suggested because its more familiar . Assign all joint with the desired boundary conditions.
---end of Part 2 (Boundary Conditions)
-
StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Part 3: SECTION AND MATERIAL PROPERTIES
Define the materials first, and then define the sections of the structure to be analyzed.
Material : Concrete, E = 27.000 MPa Section : 70x40cm
Materials Define Materials Add New Material
-
StaticStructuralAnalysisUsingSAP2000forTrussandFrame
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Sections
Define Section Properties
Concrete 70x40cm is a type of Choose Concrete for the Frame Section Property TypeChoose Rectangular
forTrussandFrame (BeginnerLevel)
November 2011, Ikatan Mahasiswa Sipil
Concrete 70x40cm
Frame Sections Add New Property
is a type of concrete rectangular section. the Frame Section Property Type
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Adjust the section dimensions as 70x40cm profile, and choose the defined concrete as the
material.
Make sure that the mass and weight value is 1 in the Frame Property/Stiffness Modification Factors; So the frame section will contribute its stiffness in resisting loads on the structure (to be assigned).
-
StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Select all the members of the frame Assign Frame Frame Sections Select the frame section to be assigned on the members selected
---end of Part 3 (Section and Material Properties)
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Part 4: LOADING
Define Load Patterns Modify the Self Weight Modifier value to 0 (zero)
So the load to be assigned to the structure
Frame Distributed Load Select the frame to be assigned with joint loadAssign Frame Loads DistributedAdjust the frame distributed loads as the problem
forTrussandFrame (BeginnerLevel)
November 2011, Ikatan Mahasiswa Sipil
Modify the Self Weight Modifier value to 0 (zero) So the load to be assigned to the structure will not count the structures self weight as load.
to be assigned with joint load Distributed
Adjust the frame distributed loads as the problem
count the structures self weight as load.
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Joint Load
SLOPE JOINT LOAD, USING LOCAL AXES
To assign a slope joint load, the local axes of the joint where the load shall be assigned must be defined. Select the joint Assign Joint Local Axes Adjust the appropriate axis to rotate the joint axes.
Assign joint load using Local Coordinate System. Assign Joint Loads Forces
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
-
StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
---end of Part 4 (Loading)
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Part 5: ANALYSIS
Reduce the DOFs to be analyzed so the analysis process more efficient (uncheck the unecessary DOFs.
Analyze Set Analysis Options
Analyze Set Load Cases to Run
Modal Case wont be necessary.
RUN
---end of Part 5 (Analysis)
-
StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
RESULTS
Joint Forces Display Forces/Stresses Joints
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Shear and Moment Diagram Display Forces/Stresses Frames/Cables
Shear Diagram
Moment Diagram
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StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Displacement and Rotation at Joints Display Show Deformed Shape
-
StaticStructuralAnalysisUsingSAP2000forTrussandFrame (BeginnerLevel)
Written by Gregory Foranda Saragih
November 2011, Ikatan Mahasiswa Sipil
Structural Analysis Program is a great engineer with a terrible sense of engineering. -2010