Computer Assisted Design PowerPoint Presentation

Computer Assisted Design-SAP2000-Coordinators:Prof.univ.dr.ing. Gabriela Maria AtanasiuAs.Cerasela OlariuStudent:Group:

GH. ASACHI TECHNICAL UNIVERSITY FROM IASIFACULTY OF CIVIL ENGINEERING AND BUILDING SERVICESAssignment no.1Input data:L=6.4 mm=17.9 t =17900 Kgh=6.4 m

6.46.412.812.86.4I.Analysis of a truss structureStep 1 Select the menu File->New model When a new model is started, SAP2000 will ask the user to specify a set of units. Those units become the base units for the model. Althoughinput data may be provided and output data can be viewed in any set ofunits, those values are always converted to and from the base units of themodel.

From select tample we will choose Grid Only.Measurements units: KN,m,C

Adjusting Grids Define Menu ->Coordinate Systems/Grids -> Choose Modify/Show System

Defining the materialsDefine->Materials..->Add new material

The section will be created:Define->Section properties->Frame Sections-> Add new property

Select other frame section->Section designer

Defining the section

Drawing the structure

Draw->Draw Frame/Cable/TendonSuportsAssign->Joint->Restraints

Defining the loads:DEFINE->Load Patterns

Releasing the degree of freedomASSIGN->Frame->Releases/Partial Fixity

Defining the concentrated loadsASSIGN->joint->Masses

Analysis options

ResultsDisplay->Show Deformed Shape

Axial Force

COMPARING WITH THE HAND CALCULATION

Assignment no.2Perform the static and modal analysis for the following 3D structure using SAP2000.

The structure is made of RC , class C20/25

File -> New model->Grid only

Editing the grid

Define the materialsDefine->Materials..->Add new material

Editing the material propertiesDefine the section

DEFINE ->Section Properties-> AREA SECTIONADD NEW SECTION

Draw the structure

ASSIGN->JOINT LOADS->FORCES

Draw the shellDRAW->QUICK DRAW AREA

ASSIGN->AREA LOADS-UNIFORM SHELL

LOAD PATTERNS

Load combinationDEFINE->LOAD COMBINATION->ADD NEW COMBO

The static analysis is performed for the following load combinationsSTATIC ANALYSIS

ANALYZE-RUN ANALYSISMODAL ANALYSIS1*Dead+0.4*Live+0.4*SnowDEFINE->MASS SOURCE->ADD NEW MASS