E2-E3 CIVIL TECHNICAL

Transcription

1 E2-E3 CIVIL TECHNICAL Structural Design using STAAD PRO

2 WELCOME This is a presentation for the E2-E3 Civil Technical Moule for the Topic: Structural Design using STAAD PRO Eligibility: Those officers of civil wing who have got the Up-graation from E2 to E3. This presentation is last upate on You can also visit the Digital library of BSNL to see this topic.

3 AGENDA Introuction Features of STAAD PRO Types of structures & Elements Axis & Sign Convention in STAAD PRO Steps of Design using STAAD PRO Typical Comman Sequence in STAAD PRO

4 INTRODUCTION Use of Computers in Structural Design of Builings Computers can perform complicate computations at a high-spee therefore computer programs are use for analysis & esign of structural members. Computer results are epenent on effectiveness of software as certain assumptions are mae in the evelopment of programs. But now, with experience, these softwares have been revise & upate & computer programs can be relie upon to give accurate results.

5 INTRODUCTION Limitations of Han Computation Methos Applicable for small problems Teious for even meium size problems 3- analysis almost impossible Avantages of Computer Analysis Matrix methos of structural analysis Development of numerical techniques Finite element metho 3- analysis can be one.

6 STAAD PRO Use of Computers in Structural Design of Builings STAAD Pro is a very powerful program which can be use fro 3-D analysis & is useful for analysis an esign of multi-storie builings. Full range of analysis incluing static, P-elta, response spectrum, time history, cable etc. an Steel esign, Concrete esign an Timber esign is available in STAAD PRO

7 STAAD PRO STAAD PRO It provies the user environment for Moel evelopment (Graphical as well as input eitor) Moel visualization on screen, Analysis & esign, an Verification Pre an Post Processor Isometric an perspective view an 3D shapes.

8 Features of STAAD PRO Features of STAAD PRO Object-oriente 2D/3D graphical moel generation with Flexible zoom, pan an multiple views. Built-in comman file eitor for text eit. Customizable structural templates for creating a moel. Unlimite Uno an Reo Pull own menus, floating tool bars, tool tip help & quick ata input through spreasheets. FPS, Metric or SI units.

9 Features of STAAD PRO Features of STAAD PRO Supports truss & beam members, plates, solis, linear an non-linear cables & curvilinear beams. Avance automatic loa generation facilities for area, floor & moving loas. Display of loas, supports, properties, joints, members, etc Rectangular an also cylinrical & reverse cylinrical coorinate systems with mix an match capabilities. c

10 Features of STAAD PRO Features of STAAD PRO Easy auto mesh & auto refinement of user-efine polygonal element bounary by simple mouse clicks, incluing openings & column/ wall lines. Joint, member/ element, mesh generation with flexible user-controlle numbering scheme Import/ Export DSF, DWG an Excel files. Presentation quality printer plots of geometry an results as part of run output. Efficient algorithm minimizes isk space requirements.

11 Features of STAAD PRO Features of STAAD PRO Moel Generation Easy snap-to construction gri for laying out beams an columns on irregular gris. Segments of repetitive geometry may be use to generate complex structural moels. Generate, copy, repeat, mirror, pivot, etc. for quick an easy geometry generation. Comprehensive graphical eiting. Library of commonly use structures an isplay of properties, loaings, supports, orientations etc.

12 Features of STAAD PRO Features of STAAD PRO Moel Generation Graphical specification & isplay of properties, loaings, supports, orientations etc. Import/Export of Auto Ca 2D/3D files to start moel. Access to text eitor to moify moel quickly through comman syntax. User-controlle scale factors for eflecte shapes. Customizable noe/member & renumbering scheme.

13 Analysis & Design Static Analysis Primary P-elta Non-linear Non-Linear Cable Basic Design Steel Concrete Dynamic analysis Rayleigh Eigen Solution Time History Response Spectrum Special Design Aluminum Timber Transmission Tower

14 Structure Types Structural Types: GY X GX Z GZ TRUSS (2D) TRUSS (3D) u u u u u u PLANE (2D) SPACE (3D) FLOOR

15 Element Types Structural Elements Line Truss u u u Beam Surface u u u Plate/ Shell Surface Soli

16 Bounary Conition Fully Restraine Partially Restraine Partially restraine w/ Springs Incline Multilinear Some Special Supports Elastic footing Elastic Mat Multi-linear Spring Incline Support

17 Using STAAD PRO Using STAAD PRO for Analysis & Design of Builing Steps In Design Manual esign of slabs, staircases, chajjas, lintels etc. Preparing structural moel of builing Preparing ata for STAAD PRO program at all levels i.e loa intensities at all floors & wall loa etc. Perform Analysis after complete feeing of ata an obtain the analysis out-put. Once analysis is complete for ifferent loa combination esign is performe for loa envelope.

18 Using STAAD PRO Using STAAD PRO for Analysis & Design of Builing Steps In Design STAAD PRO gives beam an column esigns at all levels & column reactions for esign of founations. Manual esign of footings. After esign by STAADPRO we note own area of steel for column at various levels & grouping is one. For beams we note own main reinforcement & Shear reinforcement at various sections & o etailing. Detailing of reinf one manually as per SP34 & IS Prepare structural rawings using AutoCa or manually.

19 Steps for Static Analysis Geometric Moeling Material Properties Sectional Properties Supports : Bounary Conitions Loas & Loa combinations Special Commans Analysis Specification Design Comman

20 Geometric Moeling Noal Co-orinate Data Selection of Elements : Element Library Beam Elements : Beams, Columns, Truss Members Plate Elements : Structural Walls, Floor Slabs Plane Stress Elements : Shear Walls, Floor Slabs Acting As Rigi Diaphragm To Lateral Loaing Soli Elements : Thick Raft, Block Founations Surface Element: Rectangular Default Division 10X10, no. can be controlle Mainly introuce for Shear Wall Moeling & Design

21 Sectional & Material Properties Beam Elements : Cross Section Plate Elements : Thickness Soli Elements : NIL Material means a set of: Moulus of Elasticity Poisson s Ratio Weight Density Thermal Coefficient Damping Ratio Shear Moulus Geometric Constant Beta ( ) Angle Reference Point

22 Axis & Sign Convention Local & Global Axis System for Member Depens on Connectivity Upwar Global Axis

23 Axis & Sign Convention Different Axis Systems for Member Loas (Global-Y is Vertical) Local Y Direction (UNI Y -2) Global Y Direction (UNI GY -2) Projecte Y Direction (UNI PY -2) Theory Projecte Y Direction (UNI PY -2) Graphics

24 Axis & Sign Convention Member En Forces - Transnational Degrees

25 Axis & Sign Convention Member En Forces Rotational Degrees

26 Loas Self Weight Joint Loas Concentrate Loa & Moments Support Displacement Loas Member Loas Uniform Force & Moment (Full / Partial) (1, 2, 3) Concentrate Force & Moment (1, 2) Floor Loa & Area Loa (new GX, GZ Floor Loa) Linear Varying & Trapezoial Loa Pre-Stress / Post-Stress Loa Hyrostatic Trapezoial Loa Temperature Loa (x, y, z) Fixe En Loa

27 Loas Plate Element Loas Pressure (Full / Partial) Concentrate Force (x, y) Trapezoial & Hyrostatic Trapezoial Loa Surface Element Pressure Generate Loas Win Loa Seismic Co-efficient Metho Repetitive Moving Loa Dynamic Loas Time History Response Spectrum Combine Effect of Loas Combination (Algebraic, SRSS, ABS) Repeat Loa

28 Coes & Shapes Design Coes IS 800 for Steel esign IS 456 & 1893 for RCC esign Shapes supporte Shapes inclue I-Beams with or without cover plates, channels, angles, ouble angles/ channels, pipes an tubes (HSS Sections) for Steel esign Also built-in steel tables Design of circular, rectangular, I an L shape, trapezoial an Tee sections for RCC esign.

29 Earthquake Analysis IS (Part 1) Parameters: Seismic Zone Coefficient Response Reuction Factor Importance Factor Soil Site Factor Type of Structure Damping Ratio (obtain Multiplication Factor for Sa/g) Depth of Founation below Groun Level Reuction of A h ue to Depth of Founation Acceleration as Function of Time Perio an Soil Type Evaluation of Base Shear Distribution of Lateral Storey Forces

30 Typical Comman Sequence STAAD SPACE UNIT METER KN JOINT COORDINATES MEMBER INCIDENCES MATERIAL CONSTANTS MEMBER PROPERTY SUPPORTS DEFINE 1893 LOAD ZONE. RF.. I. JOINT WEIGHT LOAD 1 SEISMIC X DIRECTION LOAD 2 SEISMIC Z DIRECTION LOAD 3 LOAD SELFWEIGHT LOAD 4. LOAD COMB 11 PERFORM ANALYSIS PRINT SUPPORT REACTION START CONCRETE DESIGN CODE INDIAN FC.. ALL FYMAIN.. ALL FYSEC. ALL DESIGN COLUMN DESIGN BEAM END CONCRETE DESIGN FINISH

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