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Structural Analysis, Design and Detailing for Buildings

Structural Analysis, Design and Detailing for Buildings

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Struds overview Struds overview Presentation Transcript

  • Struds cscworld.com 15/12/2011
  • Award Winning Integrated Structural Analysis, Design and Detailing Software with 20 Years Proven Track Record 6000+ user base all over India…cscworld.com 2
  • Graphical user interface Main Menu Toolbar Menu Tree Menu Command Promptcscworld.com 3
  • Modeling Features  Slabs  Curved Beams  Rectangular Slab  With three points  With Start point  Triangular Slab Center and end point  Trapezoidal Slab  With start point,  General Slab Center , included angle  With Start point, End  Flat Slab point and radius  Beams  Straight Beam  Inclined Beamcscworld.com 4
  • Modeling Features Inclined Beam Triangular Slab Curved Beam Rectangular Slab General Slab Straight beamcscworld.com 5
  • Modeling Features  Columns  Shear Walls  Rectangular  Straight  Circular  L- Shape  T-Shape  C- Shape  L- Shapecscworld.com 6
  • Modeling Features L Shape L Shape Shearwall Shearwall L Shape Column C Shape Shearwall Rectangular T Shape Circular Column Column Columncscworld.com 7
  • 3 D Wire framecscworld.com 8
  • 3 D Render Viewcscworld.com 9
  • Support Conditions  Fixed  Hinged  Roller  User Defined Member Releases  Pinned – Pinned  Pinned – Fixed  Fixed – Pinned  Fixed - Fixed  User Definedcscworld.com 10
  • Import / Export from 3rd party software Import Export STAAD Pro File Import Export  STRUDS model could be opened in STAAD to visualize the structure and also to perform analysis.  STAAD model along with analysis could be imported in STRUDS for design and detailing.cscworld.com 11
  • Exports / Imports ETABS (*.$ET) File STRUDS model could be opened in ETABS to visualize the structure and also toperform analysis. ETABS model along with its analysis file could be imported in STRUDS for designand detailing.cscworld.com 12
  • Exports / Imports AutoCAD (DXF) File Import Export  STRUDS imports the floor centerline plan from Auto CAD, using DXF file format.  Files generated in STRUDS can be exported to Auto CAD in DXF file format.cscworld.com 13
  • EQ Load Analysis User provides basic data in a single window Struds automatically generates seismic loads as per IS:1893 (2002) from the basic data Automatic live load reduction on floors Eccentricity due to centre of mass and centre of stiffness considered Soft storey effect can be considered for column design Floor diaphragm action can be taken into account Scaling factor automatically computed Consideration of vertical seismic loads on cantilever projectionscscworld.com 14
  • Torsion effect Y L EQx CM ey ey W ex ex X EQycscworld.com 15
  • Torsion effect C.M.As per Cl. 7.9 Seismic Force acts at ELcenter of mass which is same as a eforce (EL) plus a twisting moment C.S..(EL.e) acting at center of stiffness. C.M. e EL EL . e C.S..cscworld.com 16
  • Floor Diaphragm Actioncscworld.com 17
  • Soft storey effect Soft Storeys can be defined. User should enter the factor, by which the end actions for all the members of this soft storey need to be modified. Due to this the beams at the upper and lower level, as well as the columns in between these two levels, will be designed for the elemental end forces obtained in the analysis multiplied by the factor, By default the factor is taken as 2.5 which you have specified.cscworld.com 18
  • Vertical seismic load effects in horizontal cantileverscscworld.com 19
  • Scaling Factor As per clause number 7.8.2 of IS 1893(Part 1) :2002 If we generate earthquake loads by response spectrum method, the design base shear (VB) shall be compared with a base shear (VB) calculated by using a fundamental period Ta, where Ta is as per clause 7.6 where VB is less than VB, all the response quantities (Member forces, displacements, story forces, story shears and base reactions) shall be multiplied by VB / VB Scaling factor = VB / VBcscworld.com 20
  • Seismic Analysis Methods Static Analysis In Static analysis the fundamental time period is calculated using IS 1893(part 1):2002 • Frame Stiffness method • Column Reaction method Dynamic Analysis Response Spectrum method STRUDS calculates design base shear calculation using the response spectracscworld.com 21
  • Frame Stiffness Method 1Unit Load W3 PF3Q3 W2 h3Q2 PF2 W1 h2Q1 h1 PF1 PF1 K1 = 1 / Δ1 Wh2 = W1h12 + W2h22 + W3h32 Similarly, K2 = = 1 / Δ2 , K3 = = 1 / Δ3 Q1 = (W1h12 / Wh2) x VbPF1 K = K1 + K2 + K 3 Similarly base shear is calculated for Q2 Distribution Factor DF1 = K1 / K Q3 VbPF1 = DF1 x Vbx cscworld.com 22
  • Frame Stiffness Method Reportcscworld.com 23
  • Column Reaction Method Q5 R6 1 R5Unit Load W3 W2 h3 Q3 R4 R3 W1 h2 Vb1 Q1 R2 h1 R1 R = R1 +R2 + R3Wh2 2 2 = W1h1 + W2h2 + W3h3 2 Distribution Factor DF1 = R1 /R 2Vb1 = (W1h1 / Wh2) x Vbx Q1 = DF1 x Vb1Similarly base shear is calculated for Vb2Vb3 Similarly the Q2 ,Q3 ,Q4,Q5 and Q6 is calculated cscworld.com 24
  • Column Reaction Method Reportcscworld.com 25
  • Response Spectrum MethodLumped mass generationFrequency calculationTime period calculationCalculation of base shear asper given spectra and time periodfor particular mode shapeSuper impose of base shear ofall mode shapes using SRSSmethod.cscworld.com 26
  • Response Spectrum Method Report Earthquake load parameters Floor wise lumped loads on column / shear wall nodes  Frequency Time Period and % Mass Participation (Eigen value Analysis) Mode shape coefficient (Eigen Vector) Scale factor calculation based on static and dynamic base shear calculation Floor wise distribution of base shear  Distribution of floor base shear to column and shear wall nodes Contribution of shear walls and column in Eq. resistance of building.cscworld.com 27
  • Response Spectrum Method Reportcscworld.com 28
  • Response Spectrum Method Reportcscworld.com 29
  • Wind Load Parameter As Per IS 875(part 3):1987cscworld.com 30
  • Wind load generation by Framing Method W3 W3 X W2 h3 Y W2 2 X W1 h2 Y1 h1 W1 X1 X2 X W1x = [Y1 / 2 * (( h1 / 2) + ( h2 / 2))] * PzK = K1 * K2 * K3 W2x = [((Y1 / 2 ) + (Y2 / 2 )) * ((h1/ 2) + (h2 / 2))] * PzVz = Vb * K W1y = [X1 / 2 * (( h1 / 2 ) + ( h2 / 2 ))] * PzPz = 0.6 * Vz * Vz W2y = [((X1 / 2 ) + (X2 / 2 )) * (( h1/ 2) + (h2/ 2 ))] *Pz Similarly Wind Load on all frames and all floors is calculatedcscworld.com 31
  • Report for Wind load generation by Framing Methodcscworld.com 32
  • Wind load generation by Notional Method Floor3 Floor1 Floor2 h3 M Y1 W1X h2 Y1/ 2 Floor1 W1y h1 X1 / 2 X1LengthK = K 1 * K2 * K3 Total wind load on floor 1- W1x = (Y1 * ( h1 / 2 ) + Y1 * ( h2 / 2)) * PzVz = Vb * K Total wind load on floor 1- W1y = (X1 * ( h1 / 2 ) + X1 * ( h2 / 2)) * Pz Similarly Wind load on floor 2 and 3 is calculated in X and Y direction.Pz = 0.6 * Vz * Vz This load is transferred to all column and shear wall nodes through diaphragm action.cscworld.com 33
  • Report for Wind load generation by Notional Methodcscworld.com 34
  • 3D Animation for modesWithout animation With animationcscworld.com 35
  • Post ProcessorFor the desired Load combinations Shear Force Diagram Bending Moment Diagram Axial Force Diagram Nodal deflections Support Reactions are displayed.cscworld.com 36
  • Post Processor – Shear Force Diagramcscworld.com 37
  • Post Processor – Bending Moment Diagramcscworld.com 38
  • Post Processor – Deflection Diagramcscworld.com 39
  • Reports in Post ProcessorReports generated in the Post Processor  Elemental Results  Nodal Reactions  Elemental End Actions  For the desired load combinations  Shear Wall Analysis Reportcscworld.com 40
  • Shear Wall Analysis Reportcscworld.com 41
  • Design Design of R.C.C structural components done using clauses of IS 456:2000, IS 13920 • One Way/ Two Way / Cantilever Slabs • Flats slabs (as per IS coefficient method) • Rectangular, T, L beams • Rectangular, Circular, L shape, T shape columns • Shear wall • Isolated footings (flat, sloping) • Combined footings (including strip footings) • Raft with beam • Piles (Under reamed / End bearing) • Steel Trusses placed on concrete columnscscworld.com 42
  • Slab Design Rectangular slab (Two-way, One- way, Cantilever, Flat ) Triangular slab Trapezoidal slab (Two-way, One- way) General Slabcscworld.com 43
  • Slab Designcscworld.com 44
  • Slab Auto CAD Output (DXF) Slab detailing along with plan Auto generation of section line for longitudinal section of slab User defined section line for longitudinal section of slab Slab longitudinal section with one direction reinforcement Slab longitudinal section with both direction reinforcement Flat slab detailingcscworld.com 45
  • Auto CAD Output (DXF) drawing settings Following things can be done using this dialog box. 1. Color of any layer in drawing 2. Font of lettering 3. Line type 4. Layer on / off 5. Can create library of settings to implement in all other projectscscworld.com 46
  • Slab DXF OutputSlab longitudinal section with one direction reinforcementSlab longitudinal section with both direction reinforcementcscworld.com 47
  • Flat Slab Detailingcscworld.com 48
  • Slab Reports Slab design detail report Slab schedule report Slab quantity report Flat slab detail report Flat slab schedule reportcscworld.com 49
  • Slab HTML Reportscscworld.com 50
  • Beam Design Linear Curved T-Shape L-Shapecscworld.com 51
  • Beam AutoCAD Output (DXF) Longitudinal section of beams with cross section Option for user defined detailing Cross section at support and mid span Option for position of lap, lap –length. Option for position of anchor length Option for Top , bottom, centre flushing of beam in longitudinal sectioncscworld.com 52
  • Longitudinal Section of Beam with cross sectioncscworld.com 53
  • Beam Report Design detail report Beam schedule report Beam capacity report i.e. (Beam capacity at different position) Beam deflection report (with factor and working load ) Bar bending schedule Beam quantity Detail report in PDF formatcscworld.com 54
  • Beam HTML Reportscscworld.com 55
  • Beam PDF Reportscscworld.com 56
  • Column Design Rectangular Circular T-Shape L-Shapecscworld.com 57
  • HTML Reports Column Designcscworld.com 58
  • Column Design With Detailingcscworld.com 59
  • Column AutoCAD Output (DXF) Column cross section detailing of all floor in vertical formatcscworld.com 60
  • Column Reports Column design detail report Column load detail report GroupWise Column report Floor Wise Column reportcscworld.com 61
  • Column HTML Reportcscworld.com 62
  • Shear Wall Design Straight L-type C-typecscworld.com 63
  • Shear Wall Auto CAD Output (DXF)Longitudinal and Cross section detailing of Shear wall cscworld.com 64
  • Shear Wall Reports Shear Wall design detail report Shear Wall load detail report Shear Wall report GroupWise. Shear Wall report Floor Wisecscworld.com 65
  • Shear Wall HTML Reportcscworld.com 66
  • Footing Design Individual Footing • Trapezoidal • Flat • Pedestal with flat • Pedestal with Trapezoidal Combined Footing Strip Footing Pile Footing • Driven Cast in -situ • Bored Cast in –situ • Driven Pre Cast • Bored Pre Cast • Under – reamed Bored Compaction • Under – reamed Cast in-situ Raft Footing (Slab Beam system)cscworld.com 67
  • Footing Designcscworld.com 68
  • Footing Auto CAD Output (DXF) Footing Center line with C.G. distances Footing plan and elevation Pile detailingcscworld.com 69
  • Footing Center line with C.G. distancescscworld.com 70
  • Footing plan and elevationcscworld.com 71
  • Pile Detailingcscworld.com 72
  • Footing Reports Footing schedule report Footing detail design report Footing load report Footing quantity reportcscworld.com 73
  • Footing HTML Reportscscworld.com 74
  • Some Real Life Buildings Designed Using Strudscscworld.com 75
  • Some Real Life Buildings Designed Using Strudscscworld.com 76
  • Some Real Life Buildings Designed Using Strudscscworld.com 77
  • Some Real Life Buildings Designed Using Strudscscworld.com 78
  • Thank Youcscworld.com 79