Struds overview

Structural Analysis, Design and Detailing for Buildings

1. Struds

2. cscworld.com 2 Award Winning Integrated Structural Analysis, Design and Detailing Software with 20 Years Proven Track Record 6000+ user base all over India…

3. Graphical user interface cscworld.com 3 Tree Menu Command Prompt Main Menu Toolbar Menu

4. Modeling Features cscworld.com 4 Slabs Rectangular Slab Triangular Slab Trapezoidal Slab General Slab Flat Slab Curved Beams With three points With Start point Center and end point With start point, Center , included angle With Start point, End point and radius Beams Straight Beam Inclined Beam

5. cscworld.com 5 Curved Beam Inclined Beam Triangular Slab Rectangular Slab General Slab Straight beam Modeling Features

6. cscworld.com 6 Modeling Features Columns Rectangular Circular T-Shape L- Shape Shear Walls Straight L- Shape C- Shape

7. cscworld.com 7 Modeling Features L Shape Shearwall C Shape Shearwall L Shape Shearwall Circular Column T Shape Column L Shape Column Rectangular Column

8. 3 D Wire frame cscworld.com 8

9. 3 D Render View cscworld.com 9

10. Support Conditions cscworld.com 10 Fixed Roller Hinged User Defined Member Releases Pinned – Pinned Fixed – Pinned User Defined Pinned – Fixed Fixed - Fixed

11. Import / Export from 3 rd party software Import Export STAAD Pro File cscworld.com 11 Export Import 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.

12. Exports / Imports ETABS (*.$ET) File cscworld.com 12 STRUDS model could be opened in ETABS to visualize the structure and also to perform analysis. ETABS model along with its analysis file could be imported in STRUDS for design and detailing.

13. Exports / Imports AutoCAD (DXF) File cscworld.com 13 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. Export Import

14. EQ Load Analysis cscworld.com 14 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 projections

15. Torsion effect cscworld.com 15 CM EQx EQy L W Y X ex ex ey ey

16. cscworld.com 16 C.M . C.S.. EL e EL . e C.S.. C.M . EL e As per Cl. 7.9 Seismic Force acts at center of mass which is same as a force (EL) plus a twisting moment ( EL.e ) acting at center of stiffness. Torsion effect

17. Floor Diaphragm Action cscworld.com 17

18. Soft storey effect cscworld.com 18 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, which you have specified. By default the factor is taken as 2.5

19. Vertical seismic load effects in horizontal cantilevers cscworld.com 19

20. Scaling Factor cscworld.com 20 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 V B, all the response quantities (Member forces, displacements, story forces, story shears and base reactions) shall be multiplied by V B / V B Scaling factor = V B / V B

21. Seismic Analysis Methods cscworld.com 21 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 spectra

22. Frame Stiffness Method cscworld.com 22 PF1 PF2 PF3 PF1 Unit Load W1 W2 W3 h1 h2 h3 1 Q 1 Q 2 Q 3 K 1 = 1 / Δ 1 Similarly, K 2 = = 1 / Δ 2 , K 3 = = 1 / Δ 3 K = K 1 + K 2 + K 3 Distribution Factor DF 1 = K 1 / K V bPF1 = DF 1 x V bx Wh 2 = W 1 h 1 2 + W 2 h 2 2 + W 3 h 3 2 Q 1 = (W 1 h 1 2 / Wh 2 ) x V bPF1 Similarly base shear is calculated for Q 2 Q 3

23. cscworld.com 23 Frame Stiffness Method Report

24. Column Reaction Method cscworld.com 24 Unit Load W1 W2 W3 h1 h2 h3 1 V b1 R1 R3 R5 R2 R4 R6 Q1 Q3 Q5 R = R 1 +R 2 + R 3 Distribution Factor DF 1 = R 1 /R Q 1 = DF 1 x V b1 Similarly the Q 2 ,Q 3 ,Q 4 ,Q 5 and Q 6 is calculated Wh 2 = W 1 h 1 2 + W 2 h 2 2 + W 3 h 3 2 V b1 = (W 1 h 1 2 / Wh 2 ) x V bx Similarly base shear is calculated for V b2 V b3

25. cscworld.com 25 Column Reaction Method Report

26. Response Spectrum Method cscworld.com 26 Lumped mass generation Frequency calculation Time period calculation Calculation of base shear as per given spectra and time period for particular mode shape Super impose of base shear of all mode shapes using SRSS method.

27. cscworld.com 27 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.

28. cscworld.com 28 Response Spectrum Method Report

29. cscworld.com 29 Response Spectrum Method Report

30. Wind Load Parameter As Per IS 875(part 3):1987 cscworld.com 30

31. Wind load generation by Framing Method cscworld.com 31 W1 W2 W3 h1 h2 h3 X 1 X 2 Y 1 Y 2 W 1X W 2X W 3X K = K 1 * K 2 * K 3 V z = V b * K P z = 0.6 * V z * V z W 1x = [Y 1 / 2 * (( h 1 / 2) + ( h 2 / 2))] * P z W 2x = [((Y 1 / 2 ) + (Y 2 / 2 )) * ((h 1 / 2) + (h 2 / 2))] * P z W 1y = [X 1 / 2 * (( h 1 / 2 ) + ( h2 / 2 ))] * P z W 2y = [((X 1 / 2 ) + (X 2 / 2 )) * (( h 1 / 2) + (h 2 / 2 ))] * P z Similarly Wind Load on all frames and all floors is calculated

32. Report for Wind load generation by Framing Method cscworld.com 32

33. Wind load generation by Notional Method cscworld.com 33 Floor2 Floor3 h1 h2 h3 Floor1 X 1 Length Y 1 W 1X M X 1 / 2 Y 1 / 2 W 1y Floor1 K = K 1 * K 2 * K 3 V z = V b * K P z = 0.6 * V z * V z Total wind load on floor 1- W 1x = (Y 1 * ( h 1 / 2 ) + Y 1 * ( h 2 / 2)) * P z Total wind load on floor 1- W 1 y = (X 1 * ( h 1 / 2 ) + X 1 * ( h 2 / 2)) * P z Similarly Wind load on floor 2 and 3 is calculated in X and Y direction. This load is transferred to all column and shear wall nodes through diaphragm action.

34. Report for Wind load generation by Notional Method cscworld.com 34

35. 3D Animation for modes cscworld.com 35 Without animation With animation

36. Post Processor cscworld.com 36 For the desired Load combinations Shear Force Diagram Bending Moment Diagram Axial Force Diagram Nodal deflections Support Reactions are displayed.

37. Post Processor – Shear Force Diagram cscworld.com 37

38. cscworld.com 38 Post Processor – Bending Moment Diagram

39. cscworld.com 39 Post Processor – Deflection Diagram

40. Reports in Post Processor cscworld.com 40 Reports generated in the Post Processor Elemental Results Nodal Reactions Elemental End Actions For the desired load combinations Shear Wall Analysis Report

41. Shear Wall Analysis Report cscworld.com 41

42. 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 columns cscworld.com 42

43. Slab Design cscworld.com 43 Rectangular slab (Two-way, One-way, Cantilever, Flat ) Triangular slab Trapezoidal slab (Two-way, One-way) General Slab

44. Slab Design cscworld.com 44

45. Slab Auto CAD Output (DXF) cscworld.com 45 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 detailing

46. Auto CAD Output (DXF) drawing settings cscworld.com 46 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 projects

47. Slab DXF Output cscworld.com 47 Slab longitudinal section with one direction reinforcement Slab longitudinal section with both direction reinforcement

48. Flat Slab Detailing cscworld.com 48

49. Slab Reports cscworld.com 49 Slab design detail report Slab schedule report Slab quantity report Flat slab detail report Flat slab schedule report

50. Slab HTML Reports cscworld.com 50

51. Beam Design cscworld.com 51 Linear Curved T-Shape L-Shape

52. Beam AutoCAD Output (DXF) cscworld.com 52 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 section

53. Longitudinal Section of Beam with cross section cscworld.com 53

54. Beam Report cscworld.com 54 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 format

55. cscworld.com 55 Beam HTML Reports

56. Beam PDF Reports cscworld.com 56

57. Column Design cscworld.com 57 Rectangular Circular T-Shape L-Shape

58. HTML Reports Column Design cscworld.com 58

59. Column Design With Detailing cscworld.com 59

60. Column AutoCAD Output (DXF) cscworld.com 60 Column cross section detailing of all floor in vertical format

61. Column Reports cscworld.com 61 Column design detail report Column load detail report GroupWise Column report Floor Wise Column report

62. Column HTML Report cscworld.com 62

63. Shear Wall Design cscworld.com 63 Straight L-type C-type

64. Shear Wall Auto CAD Output (DXF) cscworld.com 64 Longitudinal and Cross section detailing of Shear wall

65. Shear Wall Reports cscworld.com 65 Shear Wall design detail report Shear Wall load detail report Shear Wall report GroupWise. Shear Wall report Floor Wise

66. Shear Wall HTML Report cscworld.com 66

67. Footing Design cscworld.com 67 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)

68. Footing Design cscworld.com 68

69. Footing Auto CAD Output (DXF) cscworld.com 69 Footing Center line with C.G. distances Footing plan and elevation Pile detailing

70. Footing Center line with C.G. distances cscworld.com 70

71. Footing plan and elevation cscworld.com 71

72. Pile Detailing cscworld.com 72

73. Footing Reports cscworld.com 73 Footing schedule report Footing detail design report Footing load report Footing quantity report

74. Footing HTML Reports cscworld.com 74

75. Some Real Life Buildings Designed Using Struds cscworld.com 75

76. Some Real Life Buildings Designed Using Struds cscworld.com 76

77. Some Real Life Buildings Designed Using Struds cscworld.com 77

78. Some Real Life Buildings Designed Using Struds cscworld.com 78

79. Thank You cscworld.com 79