11/04/2023
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Struds
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Award Winning Integrated Structural Analysis, Design and Detailing Software with 20 Years Proven Track Record
6000+ user base all over India…
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Graphical user interface
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Tree Menu
Command Prompt
Main Menu Toolbar Menu
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Modeling Features
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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
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Curved Beam
Inclined BeamTriangularSlab
RectangularSlab
GeneralSlab
Straightbeam
Modeling Features
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Modeling Features
Columns
Rectangular
Circular
T-Shape
L- Shape
Shear Walls Straight
L- Shape
C- Shape
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Modeling Features
L Shape Shearwall
C Shape Shearwall
L Shape Shearwall
Circular Column
T Shape Column
L Shape Column
Rectangular Column
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3 D Wire frame
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3 D Render View
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Support Conditions
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Fixed
Roller
Hinged
User Defined
Member Releases
Pinned – Pinned
Fixed – Pinned
User Defined
Pinned – Fixed
Fixed - Fixed
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Import / Export from 3rd party software
Import Export STAAD Pro File
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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.
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Exports / Imports ETABS (*.$ET) File
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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.
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Exports / Imports AutoCAD (DXF) File
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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
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EQ Load Analysis
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User provides basic data in a single windowStruds automatically generates seismic loads as per IS:1893 (2002) from the basic dataAutomatic live load reduction on floors Eccentricity due to centre of mass and centre of stiffness consideredSoft storey effect can be considered for column designFloor diaphragm action can be taken into accountScaling factor automatically computedConsideration of vertical seismic loads on cantilever projections
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Torsion effect
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CMEQx
EQy
L
W
Y
X
ex ex
ey
ey
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C.M.
C.S..
ELe
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
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Floor Diaphragm Action
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Soft storey effect
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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
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Vertical seismic load effects in horizontal cantilevers
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Scaling Factor
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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 / VB
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Seismic Analysis Methods
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Static AnalysisIn Static analysis the fundamental time period is
calculated using IS 1893(part 1):2002• Frame Stiffness method• Column Reaction method
Dynamic AnalysisResponse Spectrum method STRUDS calculates design base shear calculation
using the response spectra
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Frame Stiffness Method
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PF1
PF2
PF3
PF1
Unit Load
W1
W2
W3
h1
h2
h3
1
Q1
Q2
Q3
K1 = 1 / Δ1
Similarly, K2 = = 1 / Δ2 , K3 = = 1 / Δ3
K = K1 + K2 + K3
Distribution Factor DF1 = K1 / K
VbPF1 = DF1 x Vbx
Wh2 = W1h12 + W2h2
2 + W3h32
Q1 = (W1h12 / Wh2) x VbPF1
Similarly base shear is calculated for Q2 Q3
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Frame Stiffness Method Report
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Column Reaction Method
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Unit Load
W1
W2
W3
h1
h2
h3
1
Vb1
R1
R3
R5
R2
R4
R6
Q1
Q3
Q5
R = R1 +R2 + R3
Distribution Factor DF1 = R1 /R
Q1 = DF1 x Vb1
Similarly the Q2 ,Q3 ,Q4,Q5 and Q6 is calculated
Wh2 = W1h12 + W2h2
2 + W3h32
Vb1 = (W1h12 / Wh2) x Vbx
Similarly base shear is calculated for Vb2 Vb3
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Column Reaction Method Report
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Response Spectrum Method
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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.
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Response Spectrum Method ReportEarthquake 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.
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Response Spectrum Method Report
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Response Spectrum Method Report
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Wind Load Parameter As Per IS 875(part 3):1987
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Wind load generation by Framing Method
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W1
W2
W3
h1
h2
h3
X1 X2
Y1
Y2
W1X
W2X
W3X
K = K1 * K2 * K3
Vz = Vb * K
Pz = 0.6 * Vz * Vz
W1x = [Y1 / 2 * (( h1 / 2) + ( h2 / 2))] * Pz
W2x = [((Y1 / 2 ) + (Y2 / 2 )) * ((h1/ 2) + (h2 / 2))] * Pz
W1y = [X1 / 2 * (( h1 / 2 ) + ( h2 / 2 ))] * Pz
W2y = [((X1 / 2 ) + (X2 / 2 )) * (( h1/ 2) + (h2/ 2 ))] *Pz
Similarly Wind Load on all frames and all floors is calculated
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Report for Wind load generation by Framing Method
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Wind load generation by Notional Method
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Floor2
Floor3
h1
h2
h3
Floor1
X1Length
Y1 W1X
M
X1 / 2
Y1/ 2
W1y
Floor1
K = K1 * K2 * K3
Vz = Vb * K
Pz = 0.6 * Vz * Vz
Total wind load on floor 1- W1x = (Y1 * ( h1 / 2 ) + Y1 * ( h2 / 2)) * Pz
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.This load is transferred to all column and shear wall nodes through diaphragm action.
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Report for Wind load generation by Notional Method
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3D Animation for modes
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Without animation With animation
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Post Processor
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For the desired Load combinations
Shear Force Diagram
Bending Moment Diagram
Axial Force Diagram
Nodal deflections
Support Reactions are displayed.
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Post Processor – Shear Force Diagram
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Post Processor – Bending Moment Diagram
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Post Processor – Deflection Diagram
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Reports in Post Processor
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Reports generated in the Post Processor
Elemental Results
Nodal Reactions
Elemental End Actions
For the desired load combinations
Shear Wall Analysis Report
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Shear Wall Analysis Report
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DesignDesign 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
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Slab Design
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Rectangular slab (Two-way, One-way, Cantilever, Flat )Triangular slabTrapezoidal slab (Two-way, One-way)General Slab
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Slab Design
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Slab Auto CAD Output (DXF)
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Slab detailing along with plan Auto generation of section line for longitudinal section of slabUser defined section line for longitudinal section of slabSlab longitudinal section with one direction reinforcementSlab longitudinal section with both direction reinforcementFlat slab detailing
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Auto CAD Output (DXF) drawing settings
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Following things can be done using this dialog box.1. Color of any layer in drawing2. Font of lettering3. Line type 4. Layer on / off5. Can create library of settings to implement in all other projects
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Slab DXF Output
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Slab longitudinal section with one direction reinforcement
Slab longitudinal section with both direction reinforcement
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Flat Slab Detailing
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Slab Reports
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Slab design detail report Slab schedule reportSlab quantity reportFlat slab detail reportFlat slab schedule report
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Slab HTML Reports
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Beam Design
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Linear Curved T-ShapeL-Shape
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Beam AutoCAD Output (DXF)
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Longitudinal section of beams with cross sectionOption for user defined detailingCross section at support and mid spanOption for position of lap, lap –length.Option for position of anchor length Option for Top , bottom, centre flushing of beam in longitudinal section
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Longitudinal Section of Beam with cross section
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Beam Report
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Design detail reportBeam schedule reportBeam capacity report i.e. (Beam capacity at different position)Beam deflection report (with factor and working load )Bar bending scheduleBeam quantityDetail report in PDF format
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Beam HTML Reports
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Beam PDF Reports
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Column Design
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RectangularCircularT-ShapeL-Shape
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HTML Reports Column Design
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Column Design With Detailing
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Column AutoCAD Output (DXF)
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Column cross section detailing of all floor in vertical format
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Column Reports
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Column design detail reportColumn load detail reportGroupWise Column reportFloor Wise Column report
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Column HTML Report
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Shear Wall Design
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StraightL-typeC-type
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Shear Wall Auto CAD Output (DXF)
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Longitudinal and Cross section detailing of Shear wall
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Shear Wall Reports
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Shear Wall design detail reportShear Wall load detail reportShear Wall report GroupWise.Shear Wall report Floor Wise
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Shear Wall HTML Report
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Footing Design
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Individual Footing• Trapezoidal• Flat• Pedestal with flat• Pedestal with Trapezoidal
Combined FootingStrip FootingPile 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)
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Footing Design
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Footing Auto CAD Output (DXF)
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Footing Center line with C.G. distancesFooting plan and elevation Pile detailing
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Footing Center line with C.G. distances
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Footing plan and elevation
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Pile Detailing
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Footing Reports
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Footing schedule reportFooting detail design reportFooting load report Footing quantity report
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Footing HTML Reports
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Some Real Life Buildings Designed Using Struds
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Some Real Life Buildings Designed Using Struds
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Some Real Life Buildings Designed Using Struds
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Some Real Life Buildings Designed Using Struds
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Thank You
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