Features of AStrutTie

Introduction ››
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Ease of Use

·Intelligent graphical user interfaces

·Visualizations by using view option windows

·U.S customary and metric (SI) units

·Tabular and dialog inputs

·2-D on-screen graphics

·Graphical display of applied loads, boundary conditions, and structural analysis results

·Visual and tabular verifications of strength conditions of struts and nodes

·9 templates for typical D-regions and structural members

·Design checks on user interfaces

·Preview of structural design report

·Report output as Word (*.rtf) or Excel (*.xlsx) or Pdf (*.pdf) file

·Importation of *.dxf file for modeling of solid and truss structures

·Verified (in)determinate strut-tie models for templates

·Unconstrained solid and truss modelings for strut-tie model design


Support Items of Templates1

Corbel (Bracket)

·Automatic Determination of Location of STM Node subjected to Applied Loads

Abutment/Pier Footing

·Spread and Pile Footings bounded by Springs

·Automatic Conversion of Applied Loads to Pile Reactions

·Automatic Assignment of Soil/Pile Reactions to Spring Constants

·Automatic Construction of STM according to Pile Locations and Number of Pile

·Automatic Determination of Pile Locations by Inputing Number of Pile

Bridge Pier Coping (Pier Cap)

·Automatic Construction of STM by Selecting Load Transfer Mechanism (Arch, Vertical Truss)

·Automatic Construction of STM according to Number of Concentrated Load Point

Frame Corner

·Four Separate Templates according to Moment Types and Corner Shapes

·Four Basic Types of Strut-Tie Models recommended by EC2

Anchorage Zone

·Automatic Construction of STM considering AASHTO LRFD's Bursting Force Location

·Tendon Layout, and Number of Anchor Plate

Deep Beam with Concentrated Loads

·Three Types of FIB Strut-Tie Models according to Shear Span-to-Effective Depth Ratio (Arch, Vertical Truss, Combined)

·Automatic Construction of STM according to Number of Load Point, Symmetric/Asymmetric Load, and Symmetric/Asymmetric Geometrical Shape

Continuous Beams with Distributed Loads

·Automatic Construction of STM resulting in Vertical and Horizontal Reinforcing Bars

·STM for Continuous Deep Beams


Support Items of Templates2

Beam-Column Joint

·Automatic Determination of Location of STM Node subjected to Clear Cover

·Two Separate Templates according to Joint Shapes (Interior & Exterior Joints)

·Cover Moment and Shear Force acting on Beam and Column

·Automatic Construction of STM according to the Direction of Moment        s

Continuous Deep Beam with Concentrated Loads

·Support Two-Span Continuous Deep Beam with Concentrated Loads

·Automatic Construction of STM resulting in Vertical and Horizontal Reinforcing Bars

PSC Box

·Two Separate Templates according to Shape of Diaphragm (Solid & Hollow Types)

·Cover Shear Force and Torsion acting on PSC Box

·Automatic Construction of STM according to Location of Bearing Plates and Direction of Torsion


Included Design Codes

·AASHTO LRFD (2014)

·ACI 318-14 (2014)

·EC 2 (2004)


Items for Design Checks

·Strength Verification of Concrete Struts

·Required Areas of Steel Ties (Flexural Rebars, Shear Rebars, Supplementary Rebars)

·Strength Verification of Nodal Zones (Concentrated and Smeared Node)

·Anchorage of Rebars at Critical Nodal Zones

·Minimum Reinforcement Ratio for Serviceability


Convenient Editing Tools for Truss Structure

·Versatile Editing Tools supplied by the Nine Templates

·User-based General Editing Tools (Cut, Copy, Paste, Delete, Find, Divide, Offset, Move, Stretch, Mirror, Rotate)

·Object Osnap (End, Mid, Cross, Near, Perpendicular Point)

·Guidelines and Grid Points

·STM Constructed from Boundary Lines of Concrete Member

·Automatic Check of Object Overlaps

·Modeling of Structures by Dxf Import/Export


Functions of Truss Solver

·Analysis of Internally/Externally Determinate/Indeterminate Truss Structures

·Inclined, Horizontal, and Vertical Restraints by Spring, Hinge, and Roller

·Determination of Required Areas and Forces of Struts and Ties by Iterative Technique

·Safety Evaluation of Existing Structural Members by Assigning Steel Tie Areas

·Calculation of Available Areas of Struts and Ties

·Determination of Average Principal Tensile Strain of Reinforcing Bars crossing Perpendicularly to Concrete Strut by Iterative Technique

·Automatic Transformation of Distributed Forces to Nodal Forces


Functions of Plane Solid Solver

·Analysis of Plane Stress and Plane Strain Problems

·Inclined, Horizontal, and Vertical Restraints by Spring, Hinge, and Roller

·Optimized Mesh Generater according to Concrete Member Shape

·Automatic Transformation of Distributed Forces to Nodal Forces

·Calculation of Principal Stresses and Directions

·Relative Lengths and Colors of Principal Stresses along Principal Directions

·Implementation of Evolutionary Structural Optimization Technique