Structural Engineering Analysis and Design Software


ASTRA Pro software from TechSOFT Engineering Services is based on Structural modeling technique and is today’s established name in offering the users all the facilities of structural analysis in the simplest way. It accepts User’s data in the form of Text Data or Interactive data. It offers the facility to use commonly formatted data structures to create automatic modeling and then to go for Analysis to generate Detail Report to display visual presentation of Animated model for Load deflection and finally to create CAD drawings for Reinforcement Detailing, 3D dynamic rotation view, Bar bending schedule and Take off quantity. In Structural engineering various software products are available in the market, but the essence of Astra lies in its simplicity for applications which is a very complex process and such simplicity is hardly available in other market available products. AstrA has its own powerful CAD engine and is best appreciated for its Features, Completeness, Versatility, Fastest Processing, Simplicity, Format and details of report and Exchangeability of Input / Output with other commonly used Structural Engineering software and all popular CAD software.

Best Features

ASTRA Pro is one stop solution for various needs in Bridge / Structural Engineering Projects.




ASTRA Pro Training

Training is available as On Site, Internet Based and by Multimedia Videos.

Training on Computer Aided Bridge Design is conducted for engineers regularly. There is provisions for internet based training to the distant users on special demand. ASTRA Pro is menu driven easy to learn and use and ensures fast productivity in shortest possible time, by watching Tutorial Videos as Multimedia movies.



Step wise detail design calculations and production of CAD drawings for GAD, Structural Detailing and making changes whenever essential are the main requirements in Computer Aided Bridge Design. The process in ASTRA Pro is straight forward and can be mastered in no time even by the beginners and students.

Salient Features cum Technical Specifications

Applications for Structural Analysis:


  • Static Analysis of Structures for Member Load, Joint Load, Area Load, Repeat Load, etc.
  • Dynamic Analysis of Structures for Response Spectra,
  • Dynamic Analysis of Structures for Eigen Values,
  • Dynamic Analysis of Structures for Time History Analysis,
  • Use of Beam, Truss, Plate/Shell elements,
  • Analysis of Bridge Deck by Grillage method,
  • Analysis of Bridge Deck with Moving Loads IRC Class A, 70R Tracked and Wheeled, Class AA etc,
  • Analysis of Multi Storeyed Building Frame Structures for Member End Forces & Support Reactions,
  • In-built CAD graphics is applied to display Structural geometry and various results instantly

Applications for Design of Bridges:


  • Design of RCC T_Beam Bridge with Deck Slab, Long and Cross Girders with Analysis.
  • Design of RCC & Steel Composite Bridge with Deck Slab and Steel Girders with Analysis,
  • Design of Pre Stressed Girder Bridges , with Analysis,
  • Design of PSC Box Girder Bridge with Analysis,
  • Design of Cable Stayed Bridge by Analysis
  • Design of Steel Built up Plate Girder Railway Bridges with Analysis,
  • Design of Open Web Girder Steel Truss Bridge with Computation of DL, SIDL, LL and Analysis
  • Design of Steel Warren Truss Bridges with Analysis,
  • Design of RCC Cantilever and Counter fort Abutments with Seismic effects
  • Design of RCC Pier with Analysis
  • Design of Bridge Bearing
  • Design of RCC Well Foundations
  • Design of RCC Pile Foundations,
  • Computing Stream Hydrology & Hydrograph with DTM, Contours of Catchment Terrain
  • Computing Scour Depth & Founding Depth by Hydrological calculations for
  • The designs are produced with Detail Report and Reinforcement Detailing drawings
  • In-built CAD graphics system is applied for General Arrangement, Reinforcement Detailing etc.

Applications for Design of Culverts and Underpasses:


  • Design of RCC Box Culvert.
  • Design of Single & Multi pipe Culvert,
  • Design of RCC Slab Culvert,
  • Design of RCC Pedestrian Underpass,
  • Design of RCC Vehicular Underpass,
  • The designs are produced with Detail Report and Reinforcement Detailing drawings
  • In-built CAD graphics system is very sophisticated with drawing and dimensions

Applications for Design of Structural Components:


  • Design of RCC One way, Continuous and Two way Floor slabs.
  • Design of RCC Beams,
  • Design of RCC Columns,
  • Design of RCC Footings,
  • The designs are produced with Detail Report and Reinforcement Detailing drawings
  • In-built CAD graphics system is applied for 3D Structural View, Drawing and Bar Schedules etc.

Stream Hydrology

Stream Hydrology is computed in details from Terrain Topography by transforming Transverse marcator data to Universal Tranverse marcator (UTM) data, Referring to WGS84 origin and directly downloaded from Shuttle Radar Topography Mission (SRTM) without Topo maps. Discharge Location at Bridge is measured from farthest point of the River for water discharge at the Bridge location. The environment is 3D CAD, fully compatible to other CAD softwares.



Synthetic Unit Hydrograph is plotted by comparing sum of discharge for 1 hour interval of Time and volume of 1 cm direct Runoff.


Applications for Construction

Bridge Design is a complex subject, so the Software must provide the user ready data to produce a Design. Next user easily understands which data is to be changed and how to prepare the design data to fit his/her project requirements. ASTRA Pro guides the users to learn through the process of work, and it works perfectly.



The essential steps are computation of Self weight for Fixed or Dead Load (DL), Weight of hand Rails, Kerb Stone, Wearing Course as Superimposed Dead Load (SIDL), Moving vehicle Loads in Multiple Lanes as Live Load (LL) and applying these loads and do the Analysis of the Bridge Structure for Maximum Member Forces as Axial Force, bending Moments, Torsion and Shear, Using the Maximum Member Forces Design of the Structural members and Finally produce the drawings for Construction.

ASTRA Pro is the most excellent Bridge Design Software in the International Market


Analysis Design of Cable Stayed Bridge is facilitated by large size Model Data for the Bridge Structure.

ASTRA Pro is not just an Analysis Software, it produces Step by Step Design Calculations Report for the user making references to relevant Indian or British Standards and Structural Drawings in editable CAD form ready with Title Block.

ASTRA Pro processes Analysis for Applied Dead Load (DL), Super Imposed Dead Load SIDL) and Live Load (LL) by Moving a train of vehicles in Single or Multi Lane configuration of the Bridge Deck. User may do the analysis with either by applying individual Loading or may do the analysis by applying combined loading. In CAD engine ASTRA Pro shows the Moving Load in Animated form displaying load case wise member end forces.

ASTRA Pro produces worst member forces for Bending Moments, Shear Force, Axial Forces at various locations of the model, including Inner Girder, Outer Girder, Cross Girder, Stringer Beams, Truss and Cable members to enable the engineer to design various structural components of the Bridge.

ASTRA Pro designs the Bridge Substructures for RCC Pier and Abutments by taking the Bending Moments and Reactions from the Analysis. It also produces the design of Well/Pile/Open Foundations with CAD drawings.

ASTRA Pro offers the users to analyse a structure with Beam, Truss, Plate/Shell and Cable elements. The analysis may be done for Static as well as Dynamic. In Dynamic analysis it features for Eigen value problems, Response Spectra and Time History Analysis.

ASTRA Pro offers the users to select the design standard either as Indian Standard or as British Standard.

ASTRA Pro offers the users to analyse a structure with Beam, Truss, Plate/Shell and Cable elements. The analysis may be done for Static as well as Dynamic. In Dynamic analysis it features for Eigen value problems, Response Spectra and Time History Analysis.

ASTRA Pro produces CAD drawings compatible to AutoCAD and other drafting software to edit the various drawings to make them ready to use for the construction.

General Arrangement Drawing in CAD


General Arrangement Drawing in PLAN with Details for Proposed Expansion Joints, Crash barriers, Girder Positions, Abutment & Pier Positions, Foundation, Upstream & Downstream sides etc.

Design of RCC Bridge Abutment

Detailed Design Calculation of RCC Bridge Abutment and Structural Detail Drawing in CAD

Bridge Abutment and Structural Detail Drawing in CAD are done for Cantilever & Counter fort Ret. Wall

Design of RCC Bridge Pier, Pier Cap and Open Foundation for Fixed Load, Live Load, Seismic Force, Water Current Force with Structural Details CAD Drawings

Detailed Design Calculation of RCC Pier and Pier Cap and Structural Detail CAD Drawing


Detailed Design Calculation of RCC Pier Open Foundation and Structural Detail CAD Drawing

RCC Well Foundation and Pile Foundation with Scour Depth, Foundation Depth etc.

Detailed Design Calculation of RCC Well Foundation and Structural Detail Drawing in CAD

Detailed Design Calculation of RCC Pile Foundation and Structural Detail Drawing in CAD

Details of Seismic Restrainers/Stoppers on Abutment / Pier

Details of Subsoil Exploration with processing of all related Soil Testing results and Graphical Plotting are available in section known as Geotechnics

Steel Truss (Warren & other types) Open Web Girder Bridge

Steel Truss (Warren & other types) Open Web Girder Bridge with Self Weight Computation, Superimposed Dead Load, Vehicle Live Load, Analysis for Member groups, Structural design of Top Chord, Bottom Chord, Vertical &, Diagonal members, Stringer Beam, Cross Girders, Top & Bottom Chord Bracings with Built up sections and production of complete volume of Text Report on Load Computation, Analysis for Truss & Beam Members and Structural Design.




Fabrication/Shop drawings with Details of Member Connections in editable CAD form

The Design of Steel Truss Highway / Railway Bridges In ASTRA Pro the design of Steel Truss Road / Railway Bridges are done in largest form compared to various works presently available. The Detail Calculation for Design of Lacings, Bolted / Riveted / Welded Connections with Gusset Plates, Detail Report for Load Computation, Structural Analysis, Structural Design and production of Complete set of Structural Steel Fabrication detail drawings in CAD



Bridge Design with ASTRA Pro

Bridge Design with ASTRA Pro for RCC, Composite, Pre stressed Concrete Bridge Superstructure for various structural components is done by receiving user input data relevant to the desired structure and Loading and obtaining Bending Moments, Shear Force etc from Structural Analysis for DL + SIDL loading + Moving Load by ASTRA Pro using Standard or User defined Vehicle in 1 or 2 or 3 or more lanes of moving load at user given increments


RCC T-Girder Bridge

Composite Bridge with RCC Deck Slab and Steel Plate or Box Girders is designed with detail step wise design calculation report and editable structural detail drawing
Detail step wise design calculation report and editable CAD drawings for Pre Stressed Post Tensioned Concrete Girder and Box Girder

Detail step wise design calculation report and editable CAD drawings for Pre Stressed Concrete Box Girder for Elevated Road Corridors and Metro Rails

The procedure starts with Analysis for DL, SIDL, Live Load (Multi lane vehicle moving load), then stepwise design considering temperature, creep shrinkage etc. for Flexure, Shear including Blister Blocks etc. and finally producing editable CAD drawings with relevant structural & construction details

Detail Stepwise Design Calculations are produced for Longitudinal and Transverse Analysis with over 100 Pages Report
A complete set of CAD Drawings are Supplied for necessary editing and printing

Pre Stress Concrete Girder and Box Girder Bridges


Pre Stressing Chart is available for the Engineers at Construction Site in easy to use Work Sheet form

Cable Profile is available for the Engineers at Construction Site in easy to use Work Sheet form

Composite Bridges with RCC Deck Slab and Steel Plate & Box Girders

Composite Road Bridge with Steel Plate Girder and RCC Deck Slab

Composite Road Bridge with Steel Box Girder and RCC Deck Slab

Bridge Deck Analysis by Grillage Technique

Bridge Deck Analysis by Grillage Technique with Moving Loads for Road and Railway vehicles following various Standards with I, 2, 3 and up to 10 lanes of Loading.


The Bridge Deck Analysis with any standard or user defined loading is effectively done as below:
ASTRA Pro has separates design suites for Bridges and Structures which receives users input from dialog box and produces step by step detail design calculation Report in a text file referring to design standards and also produces CAD drawing showing various dimensions and structural reinforcement detailing based on the structural design using user’s input data

RCC Girder Bridges for various Spans

Structural Detailing and ready to print CAD drawings are provided with the Detail Design Calculations

Detail informations for Construction are provided in the Drawings

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