Integrated 3D Bridge Design Software - · PDF fileIn addition, AASHTO LRFD design is included with automated load combinations, superstructure design and the latest seismic design.

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Integrated 3D Bridge Design Software

Version: 16.0.2

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CSiBridge Overview

Modeling, analysis and design of bridge structures have been integrated into CSiBridge to

create the ultimate in computerized engineering tools. The ease with which all of these tasks

can be accomplished makes CSiBridge the most versatile and productive software program

available on the market today.

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Using CSiBridge, engineers can easily define complex bridge geometries, boundary

conditions and load cases. The bridge models are defined parametrically, using terms that

are familiar to bridge engineers such as layout lines, spans, bearings, abutments, bents,

hinges and post-tensioning. The software creates spine, shell or solid object models that

update automatically as the bridge definition parameters are changed.

CSiBridge design allows for quick and easy design and retrofitting of steel and concrete

bridges. The parametric modeler allows the user to build simple or complex bridge models

and to make changes efficiently while maintaining total control over the design process.

Lanes and vehicles can be defined quickly and include width effects. Simple and practical

Gantt charts are available to simulate modeling of construction sequences and scheduling.

CSiBridge includes an easy to follow wizard that outlines the steps necessary to create a

bridge model.

Completely integrated within the CSiBridge design package is the power of the SAPFire®

analysis engine, including staged construction, creep and shrinkage analysis, cable tensioning

to target forces, camber and shape finding, geometric nonlinearity (P-delta and large

displacements), material nonlinearity (superstructure, bearings, substructure and soil

supports), buckling and static and dynamic analysis. All of these apply to a single

comprehensive model. In addition, AASHTO LRFD design is included with automated load

combinations, superstructure design and the latest seismic design.

CSiBridge Features:

Features-CSiBridge User Interface

Graphical User Interface

• All operations are integrated across a single user interface that provides an easy-to-

use and intuitive workflow environment

o Modeling

o Analysis

o Design

o Output

o Optimization

o Scheduling

o Load Rating

o Reporting

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Features-CSiBridge Modeling

Templates

• Selection of templates for quickly starting a new bridge model or structure

• Default definitions of all properties, components, loading definitions, design settings,

and other defined items

• After a model has been generated using a template, the model can be modified in

CsiBridge

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BRIDGE WIZARD

A powerful tool that guides users along the model creation path.

• Step-by-step creation of complete bridge model

• Detailed guidance for each step

• Tree view of bridge model updated with each change

• Automatically update model by changing parameters

Parametric Deck Sections

• Vary geometric parameters to easily modify deck and girder arrangements.

• Concrete box girders

• Full parametric definition of cross sections

• Concrete tee beam sections

• Precast I and U girder sections

• Steel girders with composite deck

• Variable section definition parameters

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Layout Lines

• Flexible and powerful control over bridge geometry.

• Quick definition of highway layout

• Bearings and stations notation

• Horizontal and vertical curves

• Spiral transitions

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Lanes

• Rapidly specify lanes and the associated vehicles.

• Lanes based on layout lines or frames

• Width effects for lanes and vehicles

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Bridge Object Model

• A comprehensive assemblage of all components that make up the bridge model.

• Switch between spine, shell, and solid models with single click

• Parametric modeling of steel and concrete deck sections

• Concrete and steel diaphragms

• Restrainers and bearings

• Linear/nonlinear foundation springs

• Non-prismatic superstructure variation

• Skewed abutments, bents, and hinges

• Single-bearing & double-bearing bents

• Prestress tendon layout

• Superelevations

• Curved beams and girders

• Diaphragms and staggered cross-frames

• Width effects for lanes and vehicles

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Diaphragms

• Multiple diaphragm options to choose

• Solid diaphragm for concrete bridges

• Top and bottom chord with diagonal bracing for steel bridges

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Parametric Variations

• Specify a variation for all or parts of the bridge alignment and slope.

• Used for both horizontal and vertical variations of deck section

Section Properties

• Easy to define standard concrete shapes and rebar layouts

• Easy to define standard steel shapes

o I/Wide Flange

o Channel; Double Channels

o Tee

o Angle; Double Angle

o Pipe

o Tube

o Steel Joist

o Built up steel sections

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Section Designer

• Allows for quick creation of arbitrary section shapes.

• Arbitrary steel, concrete, or composite sections

• Caltrans sections

• Calculation of section properties

• Automated fiber layout for fiber hinges

• PMM interaction surfaces

• Moment-curvature relationship

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Abutments

• End skews can be definded

• End diaphragm property, if any

• Substructure assignment for the abutment, which can be none, an abutment

property, or a bent property.

• Vertical elevation and horizontal location of the substructure

• The bearing property, elevation and rotation angle

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Bents

• Superstructure assignments, including diaphragm property.

• Bent property and bent orientation

• Vertical elevation and horizontal location of the bent

• The bearing property, elevation and rotation angle

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Post Tensioning

• Refined options for laying out tendons and forces

• Quick tendon layout

• Tendons in frames, shells, and solids

• External tendons

• Secondary force calculation

• Creep, shrinkage, relaxation, anchorage slip and elastic shortening losses

• Explicit time-dependent effects in tendons

• Automatic location of tendons in girders

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Foundation Modeling

• Advanced modeling capabilities allow foundations to be included with the

superstructure.

• Pile or spread footings

• P-Y multi-linear force deformation assignments

• Compression only soil springs

• Grade beams as line springs

• Soil springs properties may be linear on nonlinear

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Auto Update of Bridge Structural Model

• Update linked model command creates the CSiBridge object-based model from the

parametric bridge definition

• Spine models, area object models and solid object models can be created when the

model is updated

• Auto Update Linked Bridge Objects command on the Bridge menu is a toggle that

allows the bridge model to be automatically updated by the program every time a

change is made.

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Features-CSiBridge Loading

Vehicles

• Auto transfer of vehicle loads to bridge structure

• Extensive vehicle library including AASHTO and other codes

• Fully customizable vehicles

Vehicle Classes

• Vehicle classes are sets of one or more vehicles that can be assigned to act on lanes

in a moving-load case.

• Only one vehicle in a class acts on the lane at a time. Results are reported for the

vehicle causing the most severe response

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Load Patterns

• Unlimited number of load cases and combinations

• Automated design combinations based on selected design code

• Strength and service combinations

• User-defined load combinations

• Linear add, envelope, absolute add, SRSS, and range combinations

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Load Combinations

• Automatic permutation of Wind directions and eccentricities

• CSiBridge will automatically generate wind loads based on various domestic and

international codes including but not limited to:

o UBC 94; 97

o BOCA 96

o ASCE 7-95; -02; -05

o NBCC 2005

o Mexican

o Chinese 2002

o IS875 1987

o User defined

• Open Structure Wind Loading

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Parametric Loading

• Superstructure loads may be defined and assigned to a bridge object model

parametrically.

• Bridge Object loads may be assigned for any defined load pattern type and may

include loads due to wearing surfaces, parapets, forms, diaphragms, girders, decks

and more.

• Once the parametric bridge object loads have been defined they may be easily

displayed and modified.

• Parametrically defined load assignments are preserved even when changes are made

to the bridge object discretizations, deck types or alignments.

Features-CSiBridge Analysis

Bridge Analysis Options

• Support for an exceptionally wide range of moving, static and dynamic load and

analysis types.

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• Moving loads with 3-D influence surfaces

• AASHTO, Chinese, or user-defined nonlinear temperature gradients

• Multi-step static and dynamic moving load analysis

• Response spectrum and time-history analysis

• Geometric and material nonlinearity

• Pushover analysis

• Buckling analysis

• Multi-support base excitation

• Parametric loading of superstructure

• Live load distribution by code or analysis

• True dynamic effects of moving live loads

• High frequency blast dynamics using Wilson FNA

Time History Analysis

• Modal frequency analysis using Ritz or Eigen vectors

• Linear Time History Analysis

• Nonlinear Time History Analysis with the Wilson FNA Method

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Response Spectrum Analysis

• Response-spectrum analysis is a statistical type of analysis for the determination of

the likely response of a structure to seismic loading.

• Response-spectrum analysis seeks the likely maximum response to these equations

rather than the full time history.

• The earthquake ground acceleration in each direction is given as a digitized response-

spectrum curve of pseudo-spectral acceleration response versus period of the

structure.

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Nonlinear Staged Construction

• Provides users with intuitive control over time effects.

• Segmental, composite, and other bridge types

• Gantt chart construction scheduler

• Creep, shrinkage, and strength change

• Camber calculation and shape finding

• Automatic cable tensioning

• Add/remove elements and loads, change section properties, change supports, modify

frame end releases

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Steady State Analysis

• Steady-state analysis is available to determine the response of the structure due to

cyclic (harmonic, sinusoidal) loading over a range of frequencies.

• Multiple loads may be applied at different phase angles.

• The structure may be damped or undamped.

• Frequency-dependent stiffness and damping (complex impedance) properties may

be included for modeling foundations and far-field effects, including radiation

damping.

• The response may be viewed at any phase angle. The effects of multiple machines

operating at different frequencies can be considered by combining the results of

several analyses in the same model.

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Pushover Analysis

• Force-Deformation relations for steel and concrete hinges

• Modal, muiform, or user defined lateral load patterns

• Capacity spectrum conversions

• Effective damping calculation

• Demand spectrum comparisons

• Performance point calculation

• Summary reports including plastic hinge deformations

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Shape Finding

• Allows modification of the undeformed geometry of the structure to achieve a

desired deformed shape.

• Original undeformed geometry of the structure (geometry when the structure was

first defined) is assumed to be the target for the deformed geometry of the structure

under a user-specified load case.

• Option to revise original joint coordinates by subtracting displacements obtained

from a specific case.

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Features-CSiBridge Design

Superstructure Design

• Composite Steel Girder (AASHTO LRFD 2007 and 2008 interims)‏

• Precast I and U Girder (AASHTO LRFD 2007, CSA-S6-06)‏

• Concrete Box Girder (AASHTO LRFD 2007, CSA-S6-06)‏

• Principal stress checks

• Automatic load combinations

• Design checks include:

o Stress checks

o Shear checks

o Flexure checks

o Principal stress checks

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• Optimization of steel girder design

Automated Seismic Design

• CSiBridge allows engineers to define specific seismic design parameters to be applied

to the bridge model during an automated cycle of analysis through design

• Completely integrated automated seismic design according to the new AASHTO

seismic design specification

• Pushover analysis for seismic category D

• Full report with the push of a button

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Features-CSiBridge Load Rating

Load Rating

• Advanced technology automatically determines complex bridge rating factors.

• Concrete box girder bridges (AASHTO LRFR 2005)‏

• Precast I and U girder bridges (AASHTO LRFR 2005)‏

• Composite Steel Girder (AASHTO LRFR 2005)

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Features-CSiBridge Output & Display

Deformed Geometry

• 3D perspective graphical displays

• Static deformed and mode shapes animation of deformed shapes

• Users can display deformed geometry based on any load, or combination of loads.

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Bridge Animations

• Animate vehicles and other results to help understand bridge behavior

• Create real time movie files showing time-history and moving vehicle responses

• Include multiple vehicles

• Displays may include displacements and stresses

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Report Generator

• Pre-formatted printed reports are now available at the push of a button. These

reports include all pertinent model data and the results of analysis and design.

• Data is presented in tabulated format, along with graphics, table of contents, and a

cover sheet displaying project information and your company name and logo.

• Reports can be created in RTF file format for Microsoft Word or in HTML format for

web presentations.

• Use the built-in template, or create your own template as a company standard or

specialized for a particular project.

Moment, Shear and Axial Force Diagrams

• Force diagrams and stress contours

• Vertical loads, shears and overturning moments

• Selective results displayed on-screen with right-button click

• Tabular display of model input and output

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Bridge Response

• The moving load case results saved parameters allow explicit specification of the

analysis results for a moving load load case.

• Bridge Responses command can be used to select the response quantities to be

saved

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Influence Surfaces

• Effective visualization options for interpreting bridge response.

• 3D Influence surface plots for joints, frames shells and links

• Influence line or surface plots for joint displacement or reactions

• Plots as contours

• Plots along lane center or lane widths

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Features-CSiBridge Import & Export Formats

Import and Export Formats

• LandXML

• Export model to MS Access database

• Cut & paste portions of model to Excel spreadsheet for editing

• Import/Export model in CIS/2 STEP file format

• PERFORM-3D

• Import/Export data using IFC standards

• Import files in the following program formats:

o DXF/DWG

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CSiBridge System Requirements

Processor:

• Minimum: Intel Pentium 4 or AMD Athlon 64

• Recommended: Intel Core 2 Duo, AMD Athlon 64 X2, or better

• A CPU that has SSE2 support is required

• The SAPFire® Analytical Engine includes a multi-threaded solver that can take

advantage of multi-core CPUs

Operating System:

• Microsoft® Windows XP with Service Pack 2 or later, Microsoft® Windows Vista, or

Microsoft® Windows 7, 32- and 64-bit versions

• With a 64 bit operating system, the SAPFire® Analytical Engine can utilize more than

4 GB of RAM, making it possible to more efficiently solve larger problems

Memory:

• Minimum: 2 GB for XP O/S, 4 GB for Vista/Windows 7 O/S

• Recommended: 4 GB for 32-bit O/S, 8 GB or more for 64-bit O/S

• The problem size that can be solved & the solution speed increases considerably with

more RAM

• Vista/Windows 7 requires more RAM than XP for the operating system itself

Disk Space:

• 6 GB to install the program.

• Recommended: 500GB or larger Hard Disk Drive (7200 rpm SATA)

• Additional space required for running and storing model files and analysis results,

dependent upon the size of the models

Video Card:

• Minimum: Supporting 1024 by 768 resolution and 16 bits colors for standard (GDI+)

graphics mode

• Recommended: Discrete video card with NVIDIA GPU or equivalent and dedicated

graphics RAM (512 Mb or larger) for DirectX graphics mode. The card must be DirectX

9.0c compatible (DirectX SDK Aug 2009 - Build 9.27.1734.0).

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• DirectX graphics mode fully utilizes the hardware acceleration provided by a GPU and

dedicated graphics RAM.

• For better graphics quality in terms of anti-aliasing and line thickness, the device

raster drawing capabilities should support legacy depth bias.

CSiBridge Compare Levels

Parametric Bridge Modeling Plus Plus w/

Rating Advanced Advanced w/

Rating

Bridge template modeling for:

Straight or curved bridges

Steel Girder Bridges

Concrete box girder bridges

Cable stayed bridges

Layout line definitions:

Using bearings and stations

Using landXML data files

Deck section templates:

Steel girder

Concrete box girder

Precast I and U girders

T girders

Super-elevations and skews

Spans

Abutments

Bents

Hinges

Bearings

Nonlinear bearings

Cross sectional variations along length

Lane definitions

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Post-tensioning:

Quick and easy tendon layout

Additional Drafting and Modeling Plus Plus w/

Rating Advanced Advanced w/

Rating

3D line and area objects

3D solid objects

Database of all standard hot rolled steel,

aluminum, & cold formed sections

Section designer for specialized sections

Interactive database spreadsheet editing

Analytical Modeling Features Plus Plus w/

Rating Advanced Advanced w/

Rating

Meshing tools

Automatic mesh generator

Automatic edge constraint technology

for mismatched meshes

2D and 3D frame element

Tendon element

Cable element

Catenary cable behavior

Shell element

Coupled spring element

Plane-stress, plane-strain and solid of

revolution

(Asolid) elements

Linear link element with stiffness and

damping

Automated panel zone element

Nonlinear link elements: gaps, hooks

Nonlinear link elements: plasticity,

dampers, isolators

Frame tension/compression-only

behavior

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Nonlinear frame hinge element

Nonlinear layered shell element

Loading Features Plus Plus w/

Rating Advanced Advanced w/

Rating

Parametric loading capabilities tied to

bridge geometry

Moving loads on lanes independent of

shells and solid elementst

AASHTO and international vehicle load

definitions

General vehicle and train load definitions

Point, line, trapezoidal, and area loads

Tributary area load distribution to frames

Automatic code-based wind loading

Pattern loading

Open structure wind loading

Automatic code-based seismic loading

Applied displacement loading

Gravity, pressure and thermal loading

Strain loads, deformation loads, target

force

Prestress loads

Analysis Features Plus Plus w/

Rating Advanced Advanced w/

Rating

Fast advanced solver technology with

SAPFireTM analysis engine

Multiple 64-bit solvers for analysis

optimization

Generalized joint constraints including:

diaphragms,

plates, rods & beams

Eigen analysis with auto-shifting for ill-

conditioned problems

Ritz analysis for fast predominant mode

evaluation

with missing mass

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Multiple response spectrum cases in

single run

Modal combination by the CQC, SRSS,

GMC or double

sum methods

Direction combinations by the ABS,

SRSS, or CQC3 methods

Linear dynamic modal time history

analysis

Frequency domain analysis

Power spectral density analysis

Linear buckling analysis

Nonlinear buckling analysis

Nonlinear analysis

Tension/Compression-only frame

elements

P-delta analysis - both small and large P-

delta

Static pushover analysis

Wilson FNA (Fast Nonlinear Analysis)

method

Direct integration time history

Line and surface multi-linear springs (P-

y curves)

Material nonlinearity - frame hinges and

links

Geometric nonlinearity - large

displacement

Creep and shrinkage

Staged construction

Gantt chart scheduler

Target final geometry iterations

Static & dynamic load combos - linear,

envelope,

absolute, SRSS, range

Design Features Plus Plus w/

Rating Advanced Advanced w/

Rating

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Rating Rating

Bridge superstructure design:

Composite steel girder (AASHTO

LRFD 2007 with

2008 interims)

Precast I and U girder (AASHTO

LRFD 2007, CSA-S6-06)

Concrete box girder (AASHTO

LRFD 2007, CSA-S6-06)

Automated seismic design:

Category A, B, C

Category D

Bridge Rating Capabilities Plus Plus w/

Rating Advanced Advanced w/

Rating

Concrete box girder bridges (AASHTO

LRFR 2005)

Precast I and U girder bridges (AASHTO

LRFR 2005)

Steel I-Section with Concrete Slab

(AASHTO MBE 2008/2010)

Output and Display Features Plus Plus w/

Rating Advanced Advanced w/

Rating

Deformed and undeformed geometry in

3D

Loading diagrams

Moment, shear and axial force diagrams

Stress contours for area and solid objects

Resultant forces displayed along section

cuts

Detailed results with right button click

Virtual work plots

Time history displays of function vs.

time

3D Influence surfaces

Force vs. deformation plots

Response spectrum curves from time

history response

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history response

Video of animations and time varying

results displays

Capture of graphics to .emf, .jpg, .bmp,

.tif

Customized report generation

CSiBridge Watch and Learn

Title Length Click to Play

CSiBridge - 01 Introductory Tutorial

http://www.youtube.com/watch?v=ISIzOOh39tQ

34 min

CSiBridge - 02 Navigating the Interface

http://www.youtube.com/watch?v=-Tgut69Jq4U

7 min

CSiBridge - 03 Design of Steel Girder Bridges

http://www.youtube.com/watch?v=owYq9ih0APE

18 min

CSiBridge - 04 Design of Precast Concrete Composite

Girder Bridges

http://www.youtube.com/watch?v=sCtcfZ7dsMo

26 min

CSiBridge - 05 Design of Prestressed Concrete Box

Girders

http://www.youtube.com/watch?v=uJN5i8I7gqk

12 min

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CSiBridge - 06 Automated Seismic Design

http://www.youtube.com/watch?v=ULzh61FM4a4

29 min

CSiBridge - 07 Staged Analysis

http://www.youtube.com/watch?v=71OszHhJ3h4

39 min

CSiBridge - 08 Dynamic Vehicle Loading

http://www.youtube.com/watch?v=h-9vz4uyf_Q

7 min

CSiBridge - 09 CSiLoadOptimizer

http://www.youtube.com/watch?v=rx_hWP_PXPc

13 min

CSiBridge - 10 Load Rating Factors

http://www.youtube.com/watch?v=akwBiLw9izg

15 min

Disclaimer: In an effort to highlight certain key capabilities, artistic license may have been

taken during the making of these videos. Some input may have been skipped for the sake of

brevity, resulting in movies that do not portray all of the steps necessary to create a

complete analysis or design. Users should consult the associated program documentation to

make sure that they understand all input and modeling assumptions.

Note: If you would like to download the Watch and Learn videos for offline viewing, please

click here.

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NEWS-CSiBridge 2014 Enhancements

CSiBridge 2014 V16.0.1 and V16.0.2 Enhancements

Significant enhancements include:

• Multiple grid systems can be displayed at the same time

• Multiple mass sources can be defined for modeling alternative dynamic behavior

• Display of frame design D/C ratios can be limited by a specified threshold value

• Shear stress, von Mises stress, and principal stress response is now available for

certain frame sections

• Shell stresses can now be displayed normalized by material strength

• Bearing pressure on shells from area springs can now be displayed

• Bridge seismic design report can now be automatically generated by the program or

by using a user-defined XML contents file

• Import and export of files using the IFC 4 format is now supported

CSiBridge V16.0.0 Enhancements

Significant enhancements included in CSiBridge 2014 v16.0.0 , besides bug fixes:

• The memory capacity of the graphical user interface has been increased to handle

larger models.

• A new link property has been added to model triple pendulum isolators (bearings).

• A new frame section property type has been added to model hybrid built-up steel U-

girders.

• Tendons can now be used to model straight external tendons.

• New built-in materials have been added for ASTM A709 (steel) and ASTM A772

(tendon).

• The precast I-girder deck section now permits the use of nonprismatic girders and

staggered diaphragms.

• A new bridge section type has been added to represent composite steel U-girder

superstructure sections.

• Superstructure design has been added for the AASHTO LRFD Bridge Design

Specifications, 6th Edition, 2012.

• Steel superstructure design has been added for Eurocode EN 1994-2.

• Steel superstructure design has been added for the Canadian CAN/CSA- S6-06 code.

• Concrete superstructure design has been added for the India Roads Congress

IRC:112-2011 code.

• U-section steel-girder composite bridge superstructure design has been added for

AASHTO LRFD 2007 and 2012.

• Automated bridge seismic design is now available for steel columns.

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• Automated bridge seismic design is now available for bridges crossing fault-rupture

zones according to Caltrans Memo to Designers 20-8.

• Automated bridge seismic design has been updated to AASHTO Guide Specifications

for LRFD Seismic Bridge Design, 2nd Edition, 2011.

• Bridge load rating has been added for AASHTO The Manual for Bridge Evaluation, 2nd

Edition, 2011.

• Load combinations have been added for bridge design according to the Indian IRC:6-

2010 code.

• Response spectrum functions have been added for the AASHTO 2012 code.

• Automated lateral loading has been added for the IBC 2012 code.

• Automated lateral loading has been added for the Italian NTC 2008 code.

• Automated lateral loading has been added for Turkish TSC 2007 and TS 498-97 codes.

• Steel frame design has been added for AISC 360-10 and AISC 341-10 codes.

• Concrete frame design has been added for the ACI 318-11 code.

• Other minor enhancements.