CSiBridge V15 Enhancements
Please contact sales@csiberkeley.com or (510) 649-2201 for more information.
Significant New Features
Bridge Wizard
- 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
Bridge Object 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
- Superelevation
- Curved beams and girders
- Diaphragms and staggered cross-frames
Bridge Modeling Options
- Abutments may be modeled as bents
- Bearing properties and location may be user defined
- Kinematic effects due to abutment and bearing geometries are included
- Bridges may be analyzed as full 3D-shell or spine models
Layout Lines
- Quick definition of highway layout
- Bearings and stations notation
- Horizontal and vertical curves
- Spiral transitions
Section Designer
- Arbitrary steel, concrete, or composite sections
- Caltrans sections
- Calculation of section properties
- Automated fiber layout for fiber hinges
- PMM interaction surfaces
- Moment-curvature relationships
Parametric Deck Sections
- 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
Lanes and Vehicles
- Lanes based on layout lines or frames
- Width effects for lanes and vehicles
- Auto transfer of vehicle loads to bridge structure
- Extensive vehicle library including AASHTO and other codes
- Custom vehicles
Post-tensioned Box Girders
- Quick tendon layout
- Tendons in frames, shells, and solids
- External tendons
- Secondary force calculation
- Creep, shrinkage, relaxation, anchorage slip, elastic shortening losses
- Explicit time-dependent effects in tendons
- Automatic location of tendons in girders
Foundation Modeling
- Pile or spread footings
- P-Y multi-liner force deformation assignments
- Compression only soil springs
- Grade beams as line springs
- Soil springs properties may be linear on nonlinear
Loading and Analysis
- 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
- Response spectrum and time-history analysis
- 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
Bridge Analysis Options
- Speed and power of the SAPFire engine
- Large Capacity Eigen and Ritz model analysis
- 3D Pushover Analysis
- Multi Support Excitation Dynamics
- Energy Dissipation Designs
- Buckling Analysis
- Staged Construction
- Linear and Nonlinear Dynamic Analysis
Staged Construction
- 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
Cable Stayed Bridges
- Automatic cable shape finder
- P-Delta plus large displacement geometric nonlinearity
- Cable target force determination
- Full 3D gravity, wind and seismic analysis capabilities
- Multiple point excitation for time-history analysis
- Large deformation catenary cable analysis
- Automatic jacking and cable-tensioning control
- Shape-finding for camber calculation
Influence Surfaces
- 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
Bridge Design
- Bridge Superstructure Design:
- Composite Steel Girder (AASHTO LRFD 2007 and 2008 interims)
- Precast I and U Girder (AASHTO LRFD 2007)
- Concrete Box Girder (AASHTO LRFD 2007)
- Principal stress checks
- Automatic load combinations
- Design checks include:
- Stress checks
- Shear checks
- Flexure checks
- Principal stress checks
Results and Output
- Animated displacement and stress plots
- Graphical results on screen
- Tabular output to Microsoft Excel
- Analysis and Design report in Microsoft Word format
Bridge Rating
- Concrete box girder bridges (AASHTO LRFR 2005)
- Precast I and U girder bridges (AASHTO LRFR 2005)
Bridge Animations
- Create real time movie files showing time-history and moving vehicle responses
- Include multiple vehicles
- Displays may include displacements and stresses
Step-by-step seismic design of bridges per AASHTO Seismic Design Guide
CSiBridge V15.1.0 Enhancements
Significant New Features
- Built-in European concrete and steel material properties.
- Display and output of frame stresses.
- Load optimization feature to determine the optimal loading scale factors to achieve goals and limits on displacement and force response throughout the structure.
- Canadian NBCC 2010 loading for wind, seismic, and response-spectrum.
- American ASCE-7 loading for wind, seismic, and response-spectrum.
- Italian NTC 2008 response-spectrum functions with geographic database.
- Specialized bridge groups may now be specified within each bridge object. Each bridge group applies to a particular type of component (slab, girder, bearing, etc.) and an individual bridge object. Depending on the bridge group type, groups may be defined for multiple items, multiple longitudinal ranges, and/or multiple transverse ranges.
- The specification of rebar for the bridge object superstructure has been enhanced. Distances are now measured along each individual girder. Longitudinal rebar is located relative to the center of the supports or the centers of the girder spans, and shear rebar is located relative to the ends of each girder span.
- A new design request type has been added for steel I-girder composite bridge superstructures to account for the constructability check according to the "AASHTO LRFD 2007" code, including the 2008 interim provisions. Composite and non-composite behavior can both be considered, with or without using staged-construction analysis.
- Bridge load rating has been added for steel I-girder composite bridge superstructures according to the AASHTO "Manual for Bridge Evaluation", First Edition, 2008. Separate rating requests are provided for the service and strength checks of both composite and non-composite superstructures. Live-load distribution factors can be automatically calculated using code formulae, specified by the user, or determined from a detailed 3-D live-load analysis.
- For flexural-strength superstructure design checks by the AASHTO LRFD 2007 code, the effect of user-specified reinforcement is now included for the prestressed box-girder and precast-girder composite sections. Previously only the effect of the concrete and tendons were included in these checks. The effect of reinforcement for the slab of steel-girder composite sections was already being considered.
- Design checking has been implemented for concrete superstructure sections according to the Canadian "CAN/CSA-S6-06" code. Superstructure types supported include prestressed concrete box girders and composite sections with precast I-girders and U-girders. Separate design checks are provided for stress, flexural strength, and shear strength using MCFT (modified compression field theory). The effect of mild reinforcing is included as well as the prestress tendons. Live-load distribution factors can be automatically calculated using code formulae, specified by the user, or determined from detailed 3-D live-load analysis.
- Automated load combinations and design load types have been added as required for bridge design according to the Canadian code CSA-S6-06.
- Canadian steel frame building design code CSA S16-2009.
- Other minor enhancements.
Significant new features:
- User-defined stress points may now be specified for Section Designer frame sections.
- Plotting of bridge superstructure results now includes an option to show the hyperstatic (or secondary) forces and moments acting on the superstructure cross-section for load cases and combos representing prestressing load.
- The OAPI (Open Application Programming Interface) has been changed so that multiple instances of CSiBridge can now be started from an external program or script.
- New functionality has been added to the Open API (Open Application Programing Interface) for the design codes.
Source: http://www.csiberkeley.com
