News

1

Dec

2014

The purpose of this course is to present the theory and techniques of performance based design in simple physical terms that are very familiar to the practicing structural engineer. Attendees will leave the seminar empowered with a clear understanding of the theory and practical application this new technology.

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20

Nov

2014

Significant enhancements included in ETABS 2013 v13.2.0 and v13.2.1:
The Auto-Relabel All option that was available in ETABS v9 has been restored.
Russian material property and section property libraries have been added.
ASCE 41-13 guidelines for performance-based design have been implemented for frame hinge definitions, performance-point calculations, and the behavior and acceptance criteria for panel-zones and BRBs (buckling-restrained braces).
Masonry is now defined as a separate material rather than a type of concrete material.
Multiple named mass-source definitions can now be created and used for different load cases.
The Singapore National Annex has been added as an option to the Eurocode 8-2004 response spectrum function.
Notional load patterns can now be based on snow loads as well as other gravity loads.
User control is now provided for the handling of self-weight in the end offset portions of beam members.
The speed of analysis has been increased for most load cases.
The iteration strategy for nonlinear static and nonlinear direct-integration time-history load cases has been made more adaptive to typically improve convergence behavior and to reduce the time of analysis.
The line-search algorithm is now available for nonlinear static analysis.
Steel frame design for the Indian IS 800:2007 code now implements the changes in Amendment Number 1.
The display of design input parameters for steel frame design overwrites has been enhanced.
Canadian design codes (i.e., CSA A23.3-04 and CSA S16-09) now include snow loads in the default design combinations.
Multiple enhancements have been made for composite beam design affecting the control of the design process, the look and functionality of the interactive design form, the format and content of the output, and other improvements.
Shear wall design per the Indian IS 456:2000 code now allows separate control in the major and minor directions for enforcing the minimum eccentricity due to slenderness.
Several database tables have been added or have had their content expanded, including the listing of object unique names where applicable.
Table set definitions are now saved in the text model file.

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1

Oct

2014

The following Enhancements have been implemented for CSiBridge v17.1.0 and 17.1.1: The window refresh speed for Classical Plus graphics has been improved. The speed of analysis has been increased. Other minor enhancements.

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1

Oct

2014

The following Enhancements have been implemented for SAP2000 v17.1.0 and 17.1.1:
The window refresh speed for Classical Plus graphics has been improved.
The speed of analysis has been increased.
Steel frame design according to IS 800:2007 has been updated to include Amendment #1.
Other minor enhancements.

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30

Sep

2014

The purpose of this course is to present the theory and techniques of performance based design in simple physical terms that are very familiar to the practicing structural engineer. Attendees will leave the seminar empowered with a clear understanding of the theory and practical application this new technology.

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16

Sep

2014

As part of the Structural Engineers Association of California Annual Convention, nearly four hundred structural and earthquake engineering professionals gathered at one of Rancho Mirage’s most magnificent private estates for a once-in-a-lifetime dinner party experience.

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3

Sep

2014

The enormous increase in speed and memory capacity of inexpensive personal computers and the development of new numerical methods allow structural engineers to conduct earthquake response analysis of large and complex three-dimensional structures. Therefore, I am optimistic many structural engineers will realize linear and non-linear time-history dynamic analysis of structures is not difficult and performance based design is now a reality.

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6

Aug

2014

The following Enhancements have been implemented for SAP2000 v17.0.0:
The responsiveness of the user interface has been improved.
The DirectX graphics functionality has been enhanced.
Improved convergence behavior and increased speed for nonlinear static and direct-integration time-history analysis
Steel Detailing Neutral File (SDNF) version 3 file import is now supported.
Print preview is now available when printing images, design output, etc.
Other minor enhancements.

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6

Aug

2014

The following Enhancements have been implemented for CSiBridge 2015 v17.0.0:
The responsiveness of the user interface has been improved.
The DirectX graphics functionality has been enhanced.
A friction-spring hysteretic damper has been implemented as a new link property. The force-displacement relationship exhibits linear slipping stiffness when loading, but unloads with a smaller slipping stiffness. A pre-compression displacement and a displacement stop-limit may be specified.
A bilinear Maxwell damper has been implemented as a new link property. This device is a linear spring in series with a dashpot whose force-velocity relationship exhibits bilinear viscous behavior, typical of certain oil dampers having a relief valve.
Improved convergence behavior and increased speed for nonlinear static and direct-integration time-history analysis.
Increased speed of moving load analysis by parallelization.
Superstructure design checking has been extended to include composite bridge superstructures with steel U-girders according to the Canadian CAN/CSA-S6-06 code.
Superstructure design checking has been extended to include composite bridge superstructures with steel U-girders according to the Indian IRC-2011 code.
Superstructure design checking has been implemented for concrete superstructure sections according to the Russian SNiP 2.05.03-84 code. Superstructure types supported include prestressed concrete box girders and composite sections with precast I-girders and U-girders.
Superstructure design reports have been enhanced to include step-by-step detailed output, including equations and code references. These are currently available for AASHTO LRFD 2007 and 2012, for multi-cell concrete box shear and flexure checks and precast composite I-beam shear and flexure checks.
A traditional menu has been added as an alternative to the ribbon. Users can switch between the two options.
The ribbon style has been updated to be similar to current Microsoft applications.
Other minor enhancements.

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5

Aug

2014

The structural engineering profession has made vast and invaluable socio-economic contributions to humanity. Through the ages and across the globe, the intellect and talent of structural engineers has literally saved hundreds of millions of lives, preserved the past, and protected progress and prosperity for all of us today and for countless generations to come.

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