Extreme Loading® for Structures (ELS) software offers a new advanced level of nonlinear dynamic structural analysis, which allows users to efficiently study structural failure and retrofitting strategies in historic masonry structures from any number of possible extreme loading events including earthquake, blast, and progressive collapse.
Extreme Loading for Structures Software (ELS) offers a new advanced level of nonlinear dynamic structural analysis, which allows users efficiently to study structural failure from any number of actual or possible extreme events. Unlike traditional FEM software, users can easily model high-rise structures composed of reinforced concrete, steel composite and other structures with all as-built and as-damaged details.
Extreme Loading® for Structures Software or ELS, is an advanced non-linear structural analysis software tool designed specifically for structural engineers. ELS allows structural engineers to study the 3D behavior of structures through both the continuum and discrete stages of loading. This includes static and dynamic loads such as those generated by a blast, seismic events, impact, progressive collapse, and the wind. Unlike many structural analysis software tools which are based on the Finite Element Method (FEM), ELS utilizes a non-linear solver based on the Applied Element Method (AEM).
This allows ELS is to automatically analyze structural behavior during elastic and inelastic modes including the automatic yielding of reinforcement, detection, and generation of plastic hinges, buckling & post-buckling, crack propagation, membrane action & P-Delta effect, and separation of elements. The resulting debris and impacts with structural elements are also automatically analyzed and stress redistribution is inherently calculated.
What’s New with Extreme Loading for Structures:
Abstract: Progressive collapse is defined as either partial or overall failure of the structure due to losing one of the main structural elements. In order to control this chain reaction, it is important to study the main structural elements behavior under column...
Explosions bring a serious risk of damage or collapse when are produced inside buildings or in the close proximity. As the hazard intensity and possible effects are difficult to quantify, the structure should have the capacity to survive with inherent damages, thus preventing the progressive or disproportionate collapse.
The evaluation of the seismic vulnerability of historical masonry buildings is a difficult task due to the uncertainty regarding structural characteristics and construction techniques, mechanical properties, and pre-existing damage. Hence, there is a need for an efficient computational technique for analyzing such structures and providing reliable results for a large number of buildings within a reasonable time frame.
Model Progressive Collapse In Ten Minutes or Less:
In this short video, we take you through the process of creating a small reinforced concrete structure to illustrate how quickly you can model and analyze a detailed reinforced concrete structure for progressive collapse in Extreme Loading® for Structures Software (ELS).
ELS provides an economic nonlinear dynamic structural analysis solution for use in performance based design allowing users to efficiently model and analyze structures.
Model reinforcement, steel sections, and prestressing details commonly assumed or neglected to be fully integrated into the model with ease, providing significant improvements to the model and its results.
Applied loads are virtually unlimited and may be sequenced in a multi-hazard approach with staged loading to simulate repeated or a chain of events, including earthquakes, fire, blast, impact, tsunami, high wind, and progressive collapse.
Accelerate the research performed on shake tables with full scale virtual that can predict local and global failure, opening the door to substantial design improvements, and moving shake tables to validation, post optimization.
The modeler included with Extreme Loading® for Structures (ELS) provides engineers with a comprehensive and intuitive style-based modeling interface that allows users to quickly and easily create 3-D solid element structural models for nonlinear static or dynamic analysis structures.
The Applied Element Method (AEM) based solver in Extreme Loading® for Structures is a derivative of the Finite Element Method (FEM) and the Discrete Element Method (DEM). AEM is capable of performing both linear and nonlinear, static or dynamic analysis that follows the behavior of structures through separation, collision, and collapse.
The frame by frame Extreme Loading for Structures Results Viewer allows the user to view and perform a number of post-processing tasks in order to analyze results and export presentation materials.
Applications for Extreme Loading for Structures
Never before, have structural engineers had a structural analysis software tool that is capable of fully analyzing structures under extreme loads.
Ahmed Khalil, P.E, Ph.D from ASI and Tarek Kewaisy, P.E., Ph.D. from Louis Berger will be co-presenting a paper titled “Advanced Modeling of Blast Response of Reinforced Concrete Slabs with and without FRP Retrofit” on March 26 2018 at ACI Concrete...
Watch Dr. Ahmed Amir Khalil's presentation on the use of ASI's Demolition Simulation Technology to save lives during Urban Search and Rescue Operations at the 2017 World Demolition Summit in Florida. Bio: Dr. Khalil is a Structural Consultant at Applied...
Visit ASI Engineers as they present on the proposal of a new methodology to design against disproportionate collapse for critical buildings that must be operational after a terrorist attack. The disproportionate collapse analysis uses the alternate path method where...
Visit ASI Engineers as they present on Alternative Load Path Analysis (ALPA), which is becoming the most common technique for performance based design of structures to resist disproportionate collapse. This has coincided with an increased ability of high fidelity...
Structures Congress 2017: Ship Impact & Nonlinear Dynamic Collapse Analysis of a Single Well Observation Platform
Visit ASI Engineers as they present on the three-dimensional nonlinear dynamic analysis they performed on a single well observation platform. The structure consists of a single level service deck supported by three driven piles and a bracing frame. Extreme Loading®...
This paper was presented at the 16th World Conference on Earthquake Engineering (16WCEE) in Santiago, Chile, January 9th-13th, 2017. The paper is a result of research into the use of Extreme Loading for Structures in seismic assessment and retrofitting historic...
Are you attending the World Conference on Earthquake Engineering (16WCEE) in Chile January 9th-13th, 2017. Learn more about how you can use Extreme Loading for Structures for the performance based design of structures against seismic, blast, high wind, impact, and...
In this video from 2013's World Demolition Summit, Dr Ahmed Amir Khalil, Vice-President for International Development at Applied Science International, LLC., describes how new 3D modelling technology can be used to accurately calculate and understand how a...