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LUSAS Video Presentation Sessions

The duration of video / presentation sessions on this page is stated in minutes and seconds after the title. Note that whilst metric or imperial sets of units may be used in these presentations according to the region for which they were initially intended, analysis with any consistent set of units is generally permitted in LUSAS.

Video controls and a full screen option are provided at the bottom of each video during playback.

See also:

LUSAS Papers and Presentations

LUSAS Webinar recordings

LUSAS Version 16 videos


LUSAS Version 16 Update Presentation (13:48)

  • Version 16 heralds a new era for LUSAS with the addition of comprehensive design checking tools for steelwork, and a host of other new features and enhancements that improve general usability and make collaboration between design teams easier. Watch this short introductory presentation video to find out more. (Version 16.0)

  • Visit the LUSAS version 16 microsite to find out more about this release.


LUSAS Version 15 videos


Cut and cover tunnel modelling (8:41)

  • Import of a DXF file to create a 2D slice model of a simple cut and cover tunnel model. Material properties, supports and loading are assigned, prior to showing how activation and deactivation of elements can be done to model the staged construction process of excavating the soil, installing ground anchors and constructing tunnel structure. A linear and a nonlinear analysis is performed to evaluate using different soil properties. (Version 15.2)


Building a footbridge model for linear analysis (9:08)

  • Model building using point and line features, creation and assignment of geometric and material properties, meshing, gravity loading and supports. (Version 15.2)


Progressing the footbridge model for linear dynamics (6:23)

  • Setting of eigenvalue controls and adding non-structural mass to allow for decking and parapets etc that are not explicitly modelled. (Version 15.2)


Pedestrian footbridge loading assessment to Eurocode using UK National Annex (13:35)

  • Damping parameters, setting of transient time-step controls, graphing of peak accelerations to compare to Eurocode recommendations. (Version 15.2)


Shell and beam modelling of a post-tensioned bridge (12:55)

  • Covers the building of a simple model of a 3-span slab bridge with twin deep ribs, using shell and beam elements and constraint equations to tie the surfaces and beams together to ensure composite action. Tendon profiles are defined and assigned to the model, requiring specification of tendon properties, prestress force and jacking details, and selection of the lines of the model to which they apply. The deformed shape from self-weight and prestress loading is viewed for each in isolation, prior to looking at the effects of both in a load combination. (Version 15.1)


Staged construction modelling of a dam (20:08)

  • Illustrates the procedures involved in preparing a dam model (that has been imported from an IGES file) for an initial linear static structural analysis - as required prior to developing the model further. The assignment of a volume mesh to the model, and the applying of structural material, supports, and gravity loading only is covered. Activation and deactivation of elements is used to represent the staged construction process of pouring individual lifts of concrete. After being solved the stresses in each lift are investigated. A time-history response graph for a selected location is produced to show stress changing with each loadcase. An animation of the construction stages is produced. A separate model is used to show heat of hydration modelling involving the use of thermal material properties with corresponding thermal temperatures and stresses arising from the analysis being visualised. (Version 15.1) 


Modelling and results / reporting overview for a 3-span box structure (18:15)

  • An initial import of a DXF and an IGES file showing automatic meshing and rendering facilities is followed by line beam modelling of a 3-span box beam structure. The assignment of user-defined section properties is shown for standard, linear and tapered box sections, and a method for finding model geometry without material assigned is highlighted. Results are viewed for bending moments and stresses both on the fleshed model and in a tabular results format. A report is created showing user-defined outputs and how saved views of the model and results are automatically updated each time a report is created. (Version 15.1)


Interactive modal dynamics and rail track-structure interaction analysis (14:04)

  • Overview of the features and capabilities of the LUSAS Interactive Modal Dynamics software option (IMDPlus) with specific reference to rail use, and of the LUSAS Rail Track Analysis software option, which permits track/structure interaction analysis to the International Union of Railways Code UIC 774-3 and to the relevant sections in Eurocode 1. (Version 15.1)


Saved views, results extraction and report generation (8:50)

  • A simple integral bridge model is used to show the creation and use of Saved Views, graphing of results data, the setting of threshold values for results listings, one-click member reporting, and auto-updating of the saved views and one-click member reports for a revised model. (Version 15.1)


Construction table reporting (5:31)

  • Use of the LUSAS construction table facility on a box cantilever model to report tables of displacement data for a staged construction analysis. Tables shown include a camber table - as used to set-out a structure towards a target (as-built) profile; a displacement history table, which reports the absolute displacement of a series of key-points at each stage with reference to an undeformed geometry 'datum'; and an incremental displacement table, which reports the stage-by-stage deformation of a structure and tabulates the relative displacements between each stage. (Version 15.1)


Defining rigid zones (9:32)

  • A cross-section of a buried box culvert is modelled using 2d line beams to illustrate the use of rigid zones. These are defined and used correctly model regions of a structure that are to be considered as entirely rigid for analytical purposes. A typical use would be to model beam and column connections in building frame analysis. (Version 15.1)


Easy-to-use lift-off supports and RC slab design to AASHTO (7:36)

  • A simple bridge model is used to show the use of the multiple analysis facility, the use of lift-off supports, and slab design showing bar reinforcement details to AASHTO. (Version 15.0)


Direct method influence analysis and Traffic Load Optimisation for beams to AASHTO (5:51)

  • A review of  the techniques available in LUSAS for carrying out influence analysis and the use of the new Direct Method, combined with the traffic load optimisation tool to create AASHTO traffic loads on a line beam model of an arch bridge. (Version 15.0)


Easy-to-use lift-off supports and RC slab design to Eurocode (9:32)

  • A simple bridge model is used to show the use of the multiple analysis facility, the use of lift-off supports, and slab design showing bar reinforcement details and crack checking based on EuroCode 1991-2. (Version 15.0)


Direct method influence analysis and Traffic Load Optimisation for beams to Eurocode (7:37)

  • A review of  the techniques available in LUSAS for carrying out influence analysis and the use of the new Direct Method, combined with the traffic load optimisation tool to create Eurocode traffic loads on a line beam model of an arch bridge. (Version 15.0)


Cable tuning analysis for linear structures (8:15)

  • For many structures it is vital control the deflected shape during construction or under imposed loading. Here, the  cable tuning analysis facility is used to calculate cable forces in a cable stayed footbridge to meet a user-defined pre-cambered profile, as well as limiting the main tower displacement and bending moment to acceptable values. (Version 15.0)


Modelling of active/passive soil behaviour with multi-linear joint material (5:53)

  • Shows a soil-structure interaction (SSI) problem where structural-element and ground displacements are dependent upon one another. An Active / Passive soil joint is set up for an embedded retaining wall to cater for lateral pressures increasing with depth, and the joints are also pre-loaded with an at-rest pressure at the beginning of the analysis. A parametric investigation of soil properties and the effects on bending moments in the wall is also done. (Version 15.0)


LUSAS Version 14 videos

Please note that whilst these older videos show general functionailty and capabilities, suggested methods of model creation, analysis capabilities and results processing techniques, may differ in the latest software release from those shown.


Simple staged construction of a cable staged bridge (3:43)

  • Short presentation to show how parts of the bridge structure can be activated to replicate the stage construction process. (Version 14.x)


Straight girder buckling (19:22)

  • A model of a pair of braced 'I' girders representing a footbridge is built from scratch showing the associative modelling, meshing, loading and support features of LUSAS. A linear static analysis is carried out followed by an eigenvalue analysis to ascertain the critical mode shape in order to calculate the critical buckling load. (Version 14.x)


3-span bridge deck - simple modelling (13:02)

  • A 3-span skewed bridge is built showing the associative modelling features of LUSAS, and then loaded with self-weight and an AASHTO LRFD truck loadcase.(Version 14.x)


3-span bridge deck - basic results processing (9:09)

  • Deformed shapes for each loadcase are viewed and contour plots investigated. Results are graphed using longitudinal slicing along the model; smart load combinations are defined and printed, and detailed results are listed. (Version 14.x)


Introduction to the LUSAS V14 User Interface (5:43)
  • General overview of using the LUSAS user interface for Version 14.0

Simple building frame modelling and results viewing (16:20)
  • Creation of a 3D steel frame building with concrete floor panels. Shows general beam and shell modelling, selection and orientation of steel sections, defining eccentricities and plotting of results in both contour and diagram formats on all and selected parts of the structure. (Version 14.0)

Boolean geometry modelling (6:13)

  • Creation of a quarter model of a metal component using boolean union, subtraction and intersection methods before meshing, solving and viewing results on a slice through the model. (Version 14.0)

See also:

LUSAS Papers and Presentations

LUSAS Webinar recordings


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Any modelling and analysis capabilities described on this page are dependent upon the LUSAS software product and version in use.