Use LUSAS Tank to automatically create a range of above ground full containment concrete or double-walled steel circular tanks from user-defined common tank definition data. Slightly elevated tanks mounted on bearings, pedestals or piles, are also catered for.

Carry out a range of analyses and optional design checks for specified load combinations.

LUSAS Tank now supports:

• Vertical prestress with tapered walls is now fully supported for 3D shell models. A dummy vertical prestress tendon arrangement is used initially. Tendon details are subsequently updated with user-defined data.
• Steel roof-only models. Library sections and steel frame design attributes are also added for roofs in metallic tanks. An orthogonal arrangement of beams is now supported for the central region of a steel roof
• Setting up Eigenvalue buckling and GNL buckling analyses is now automated for 3D shell and other models.
• LUSAS Tank help information is now available from within Modeller help.

Vertical prestress loading visualised on a 3D shell half-model

Steel roof-only half-model

Developments since its initial release include:

• Double walled steel tanks.
• Solid models of concrete tanks with buttresses. These are coupled structural – thermal, full, half or quarter sized models, with explicitly modelled wall reinforcement, ringbeam reinforcement and spillage scenarios.
• Modelling of elevated tanks including isolator, pedestals, with raft and optionally piles
• Automatic creation of piled foundations for above ground tanks
• Spillage (thermal) analysis 
• Wind loading to ASCE (USA) and GB50010 (China) codes
• RC design to GB50009 (China)
• Comprehensive design check reports in spreadsheets.
• A range of pre-processing improvements. 

LUSAS Tank Analysis and Design Software is available in a choice of software products with additional software options available for purchase to meet your particular needs:

• LUSAS Tank 'Roof' - for modelling, analysis and design of circular metallic containment tank roofs.
• LUSAS Tank 'Concrete' - for modelling, analysis and design of circular concrete containment tanks and roofs.
• LUSAS Tank 'Metallic' - for modelling, analysis and design of double-walled circular metallic containment tanks and roofs.

Modelling, design and analysis capabilities described for LUSAS Tank are dependent upon the version and options in use.

Easily create 2D and 3D tank models from common tank definition data. Carry out preliminary studies using any of the 2D tank modelling options that are available, before moving on developing and investigating the suitability of designs in more detail using 3D shell or 3D solid models.

For preliminary analysis:

• 2D axisymmetric structural
• 2D axisymmetric staged construction
• 2D axisymmetric coupled thermal/structural
• 2D beam-stick seismic

For detailed analysis:

• 3D shell structural
• Steel roof-only
• 3D solid coupled/thermal structural

Use 3D shell models for design checks. Use 3D solid models for a more representative spillage analysis.

Undertake comparative studies by copying tank definitions and re-creating models from revised data.

• Staged construction
• Modal analysis
• Seismic analysis
• Temperature modelling
  

• Spillage / leakage
• Coupled thermal/structural
• Nonlinear concrete cracking
• Soil-structure interaction

• Linear/nonlinear buckling
• Concrete creep/shrinkage
• RC/PC slab/wall design
• Steel frame design
  

Solve structural, thermal, seismic, staged construction, creep / shrinkage and eigenvalues analyses within one model, using the innovative LUSAS multiple analysis facility. 

View results for all or selected parts of a model using separate layers for diagram, contour, vector and discrete value data.

• Manually specify basic load combinations, defining loadcases to be included and load factors to be used.
• Use Smart Combinations to generate maximum and minimum results, reducing the number of combinations and envelopes required.
• Define envelopes of multiple loadcases to provide maximum and minimum results.
• Plot bending moment and shear force diagrams and visualise structural deflections.
• Display results in global or local directions, in element directions, or at any specified orientation.
  
• Selectively output results to spreadsheet applications for additional calculation and graphing uses.
  
• For concrete modelling, plot crack width contours, crack patterns and values for supported design codes.
• Use inspection locations to obtain results for user-defined positions of interest on a model.
• Transform and display results in global or local directions, in element directions, or at any specified orientation.

Define wall, slab, roof reinforcement and prestress tendon arrangements in a suitable base model to enable design checks to be carried out.

Design codes supported include:



LUSAS Tank can also be customised to clients' requirements by LUSAS as part of an agreed and paid-for development contract.

This service is being provided currently to a number of clients in order to meet their particular in-house needs.