Eriksson Lateral
Key Features
- ASCE 7-16 & ASCE 7-22 lateral loading
- ELF seismic, directional wind & lateral earth pressure
- Linear-elastic building FEM with P-Delta
- Shear walls, stacked wall groups, openings & cantilevered columns
- Rigid and flexible diaphragms — mixed by story or region
- Deep-beam diaphragm shear, moment, chord & collector output
- Drift, torsion, overturning & stability checks
- Configurable calculation reports with PDF export
- SAP2000 S2K & STAAD export · optional .NET API
Eriksson Lateral gives precast engineers a transparent workflow from ASCE 7 loading through finite-element building analysis and diaphragm design. Model the vertical lateral system, assign rigid or flexible diaphragm behavior, solve wind and seismic cases, and document the governing forces in configurable calculation reports.
Loads, load paths, building response, and diaphragm demands come from one coordinated model. Story geometry, diaphragm extents, materials, cracked stiffness, and LFRS locations are entered once; ASCE 7 load cases and combinations are generated automatically and solved together.
Rigid where stiffness governs. Flexible where tributary area governs. Eriksson Lateral keeps each diaphragm region's load path, supports, reactions, and design output independent — without implying a semi-rigid analysis — and presents the deep-beam results precast engineers actually detail to: shear, moment, chord, collector, and continuity-tie demands.
From Code Loads to Diaphragm Demands
Load Generation
Equivalent Lateral Force seismic, the Seismic Design Category A general structural-integrity force (Fx = 0.01Dx), and Chapter 27 directional wind — plus Rankine or Coulomb lateral earth pressure.
FEM & Stability
Linear-elastic building response with iterative or geometric-stiffness P-Delta, isolated wall-stack shear locking, and podium hybrid analysis.
Rigid Diaphragm
Rigid-body floor constraints distribute load by LFRS stiffness. Scaled FEM reactions support a code-force deep-beam free body.
Flexible Diaphragm
Voronoi tributary areas route wall loads; a separate continuous-beam model resolves shear, moment, chord, and continuity-tie demands.
Model It, Load It, Solve It
What You Get
Automated Lateral Loading
ELF seismic, directional wind, lateral earth pressure, and ASCE load combinations generated from one model.
Building FEM
Linear-elastic analysis of shear walls, stacked wall groups, openings, and cantilevered columns with P-Delta options.
Mixed Diaphragm Routing
Rigid and flexible diaphragm regions by story — or as separate regions on the same story — with reactions kept independent by region.
Deep-Beam Diaphragm Output
Rigid-diaphragm loading, shear, and moment diagrams with station tables, chord forces, collectors, and shear flow.
Calculation Reports
Configurable report sections, saved report configurations, formulas, diagrams, governing results, preview, print, and PDF export.
Connected Workflow
Native projects, SAP2000 S2K and STAAD export, custom display units, plus an optional licensed API for project and analysis automation.
Modeling, Loading & Results
Modeling & Loading
- Building model — story geometry, diaphragm extents, materials, cracked stiffness, and LFRS locations.
- LFRS elements — concrete shear walls, stacked wall groups and openings, plus cantilevered columns.
- Loads — wind, seismic, gravity/user, and Rankine or Coulomb lateral earth-pressure loads.
- Site parameters — ASCE Hazard Tool lookup or engineer-specified site and wind parameters.
- Units — US Imperial, Metric, or custom per-quantity display units.
Results & Reporting
- Building response — story forces, overturning, torsion, displacements, amplified drift, and stability checks.
- Per-wall output — axial, shear, moment, deflection, and foundation reactions.
- Diaphragm design — Fpx, shear flow, chord and collector forces, continuity ties, and diagrams.
- Report outline — executive, input, compliance, loading, wall, and diaphragm sections.
- Output — paginated preview, saved report configurations, direct print, and calculation-report PDF.
Rigid & Flexible Diaphragm Workflows
Rigid Deep-beam diaphragm
- Determine the design force for each rigid diaphragm region.
- Scale the region's FEM wall reactions to that force while preserving the stiffness-based distribution and equilibrium.
- Generate deep-beam results for shear, moment, chord, collector, and continuity-tie demands.
Flexible Continuous-beam diaphragm
- Allocate story force by tributary area to each flexible diaphragm region.
- Route the region's load only to the walls that support it.
- Generate continuous-beam results for shear, moment, chord, and continuity-tie demands.
Eriksson Lateral API
Connect your own .NET applications to a running Eriksson Lateral instance through the Eriksson.Lateral.ClientAPI NuGet package. Create, open, and save projects, push or pull project data, edit the building model, import LFRS geometry, run analyses, and retrieve results programmatically — ideal for batch studies and embedding lateral checks inside your own design tools.
What the API can do
- Create, open, and save projects; push or pull project data.
- Edit the building model and import LFRS geometry.
- Run analyses and retrieve results programmatically.
Technical Specifications
Licensing
Every license includes full technical support and access to all updates. Contact us for a quote.
Single User License
Software can be installed on a single workstation. This license is tied to the workstation's hardware and cannot be shared with other users, and can only be moved to another machine after contacting us. Most suitable for mobile computers or a single user/workstation setup.
Request a QuoteFloating Network License
Installed on as many workstations as you like; the number of concurrent users is limited by the seats you purchase. The license server lives on your network and checks seats in and out automatically — ideal for offices and teams.
Contact UsEriksson Lateral is an engineering aid; the licensed design professional remains responsible for project inputs, assumptions, interpretation, and final design.
