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Surendran-Aathiththan/README.md

Surendran Aathiththan

Civil Engineering undergraduate, University of Peradeniya, Sri Lanka Interested in structural and geotechnical engineering: analysing and designing reinforced-concrete buildings, foundations and soil–structure systems.

This profile holds my engineering software projects: analysis models, design calculations, drawings and notes. Each repository README states what is complete and what is still in progress.

📫 aathiththan2022@gmail.com · LinkedIn

Featured engineering projects

Project Software Highlights
G+4 RC building: analysis, design and foundations STAAD.Pro V8i, STAAD.Foundation, AutoCAD 15 m × 12 m, 5-storey frame · IS 1893 seismic (VB = 1,044 kN, T = 0.58 s) and wind loads · 21 load combinations · IS 456 beam/column/slab design · 30 isolated footings (3.05–4.10 m) · foundation GA and detail drawings
G+1 commercial building ETABS, AutoCAD DXF grid import · wall, floor, lift/tank, seismic (IS 1893) and wind (IS 875) loads · concrete frame design check with failed members resized
Sheet-pile shoring wall and footing models PLAXIS 2D Six-layer Hardening Soil profile with groundwater, plate wall with interfaces and ground anchor (in progress) · axisymmetric circular-footing analysis (complete)
RC beam analysis → section design Prokon Fixed–pinned 5 m beam (M = 15.8 kN·m, δ = 2.9 mm) carried into an ACI 318 section design (As = 223 mm² → 3Y10)
Building planning drawings and BIM Revit, AutoCAD Three CE2130 university building designs: plans, elevations, sections, roof, foundation and column details
Engineering survey Civil 3D 149-point total-station survey (CE2150) processed into a Civil 3D survey drawing

More: ETABS models · AutoCAD drafting · MS Project scheduling

Technical skills

Structural analysis and design

  • 3D RC frame modelling: materials, sections, supports, rigid diaphragms, slab meshing
  • Load calculation and assignment: dead, live, wall, floor-finish, staircase, lift/tank loads
  • Seismic (IS 1893 equivalent static) and wind (IS 875) load generation; load combinations to IS 456, BS 8110 and Eurocode-style factors
  • Concrete member design checks, member resizing, concrete and steel take-off
  • Isolated footing design from support reactions

Geotechnical engineering

  • PLAXIS 2D plane-strain and axisymmetric models with Mohr-Coulomb and Hardening Soil materials
  • Soil parameter selection (E50, Eur, c′, φ′, ψ), groundwater, plate and interface modelling, staged calculation

Drafting, BIM, surveying and planning

  • Plans, elevations, sections and foundation details in AutoCAD and Revit
  • Survey data processing and drawing in Civil 3D
  • Construction scheduling with calendars, milestones and task links in MS Project

Software

Area Tools I have used in the projects on this profile
Structural analysis and design ETABS · STAAD.Pro (V8i and CONNECT) · STAAD.Foundation · SAP2000 · Prokon · SAFE (model set-up)
Geotechnical PLAXIS 2D
Drafting and BIM AutoCAD · Revit · Civil 3D
Project management Microsoft Project

Design codes used in my models: IS 456:2000 · IS 1893 · IS 875 (Part 3) · BS 8110 · ACI 318-14

Currently working on

  • Completing the PLAXIS shoring-wall model: anchor, excavation stages, wall forces and factor of safety
  • Adding lateral loads and concrete design to my ETABS G+2 and STAAD.Pro CONNECT models

Pinned Loading

  1. Etabs-Projects Etabs-Projects Public

    ETABS RC building models with IS 1893 seismic and IS 875 wind loads, concrete frame design checks, a steel truss model and a SAFE slab.

  2. Plaxis-2D-Projects Plaxis-2D-Projects Public

    PLAXIS 2D models: axisymmetric circular footing on sand and a sheet-pile shoring wall with ground anchor in layered soil.

  3. Revit-Projects Revit-Projects Public

    Revit building designs from University of Peradeniya CE2130: plans, elevations, sections, roof and foundation details.

  4. Prokon-Projects Prokon-Projects Public

    Prokon RC beam analysis carried into an ACI 318 section design, plus section and walkway frame models.

  5. Staad-pro-v8i-projects Staad-pro-v8i-projects Public

    G+4 RC building in STAAD.Pro: IS 1893 seismic and wind analysis, IS 456 concrete design, 30 isolated footings and foundation drawings.

  6. Sap2000-Projects Sap2000-Projects Public

    SAP2000 RC frames with IS 1893 seismic loading and spaghetti-bridge truss/arch concept models.