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    EXPERT WEBINAR
    Seismic Analysis   |   15-Storey RC Tower   |   Accra Case Study
    Case Study on Seismic Analysis of a 15-Storey RC Tower in Accra
    Using MIDAS GEN NX
     
    📅 Date
    4th September 2026 (Friday)
    🕒 Time
    11:00 AM – 12:00 PM (GMT)
    📍 Platform
    Live on GoToWebinar
      REGISTER NOW →
       
    📝 Overview
    This project-based case study webinar explores the seismic analysis of a 15-storey reinforced-concrete tower with a five-level basement in Accra, Ghana.

    The session will demonstrate the modelling workflow of its core wall–perimeter frame system, response spectrum analysis in accordance with Ghana and Eurocode requirements, dynamic-response spectrum analysis, member offsets using rigid links, and the interaction between the tower, podium, and foundation systems.
    What You'll Explore
    Structural Modelling
    • 15-storey reinforced-concrete tower
    • Five-level basement
    • Core wall–perimeter frame system
    • Member offsets using rigid links
    		 
    Seismic Analysis
    • Response spectrum analysis
    • Ghana and Eurocode requirements
    • Dynamic-response spectrum analysis
    • Tower, podium, and foundation interaction
    Key Engineering Topics
    ✓ Core wall–perimeter frame system
    ✓ Response spectrum analysis
    ✓ Ghana and Eurocode requirements
    ✓ Dynamic-response spectrum analysis
    ✓ Member offsets using rigid links
    ✓ Tower, podium, and foundation interaction
    📌Agenda
    Modelling, seismic analysis, column offsets, and foundation design.
    01
    MODEL
    Modelling Workflow for the Tower–Podium–Basement System
    • Model the central core, perimeter frames, flat-slab podium, and five-level basement
    • Represent the 54 m tower and its complete structural load path
    02
    SEISMIC PARAMETERS
    Defining Code-Based Seismic Parameters
    • Apply the response spectrum, behaviour factors, and stiffness modifiers
    • Establish seismic inputs in line with Ghana and Eurocode requirements
    03
    ANALYZE
    Global Dynamic Response of the Structure
    • Evaluate vibration modes, modal mass participation, and fundamental frequency
    • Review the tower’s overall response under seismic loading
    04
    RIGID LINKS
    Managing Column Offsets with Rigid Links
    • Model section reductions and changes in column insertion points at upper floors
    • Transfer forces accurately across offset structural members
    05
    FOUNDATION DESIGN
    Isolated and Raft Foundation Design
    • Review load transfer to the tower raft and isolated podium foundations
    • Meshed design of the foundation as per Eurocode
    • Punching shear checks in the foundation
    • Stability checks like soil pressure and overturning
    Structural Model
    15-Storey RC Tower with Five-Level Basement
    15-Storey RC Tower Structural Model
    Tower Podium Basement Structural Model
    🎙️Webinar Speaker
    Eng. David Anagli
    Structural Engineer | ESPCO
    A structural engineer with years of experience in structural analysis and design. He has designed a wide range of structures such as hospitals, multistorey structures, residential facilities and retaining walls. He does both reinforced concrete and steel design and has a keen interest in structural dynamics.
    View LinkedIn Profile →
    Engineering Services Provision Company Limited (ESPCO)
    		 ESPCO Logo
    ESPCO is a Ghanaian multidisciplinary engineering consultancy established in 2013 to provide innovative, reliable, and cost-effective engineering solutions across Ghana, Africa, and international markets. With a commitment to excellence, integrity, quality, and client satisfaction, ESPCO brings together experienced professionals across structural, civil, geotechnical, infrastructure, and project management disciplines.

    The company provides engineering consultancy, design, analysis, construction supervision, project management, and technical assessment services for a wide range of building and infrastructure projects, including high-rise structures, transportation infrastructure, foundations, and specialized engineering projects.
    🎁 Attendee Benefit
    MIDAS GEN NX Trial
    MIDAS GEN NX Trial
    Get access to a 15-day trial version of GEN NX.
    MIDAS GEN NX Trial
    Participation Certificates
    Get participation certificates for MIDAS IT.