Civil Hybrid Simulation

Civil Hybrid Simulation is a structural testing technique that combines physical testing and computer modeling, offering a more efficient and affordable way to examine how structural systems respond to realistic dynamic or seismic loading.  Rather than test a complete structure on a large-scale physical test rig, hybrid simulation instead suggests modeling the complete structure while physically testing only a portion.


  • Seismic Simulation
  • Structural Testing
  • Sub-system Characterization
  • Time-History Simulation

Test Specimens

  • Civil Structures
  • Complete Full-Scale Structures
  • Seismic Isolation Bearings
  • Structural Components
  • Substructures

Key Product Features

Unmatched Expertise

PhD-level MTS System Integration Engineers provide expert guidance and training

Innovative Technology

MTS has expert applications expertise and is well connected with top hybrid simulation developers such as University of California at Berkeley

Industry Standard

MTS has commissioned quasi-static and real-time hybrid simulation systems at over 100 sites worldwide

Cost Efficient

Hybrid Simulation is a cost-effective method for testing large scale civil structures

Model Comparison

Quasi-Static (Slow) Hybrid Simulation

  • Used to evaluate substructure or components that predominately contribute stiffness and strength to the complete structure
  • Simpler, less expensive technique

Real-Time (Fast) Hybrid Simulation

  • Used to evaluate substructure or components that contribute damping or inertia effects to the complete structure
  • More complex and expensive technique

Featured Case Studies

Tongji University: Ground-breaking Seismic Simulation Method
Variations in Physical Test Equipment and Computer Simulation Tools for Civil Structural Hybrid Simulation

Technical Overview

QSHS flow chart complex
  • Used to evaluate substructure or components that predominately contribute stiffness and strength to the complete structure

  • Computer Simulation is performed at an artificially slow rate to allow for a more detailed study of a structure and to accommodate the limited capacity of most civil engineering laboratories

  • Hydraulic actuators can be designed for quasi-static to low cyclic applications (<1Hz) with low flow  hydraulic power requirements
  • Less expensive than the real-time solution
Quasi-Static Hybrid Simulation Demonstration Video
RTHS chart complex
  • Used to evaluate substructure or components that contribute damping or inertia effects to the complete structure
  • Computer Simulation is performed in real-time. Special high-speed connection is made directly to the real-time PC via SCRAMNet® reflective memory
  • Requires high-force, dynamic structural actuators with high flow hydraulic distribution to properly evaluate all dynamic properties of the substructure
  • More expensive than the quasi-static solution
Real-Time Hybrid Simulation Demonstration Video

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