Earthquake Engineering + Seismic Response

seismic engineering services

Earthquake Engineering and Site-Specific Response Analyses for Complex Infrastructure

Specialized seismic studies, site-specific response analysis, liquefaction evaluation and earthquake hazard engineering for transportation, energy, federal and important infrastructure projects nationwide.

Specialized seismic studies, site-specific response analysis, liquefaction evaluation and earthquake hazard engineering for transportation, energy, federal and important infrastructure projects nationwide.

Our Seismic Engineering Approach

Seismic and earthquake engineering is one of the most specialized disciplines in geotechnical practice. As building codes evolve, developable land becomes more constrained and important infrastructure ages, more projects require site-specific seismic analysis rather than default code values. ECS Government Solutions provides in-house seismic engineering expertise to address these requirements without relying on outside academic consultants. Where required, laboratory testing and data development are supported through the GTOC, providing advanced evaluation of dynamic soil properties and behavior, liquefaction and mitigation technologies.

Our seismic practice includes site-specific seismic response analysis under ASCE/SEI and federal design criteria, liquefaction triggering and consequence analysis, earthquake-induced ground deformation and seismic risk and resilience assessment for large project areas, not just individual structures. ECS has supported seismic studies on projects ranging from coastal transportation corridors in the Southeast to port and harbor facilities on the West Coast and international locations, including evaluations where localized component performance can affect overall facility operation.

Our Seismic Engineering Approach

Seismic and earthquake engineering is one of the most specialized disciplines in geotechnical practice. As building codes evolve, developable land becomes more constrained and important infrastructure ages, more projects require site-specific seismic analysis rather than default code values. ECS Government Solutions provides in-house seismic engineering expertise to address these requirements without relying on outside academic consultants. Where required, laboratory testing and data development are supported through the GTOC, providing advanced evaluation of dynamic soil properties and behavior, liquefaction and mitigation technologies.

Our seismic practice includes site-specific seismic response analysis under ASCE/SEI and federal design criteria, liquefaction triggering and consequence analysis, earthquake-induced ground deformation and seismic risk and resilience assessment for large project areas, not just individual structures. ECS has supported seismic studies on projects ranging from coastal transportation corridors in the Southeast to port and harbor facilities on the West Coast and international locations, including evaluations where localized component performance can affect overall facility operation.

seismic engineering services

Seismic Engineering Capabilities

  • Site-specific seismic response analysis (ASCE 7-16 / 7-22, IBC and other code required procedures)
  • Liquefaction triggering, settlement and lateral spread evaluation
  • Seismic hazard analysis using deterministic and probabilistic methods (DSHA / PSHA)
  • Earthquake-induced ground deformation and slope stability under seismic loading
  • Seismic design support for dams, levees, embankments and earth-retaining structures
  • Foundation and pile design for seismic loading conditions
  • Seismic resilience and system-level risk evaluation for ports, energy facilities and transportation systems
  • Coordination with structural engineers on soil-structure interaction
  • Advanced soil dynamic testing and evaluation

Seismic Engineering Capabilities

  • Site-specific seismic response analysis (ASCE 7-16 / 7-22, IBC and other code required procedures)
  • Liquefaction triggering, settlement and lateral spread evaluation
  • Seismic hazard analysis using deterministic and probabilistic methods (DSHA / PSHA)
  • Earthquake-induced ground deformation and slope stability under seismic loading
  • Seismic design support for dams, levees, embankments and earth-retaining structures
  • Foundation and pile design for seismic loading conditions
  • Seismic resilience and system-level risk evaluation for ports, energy facilities and transportation systems
  • Coordination with structural engineers on soil-structure interaction
  • Advanced soil dynamic testing and evaluation

Markets + Project Types

  • Energy infrastructure including nuclear, conventional power, solar and wind
  • Transportation systems including bridges, causeways, transit corridors and highway programs
  • Dams, levees and high-consequence water-retention structures
  • Ports, harbors and waterfront infrastructure
  • Federal facilities and Department of Energy programs
  • Sites where geologic conditions and design criteria require site-specific response analysis

Markets + Project Types

  • Energy infrastructure including nuclear, conventional power, solar and wind
  • Transportation systems including bridges, causeways, transit corridors and highway programs
  • Dams, levees and high-consequence water-retention structures
  • Ports, harbors and waterfront infrastructure
  • Federal facilities and Department of Energy programs
  • Sites where geologic conditions and design criteria require site-specific response analysis

Novel Seismic Research

seismic engineering services

Novel Seismic Research

Beyond conventional seismic hazard analyses and liquefaction studies, ECS Government Solutions is working on foundational research into the use of geo-engineered nonlinear seismically induced phase change metamaterials as a seismic cloaking agent. The use of geo-metamaterials to cloak or “hide” structures from seismic waves is an emerging field of study. Rather than merely diverting the earthquake, ECS Government Solutions’ research is developing new and complex methodologies that focus on absorbing and transforming the work done by the propagating wave into less harmful forms. The preliminary results indicated that the phase change of these materials can be quantified under highly controlled laboratory conditions.

Beyond conventional seismic hazard analyses and liquefaction studies, ECS Government Solutions is working on foundational research into the use of geo-engineered nonlinear seismically induced phase change metamaterials as a seismic cloaking agent. The use of geo-metamaterials to cloak or “hide” structures from seismic waves is an emerging field of study. Rather than merely diverting the earthquake, ECS Government Solutions’ research is developing new and complex methodologies that focus on absorbing and transforming the work done by the propagating wave into less harmful forms. The preliminary results indicated that the phase change of these materials can be quantified under highly controlled laboratory conditions.

Tybee River Bridge

seismic engineering services

Tybee River Bridge

The “Tybee” project, as we call it, is a Bridge Foundation and Soil Survey Investigation for two bridges located in a coastal marsh between Savannah and Tybee Island, Georgia. Bull River Bridge is approximately 7/10 mile in length with 31 bents and Lazaretto Creek Bridge is approximately 1/4 mile in length with 12 bents. ECS coordinated its subsurface drilling of approximately 9,000 LF with the City of Tybee, federal and state agencies to meet environmental, logistical and multiple design challenges. Design includes a primary and alternate foundation type that can accommodate liquefiable soils. Both bridges are located in areas that have the potential to be classified as Seismic Site Class F and are considered as critical structures.  We are therefore working through a seismic analysis process that includes a Site Specific Response Analysis (SSRA) to determine site-specific acceleration response sprectra per FHWA methodologies. ECS’ seismic analysis process is being reviewed closely by GDOT as a potential model for other similar coastal bridges within the state.

The “Tybee” project, as we call it, is a Bridge Foundation and Soil Survey Investigation for two bridges located in a coastal marsh between Savannah and Tybee Island, Georgia. Bull River Bridge is approximately 7/10 mile in length with 31 bents and Lazaretto Creek Bridge is approximately 1/4 mile in length with 12 bents. ECS coordinated its subsurface drilling of approximately 9,000 LF with the City of Tybee, federal and state agencies to meet environmental, logistical and multiple design challenges. Design includes a primary and alternate foundation type that can accommodate liquefiable soils. Both bridges are located in areas that have the potential to be classified as Seismic Site Class F and are considered as critical structures.  We are therefore working through a seismic analysis process that includes a Site Specific Response Analysis (SSRA) to determine site-specific acceleration response sprectra per FHWA methodologies. ECS’ seismic analysis process is being reviewed closely by GDOT as a potential model for other similar coastal bridges within the state.

Why ECS Government Solutions

  • In-house seismic expertise rather than reliance on outside academic consultants
  • Integrated delivery from seismic hazard evaluation through laboratory testing and design support
  • Coordination across ECS transportation, energy, federal and data center practices
  • Experience delivering seismic studies across the United States and internationally

 

When to Engage ECS Government Solutions

  • Projects requiring site-specific seismic response analysis under current codes or federal criteria
  • Sites with complex geologic or seismic conditions
  • Infrastructure with performance requirements tied to system operation or reliability
  • Facilities where localized ground response can affect key components
  • Projects requiring coordination between geotechnical, structural and seismic design

Why ECS Government Solutions

  • In-house seismic expertise rather than reliance on outside academic consultants
  • Integrated delivery from seismic hazard evaluation through laboratory testing and design support
  • Coordination across ECS transportation, energy, federal and data center practices
  • Experience delivering seismic studies across the United States and internationally

 

When to Engage ECS Government Solutions

  • Projects requiring site-specific seismic response analysis under current codes or federal criteria
  • Sites with complex geologic or seismic conditions
  • Infrastructure with performance requirements tied to system operation or reliability
  • Facilities where localized ground response can affect key components
  • Projects requiring coordination between geotechnical, structural and seismic design
seismic engineering services

Contact ECS Government Solutions

Have a project that requires seismic analysis or site-specific response evaluation? Connect with the ECS Government Solutions team to start the conversation.

CONTACT US