CHI Consulting Engineers, LLC

Full-service bridge design from scoping and feasibility through final design and construction support, covering conventional highway bridges, long-span structures, and one-of-a-kind signature bridges.

• Signature Bridge Design

  Structural design of landmark and architecturally complex signature bridges.

• Conventional Highway Bridge Design

  Design of standard highway bridge replacements and new spans across all design phases.

• Construction Support Services

  Engineering support during construction, including scoping studies and design clarifications through project close-out.

Independent structural checking and peer review of bridge and structure designs for owners and engineering firms in the US and internationally, reducing project risk and supporting cost control.

• Independent Structural Checking

  Detailed verification of structural calculations and design documents by qualified engineers independent of the design team.

• Peer Review

  Technical peer review of bridge and structural designs for domestic and international clients.

Innovative construction-phase engineering for complex bridge projects, including high-load jacking frames and temporary supports for pin and hanger replacement on long-span suspension and truss bridges.

• High-Load Jacking Frames and Temporary Supports

  Custom design of jacking frames and temporary supports for loads exceeding 1,000 tons in confined conditions on long-span bridges.

• Construction Method and Sequence Analysis

  Development of construction methods and sequences that minimize traffic disruption and improve site productivity.

Investigation of structural failures, accidents, and anomalies during construction, service, and demolition, providing independent opinions and technical expert services for clients in the US and internationally.

• Root Cause Investigation

  Systematic analysis to identify sources of structural distress or failure using engineering expertise and advanced computational tools.

• Technical Expert Services

  CHI engineers serve as technical experts for clients in the US and abroad.

Specialized structural and fluid analysis using finite element modeling, computational fluid dynamics, and in-house programs to solve complex structural engineering challenges.

• Finite Element Modeling

  Linear and nonlinear, elastic and inelastic, static and dynamic structural analysis.

• Computational Fluid Dynamics and VIV Analysis

  CFD and vortex-induced vibration analysis for bridges and structures subject to wind and fluid loading.

• Fracture Mechanics and Stress Analysis

  Integration of fracture mechanics, structural analysis, and field testing to evaluate structural integrity.

Long-term, continuous monitoring of bridges and structures using state-of-the-art sensors and a proprietary data acquisition and management system, measuring strain, stress, deformation, and vibration.

• Sensor-Based Continuous Monitoring

  Installation and operation of sensor arrays for high-precision, long-term structural monitoring.

• Computer Vision and Motion Magnification

  Non-contact displacement and vibration measurement using computer vision and motion magnification techniques.