Program Summary
This modular bridge system with a 75+ year service life is a modern method of bridge building that saves installation time, improves worker safety, reduces environmental field impacts and the design reduces future maintenance requirements. Options allow for a simply supported or integral design with modular abutment design options. Clear span lengths from 21’ to 61’ with the ability to add pier/ bent cap components for muti span structures. Installations typically take 7 days or less and can be self-performed or contractor supplied with CMC support services. All components are light weight and easily transported allowing for smaller on-site cranes and handling. The Bridge system meets AASHTO LFRD specifications in the 9th edition.
Contact Information
Michael Stroia, Technical Manager
CMC Bridge
330.327.2080
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cmc.com
Detailed Description of Program
Why is it innovative?
A complete solution above the foundation, including superstructure deck panels, abutments, wing walls, and pier caps. The integrated steel formwork and reinforcing components are prefabricated off-site, then completed when concrete is placed on-site to form a single concrete slab. Fast installation at three to five days. Modular units are designed to be easily transported. 75-year design life using durable components and certified engineering designs. Minimal maintenance with no joints, tie downs or bearings. Construction performed above improving safety and reducing environmental impact.
What would a field demonstration entail?
The modular components (abutments and superstructure) are pre-engineered, prefabricated and staged offsite. After engineering and fabrication of components, the demonstration will first show the ease of which the modular abutments are lifted onto foundation ready for concrete pouring. Next the superstructure panels are lifted onto the abutments and connected with splice bars. Finally, the concrete is poured to complete the bridge.
System Description:
An AASHTO compliant reinforced concrete structure that consists of several modular parts: deck panels, abutments, wing walls, headstocks, and pier caps. Once the foundations are established on-site, the substructure (abutments, wing walls, headstocks and/or pier caps) are placed and filled with concrete. Then, after the substructure concrete is sufficiently cured, the decks are then placed and also filled with concrete.