UHDC corrugated steel composite deck beam

By introducing a layered structure and connection design into the UHDC corrugated steel composite cap beam, the stress distribution was optimized, transportation and construction problems were solved, material utilization and structural durability were improved, and service life was extended.

CN224412292UActive Publication Date: 2026-06-26HENAN UNIVERSITY OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN UNIVERSITY OF TECHNOLOGY
Filing Date
2025-07-23
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

UHDC corrugated steel composite cap beams present difficulties during transportation and hoisting, and uneven stress leads to the underutilization of material properties, making the concrete bridge deck prone to cracking and affecting structural durability and safety performance.

Method used

The structure adopts a layered design with a straight web at the cantilever end. It uses a combination of ultra-high ductility concrete and ordinary concrete layers, and forms an interlocking connection through a connection structure design. Combined with toothed connection surfaces and stud connections, the stress distribution is optimized, enhancing the overall strength and durability.

Benefits of technology

The transportation and hoisting process was optimized, material utilization was improved, construction difficulty and safety risks were reduced, the cracking problem of concrete bridge deck was solved, and the service life of the cap beam and the safety of the structure were extended.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to steel combined beam engineering technical field, concretely relates to a UHDC corrugated steel combined bent cap, including bent cap body, the cantilever end of bent cap body is provided with straight web, the upper surface of bent cap body is provided with super high ductility concrete (UHDC) layer, the below of super high ductility concrete layer is provided with ordinary concrete (NC) layer, super high ductility concrete layer and ordinary concrete layer are connected through connecting structure, the middle position of bent cap body is provided with corrugated steel web, prolongs maintenance cycle and bent cap bears negative bending moment, and the upper and lower layer concrete forms occlusal connection through dentiform interface, can improve the durability and security of bent cap greatly.
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