T/CCTAS 208-2025 Active Group standards

T/CCTAS 208-2025 Expansion and Contraction Device for the Longitudinal Seams of Widened Bridges

T/CCTAS 208-2025 Expanding device for longitudinal joints of a bridge with increased width

Publish Date: 2025-04-24 Implement Date: 2025-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CCTAS 208-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Bridge construction

Publish Date: 2025-04-24

Implement Date: 2025-05-01

Scope

Main technical content: At present, many new and old bridges directly use existing bridge expansion devices for longitudinal deformation joints, which cannot meet the requirements of displacement between new and old bridges, resulting in easy damage to the devices and failure to ensure the structural safety and service life of the products. Through research on existing domestic bridge expansion device technical standards and various products, combined with the current engineering application situation. Through the preparation of this standard, the structural types, materials, design, construction, acceptance, and inspection of longitudinal deformation joint expansion devices for widened bridges can be standardized. The rotation of multi-directional displacement hinges can meet the vertical displacement requirements between new and old bridges, and the sliding between cross-joint steel plates and fixed steel brackets can meet the requirements of longitudinal and transverse displacement.