T/CACEM 00017-2017 Active Group standards

T/CACEM 00017-2017 Non-bolted spring type comb-shaped board bridge expansion device

Publish Date: 2017-10-18 Implement Date: 2017-08-06 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/CACEM 00017-2017

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Bridge and culvert engineering

ICS Name: Road equipment and devices

Publish Date: 2017-10-18

Implement Date: 2017-08-06

Scope

Scope: This standard specifies the classification, structural forms, specifications and designations, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, and other precautions for boltless comb-type bridge expansion devices. This standard applies to comb-type bridge expansion devices with an expansion range of 40mm to 1120mm (hereinafter referred to as expansion devices). Main technical content: 4. Technical requirements 4.1 Design requirements The structural design of the expansion device shall be calculated and verified in accordance with the provisions and requirements of JTG D60, JTG D62, JTG D64, and JTJ 025 to ensure that all components of the structure are safe, reliable, and durable. The structural design should facilitate drainage, be easy to replace, and be convenient for construction. 4.2 Performance 4.2.1 Comb-type lap length When the maximum compression of the horizontal gap of the comb-type plate is reached, the vertical gap between the teeth plates shall not be less than 10mm; the horizontal gap shall not be less than 3mm; when the maximum tensile deformation is reached, the lap length of the teeth plates shall not be less than 30mm. 4.2.2 Overall performance The overall performance of the expansion device shall meet the requirements specified in Table 2. Table 2 Requirements for the overall performance of expansion devices Serial No. Item Performance requirements Three-proof type Pre-pressure type Cantilever type Seamless type 1 Tensile and compression Maximum horizontal friction resistance (kN/m) ≤4 ≤4 ≤4 ≤5 2 Traffic safety Vertical deviation in the direction of travel when no vehicle is on the expansion device (mm) ≤1.0 (40≤e < 80) ≤1.5 (80≤e < 240) ≤2.0 (240≤e < 480) ≤2.5 (480≤e < 2400) 3 Waterproof No leakage after 24 hours of water filling 4 Dustproof No leakage during expansion deformation 5 Shock resistance (fatigue