T/JMTX 006-2020 Active Group standards

T/JMTX 006-2020 Universal bridge crane stress testing method

Publish Date: 2020-03-20 Implement Date: 2020-03-20 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/JMTX 006-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Cranes

ICS Name: Crane

Publish Date: 2020-03-20

Implement Date: 2020-03-20

Scope

Main Technical Content: 4 Test Conditions The test conditions of this standard shall comply with the relevant provisions of GB/T 14405. For bridge cranes with special requirements, corresponding supplementary item tests shall be conducted in accordance with the design requirements. 5 Structural Stress Testing 5.1 Test Conditions and Loads The test conditions and loads for general bridge cranes shall comply with the requirements of Table 1. Table 1: Stress Testing Conditions and Loads Serial Number Test Condition Test Purpose Tested Structure Test Items 1 The trolley is located at the center of the span, and the rated load is lifted by 1.25 times, with the height above the ground approximately 300mm. The load is kept stationary to verify the strength and stiffness of the main beam. The static stress at the center of the main beam top cover plate and the static stress at the center of the main beam end cover plate. 2 The trolley is located at the center of the span, and the rated load is lifted by 1.1 times, with the height above the ground approximately 1.5m. The load is lowered at the rated speed, and the trolley is stopped during the descent to verify the strength and stiffness of the main beam. The dynamic stress at the center of the main beam top cover plate and the dynamic stress at the center of the main beam end cover plate. 3 The trolley is located at the center of the span, and the rated load is lifted by 1.1 times, with the height above the ground approximately 300mm. The trolley is moved at the rated speed, and the trolley is stopped during the movement to verify the strength and stiffness of the main beam. The dynamic stress at the center of the main beam top cover plate and the dynamic stress at the center of the main beam end cover plate. 4 The trolley is located at the center of the span, and the rated load is lifted by 1.1 times, with the height above the ground approximately 300mm. The trolley is moved to t