On 27 July 2023, China National Cranes Machinary Technical committee (SAC/TC227) released the drafted standard “ Safety assessment rules for shipbuilding gantry cranes” to public for commenting .
This document stipulates the principles, methods, assessment procedures, and safety assessment reports for the safety evaluation of ship gantry cranes. This document is applicable to the safety assessment of ship gantry cranes specified in GB/T 27997-2011 and does not cover issues related to usage management, routine maintenance, operational environments, and safety hazards associated with lifting materials.
Main drafting units: China Shipbuilding Ninth Design and Research Institute Engineering Co., Ltd., Beijing Crane Transport Machinery Design and Research Institute Co., Ltd. The planned completion date is November 22, 2024.
This standard specifies the principles and methods for the safety assessment of ship gantry cranes. The assessment principles consider the entire ship gantry crane as the safety assessment object. The safety state level of the whole machine is determined by two components: the safety state level of important structural components, which determine the service life of the entire machine, and the safety state level of key components, which are related to local safety. The safety state level of important structural components is related to the overall safety of the gantry crane, while the safety state level of key components is related to local safety. Based on clarifying the relationship between the safety state level of the whole machine and the safety state level of important structural components and key components, the safety assessment principles are divided into whole machine assessment principles, important structural component assessment principles, and key component assessment principles, and are explained accordingly.
The assessment methods are borrowed from GB/T 41510-2022 "Crane Machinery Safety Assessment Specification General Requirements" and are divided into current state assessment, predictive assessment, and comprehensive assessment. The assessment methods involve checking the historical performance of the crane, inspecting and testing the current state of the crane, conducting further analysis based on condition monitoring, and assessing the overall safety of the crane while predicting the impact of future use on safe operations. This standard adopts a comprehensive assessment approach, which combines the assessment conclusions of the crane to determine the safety state level of the entire machine.
This standard specifies the safety assessment procedure for ship gantry cranes, which mainly includes the collection of assessment object information, selection of assessment units, unit assessment, unit risk estimation, unit safety state level determination, gantry crane safety state level determination, and the preparation of a safety assessment report. It provides a summary explanation of each step in the assessment procedure. The specific guidelines for these steps draw from standards such as GB/T 41510-2022 "Crane Machinery Safety Assessment Specification General Requirements," GB/T 16856-2015 "Guidance and Examples of Risk Assessment for Machinery Safety," GB/T 15706-2012 "General Principles for Safety Design of Machinery - Risk Assessment and Risk Reduction," GB/T 33080-2016 "Safety Assessment Regulations for Tower Cranes," and others.
The Chinese draft for this standard can be downloaded here
https://www.bestao-consulting.com/detail?id=1520&status=bestao_library
The drafting explanation materials in Chinese can be downloaded here
https://www.bestao-consulting.com/detail?id=1521&status=bestao_library
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