May I ask: What is the specific meaning of “non-conventional lifting equipment and methods” as mentioned in Document Jianban Zhi [2018] No. 31?
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This post was last edited by gcbllz on 2023-3-22 07:48. Attachment 2 to Document Jianban Zhi [2018] No. 31, \"Notice from the Office of the Ministry of Housing and Urban-Rural Development on Issues Related to the Implementation of the Provisions on Safety Management for High-Risk Construction Tasks\", lists the types of high-risk construction tasks that fall within a certain scale: Third (1) – Lifting operations that use unconventional lifting equipment or methods, and in which the weight of each item being lifted is 100 kN or more. Question: 1. What specific equipment and methods are referred to as unconventional lifting equipment and methods? Please provide a detailed explanation. 2. Do the two cranes commonly used in the installation of chemical plant equipment, when working together using either a combined lifting method or one main crane with another crane to assist in lifting, fall under the category of unconventional equipment and methods as defined in these regulations? Thank you. Please share your views on the need for expert evaluation of special plans for lifting and hoisting operations; it would be best if there are official guidelines, but sharing one’s own experience or common practices is also good.
1. The unconventional lifting equipment and methods referred to in Document Jianban Zhi [2018] No. 31 are those that are not traditional in lifting and hoisting projects. These devices and methods may differ from traditionally used equipment such as cranes and tower cranes, and also include special lifting plans that are different from conventional lifting methods. For example, aerial lifting, underwater lifting, suspended lifting, and bridge-laying lifting can all be considered unconventional lifting equipment or methods. 2. The lifting method using two machines together, or one main crane and one auxiliary crane, may be considered an unconventional equipment or method; this depends on the specific application scenario and actual conditions. If this lifting method requires special measures to ensure safety, such as adding auxiliary ropes or adjusting the sequence or position of the operations, then it may be classified as a non-conventional equipment or method. It is recommended to consult professional technicians or safety management departments before carrying out actual operations, to ensure compliance with relevant regulations and maintain safety. .
Thank you. Your reply is very formal :) . I think it’s not clear whether expert evaluation is needed for the plans related to the lifting of chemical plant equipment; since it’s not clear, strict procedures are followed, which wastes time and money. The lifting methods of using two cranes for lifting together, or one main crane along with one auxiliary crane, are very common in equipment lifting. The crane remains fixed in place and does not move; it simply lifts the equipment from where it is and places it on its foundation. In fact, it’s sufficient to have clear criteria for determining whether expert consultation is needed or not. Such ambiguous statements that depend on specific situations and actual conditions are often the most troublesome; for example, what should be done in cases where the construction party believes expert consultation is not necessary, while the supervisor thinks it is required? Without expert justification, they won’t let you do it; they force you to provide such justification.
Please, dear managers from the construction company, offer some guidance!