A prefabricated building box-shaped steel column rotating, hoisting, in-position welding and fixing installation process
An installation process and assembly technology, which is applied in the direction of construction, building structure, and building material processing, can solve the problems of insufficient utilization, waste of resources, and heavy weight, so as to improve the efficiency of mechanical use and make full use of resources Effect
Active Publication Date: 2018-09-14
浙江中南绿建科技集团有限公司
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Problems solved by technology
[0004] Regardless of the selection of tower cranes or mobile lifting equipment, if you want to avoid lifting blind spots, you must choose according to the maximum lifting moment. The selection of large-scale tower cranes and mobile lifting equipment will lead to low mechanical efficiency of lifting equipment, insufficient utilization, and waste of resources. This is one of the deficiencies that often occur in the installation of steel columns in prefabricated buildings and cannot be avoided. one
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[0044] Such as Figure 1 to Figure 13 As shown, it is a specific embodiment of a prefabricated building box-shaped steel column rotating, hoisting, in-position welding and fixing installation process of the present invention. According to the rated lifting parameters of the lifting equipment, determine whether it is necessary to set the temporary extension rod for the steel column to be installed. If necessary, the design of the temporary extension rod and the design of the temporary extension rod should be considered comprehensively, and it should be ensured that the lifting weight to be rotated is within the rated lifting range of the lifting equipment. In the present invention, the first steel column is the installed steel column or the steel column foot and the second steel column is the steel column to be installed.
[0045] When the actual weight of the second steel column exceeds the rated lifting capacity of the hoisting equipment by a small amount, it is not necessary...
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The invention discloses a rotary hoisting in-place welding and fixed installing process for box-type steel columns of a fabricated building. The rotary hoisting in-place welding and fixed installing process comprises the following steps that (a), construction preparing is conducted; (b), the actual center of gravity of a member to be rotatably hoisted is determined; (c), a rotary hoisting device is installed; (d), a temporary fixing device is installed; (e), a first welding cushion plate is installed, and second welding cushion plates and a third welding cushion plate are temporarily placed in place; (f), a second steel column is horizontally hoisted; (g), rotary hoisting is tested; (h), rotary hoisting is conducted normally; (i), the second steel column and a first steel column are fixed temporarily; (j), the second welding cushion plates and the third welding cushion plate are installed in place; and (k) the first steel column and the second steel column are installed and fixed permanently. The mechanical efficiency of lifting equipment can be fully given play; the requirement of the welding process is met; it is guaranteed that when the second steel column is hoisted rotatably, collision does not occur, and the in-place step is smooth, the condition is created for permanent installing and fixing of the second steel column and the first steel column, meanwhile, reusing can be achieved, and the application range is wide.
Description
technical field [0001] The invention belongs to the technical field of on-site construction and installation of prefabricated building components, and in particular relates to a process for rotating, hoisting, in-place welding, and fixing installation of a box-shaped steel column of a prefabricated building. Background technique [0002] Steel structure buildings not only have the characteristics of green, energy saving, and environmental protection, but also are easy to realize industrialized manufacturing and on-site assembly construction. Prefabricated building steel structure is mainly used in steel structure residences, steel structure office buildings and other buildings. [0003] At present, the on-site construction and installation of prefabricated building components basically adopts the method of one-time lifting and direct installation of tower cranes and mobile lifting equipment. This requires that the rated lifting performance parameters of tower cranes and mob...
Claims
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IPC IPC(8): E04G21/14E04G21/16
CPCE04G21/14E04G21/142E04G21/165
Inventor 袁国平蒋永扬何海张可王俊杰
Owner 浙江中南绿建科技集团有限公司