Independent node fabricated frame structure and construction method

Abstract

The invention provides an independent node fabricated frame structure and a construction method. The method comprises the steps that the positions of prefabricated nodes are determined and placed, wherein a main beam steel reinforcement framework and a secondary beam steel reinforcement framework are mechanically connected between the prefabricated nodes; a main beam frame and a secondary beam frame are mounted below the main beam steel reinforcement framework and the secondary beam steel reinforcement framework correspondingly; concrete is poured into the main beam frame and the secondary beam frame; floor slabs are laid on a frame defined by the main beam frame and the secondary beam frame, a post-cast strip is reserved between every two adjacent span frame floor slabs, and concrete is cast in situ in the post-cast strips; column steel reinforcement frameworks are mounted on the prefabricated nodes; the column steel reinforcement frameworks are sleeved with column frames; a layer ofprefabricated nodes are mounted on the column steel reinforcement frameworks; and concrete is poured into the column frames, and a frame construction process is completed. According to frame construction, the prefabricated nodes serve as the center, and the construction process of site fabricated building nodes is omitted. The beam frames and the column frames play a role in positioning and serving as formworks, the processes of formwork dismounting and repeated utilization are avoided in construction, and the construction cost is greatly reduced.

Description

technical field [0001] The invention relates to the field of building construction, in particular to an independent node assembled frame structure and a construction method. Background technique [0002] In recent years, with the promotion of policies, prefabricated buildings are gradually becoming the mainstream architectural form. Compared with traditional buildings, prefabricated buildings need to meet higher conditions, and their prefabrication rate, assembly rate, and green construction are currently evaluated. important standard of control. Although the form of prefabricated buildings has been widely used in a large environment, it has obvious advantages and disadvantages. Through an all-round analysis of the shortcomings of current prefabricated buildings, comprehensive solutions can be formulated, which will contribute to the development of prefabricated buildings. The industry played a role in fueling the flames. At present, the main practice of prefabricated buil...

AI Technical Summary

Problems solved by technology

[0003] In addition to the above-mentioned problems, the prefabricated frame structure building has its unique technical problems, which can be summarized as the following five points: (1) The wet construction at the joints of the prefabricated building leads to its lack of integrity, shear performance and earthquake resistance The performance is not ideal, and the overall mechanical performance cannot be guaranteed; (2) The size and length of the exposed steel bars reserved for PC components are different. During the transportation project, the exposed steel bars of the components will be bent or artificially processed into a curved shape for the convenience of transportation. , leading to a decrease in the yield strength of steel bars; (3) the current sleeve grouting method has disadvantages that cannot be ignored, mainly reflected in the fact that there is no effective detection method for the density of the grouting material at the joint of the grouting anchor. A damage test is required, and the structural reinforcement after the damage test will have an impact on safety; (4) Columns and beams do not combine the advantages of cast-in-place, and a large number of prestressed components are used, resulting in single mechanical properties; (5) There is no reference object for actual operation positioning, May result in seams

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