Stylobate joint of framework column

Abstract

The invention discloses a stylobate joint of a framework column, which comprises an anchor bolt and a shear reinforcement, and is characterized by further comprising a flange, wherein the flange comprises an upper flange piece and a lower flange piece which are stacked and fixedly connected with each other, the lower flange piece is fixed with the top of a base, and the upper flange piece is fixed with the bottom of the framework column. During the construction of the stylobate joint disclosed by the invention, the lower flange piece which is welded with the tension anchor bolt and the shear reinforcement is cast in the top part of the base in advance, and is poured with concrete together with the base of the previous stage, after the concrete of the base reaches the requirement of the design strength, an upper framework column with the stylobate joint is hoisted in place, the anchor bolt is screwed, the periphery of the upper flange piece is welded with the upper surface of the lowerflange piece through fillet welds, so a framework can be hoisted and permanently fixed at once, the subsequent wire stretching and erection can be instantly carried out, and both the construction efficiency and safety are improved.

Description

technical field [0001] The invention relates to a column foot of a steel structure, in particular to a column foot node of a frame column capable of improving construction efficiency and construction safety. Background technique [0002] The column base node of the frame column is the link to realize the internal force transmission between the superstructure and the foundation, and its performance and quality are very important for the entire project. The form of column feet can be simply divided into hinged type and rigid jointed type according to their force transmission characteristics. The former only transmits axial force and shear force, while the latter can also transmit the bending moment from the column body. The shaped column foot can provide rigid restraint to the column body and reduce the lateral deformation of the column body under the action of axial force. In the current substation steel frame design, due to the advantages of the rigid-joint column foot comp...

AI Technical Summary

Problems solved by technology

like figure 1 as well as figure 2 As shown, according to the conventional exposed column base construction process, the anchor bolt 2' is generally pre-embedded in the concrete structure of the base 4', and the shear reinforcement 3' is welded under the steel column bottom plate 1' and then When the steel column is hoisted and installed together, it is necessary to reserve a vacancy in the local area under the steel column bottom plate 1'. After the steel column is positioned and corrected, the secondary grouting is carried out, and the steel column can only be removed after the secondary grouting reaches the design required strength. The precise positioning and erecting system will undoubtedly affect the efficiency of construction

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