A connector capable of enhancing the joint stability of steel pipe concrete columns
A technology for CFST column and stability, applied in the direction of columns, pillars, piers, etc., can solve the problems affecting the safety and loosening of CFST, and achieve the effect of high practical value and simple structure
Active Publication Date: 2020-11-13
WEST ANHUI UNIV
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Problems solved by technology
[0004] However, when CFST columns are used, in view of certain requirements for the slenderness ratio of CFST columns, according to the "Concrete-filled Steel Tube Specifications" GB50936-2014, the slenderness ratio of frame columns shall not exceed 80, so in order to facilitate transportation and installation, CFST Columns generally do not have too long a structure. When concrete-filled steel tube columns are used in some specific places, multiple concrete-filled steel tube columns need to be connected longitudinally. During the connection process, there will be joints. After the steel tube concrete columns are installed, the joints will continue to be affected. The force in the horizontal direction, the connectors at the joints may loosen in this case, which will affect the safety of CFST in use
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[0025] The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.
[0026] Embodiments of the present patent are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are only used for explaining the patent, and should not be construed as limiting the patent.
[0027] In the description of this patent, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this patent and simplifying the des...
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The invention provides a connector capable of enhancing the stability of the joints of concrete filled steel pipe columns, which belongs to the technical field of structural engineering. The buffer mechanism includes a lifting track, a connecting rod, a lifting shaft and a spring group. Open slot, the connecting rod is movably installed on the upper end of the lifting shaft, the lifting shaft is movably installed inside the lifting track, the spring group is located inside the lifting track, the upper end of the spring group is connected to the lower end of the lifting shaft and the bottom end of the lifting track, this The invention has a simple structure and high practical value. By providing a buffer mechanism inside the connector, when the connector is connected to the steel tube concrete column, the horizontal force generated by the steel tube concrete column can be partially transformed into a vertical downward force. The force plays a certain role in reducing the load on the connecting piece; and a spring set is arranged in the buffer mechanism to convert the vertical downward force into a spring force, which can also play a role in reducing the load on the connecting piece.
Description
technical field [0001] The invention relates to a steel pipe connector, in particular to a connector capable of enhancing the joint stability of a steel pipe concrete column. Background technique [0002] Concrete-filled steel pipe refers to the structural member formed by filling concrete in the steel pipe, and the steel pipe and its core concrete can bear the external load together. . [0003] The advantages of CFST are: 1. High bearing capacity, good ductility, and superior seismic performance; 2. Convenient construction and greatly shortened construction period; 3. It is beneficial to the fire resistance and fire prevention of steel pipes; 4. The corrosion resistance is better than steel structures. [0004] However, when CFST columns are used, in view of certain requirements for the slenderness ratio of CFST columns, according to the "Concrete-filled Steel Tube Specifications" GB50936-2014, the slenderness ratio of frame columns shall not exceed 80, so in order to faci...
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IPC IPC(8): E04B1/58E04C3/34
CPCE04B1/185E04C3/34
Inventor 夏松覃爱民葛清蕴夏青秦海波张静李明
Owner WEST ANHUI UNIV