Prefabricated self-resetting energy consumption combined column structure
Technical Field
The invention relates to the technical field of anti-seismic and shock-absorbing and isolating devices, in particular to a prefabricated self-resetting energy-consumption combined column structure.
Background
The cast-in-situ concrete column is widely used for a long time, but the cast-in-situ concrete construction has the outstanding problems of more required site labor force, high risk of casualties, complex working procedures, difficult quality control, resource waste, serious environmental pollution and the like. The assembly column is prefabricated and transported to a construction site for quick assembly through a quality-controllable factory, so that the assembly column has the advantages of high construction speed, simple construction procedures, small environmental pollution and the like, and overcomes the defects of the cast-in-situ concrete column.
The patent application of publication No. CN118273484A discloses a concrete assembly column and an assembly method thereof, wherein the concrete assembly column comprises a prefabricated column body and a column body reinforcing steel bar, a grouting overflow hole is formed in the lower end of the prefabricated column body, concrete is poured into a reinforcing steel bar sleeve through the grouting overflow hole, the grouting overflow hole is plugged after the grouting is completed, and the assembly of the concrete assembly column is completed, but the assembly column still has a cast-in-situ construction part, the construction quality is highly dependent on the environment and personnel of a construction site, and the connection quality and the construction convenience are still difficult to ensure to a certain extent.
The patent application of publication No. CN114482405A discloses a UHPC-steel tube confined concrete assembly column and a construction method thereof, wherein the assembly column comprises a spliced column formed by vertically overlapping and splicing a plurality of hollow prefabricated UHPC-steel sleeve segments and cast-in-place concrete poured in the middle of the spliced column, and the upper and lower adjacent prefabricated UHPC-steel sleeve segments are connected together through a connecting component, but the assembly column consumes energy under the action of an earthquake or through plastic hinges of the column, when the earthquake with higher intensity is encountered, the plastic hinges are seriously damaged and can not be repaired, so that the assembly column can only be disassembled and reconstructed, and the economic cost is higher.
In view of the above, the invention provides a prefabricated self-resetting energy-consumption combined column structure which can be assembled and connected quickly on a construction site without concrete grouting and ensures connection quality.
Disclosure of Invention
The invention aims to provide a prefabricated self-resetting energy consumption combined column structure, which can be quickly assembled and connected without concrete grouting on a construction site, can be quickly put into use, ensures the connection quality while realizing quick assembly, and greatly saves the assembly economy and time cost.
The invention provides a prefabricated self-resetting energy consumption combined column structure which comprises an upper column body and a lower column body, wherein two parallel connection sliding rails are arranged at the bottom of the upper column body, a sliding groove is arranged between the connection sliding rails, a mounting hole communicated with the sliding groove is formed in the tail end of the sliding groove, a self-resetting buckle capable of sliding along the sliding groove and being in fit and clamping connection with the mounting hole is arranged at the top of the lower column body, a limiting block is in fit and sliding installation with the connection sliding rails, and the top end and the bottom end of the limiting block are respectively detachably connected with the upper column body and the lower column body through fasteners.
Preferably, an upper column bottom cap is arranged at the bottom of the upper column, an upper column top cap is arranged at the top of the upper column, and the connecting sliding rail is arranged at the bottom of the upper column bottom cap.
Preferably, a lower column top cap is arranged at the top of the lower column, a lower column bottom cap is arranged at the bottom of the lower column, and the self-resetting buckle is arranged at the top of the lower column top cap.
Preferably, the self-resetting buckle comprises a fixed sleeve and an upward sliding cap which is slidably mounted at the top of the fixed sleeve, a bolt extending into the fixed sleeve is arranged in the upward sliding cap, a reset spring is sleeved outside the bolt, the upward sliding cap comprises an inverted conical section and a cylindrical section connected to the bottom end of the inverted conical section, the diameter of the cylindrical section is smaller than the width of the sliding chute, and the diameter of the conical section is larger than the width of the sliding chute.
Preferably, a protrusion is provided on the connecting slide rail, and when the self-resetting buckle passes through the slide groove, the protrusion can jack up the upper slide cap.
Preferably, an inter-column damper is further arranged between the bottom end of the upper column body and the top end of the lower column body, and the inter-column damper is any one of a viscous damper, a viscoelastic damper, a metal damper and a friction damper.
Preferably, the upper column body comprises an upper column inner steel pipe and an upper column outer steel pipe which are concentrically arranged, filled concrete is poured between the upper column inner steel pipe and the upper column outer steel pipe, the lower column body comprises a lower column inner steel pipe and a lower column outer steel pipe which are concentrically arranged, filled concrete is poured between the lower column inner steel pipe and the lower column outer steel pipe, and the filled concrete is any one of steel fiber concrete, polyethylene fiber concrete, glass fiber concrete, polyethylene fiber concrete and high-ductility high-strength concrete.
Preferably, the inside of last cylinder with down the cylinder still is provided with the prestressing tendons, the prestressing tendons passes in proper order steel pipe in the last post with steel pipe in the lower post, the both ends of prestressing tendons respectively with go up post top cap with lower post end cap anchor is connected, the prestressing tendons is the arbitrary one of high strength steel bar, high strength cable, carbon fiber muscle, glass fiber muscle, aramid fiber muscle, stainless steel bar, galvanized steel bar and high strength steel wire.
Preferably, the upper column top cap, the upper column bottom cap, the lower column top cap and the lower column bottom cap are all made of high-strength metal materials, the high-strength metal materials are any one of high-strength steel, titanium alloy, high-strength aluminum alloy and high-strength magnesium alloy, and the upper column inner steel tube, the upper column outer steel tube, the lower column inner steel tube and the lower column outer steel tube are all made of any one of low-carbon steel, high-strength steel and stainless steel.
Preferably, an upper mounting screw hole is formed in the side face of the bottom end of the upper column body, a lower mounting screw hole is formed in the side face of the top end of the lower column body, and two ends of the limiting block are respectively mounted in an adaptive mode through screws and the upper mounting screw hole and the lower mounting screw hole.
Compared with the prior art, the invention has the following beneficial effects:
1. The quick and stable installation of the column is realized by the quick splicing of the self-resetting buckle at the bottom of the upper column and the top of the lower column, the construction is simple and convenient, the components are all prefabricated by factories and are quickly assembled on the construction site, the connection quality and the safety are ensured, and meanwhile, the material waste and the environmental pollution are reduced, so that the construction method has good economical efficiency;
2. the upper column body and the lower column body are further connected and fixed through the limiting blocks, so that the stability of connection is guaranteed, the positions of the self-resetting buckle after being installed can be limited through the limiting blocks, the structure is prevented from being damaged or the positions of the self-resetting buckle are prevented from being cheap, the splicing quality is guaranteed, and the self-resetting buckle has certain energy consumption capacity, so that the structure has good anti-seismic performance;
3. The bridge pier is quickly assembled in a non-wetting operation mode through splicing between the upper cylinder end connecting sliding rail and the lower cylinder end self-resetting buckle and mounting limiting blocks, good self-resetting capability and energy consumption capability can be achieved under the action of an earthquake, and normal use functions of the bridge pier can be recovered without repair or slightly repair after the earthquake.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a disassembled structure view of a composite column structure of the present invention in an unassembled state;
FIG. 2 is a perspective view of the assembled integrated structure of the composite column structure of the present invention;
FIG. 3 is a schematic view of a self-resetting buckle in a composite column and a process for installing the self-resetting buckle and a connecting sliding rail in a matched manner;
FIG. 4 is a cross-sectional view of the upper and lower columns of the composite column structure of the present invention, taken in a transverse direction;
FIG. 5 is a schematic view of the assembly process of the composite column structure of the present invention;
reference numerals illustrate:
The concrete column comprises an upper column body, an upper column inner steel pipe, an upper column outer steel pipe, a 101 connecting slide rail, a 102 sliding chute, a 103 mounting hole, a 104 upper column bottom cap, a 105 upper column top cap, a 106 protruding part, a 107 upper mounting screw hole, a 2 lower column body, a 21 lower column inner steel pipe, a 22 lower column outer steel pipe, a 201 self-resetting buckle, a 2011 fixing sleeve, a 2012 upper sliding cap, a 2013 stud, a 2014 reset spring, a 202 lower column top cap, a 203 lower column bottom cap, a 204 lower mounting screw hole, a 3 limiting block, a 4 inter-column damper, a5 filling concrete and a 6 prestressed rib.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The terms "mounted," "connected," "coupled," and "connected" are used in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, or indirectly connected via an intermediate medium, or may be in communication with the interior of two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-5, the invention provides a prefabricated self-resetting energy consumption combined column structure, which comprises an upper column body 1 and a lower column body 2, wherein two parallel connection sliding rails 101 are arranged at the bottom of the upper column body 1, sliding grooves 102 are arranged between the connection sliding rails 101, mounting holes 103 communicated with the sliding grooves 102 are formed in the tail ends of the sliding grooves 102, self-resetting buckles 201 capable of sliding along the sliding grooves 102 and being in fit and clamping connection with the mounting holes 103 are formed in the top of the lower column body 2, limiting blocks 3 are in fit and sliding installation with the connection sliding rails 101, and are used for further limiting the positions of the self-resetting buckles 201 after being clamped and connected with the top ends of the limiting blocks 3 and the bottom ends of the upper column body 1 and the top ends of the lower column body 2 respectively through fasteners in a detachable mode.
In this embodiment, the bottom of the upper column 1 is provided with an upper column bottom cap 104, the top of the upper column 104 is provided with an upper column top cap 105, the connecting slide rail 101 is arranged at the bottom of the upper column bottom cap 104, the two connecting slide rails 101 are arranged in parallel, the axis of the connecting slide rail 101 is perpendicular to the axis of the upper column 1, the top of the connecting slide rail 101 is provided with an open slot for installing the limiting block 3, one ends of the two connecting slide rails 101 are completely separated by the sliding slot 102, the other ends of the two connecting slide rails 101 are integrally connected at one side, far away from the sliding slot 102, of the mounting hole 103, a protrusion 106 is arranged at the middle part of the connecting slide rail 101, the middle of the protrusion 106 is high, the two connecting slide rails are continuously lowered towards two sides, and the surface is a smooth curved surface.
The top of lower cylinder 2 is provided with lower post top cap 202, and the bottom of lower cylinder 2 is provided with lower post bottom cap 203, installs in the top of lower post top cap 202 from reset buckle 201. The self-resetting buckle 201 comprises a fixed sleeve 2011 and an upper sliding cap 2012 slidingly mounted on the top of the fixed sleeve 2011, wherein the fixed sleeve 2011 is vertically connected with the top of a lower column top cap 202, a vertical cavity is formed in the fixed sleeve, a bolt 2013 extending into the cavity in the fixed sleeve 2011 is arranged in the upper sliding cap 2012, a reset spring 2014 is sleeved outside the bolt 2013, the upper sliding cap 2012 comprises an inverted conical section and a cylindrical section connected to the bottom end of the inverted conical section, the diameter of the cylindrical section is smaller than the width of the sliding chute 102, and the diameter of the inverted conical section is larger than the width of the sliding chute 102. When the self-resetting buckle 201 is assembled with the connecting sliding rail 101 through the sliding groove 102, the cylindrical section moves along the sliding groove 102, the bulge 106 is abutted against the inverted conical section on one side of the upper sliding cap 2012, so that the reset spring 2014 is compressed under the action of the pulling force of the end face of the bolt 2013, the upper sliding cap 2012 can be jacked up, when the upper sliding cap 2012 passes through the highest point of the bulge 106, the bulge 106 is abutted against the inverted conical section on the other side of the upper sliding cap 2012, the reset spring 2014 is gradually reset, in the process, the upper sliding cap 2012 falls back to the original position, the self-resetting buckle 201 slides into the mounting hole 103, the self-resetting buckle 201 is assembled with the connecting sliding rail 101, and then the upper column 1 and the lower column 2 are assembled and connected.
The bottom profile of stopper 3 and the surface form looks adaptation of connecting slide rail 101 can stretch into its top's open slot along the top of connecting slide rail 101, and the right side bottom of stopper 3 can be pressed at the top and the left side of self-resetting buckle 201, is prescribing a limit to its position after the assembly. The bottom side of the upper column body 1 is provided with an upper mounting screw hole 107, the top side of the lower column body 2 is provided with a lower mounting screw hole 204, and two ends of the limiting block 3 are respectively mounted in an adaptive manner with the upper mounting screw hole 107 and the lower mounting screw hole 204 through screws. Through the limiting block 3, the connecting quality of the upper column body 1 and the lower column body 2 after being assembled is more stable, the connection can be quickly assembled and realized without concrete grouting on a construction site, the using function of the upper column body 1 can be quickly restored without repair or slightly repaired under the action of an earthquake, the upper column body and the lower column body can be quickly put into use, the connecting quality is ensured while the quick assembly is realized, and the economic and time cost for post-earthquake repair is greatly saved.
In the present embodiment, the upper column top cap 105, the upper column bottom cap 104, the lower column top cap 202, and the lower column bottom cap 203 are each made of a high-strength metal material, which is any one of high-strength steel, titanium alloy, high-strength aluminum alloy, and high-strength magnesium alloy.
In this embodiment, an inter-column damper 4 is further disposed between the bottom end of the upper column 1 and the top end of the lower column 2, two damper mounting holes disposed opposite to each other are disposed on the sides of the upper column bottom cap 104 and the lower column top cap 202 away from the stopper 3, two ends of the inter-column damper 4 are mounted in cooperation with the damper mounting holes, and the inter-column damper 4 is any one of a viscous damper, a viscoelastic damper, a metal damper and a friction damper. The inter-column damper 4 can help structure consume energy, so that the displacement response and acceleration response of the structure under the action of earthquake are reduced, and the column body and the structure have good earthquake resistance.
As shown in fig. 4, in the present embodiment, the upper column 1 includes an upper column inner steel pipe 11 and an upper column outer steel pipe 12 which are concentrically arranged, a filled concrete 5 is poured between the upper column inner steel pipe 11 and the upper column outer steel pipe 12, the lower column 2 includes a lower column inner steel pipe 21 and a lower column outer steel pipe 22 which are concentrically arranged, a filled concrete 5 is poured between the lower column inner steel pipe 21 and the lower column outer steel pipe 22, and the upper column inner steel pipe 11, the upper column outer steel pipe 12, the lower column inner steel pipe 21 and the lower column outer steel pipe 22 are made of any one of low carbon steel, high strength steel and stainless steel, and the filled concrete 5 is any one of steel fiber concrete, polyethylene fiber concrete, glass fiber concrete, polyethylene fiber concrete and high ductility high strength concrete.
In this embodiment, the inside of the upper column 1 and the lower column 2 is further provided with a prestressed tendon 6, the prestressed tendon 6 sequentially passes through the upper column inner steel pipe 11 and the lower column inner steel pipe 21, two ends of the prestressed tendon 6 are respectively connected with the upper column top cap 105 and the lower column bottom cap 203 in an anchoring manner, the upper column bottom cap 104 and the lower column top cap 202 are reserved with a hole channel for the prestressed tendon 6 to pass through, and the prestressed tendon 6 is any one of a high-strength steel bar, a high-strength steel cable, a carbon fiber tendon, a glass fiber tendon, an aramid fiber tendon, a stainless steel bar, a galvanized steel bar and a high-strength steel wire. The upper column 1 and the lower column 2 can be provided with tensioning force through the prestressing tendons 6, and the prestressing force is applied.
As shown in fig. 5, the construction method of the composite column structure of the present embodiment includes the steps of:
firstly, manufacturing an upper column 1, a lower column 2, a limiting block 3, a prestressed rib 6 and an inter-column damper 4 in a factory;
Secondly, vertically placing the lower column body 2 at an installation position, vertically hoisting the upper column body 1 to the top of the lower column body 2, mutually splicing the self-resetting buckle 201 with the connecting sliding rail 101 after sliding along the sliding groove 102, and coaxially splicing the upper column body 1 and the lower column body 2;
Then, the limiting block 3 is plugged into an opening groove above the connecting sliding rail 101, and the limiting block 3 is fixedly connected with an upper mounting screw hole 107 at the outer side of the upper column bottom cap 104 and a lower mounting screw hole 204 at the outer side of the lower column top cap 202 through bolts;
next, the two ends of the inter-column damper 4 are aligned with two oppositely arranged damper mounting holes on the side surfaces of the upper column bottom cap 104 and the lower column top cap 202, and fixed by bolts;
finally, the prestressing tendons 6 are tensioned from the upper column top cap 105 to the center of the lower column bottom cap 203 through a post-tensioning method, prestressing is applied, and two ends of the prestressing tendons 6 are connected with the upper column top cap 105 and the lower column bottom cap 203 in an anchoring manner, so that the construction of the structure is completed.
It should be noted that the above embodiments are merely for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present invention.