CN110820546A - Concrete column high anti-seismic performance assembled connection structure - Google Patents
Concrete column high anti-seismic performance assembled connection structure Download PDFInfo
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- CN110820546A CN110820546A CN201911150699.9A CN201911150699A CN110820546A CN 110820546 A CN110820546 A CN 110820546A CN 201911150699 A CN201911150699 A CN 201911150699A CN 110820546 A CN110820546 A CN 110820546A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/025—Structures with concrete columns
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- Business, Economics & Management (AREA)
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a concrete column high anti-seismic performance assembled connecting structure, which comprises an upper section and a lower section, wherein the upper section and the lower section are mutually sleeved and fixedly connected through a flange structure in a sleeve mode, the invention adopts a structure that concave-convex insertion is adopted, the sleeves are mutually sleeved and combined with flange connection, joint surfaces connected by an upper main body and a lower main body are respectively positioned at three parts along the height of a column, the phenomenon that weak joint parts are concentrated at the same cross section is avoided, so that the pier can bear changeable loads including pressure, shearing force, bending moment and the like, has good anti-seismic performance, is suitable for piers, particularly large bridges, can be constructed in a factory prefabrication-site assembly mode, greatly shortens the construction period, reduces the construction cost, and the assembly mode ensures that the whole pier has good adaptability to various loads and prolongs the service life of the pier, has obvious technical and economic comprehensive benefits.
Description
Technical Field
The invention belongs to the field of building structures and bridge engineering, and particularly relates to a concrete column high-seismic-resistance assembled connecting structure.
Background
The factory prefabricated component segments are connected in an assembling mode on the spot to form an integral structure, and the factory prefabricated component segments are an inevitable development trend of the civil engineering structure at present.
The column is an indispensable main bearing structure of a building structure and has the function of transferring the load of an upper structure to a foundation, and a reinforced concrete column formed by cast-in-place construction generally has enough bearing capacity and better anti-seismic performance, so that columns in the existing building structure, particularly bridge piers, basically adopt the reinforced concrete column of cast-in-place construction.
However, the reinforced concrete column constructed in a cast-in-place way has three problems: firstly, the construction period on site is long and the efficiency is low; secondly, the on-site construction quality is difficult to ensure; and thirdly, the interference or damage influence of site construction on the environment is large.
For this reason, various approaches have been made to the assembly type construction method and the connection structure of concrete columns, and the connection structure of concrete columns in the prior art (including the issued patent) can be classified into three major categories: the main reinforcement of the upper column and the lower column is connected on site, and concrete is poured and combined in a section, so that the main reinforcement transmission reliability is ensured, the problems that the main reinforcement connection and the concrete pouring are implemented under the condition that a heavy section is hoisted are solved, the construction period is long, the risk is high, the quality is difficult to control, and the original purpose of assembly type construction is against; the middle part of the column joint is provided with a steel sleeve or a concrete tenon joint, the upper section main steel bar and the lower section main steel bar which are arranged along the periphery of the column are in lap joint, and then the concrete or the bonding material of the combined section is poured or poured, so that the construction method has the advantages that the long-time operation construction under the condition of hoisting a heavy section is avoided, the problems of long construction period, high risk and difficult quality control of the poured or poured concrete or bonding material of the combined section are solved, and the key is that the main steel bars in the column adopt lap joint connection in the same section to greatly weaken the anti-seismic; the steel sleeve is arranged on the outer surface of the lower section column joint, the upper section of concrete steel sleeve is internally provided with the upper section of main steel bars arranged along the periphery of the column to form the lap joint length, and then the bonding material of the bonding section is poured to form the integral concrete column.
In summary, the connection structure of the existing fabricated concrete column has two defects: firstly, the connection of upper and lower prefabricated section columns must be realized by adopting cast-in-place or pouring, and secondly, the combined section of the column is difficult to resist the action of high-intensity earthquake.
Disclosure of Invention
In view of the above, the invention aims to provide a concrete column high-earthquake-resistance assembled connecting structure, which adopts a mode of prefabricating segments in a factory, inserting and assembling on site and connecting a steel sleeve flange plate to complete the concrete column on site, and has the advantages of simple, convenient and quick construction, low cost and excellent performance.
The concrete column high-seismic-performance assembled connecting structure comprises an upper section and a lower section, wherein the upper section and the lower section are mutually nested in a casing pipe mode and are fixedly connected through a flange structure;
concave-convex embedded splicing is formed between the lower end face of the upper section and the upper end face of the lower section.
Further, the outer surface of the upper section is fixedly provided with a sleeve I, the outer surface of the lower section is fixedly provided with a sleeve II, the sleeve I is provided with a flange I, the sleeve II is provided with a flange II, the sleeve I and the sleeve II are mutually nested along the axial direction and form fixed connection through the flange I and the flange II.
Furthermore, an upward concave insertion groove is formed in the lower end face of the upper section, an upward convex insertion tenon is formed in the upper end face of the lower section, and the convex insertion tenon is upwards inserted into the concave insertion groove so that insertion fit is formed between the upper section and the lower section.
Furthermore, sleeve I endotheca is in sleeve II, II upper ends of sleeve are fixed and are set up ring flange II, sleeve I is at the fixed ring flange I that sets up in the settlement position, sleeve I from top to bottom stretches into and endotheca behind sleeve II, ring flange II and ring flange I butt joint and fixed connection.
Furthermore, ring flange II and sleeve II integrated into one piece, ring flange I integrated into one piece in sleeve I and be close to I upper portion of sleeve, form with ring flange I integrated into one piece and extend upward and still form the enhancement pipeline section.
Further, the inner edge of the inner side of the upper end opening of the sleeve II is provided with an inner chamfer, and the outer edge of the lower end of the sleeve I is provided with an outer chamfer.
Furthermore, last subsection and lower subsection are prefabricated by concrete placement and take shape, and the main muscle I of the vertical setting of last subsection corresponds and welds in I internal surface of sleeve pipe, and the main muscle II of the vertical setting of lower subsection corresponds and welds in II internal surfaces of sleeve pipe.
Furthermore, last subsection and lower subsection are prefabricated by concrete placement and take shape, and the main muscle I of last subsection is vertical setting and welds in I internal surface of sleeve pipe, and the main muscle II of lower subsection is vertical setting and welds in II internal surfaces of sleeve pipe.
Furthermore, a reinforcing rib I is formed between the outer surface of the reinforcing pipe section and the upper surface of the flange plate I, and the reinforcing rib I is a plurality of vertical stiffening plates which are uniformly distributed along the circumferential direction; and a reinforcing rib II is formed between the outer surface of the sleeve II and the lower surface of the flange plate II, and the reinforcing rib II is a plurality of vertical stiffening plates uniformly distributed along the periphery of the column.
Further, structural adhesive is coated between the nesting parts of the sleeve I and the sleeve II, between the lower end face of the upper section and the upper end face of the lower section, and between the concave insertion groove and the convex insertion tenon.
Furthermore, the convex inserting tenon is similar to a frustum structure, and the concave inserting groove is a frustum-shaped groove which is adaptive to the convex inserting tenon and can form accommodation for the convex inserting tenon.
The invention has the beneficial effects that: according to the concrete column high-earthquake-resistance assembled connecting structure, the force transfer performance of any part of the connecting structure section under repeated load (earthquake) is sufficiently ensured: the nested steel pipes connected by the flange plate bear tensile force, and the concrete in the sleeve constraint can transfer pressure even if the concrete is damaged and cracked, so that the steel pipe has good anti-seismic performance; the structure combines the bonding glue of the joint of the section under the action of a low-intensity earthquake to be lossless, and the working performance of a normal column without cracks is kept; the adhesive glue of the transverse joint of the concrete can crack under the medium-intensity earthquake, and the working performance of the normal reinforced concrete column is maintained under the action of alternating bending moment caused by the earthquake under the tension of the peripheral nested steel pipe combined by the adhesive glue and the compression of the concrete in the pipe; even if the adhesive of the peripherally embedded pipe fails under a high-intensity earthquake, the connecting bolts of the flange plates are still pulled and the concrete in the pipe is pressed to bear the alternating bending moment effect caused by the earthquake, so that the bearing capacity of the column is maintained without being damaged.
Therefore, the assembled concrete column has incomparable seismic performance compared with the prior art.
The invention adopts the insertion connection of the nested steel pipes with flanges pre-embedded at the end parts of the upper and lower sections: the nested steel pipes are convenient for ensuring the installation precision of on-site plug-in connection, and the flange plate of the sleeve structure (steel pipe) strengthens the deformation resistance of the prefabricated sections in the transportation and installation stages; the inner edge of the upper port of the outer sleeve is provided with a chamfer, the outer edge of the lower port of the inner sleeve is provided with a chamfer, and the inner part of the outer sleeve is connected with the reinforced concrete convex-concave tenon in a small-end-up manner, so that the guide and guide convenience is provided for field installation and insertion, and the difficulty of high-precision alignment and insertion installation is obviously reduced.
The invention has the advantages of gluing the interface, inserting the interface into place, bolting the flange in the construction process, no need of pouring concrete or adhesive glue again after the upper section and the lower section are connected into place, simple and quick field construction, reliable connection quality, clear structural stress, and incomparable construction simplicity and quality reliability of the existing assembly type concrete column technology.
Drawings
The invention is further described below with reference to the figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a schematic view of a solid structure according to the present invention;
FIG. 5 is a schematic structural view of the flat structural column of the present invention;
FIG. 6 is a cross-sectional view taken along line C-C of FIG. 5;
fig. 7 is a cross-sectional view taken along line D-D of fig. 5.
Detailed Description
FIG. 1 is a schematic structural view of a first embodiment of the present invention, FIG. 2 is a sectional view taken along line A-A of FIG. 1, and FIG. 3 is a sectional view taken along line B-B of FIG. 1; the composite beam formed by the concrete column high-earthquake-resistance assembled connection structure in the embodiment comprises an upper section 1 and a lower section 2, wherein the upper section 1 and the lower section 2 are both prefabricated concrete columns, and steel bars need to be arranged inside the prefabricated concrete columns, which is not described herein again; the upper section 1 and the lower section 2 are mutually nested in a sleeve mode and fixedly connected through a flange structure; the casing pipes are respectively fixedly provided with the casing pipes at the upper section and the lower section, and nested connection is formed between the casing pipes at the upper section and the lower section, which is not described again;
concave-convex embedded splicing is formed between the lower end face of the upper section 1 and the upper end face of the lower section 2;
the concrete in the connecting section can bear the repeated bending moment effect generated by high-intensity earthquake under the constraint condition of the outer sleeve steel pipe, and the reinforced concrete convex-concave tenon connection is arranged in the concrete, so that the situation that weak connection is positioned on the same cross section is avoided, and the method is applicable to the fabricated concrete column in a high-intensity earthquake area.
In the embodiment, a sleeve I3 is fixedly arranged on the outer surface of the upper section 1, a sleeve II 4 is fixedly arranged on the outer surface of the lower section 2, the sleeve I3 is provided with a flange I5, the sleeve II 4 is provided with a flange II 6, the sleeve I3 and the sleeve II 4 are mutually nested in the axial direction and are fixedly connected through the flange I5 and the flange II 6; the sleeve I3 and the sleeve II 4 are steel sleeves in the embodiment, are simple to manufacture, and can be welded with the steel bars in the upper section 1 and the lower section 2, so that better connection strength is achieved; in order to achieve mutual nesting between the casing I and the casing II, one of the casings I and II should be formed as an empty pipe section, and the details are not repeated.
In this embodiment, an upward concave insertion groove is formed on the lower end surface of the upper section 1, an upward convex insertion tenon 201 is formed on the upper end surface of the lower section 2, and the convex insertion tenon 201 is inserted into the concave insertion groove (no mark is shown in the figure, and the groove in which the convex insertion tenon 201 is embedded is the concave insertion groove) upward, so that the upper section 1 and the lower section 2 form insertion fit; as shown in the figure, the concave inserting groove is a frustum-shaped groove with a small upper part and a large lower part, and the convex inserting tenon 201 is a frustum-shaped tenon matched with the concave inserting groove; the frustum-shaped structure is different according to different cross sections of the concrete column, is not necessarily a frustum-shaped structure, and is not described again; the cone-shaped structure groove and the cone-shaped structure tenon structure are convenient to assemble and manufacture, and have the effect of reducing vibration impact when resisting earthquake and other external forces, and especially have a good unloading effect on the inclined plane of the cone-shaped structure for vibration with high strength.
In this embodiment, the casing i 3 is sleeved in the casing ii 4, as shown in the figure, since the casing i 3 is sleeved in the casing ii 4, the lower part of the casing ii 4 is fixed on the outer surface of the lower section 2, and the upper part is vacant and used for accommodating and nesting the casing i 3, which is not described herein again; the upper end of the sleeve II 4 is fixedly provided with a flange II 6, the sleeve I3 is fixedly provided with a flange I5 at a set position, and the set position is that the flange II 6 is butted with the flange I5 after the sleeve I3 is nested into the sleeve II 4, so that the details are not repeated; after the sleeve I3 extends into the sleeve II 4 from top to bottom and is sleeved in the sleeve II 4, the flange II 6 and the flange I5 are butted and fixedly connected; as shown in the figure, the flange plate II is in butt joint with the flange plate I and is fixedly connected with the flange plate I through bolts, the structure is simple, and the dismounting and the connection are convenient.
In the embodiment, the flange plate II 6 and the sleeve II 4 are integrally formed, the flange plate I5 is integrally formed on the sleeve I3 and close to the upper part of the sleeve I3, the flange plate I5 and the flange plate I5 are integrally formed and extend upwards to further form the reinforced pipe section 301, the reinforced pipe section 301 has a good supporting effect, and meanwhile, aiming at flange connection, the flange structure is extended to support an upper section, so that sudden stress change is avoided, and a good reinforcing effect is achieved; as shown in the figure, the reinforced pipe section and the casing II 4 are positioned near the same diameter parameter, the overall structure and the size are coordinated and consistent, the stress distribution is uniform and consistent, and the bearing and shock resistance are high.
In the embodiment, the inner edge of the inner side of the upper end opening of the sleeve II 4 is provided with the inner chamfer, the flange plate of the sleeve structure (steel pipe) strengthens the deformation resistance of the prefabricated segment in the transportation and installation stages, the outer edge of the lower end of the sleeve I3 is provided with the outer chamfer, and the outer chamfer is matched with the frustum-shaped structural reinforced concrete convex-concave tenon connection which is small in size and large in size, so that the guide and guide convenience is provided for field installation and insertion, and the difficulty of high-precision contraposition insertion and installation is obviously reduced.
In the embodiment, the upper section 1 and the lower section 2 are both formed by pouring and prefabricating concrete, a main rib I7 vertically arranged on the upper section 1 is correspondingly welded on the inner surface of a sleeve I3, a main rib II 8 vertically arranged on the lower section 2 is correspondingly welded on the inner surface of a sleeve II 4, the continuity and the reliability of force transmission of the main ribs are ensured through the nested connection of the upper section and the lower section with embedded steel pipes welded with the main ribs, the concrete of the connecting section is enabled to be under the constraint condition of the outer sleeve steel pipe, the repeated alternating load action generated by a high-intensity earthquake can be resisted, and the assembled concrete column is suitable for an assembled concrete column in a high-intensity earthquake area; the main rib I7 welded with the inner surface of the sleeve I3 and the main rib II 8 welded with the inner surface of the sleeve II 4 refer to main ribs which are close to the outer ring and are adjacent to the corresponding sleeve, and the details are not repeated; the interior of the column is connected by the reinforced concrete convex-concave tenon, so that the joint surfaces of the nested steel pipes and the reinforced concrete convex-concave tenon are respectively positioned at three different parts along the height connecting section of the column, the weak joint parts are prevented from being concentrated at the same section, and the mechanical property of the concrete column is ensured.
In the embodiment, a reinforcing rib I9 is formed between the outer surface of the reinforcing pipe section 301 and the upper surface of the flange plate I5, and the reinforcing rib I9 is a plurality of vertical stiffening plates which are uniformly distributed along the circumferential direction; a reinforcing rib II 10 is formed between the outer surface of the sleeve II 4 and the lower surface of the flange II 6, and the reinforcing rib II 10 is a plurality of vertical stiffening plates uniformly distributed along the periphery of the column; the reinforcing rib I, the flange plate I5 and the reinforcing pipe section 301, and the reinforcing rib II, the flange plate II 6 and the sleeve II 4 can be formed by welding or integral casting, and connection bolts are avoided, so that the details are not repeated; the structure can obviously increase the connection strength between the flange plate and the sleeve body, thereby effectively increasing the integral strength of the connection structure.
In this embodiment, structural adhesive is coated between the nested portions of the casing i 3 and the casing ii 4 (i.e., between the inner surface of the casing ii 4 and the outer surface of the casing i 3 after the casing i 3 is nested in the casing ii 4), between the lower end surface of the upper section 1 and the upper end surface of the lower section 2, and between the concave inserting groove and the convex inserting tenon 201.
In this embodiment, the protruding inserting tenon 201 is similar to a frustum structure, and the recessed inserting groove is a frustum-shaped groove which is adapted to the protruding inserting tenon 201 and can form accommodation for the protruding inserting tenon; as shown in the figure, the cross section of the concrete column formed by the connecting structure can be round, rectangular, oval or oblate (shown in figures 5, 6 and 7), and can be a hollow structure or a solid structure (shown in figure 4), which is not described again.
The invention mainly comprises the following construction steps on site: coating structural adhesive on the combined interface of the upper section and the lower section column; secondly, the upper hoisting section column is accurately inserted into the lower section column until the outer steel sleeve and the inner reinforced concrete convex-concave tenon are closely matched and connected according to the setting, and the interface structure glue is filled and compacted under the action of the self weight of the upper section and automatically extrudes redundant bonding glue; and the three pairs of flange plates I and II are reliably connected by screwing bolts.
Of course, the connection structure principle and the non-pouring construction method of the invention can be suitable for solid or hollow concrete with various section forms.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. The utility model provides a concrete column high anti-seismic performance assembled connection structure which characterized in that: the pipe joint comprises an upper section and a lower section, wherein the upper section and the lower section are nested with each other in a sleeve mode and fixedly connected through a flange structure;
concave-convex embedded splicing is formed between the lower end face of the upper section and the upper end face of the lower section.
2. The concrete column high anti-seismic performance fabricated connection structure of claim 1, wherein: the outer surface of the upper section is fixedly provided with a sleeve I, the outer surface of the lower section is fixedly provided with a sleeve II, the sleeve I is provided with a flange I, the sleeve II is provided with a flange II, the sleeve I and the sleeve II are mutually nested along the axial direction and form fixed connection through the flange I and the flange II.
3. The concrete column high anti-seismic performance fabricated connection structure of claim 2, characterized in that: the lower end surface of the upper section forms an upward concave insertion groove, the upper end surface of the lower section forms an upward convex insertion tenon, and the convex insertion tenon is upwards inserted into the concave insertion groove so that the upper section and the lower section form insertion fit.
4. The concrete column high anti-seismic performance fabricated connection structure of claim 3, wherein: the sleeve I is sleeved in the sleeve II, the upper end of the sleeve II is fixedly provided with a flange plate II, the sleeve I is fixedly provided with the flange plate I at a set position, the sleeve I extends into the sleeve I from top to bottom and is sleeved in the sleeve II, and the flange plate II is butted with the flange plate I and is fixedly connected with the flange plate I.
5. The concrete column high anti-seismic performance fabricated connection structure of claim 4, wherein: the flange II and the sleeve II are integrally formed, the flange I is integrally formed on the sleeve I and close to the upper portion of the sleeve I, and the flange I and the flange II are integrally formed and extend upwards to form a reinforcing pipe section.
6. The concrete column high anti-seismic performance fabricated connection structure of claim 4, wherein: an inner chamfer is arranged at the inner side edge of the upper end opening of the sleeve II, and an outer chamfer is arranged at the outer side edge of the lower end of the sleeve I.
7. The concrete column high anti-seismic performance fabricated connection structure of claim 5, wherein: go up the section and form by concrete placement prefabrication with lower section, the vertical main muscle I that sets up of upper segment corresponds and welds in I internal surface of sleeve pipe, and the vertical main muscle II that sets up of lower section corresponds and welds in II internal surfaces of sleeve pipe.
8. The concrete column high anti-seismic performance fabricated connection structure of claim 5, wherein: a reinforcing rib I is formed between the outer surface of the reinforcing pipe section and the upper surface of the flange plate I, and the reinforcing rib I is a plurality of vertical stiffening plates which are uniformly distributed along the circumferential direction; and a reinforcing rib II is formed between the outer surface of the sleeve II and the lower surface of the flange plate II, and the reinforcing rib II is a plurality of vertical stiffening plates uniformly distributed along the periphery of the column.
9. The concrete column high anti-seismic performance fabricated connection structure of claim 4, wherein: structural adhesives are coated between the nesting parts of the sleeve I and the sleeve II, between the lower end face of the upper section and the upper end face of the lower section, and between the concave insertion groove and the convex insertion tenon.
10. The concrete column high anti-seismic performance fabricated connection structure of claim 3, wherein: the convex inserting tenon is similar to a frustum structure, and the concave inserting groove is a frustum-shaped groove which is adaptive to the convex inserting tenon and can form accommodation for the convex inserting tenon.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111795205A (en) * | 2020-07-22 | 2020-10-20 | 武汉市年华管业有限公司 | Concrete pipeline joint strengthening treatment method |
| CN112609565A (en) * | 2021-01-13 | 2021-04-06 | 安徽六安公路桥梁工程有限公司 | Steel pipe concrete prefabricated bridge pier |
| CN115354755A (en) * | 2022-08-10 | 2022-11-18 | 广州电力设计院有限公司 | Connecting structure and connecting method of foundation and upright post |
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