Connecting joint structure of precast concrete column
By setting load-bearing components and stirrup groups at the corners of precast concrete columns, combined with welding and locking components, an integral anchoring structure is formed, which solves the problem of poor sleeve connection strength and improves the load-bearing capacity of precast concrete column connections.
Patent Information
- Application Number
- CN202520206326.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-02-10
AI Technical Summary
In traditional precast concrete column connections, sleeve connections suffer from poor connection strength, including difficulties in inserting reinforcing bars, insufficient anchorage length, severe eccentricity, and inadequate grouting.
The skeleton welding connection method is adopted. By setting load-bearing components and stirrup groups at the four corners of the precast concrete column, combined with cast-in-place components and locking components, an integral anchoring structure is formed. The stress is transferred by welding, which improves the connection strength.
It significantly improves the load-bearing capacity of precast concrete column connections and solves the problem of poor connection strength under the sleeve connection method.
Smart Images
Figure CN223951935U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to building structure technical field, especially relate to a connecting joint structure of prefabricated concrete column. BACKGROUND
[0002] In actual engineering, the traditional prefabricated concrete column-column connection mostly adopts the wet operation connection method such as embedded steel bar cooperation sleeve grouting connection, mortar anchor connection, wherein, the sleeve connection has the problem of non-dense pressure grouting, and the problems such as steel bar can not be inserted into the sleeve, steel bar anchoring length is not enough, eccentricity is serious, grouting strength is insufficient, grouting pressure is not enough, steel bar is partially wrapped, grouting material stress concentration phenomenon, thereby leading to poor connection strength, therefore, we propose a connecting joint structure of prefabricated concrete column to solve the above problems. UTILITY MODEL CONTENTS
[0003] In order to solve the above problems, the utility model provides a connecting joint structure of prefabricated concrete column, and the problem of poor connection strength caused by sleeve connection is solved.
[0004] The utility model discloses a connecting joint structure of prefabricated concrete column, including:
[0005] Pouring space, form between the splicing end of two prefabricated concrete columns to be spliced;
[0006] Two skeletons are arranged on two prefabricated concrete columns to be spliced, the skeleton includes four stress members, and the four stress members are arranged at four corners of the corresponding prefabricated concrete column respectively, and the first end of the stress member is embedded in the corresponding prefabricated concrete column, and the second end of the stress member extends outward to the pouring space, and the stress members on two skeletons are connected one by one;
[0007] Two stirrup groups are arranged on two skeletons, the stirrup group includes a plurality of first stirrups arranged along the height direction of the second end of the stress member of the corresponding skeleton, and each first stirrup surrounds the corresponding four stress members;And
[0008] Cast-in-place piece is formed after pouring concrete in the pouring space, and all stress members, all first stirrups and two prefabricated concrete columns to be spliced are anchored into a whole through the cast-in-place piece.
[0009] The further improvement of the connecting joint structure of prefabricated concrete column is that four locking members are arranged for fixing two stress members of each pair.
[0010] The further improvement of the utility model relates to a connecting joint structure of a prefabricated concrete column, and the locking piece comprises two ear plates and two connecting plates, the two ear plates are respectively fixed to the outer portions of the second end portions of the two force receiving pieces, the two connecting plates are respectively connected to the two ear plates, the locking piece further comprises two fixing pieces, and the two ends of the connecting plate are respectively fixed to the corresponding ear plates.
[0011] The further improvement of the utility model relates to a connecting joint structure of a prefabricated concrete column, and the fixing piece comprises a bolt, a through hole penetrating through the thickness direction of the ear plate and a threaded hole penetrating through the thickness direction of the connecting plate, the bolt penetrates through the through hole and is inserted into the threaded hole, so that the ear plate and the connecting plate are fixed.
[0012] The further improvement of the utility model relates to a connecting joint structure of a prefabricated concrete column, and the hoop group further comprises a plurality of second hoops which are arranged along the height direction of the first end portion of the force receiving piece of the corresponding framework and are spaced apart, and each second hoop surrounds the corresponding four force receiving pieces and is pre-buried in the corresponding prefabricated concrete column.
[0013] Compared with the prior art, the utility model has the beneficial effects as follows:
[0014] The utility model discloses a connecting joint structure of a prefabricated concrete column, which is connected by welding the spliced force receiving pieces, realizes direct and effective transmission of framework stress, and has a remarkable improvement on the bearing capacity of the prefabricated concrete column-column joint connection compared with the traditional prefabricated concrete column reinforcing sleeve connecting mode. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 The overall structure schematic diagram of the utility model is shown.
[0016] Figure 2 The A-A sectional view schematic diagram of the utility model is shown. Figure 1
[0017] In the drawing: 1, prefabricated concrete column; 2, force receiving piece; 3, second hoop; 4, first hoop; 5, ear plate; 6, bolt; 7, connecting plate; 8, pouring space. DETAILED DESCRIPTION
[0018] In order to solve the problem of poor connection strength caused by the sleeve connection, the utility model provides a connecting joint structure of a prefabricated concrete column.
[0019] Referring to Figures 1-2 The connecting joint structure of a prefabricated concrete column comprises:
[0020] The pouring space 8 is formed between the splicing ends of the two prefabricated concrete columns 1 to be spliced.
[0021] Two skeletons are arranged on the two prefabricated concrete columns 1 to be spliced, and each skeleton includes four force members 2 arranged at the four corners of the corresponding prefabricated concrete column 1, the first end of the force member 2 is embedded in the corresponding prefabricated concrete column 1, and the second end of the force member 2 extends outward to the pouring space 8, and the force members 2 on the two skeletons are connected one by one in correspondence;
[0022] Two stirrup groups are arranged on the two skeletons, and each stirrup group includes a plurality of first stirrups 4 arranged along the height direction of the second end of the force member 2 of the corresponding skeleton, and each first stirrup 4 surrounds the corresponding four force members 2; and
[0023] The cast-in-place member is formed after pouring concrete in the pouring space 8, and all force members 2, all first stirrups 4 and the two prefabricated concrete columns 1 to be spliced are anchored into a whole through the cast-in-place member.
[0024] Specifically, in this embodiment, the force member 2 can be a steel plate or a profile steel, which replaces the traditional steel bar to improve the bearing capacity of the prefabricated concrete column 1;
[0025] Further, referring to Figure 2 As shown, the first stirrup 4 includes four connecting sections, which are respectively welded between the adjacent force members 2 of the same skeleton and enclosed in a mouth-shaped form, and the connecting end can be a steel bar section or a steel plate section;
[0026] By adopting the form of welding to connect the spliced force members 2, the skeleton stress is directly and effectively transmitted, and compared with the traditional prefabricated concrete column 1 steel sleeve connection mode, the connection mode of the skeleton welding has a significant improvement on the bearing capacity of the prefabricated concrete column 1-column joint connection, and has great application prospect.
[0027] Among them, referring to Figures 1-2 It also includes four locking members for fixing the two force members 2 of each pair.
[0028] The locking member includes two ear plates 5 fixed respectively on the outside of the second end of the corresponding two force members 2 and a connecting plate 7 with two ends corresponding to the two ear plates 5, and the locking member further includes two fixing members for fixing the two ends of the connecting plate 7 with the corresponding ear plates 5.
[0029] The fixing member includes a bolt 6, a through hole penetrating in the thickness direction of the ear plate 5 and a screw hole penetrating in the thickness direction of the connecting plate 7, and the bolt 6 penetrates through the through hole and is inserted into the screw hole to fix the ear plate 5 and the connecting plate 7.
[0030] Specifically, the first end of the lug plate 5 is connected and fixed with the force receiving member 2 and is pre-buried in the corresponding precast concrete column 1, and the second end extends out of the precast concrete column 1, the through hole is arranged at the second end of the lug plate 5, and the number of the fixing members can be set according to actual construction;
[0031] Specifically, in construction, after the precast concrete column 1 is hoisted and positioned on site, the lug plate 5 on the one-to-one corresponding force receiving member 2 is connected and fixed by the connecting plate 7 and the bolt 6, so that the two one-to-one corresponding force receiving members 2 are aligned and fixed, facilitating subsequent welding operation of the two corresponding force receiving members 2.
[0032] The hoop group further comprises a plurality of second hoops 3 arranged along the height direction of the first end of the corresponding force receiving member 2, and each second hoop 3 surrounds the corresponding four force receiving members 2 and is pre-buried in the corresponding precast concrete column 1.
[0033] Specifically, the structure of the second hoop 3 is consistent with that of the first hoop 4.
[0034] By using the above design, the overall bearing capacity of the precast concrete column 1 can be improved.
[0035] It should be noted that in this article, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.
[0036] The above embodiments of the present application are described in detail in combination with the drawings, and those skilled in the art can make various changes to the present application according to the above description. Therefore, some details in the embodiments should not constitute a limitation on the present application, and the scope of protection of the present application will be defined by the appended claims.
Claims
1. A connection joint configuration of precast concrete columns, characterized by, The utility model relates to a prefabricated concrete column splicing structure, comprising: a pouring space formed between the splicing ends of two prefabricated concrete columns to be spliced; two skeletons respectively arranged on the two prefabricated concrete columns to be spliced, each skeleton comprising four force members, each force member being arranged at a corresponding corner of the prefabricated concrete column, the first end of the force member being embedded in the corresponding prefabricated concrete column, and the second end of the force member extending outward to the pouring space, the force members on the two skeletons being connected one by one in correspondence; two stirrup groups respectively arranged on the two skeletons, each stirrup group comprising a plurality of first stirrups arranged along the height direction of the second end of the force member of the corresponding skeleton, each first stirrup surrounding the corresponding four force members; and a cast-in-place member formed after pouring concrete in the pouring space, the cast-in-place member anchoring all the force members, all the first stirrups, and the two prefabricated concrete columns to be spliced into one whole.
2. A connection node construction for precast concrete columns as claimed in claim 1, characterised in that, The utility model further comprises four locking members respectively used for fixing the two force members of each pair.
3. A connection node construction of precast concrete columns as claimed in claim 2, characterised in that, The locking member comprises two ear plates respectively fixed to the outside of the second end of the corresponding two force members and a connecting plate with two ends corresponding to the two ear plates, the locking member further comprising two fixing members respectively used for fixing the two ends of the connecting plate to the corresponding ear plates.
4. A connection node construction of precast concrete columns as claimed in claim 3, characterised in that, The fixing member comprises a bolt, a through hole penetrating along the thickness direction of the ear plate, and a threaded hole penetrating along the thickness direction of the connecting plate, the bolt penetrating through the through hole and being inserted into the threaded hole to fix the ear plate to the connecting plate.
5. A connection node construction of precast concrete columns as claimed in claim 1, characterised in that, The stirrup group further comprises a plurality of second stirrups arranged along the height direction of the first end of the force member of the corresponding skeleton, each second stirrup surrounding the corresponding four force members and being embedded in the corresponding prefabricated concrete column.