Reinforcing steel bar connecting structure with enlarged bearing platform
By setting up connecting steel bar components on the original support and pouring an increased concrete layer, the problems of waste and high cost in the support increase method are solved, effectively enlarging and widening the support, improving bearing capacity and saving costs.
Patent Information
- Application Number
- CN202420812491.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-18
AI Technical Summary
The method of increasing the support in the prior art has problems of waste of materials and high costs.
By setting the first connecting steel bar assembly and the second connecting steel bar assembly on the basis of the original support, and pouring the concrete layer with the casting formwork, the enlargement and widening of the support are achieved.
On the premise of retaining the original support, the support has been expanded and widened, saving materials and costs, and improving the bearing capacity of the support.
Smart Images
Figure CN222435963U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction equipment, in particular to a steel bar connection structure with an enlarged bearing platform. Background Art
[0002] The cap plays a role in sharing and transferring the load of the upper structure in the building structure, increasing the stability and coordination of the building structure. However, during the construction of the cap, due to the increase in the number of actual construction piles, or the deviation of the pile position caused by the lateral squeezing of the soil and the pore water pressure, the original design of the cap plane size does not meet the structural requirements specified in the specification. At this time, if the cap is constructed according to the original design conditions, it will lead to the obstruction of the upper structure load transfer, shear damage of the cap and insufficient bearing capacity of the pile foundation, which will bring great risks to the use and safety of buildings and structures.
[0003] In view of the above phenomenon, the cap needs to be processed accordingly. In the prior art, the cast cap is usually chiseled out and a large cap with a bearing capacity that meets the requirements is repositioned and cast, which will cause a waste of steel bars and concrete materials and increase costs, resulting in economic losses.
[0004] That is to say, the method of increasing the size of the foundation in the prior art has the problem of wasting materials and high cost. Utility Model Content
[0005] The utility model provides a steel bar connection structure with an enlarged cap to solve the above technical problems, thereby solving the problems of waste of materials and high cost in the method of enlarging the cap.
[0006] The utility model provides a steel bar connection structure with an enlarged cap, comprising: an original structural column; and
[0007] An original cap, which is arranged at the bottom of the original structural column and is used to support the original structural column, and the original cap has two oppositely arranged roughened surfaces; and
[0008] A first connecting steel bar assembly, one end of which is inserted into one of the two roughened surfaces along a first direction; and
[0009] A second connecting steel bar component is arranged opposite to the first connecting steel bar component in the first direction, and the second connecting steel bar component is inserted into another roughened surface along the first direction; and
[0010] An enlarged concrete layer is provided with a first connecting steel bar assembly and a second connecting steel bar assembly in the enlarged concrete layer;
[0011] Wherein, the first connecting steel bar assembly and the second connecting steel bar assembly are configured to increase the internal support of the concrete layer.
[0012] In one embodiment, the first connecting reinforcement assembly comprises:
[0013] A first steel cage, one end of which is inserted into one of the two roughened surfaces along a first direction; and
[0014] The first reinforcing member has one end inserted into one of the two roughened surfaces along a first direction, and the first reinforcing member is located in the first steel cage.
[0015] In one embodiment, the first reinforcement cage comprises:
[0016] A plurality of upper stress-bearing steel bars are arranged in the enlarged concrete layer at intervals along the second direction; and
[0017] A plurality of lower stress-bearing steel bars are arranged in the enlarged concrete layer at intervals along the second direction; and
[0018] A plurality of stirrups are arranged along a first direction on the plurality of lower stress-bearing steel bars and on the outer periphery of the plurality of lower stress-bearing steel bars;
[0019] Among them, multiple upper stress-bearing steel bars are arranged one by one corresponding to multiple lower stress-bearing steel bars, one end of the upper stress-bearing steel bar is inserted into the original pedestal from one roughened surface, one end of the lower stress-bearing steel bar is inserted into the original pedestal from another roughened surface, and the other end of the upper stress-bearing steel bar is lap-welded with the other end of the corresponding lower stress-bearing steel bar.
[0020] In one embodiment, the upper stress-bearing reinforcement comprises:
[0021] a horizontal section extending along a first direction; and
[0022] A bending section, which is connected to the horizontal section by bending;
[0023] The horizontal section and the bending section are connected at a certain angle.
[0024] In one embodiment, the horizontal section and the bent section have an angle β, and the value range of the angle β is: 89°≤angle β≤91°.
[0025] In one embodiment, the upper stress-bearing steel bars have the same structure as the lower stress-bearing steel bars.
[0026] In one embodiment, the first reinforcement member includes a plurality of short connecting steel bars, and the plurality of short connecting steel bars are respectively arranged at intervals along the second direction and the third direction.
[0027] In one embodiment, the distance between two adjacent connecting short steel bars is 200 mm.
[0028] In one embodiment, the depth of the connecting short steel bar inserted into the original cap is 15 times the diameter d of the connecting short steel bar.
[0029] In one embodiment, the second connecting steel bar assembly has the same structure as the first connecting steel bar assembly, and the second connecting steel bar assembly is located inside the first connecting steel bar assembly.
[0030] Compared with the prior art, the beneficial effects of the utility model are as follows: on the basis of the original cap, a first connecting steel bar assembly and a second connecting steel bar assembly are provided. The first connecting steel bar assembly and the second connecting steel bar assembly are used in cooperation with the casting formwork to cast an enlarged concrete layer. Thus, the cap is enlarged and widened while retaining the original cap. This is more reasonable than the prior art method of dismantling the entire cap and re-casting. Thus, costs are saved. In addition, the first connecting steel bar assembly and the second connecting steel bar assembly serve as internal supports for the enlarged concrete layer. This improves the bearing capacity of the enlarged steel bar connection structure of the cap to meet the bearing requirements on site. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 It is a main cross-sectional view of the enlarged steel bar connection structure of the cap in the embodiment of the utility model;
[0032] Figure 2 for Figure 1 Section view of the enlarged reinforcement connection structure at AA of the center cap.
[0033] In the figure: 1. Original structural column; 2. Original cap; 3. Roughened surface; 4. Connecting short steel bars; 5. Upper stress-bearing steel bars; 51. Horizontal section; 52. Bending section; 6. Stirrups; 7. Lower stress-bearing steel bars; 8. Enlarged concrete layer. DETAILED DESCRIPTION
[0034] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0035] like Figure 1 and Figure 2 As shown, the utility model provides a steel bar connection structure with an enlarged cap, and the steel bar connection structure with an enlarged cap includes an original structural column 1, an original cap 2, a first connecting steel bar assembly, a second connecting steel bar assembly and an enlarged concrete layer 8. Among them, the original cap 2 is arranged at the bottom of the original structural column 1, and is used to support the original structural column 1. The original cap 2 has two oppositely arranged roughened surfaces 3; the first connecting steel bar assembly, one end of which is inserted into one of the two roughened surfaces 3 along the first direction; the second connecting steel bar assembly is arranged opposite to the first connecting steel bar assembly in the first direction, and the second connecting steel bar assembly is inserted into the other roughened surface 3 along the first direction; the enlarged concrete layer 8, the first connecting steel bar assembly and the second connecting steel bar assembly are arranged in the enlarged concrete layer 8. The first connecting steel bar assembly and the second connecting steel bar assembly are configured to form an internal support of the enlarged concrete layer 8.
[0036] In the above arrangement, a first connecting steel bar assembly and a second connecting steel bar assembly are arranged on the basis of the original cap 2. The first connecting steel bar assembly and the second connecting steel bar assembly are used in cooperation with the casting formwork to cast the enlarged concrete layer 8. Thus, the cap is enlarged and widened while retaining the original cap 2. This is more reasonable than the method of re-casting in the prior art, which requires the entire cap to be dismantled. Thus, costs are saved. In addition, the first connecting steel bar assembly and the second connecting steel bar assembly serve as internal supports for the enlarged concrete layer 8. This improves the bearing capacity of the enlarged steel bar connection structure of the cap to meet the bearing requirements on site.
[0037] Specifically, Figure 1 and Figure 2 As shown, in one embodiment, the first connecting steel bar assembly includes a first steel bar cage and a first reinforcement member. The first steel bar cage has one end inserted into one of the two roughened surfaces 3 along a first direction; the first reinforcement member has one end inserted into one of the two roughened surfaces 3 along a first direction, and the first reinforcement member is located in the first steel bar cage.
[0038] In the above arrangement, the first steel cage and the first reinforcement member are arranged in coordination, so that the overall bearing capacity of the inner support can be improved, thereby ensuring that the enlarged steel connection structure of the pedestal can meet the bearing capacity requirements on site.
[0039] Specifically, Figure 1 and Figure 2 As shown, in one embodiment, the first steel cage includes a plurality of upper stress-bearing steel bars 5 and a plurality of lower stress-bearing steel bars 7 and a plurality of stirrups 6. Among them, the plurality of upper stress-bearing steel bars 5 are arranged in the enlarged concrete layer 8 at intervals along the second direction; the plurality of lower stress-bearing steel bars 7 are arranged in the enlarged concrete layer 8 at intervals along the second direction; the plurality of stirrups 6 are arranged on the outer periphery of the plurality of lower stress-bearing steel bars 7 and the plurality of lower stress-bearing steel bars 7 along the first direction; the plurality of upper stress-bearing steel bars 5 are arranged one-to-one with the plurality of lower stress-bearing steel bars 7, one end of the upper stress-bearing steel bars 5 is inserted into the original cap 2 from one roughened surface 3, one end of the lower stress-bearing steel bars 7 is inserted into the original cap 2 from another roughened surface 3, and the other end of the upper stress-bearing steel bars 5 is overlap-welded with the other end of the corresponding lower stress-bearing steel bars 7.
[0040] Specifically, Figure 1 and Figure 2 As shown, in one embodiment, the upper stress-bearing steel bar 5 includes a horizontal section 51 and a bent section 52. The horizontal section 51 is extended along a first direction; the bent section 52 is bent and connected to the horizontal section 51; and the horizontal section 51 and the bent section 52 are connected at a certain angle.
[0041] Specifically, Figure 1 and Figure 2As shown, in one embodiment, the horizontal section 51 and the bent section 52 have an angle β, and the value range of the angle β is: 89°≤angle β≤91°.
[0042] Further, in one embodiment, the value of the angle β is 90°.
[0043] Specifically, Figure 1 and Figure 2 As shown, in one embodiment, the first reinforcement member includes a plurality of connecting short steel bars 4, and the plurality of connecting short steel bars 4 are spaced apart along the second direction and the third direction, respectively.
[0044] Specifically, in one embodiment, the distance between two adjacent connecting short steel bars 4 is 200 mm. The depth of the connecting short steel bars 4 inserted into the original cap 2 is 15 times the diameter d of the connecting short steel bars 4 .
[0045] Specifically, in one embodiment, the second connecting steel bar assembly has the same structure as the first connecting steel bar assembly, and the second connecting steel bar assembly is located inside the first connecting steel bar assembly.
[0046] It should be noted that in this application, the interface of the original cap 2 is trimmed. After removing the surface mortar and exposing the new surface of the aggregate, it is artificially roughened, and the roughening depth is not less than 10mm. The roughened surface 3 of the bearing is drilled with an impact drill to drill the reinforcement holes, the hole diameter is not less than d+4mm, and the drilling depth is not less than Ld+15mm, where d is the diameter of the steel bar and Ld is the depth of the steel bar implantation. The upper stress-bearing steel bar 5 is HRB400, one end is implanted into the original cap 2 with a depth of 25d, and the other end is bent 90°, and the single-row spacing of the steel bars is 150mm. The connecting short steel bar 4 is HRB400, implanted into the original cap 2 with an implantation depth of 15d, and the bidirectional spacing of the connecting short steel bar 4 is 200mm. The lower stress-bearing steel bar 7 is implanted into the original cap 2, and its steel bar model, implantation depth and bending degree are the same as the upper stress-bearing steel bar, and the single-row spacing of the steel bars is 150mm. The upper stress-bearing steel bars 5 and the lower stress-bearing steel bars 7 are welded and sealed at the end of the newly expanded pedestal, and the length of the welded edge is 100 mm.
[0047] Among them, the stirrups 6 tightly clamp the upper stress-bearing steel bars 5 and the lower stress-bearing steel bars 7, and the stirrup spacing is 100 mm. The enlarged steel bar connection method of the cap not only greatly enhances the reliability of the interface connection between the new and old caps and the convenience of on-site construction operations, has strong practical application significance, but also solves the problems of pile position deviation, increased pile number, shear damage of the cap, and insufficient design value of the bearing capacity of the cap during the construction of the building structure.
[0048] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0049] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.
[0050] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0051] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.
Claims
1. A steel bar connection structure with an enlarged cap, characterized in that: include: Original structural columns; as well as An original cap, which is arranged at the bottom of the original structural column and is used to support the original structural column, and the original cap has two oppositely arranged roughened surfaces; as well as A first connecting steel bar assembly, one end of which is inserted into one of the two roughened surfaces along a first direction; as well as a second connecting steel bar component, which is arranged opposite to the first connecting steel bar component in the first direction, and the second connecting steel bar component is inserted into the other roughened surface along the first direction; and an enlarged concrete layer, wherein the first connecting steel bar assembly and the second connecting steel bar assembly are arranged in the enlarged concrete layer; Wherein, the first connecting steel bar assembly and the second connecting steel bar assembly are configured to form an inner support of the enlarged concrete layer.
2. The steel bar connection structure with enlarged cap according to claim 1, characterized in that: The first connecting steel bar assembly comprises: A first steel cage, one end of which is inserted into one of the two roughened surfaces along a first direction; and A first reinforcement member has one end inserted into one of the two roughened surfaces along a first direction, and the first reinforcement member is located in the first steel cage.
3. The steel bar connection structure with enlarged cap according to claim 2, characterized in that: The first reinforcement cage comprises: a plurality of upper stress-bearing steel bars arranged in the enlarged concrete layer at intervals along the second direction; and a plurality of lower stress-bearing steel bars arranged in the enlarged concrete layer at intervals along the second direction; and A plurality of stirrups, which are arranged along a first direction on the plurality of lower stress-bearing steel bars and on the outer periphery of the plurality of lower stress-bearing steel bars; Among them, multiple upper stress-bearing steel bars are arranged one-to-one correspondingly to multiple lower stress-bearing steel bars, one end of the upper stress-bearing steel bar is inserted into the original cap from one of the roughened surfaces, one end of the lower stress-bearing steel bar is inserted into the original cap from the other roughened surface, and the other end of the upper stress-bearing steel bar is overlap-welded with the other end of the corresponding lower stress-bearing steel bar.
4. The steel bar connection structure with enlarged cap according to claim 3, characterized in that: The upper stress-bearing steel bars include: a horizontal section extending along a first direction; and A bending section, which is bent and connected to the horizontal section; Wherein, the horizontal section is connected to the bending section at a certain angle.
5. The steel bar connection structure with enlarged cap according to claim 4, characterized in that: The horizontal section and the bending section have an included angle β, and the value range of the included angle β is: 89°≤angle β≤91°.
6. The steel bar connection structure with enlarged cap according to claim 4 or 5, characterized in that: The upper stress-bearing steel bars have the same structure as the lower stress-bearing steel bars.
7. The steel bar connection structure with enlarged cap according to claim 2, characterized in that: The first reinforcement member includes a plurality of connecting short steel bars, and the plurality of connecting short steel bars are respectively arranged at intervals along the second direction and the third direction.
8. The steel bar connection structure with enlarged cap according to claim 7, characterized in that: The distance between two adjacent connecting short steel bars is 200 mm.
9. The steel bar connection structure with enlarged cap according to claim 7, characterized in that: The depth of the connecting short steel bar inserted into the original cap is 15 times the diameter d of the connecting short steel bar.
10. The steel bar connection structure with enlarged cap according to claim 7, characterized in that: The second connecting steel bar assembly has the same structure as the first connecting steel bar assembly, and the second connecting steel bar assembly is located inside the first connecting steel bar assembly.