CN218234436U - Newly-increased floor and original beam connecting structure - Google Patents
Newly-increased floor and original beam connecting structure Download PDFInfo
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- CN218234436U CN218234436U CN202221368791.XU CN202221368791U CN218234436U CN 218234436 U CN218234436 U CN 218234436U CN 202221368791 U CN202221368791 U CN 202221368791U CN 218234436 U CN218234436 U CN 218234436U
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Abstract
The utility model provides a connecting structure of a newly added floor slab and an original beam, which comprises the original beam, the newly added floor slab and a water stop steel plate; the outer side of the original beam is connected with the newly added floor slab, and a floor slab structural steel bar at one end, connected with the original beam, of the newly added floor slab is implanted into the concrete structure of the original beam; a groove is cut in the side face of the original beam at the joint with the newly added floor slab, the depth of the groove is greater than the thickness of the concrete protective layer of the original beam, and the structural steel bar of the original beam at the joint with the newly added floor slab is arranged in the groove; the water stop steel plate is arranged between the upper layer steel bar and the lower layer steel bar of the floor slab structural steel bar, and the vertical side face of the water stop steel plate is fixedly connected with the original beam structural steel bar in the groove; and underwater embedded bar glue is filled in a gap between the water stop steel plate and the bottom surface of the groove. The utility model discloses a connection structure can improve wholeness and the waterproof quality that newly-increased floor and former roof beam are connected.
Description
Technical Field
The utility model relates to a building reinforcement transformation engineering technical field, in particular to connection structure of newly-increased floor and former roof beam.
Background
In order to make better use of the space available in a building structure, there are a number of structural functional modifications in current buildings, including the addition of floor slabs to the original structure.
The current method for increasing the floor slab comprises the following steps: firstly, the building structure is confirmed to be incapable of increasing the floor slab through an original structure drawing, structural steel bars of a newly increased floor slab are implanted into an original beam after the floor slab is confirmed to be increased, then formwork erection of the newly increased floor slab is carried out, and finally concrete is poured for forming. But the former structure roof beam of drilling on too many can cause slight destruction to former structure roof beam, and the concrete that newly-increased floor was pour simultaneously is back concreting, and back concreting and former roof beam concrete structure's bonding quality is difficult to guarantee, and newly-increased floor and former roof beam junction easily form weak waterproof node.
The existing waterproof treatment method for the joint of the newly-added roof slab and the newly-added basement roof slab and the original beam adopts a flexible waterproof method, and the waterproof purpose is achieved by filling flexible waterproof materials or paving flexible waterproof layers at the joint of the newly-added floor slab and the original beam. However, the flexible waterproof material and the flexible waterproof layer are easy to age in the using process, and the joint of the newly added floor slab and the original beam is easy to crack under the load effect, so that the waterproof structure at the joint of the newly added floor slab and the original beam is ineffective, water seepage is caused, and the service life of the reinforced and reformed building is influenced.
Therefore, there is a need in the art to develop a new floor slab and original beam connection structure to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a connection structure of newly-increased floor and former roof beam to the not strong and poor not enough of waterproof quality of present newly-increased floor and former roof beam junction wholeness to improve wholeness and the waterproof quality that newly-increased floor and former roof beam are connected.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a connection structure of a newly-added floor slab and an original beam comprises the original beam, the newly-added floor slab and a water stop steel plate;
the newly added floor slab is connected to the outer side of the original beam, and a floor slab structural steel bar at one end, connected with the original beam, of the newly added floor slab is implanted into a concrete structure of the original beam; a groove is cut in the side face of the original beam at the joint with the newly added floor slab, the depth of the groove is greater than the thickness of the concrete protective layer of the original beam, and the structural steel bar of the original beam at the joint with the newly added floor slab is arranged in the groove;
the water stop steel plate is arranged between the upper layer steel bar and the lower layer steel bar of the floor slab structural steel bar, and the vertical side face of the water stop steel plate is fixedly connected with the original beam structural steel bar in the groove;
and underwater bar planting glue is filled in a gap between the water stop steel plate and the bottom surface of the groove.
According to the connecting structure of the newly-added floor slab and the original beam, the groove is formed in the side face of the connecting position of the original beam and the newly-added floor slab, the depth of the groove is larger than the thickness of the concrete protective layer of the original beam, the original beam structural steel bar at the connecting position of the original beam and the newly-added floor slab is placed in the groove, the vertical side face of the water stop steel plate is fixedly connected with the original beam structural steel bar in the groove, and convenience and stability in the connecting process of the water stop steel plate and the original beam can be guaranteed; simultaneously, the gap between stagnant water steel sheet and the bottom surface of recess is filled with and is planted the muscle and glue under water, can guarantee the wholeness and the waterproof quality that stagnant water steel sheet and former roof beam are connected. Therefore, the connecting structure of the newly added floor slab and the original beam can improve the integrity and the waterproof quality of the connection of the newly added floor slab and the original beam.
Furthermore, the distance between the inner side of the original beam structure steel bar and the bottom surface of the groove is 5-10 mm.
Furthermore, the side surface of the original beam at the joint with the newly added floor slab is also provided with a bar planting hole; one end of each of the upper layer steel bar and the lower layer steel bar is inserted into the corresponding bar planting hole; the gaps among the upper layer of steel bars, the lower layer of steel bars and the bar planting holes are filled with underwater bar planting glue.
Furthermore, the distance between the bottom end surface of the bar planting hole and the outer side surface of the original beam is not less than fifteen times the diameter of the upper layer steel bar and the lower layer steel bar. Therefore, the connection stability of the newly added floor slab and the original beam can be ensured.
Further, the water stop steel plate comprises a vertical section and a horizontal section; the top and the bottom of the outer side surface of the vertical section are fixedly connected with the original beam structural steel bar; the middle part of the inner side surface of the vertical section is fixedly connected with the horizontal section, and the horizontal section is anchored in the concrete structure of the newly added floor slab.
Further, the thickness of the vertical section is 10mm.
Further, the thickness of the horizontal section is 4mm.
Furthermore, the length of the horizontal section is 150 mm-200 mm. Therefore, the reliability of connection of the water stop steel plate with the original beam and the newly-added floor slab can be ensured.
Furthermore, the newly-added floor slab is a newly-added roof slab or a newly-added basement roof slab.
Furthermore, the side face of the end, connected with the original beam structural steel bar, of the water stop steel plate is a rough face. Therefore, the bonding area of the vertical side face of the water stop steel plate and underwater embedded bar glue can be increased, and the integrity of the connection of the water stop steel plate and the original beam is improved.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a connection structure can make newly-increased floor and former roof beam zonulae occludens form a whole, can improve the wholeness that newly-increased floor and former roof beam are connected.
2. The utility model discloses a stagnant water steel sheet respectively with former roof beam and newly-increased floor fixed connection, the stagnant water steel sheet is strong in the stability of use, can guarantee the waterproof quality of former roof beam and newly-increased floor junction.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of the joint between the original beam and the newly added floor slab in FIG. 1;
fig. 3 is a schematic view of a water stop steel plate structure according to an embodiment of the present invention.
In the figure: 1. original beam; 2. newly adding a floor slab; 3. a water stop steel plate; 31. a vertical section; 32. a horizontal segment; 4. Floor slab structural reinforcement; 41. upper layer steel bars; 42. lower layer steel bar; 5. a groove; 51. a bottom surface; 6. original beam structure steel bars; 7. planting tendon holes; 8. original floor slab; 9. and (6) welding the nodes.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence with the upper, lower, left and right directions of the drawings, and do not limit the structure.
As shown in fig. 1 to fig. 3, the connection structure of the newly added floor slab and the original beam of the embodiment includes an original beam 1, a newly added floor slab 2, and a water stop steel plate 3. The newly added floor slab 2 is a newly added roof slab or a newly added basement roof slab. The inner side of the original beam 1 is connected with the original floor slab 8, and the outer side of the original beam 1 is connected with the newly added floor slab 2. And the floor slab structural steel bars 4 at one end of the newly added floor slab 2 connected with the original beam 1 are implanted into the concrete structure of the original beam 1.
Be equipped with between floor structure reinforcing bar 4's upper reinforcing bar 41 and lower floor's reinforcing bar 42 stagnant water steel sheet 3, stagnant water steel sheet 3's vertical side with be located former beam structure reinforcing bar 6 fixed connection in the recess 5.
And underwater bar planting glue is filled in a gap between the water stop steel plate 3 and the bottom surface 51 of the groove 5. The underwater steel bar planting glue is preferably Gute Bao JN-M pressure injection adhesive steel glue.
As shown in fig. 1 and 2, the distance between the inner side of the original beam structure steel bar 6 and the bottom surface 51 of the groove 5 is 5mm to 10mm.
The original beam 1 is also provided with a bar planting hole 7 on the side surface of the joint of the newly added floor slab 2. One end of each of the upper layer steel bar 41 and the lower layer steel bar 42 is inserted into the corresponding bar embedding hole 7. Gaps among the upper-layer steel bars 41, the lower-layer steel bars 42 and the bar planting holes 7 are filled with underwater bar planting glue.
The distance between the bottom end surface of the bar planting hole 7 and the outer side surface of the original beam 1 is not less than fifteen times of the diameter of the upper layer steel bar 41 and the lower layer steel bar 42. Therefore, the connection stability of the newly added floor slab and the original beam can be ensured.
As shown in fig. 3, the water stop steel plate 3 includes a vertical section 31 and a horizontal section 32. The top and the bottom of the outer side surface of the vertical section 31 are fixedly connected with the original beam structural steel bar 6. The middle part of the inner side surface of the vertical section 31 is fixedly connected with the horizontal section 32, and the horizontal section 32 is anchored in the concrete structure of the newly added floor slab 2. The thickness of the vertical section 31 is 10mm. The horizontal section 42 has a thickness of 4mm. The length of the horizontal section 42 is 150 mm-200 mm. Therefore, the reliability of connection of the water stop steel plate with the original beam and the newly-added floor slab can be ensured.
The vertical side face of the end, connected with the original beam structural steel bar 6, of the water stop steel plate 3 is a rough face. The bonding area of the vertical side face of the water stop steel plate and the underwater embedded bar glue can be increased, and the integrity of the connection of the water stop steel plate and the original beam is improved.
The connection structure of a newly-increased floor and former roof beam of this embodiment, its work progress as follows:
1. before construction, the adhering base surfaces of the water stop steel plates and the original beam structural steel bars are polished into rough surfaces, and the rough surfaces are cleaned.
2. And grooves and bar planting holes are formed in the side surface of the joint of the original beam and the newly added floor slab. The groove is opened by adopting a scabbling method, and the scabbling thickness is larger than the thickness of the concrete protective layer of the original beam. And (3) chiseling from the outer side surface of the original beam until the original beam structural steel bar on the right side surface of the original beam is exposed, and continuing chiseling to enable the distance between the inner side of the original beam structural steel bar on the right side surface of the original beam and the bottom surface of the groove to be 5-10 mm, and reserving a glue pouring seam of 5-10 mm.
3. And erecting a template of the newly added floor slab.
4. And (4) welding and fixing the water stop steel plate and the original beam structural steel bar.
5. And building structural steel bars of the newly added floor slab, and respectively placing one ends of the upper-layer steel bars and the lower-layer steel bars of the newly added floor slab in the corresponding bar planting holes.
6. And filling full underwater planting bar glue into the gap between the water stop steel plate and the bottom surface of the groove, and filling full underwater planting bar glue into the gaps among the upper-layer steel bar, the lower-layer steel bar and the planting bar hole.
7. And pouring the concrete structure of the newly added floor.
The connection structure of the newly-added floor slab and the original beam can enable the newly-added floor slab and the original beam to be tightly connected to form a whole, and the integrity of the connection position of the newly-added floor slab and the original beam can be improved. The stagnant water steel sheet of this embodiment respectively with former roof beam and newly-increased floor fixed connection, the stagnant water steel sheet is strong in the stability of use, can guarantee the waterproof quality of former roof beam and newly-increased floor junction.
The above embodiments are set forth so that the present invention may be more clearly illustrated and not intended to limit the scope of the present invention, and after reading the present invention, it will be understood that modifications of various equivalent forms of the present embodiments by those skilled in the art will fall within the scope of the present invention defined by the appended claims.
Claims (10)
1. A connection structure of a newly added floor slab and an original beam comprises the original beam (1) and the newly added floor slab (2); the water-stopping device is characterized by also comprising a water-stopping steel plate (3); the outer side of the original beam (1) is connected with the newly added floor (2), and a floor structural steel bar (4) at one end, connected with the original beam (1), of the newly added floor (2) is implanted into the concrete structure of the original beam (1); a groove (5) is formed in the side face of the joint of the original beam (1) and the newly-added floor slab (2), the depth of the groove (5) is larger than the thickness of a concrete protective layer of the original beam (1), and an original beam structure steel bar (6) of the joint of the original beam (1) and the newly-added floor slab (2) is placed in the groove (5);
the water stop steel plate (3) is arranged between an upper layer steel bar (41) and a lower layer steel bar (42) of the floor slab structural steel bar (4), and the vertical side face of the water stop steel plate (3) is fixedly connected with an original beam structural steel bar (6) in the groove (5);
and underwater bar planting glue is filled in a gap between the water stop steel plate (3) and the bottom surface (51) of the groove (5).
2. A connection structure of a newly added floor slab and an original beam according to claim 1, characterized in that the distance between the inner side of the structural steel bar (6) of the original beam and the bottom surface (51) of the groove (5) is 5mm to 10mm.
3. The connection structure of the newly added floor slab and the original beam as claimed in claim 1, wherein the original beam (1) is further provided with a bar planting hole (7) on the side surface of the connection part with the newly added floor slab (2); one end of the upper layer steel bar (41) and one end of the lower layer steel bar (42) are respectively inserted into the corresponding bar planting holes (7), and underwater bar planting glue is filled in gaps between the upper layer steel bar (41) and the lower layer steel bar (42) and the bar planting holes (7).
4. A connection structure of a newly added floor slab and an original beam as claimed in claim 3, wherein the distance between the bottom end face of the bar-planting hole (7) and the outer side face of the original beam (1) is not less than fifteen times of the diameter of the upper layer steel bar (41) and the lower layer steel bar (42).
5. A connection structure of a newly added floor slab and an original beam according to claim 1, characterized in that the water stop steel plate (3) comprises a vertical section (31) and a horizontal section (32); the top and the bottom of the outer side surface of the vertical section (31) are fixedly connected with the original beam structural steel bar (6); the middle part of the inner side surface of the vertical section (31) is fixedly connected with the horizontal section (32), and the horizontal section (32) is anchored in the concrete structure of the newly added floor slab (2).
6. A new floor slab to original beam connection structure as claimed in claim 5, characterised in that the vertical section (31) has a thickness of 10mm.
7. A new floor slab to original beam connection structure as claimed in claim 5, characterised in that the horizontal section (32) is 4mm thick.
8. A new floor and original beam connecting structure according to claim 5, characterized in that, the length of the horizontal section (32) is 150 mm-200 mm.
9. A new floor slab and original beam connection structure according to any of claims 1-8, characterized in that the new floor slab (2) is a new roof slab or a new basement roof slab.
10. A new floor and original beam connection structure as claimed in any one of claims 1 to 8, wherein the water stop steel plate (3) is rough on the side of the end connected with the original beam structure steel bar (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221368791.XU CN218234436U (en) | 2022-06-02 | 2022-06-02 | Newly-increased floor and original beam connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221368791.XU CN218234436U (en) | 2022-06-02 | 2022-06-02 | Newly-increased floor and original beam connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218234436U true CN218234436U (en) | 2023-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221368791.XU Active CN218234436U (en) | 2022-06-02 | 2022-06-02 | Newly-increased floor and original beam connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218234436U (en) |
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2022
- 2022-06-02 CN CN202221368791.XU patent/CN218234436U/en active Active
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