CN216892864U - Slurry overflowing connecting joint of assembly type structure - Google Patents
Slurry overflowing connecting joint of assembly type structure Download PDFInfo
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- CN216892864U CN216892864U CN202123235524.3U CN202123235524U CN216892864U CN 216892864 U CN216892864 U CN 216892864U CN 202123235524 U CN202123235524 U CN 202123235524U CN 216892864 U CN216892864 U CN 216892864U
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Abstract
The utility model relates to an assembly type structure grout overflow connection node, which comprises a first component and a second component, wherein the first component is constructed in advance, the second component is connected to the top of the first component in a later period, a grouting groove is reserved on the top of the first component, assembly section steel is arranged at the bottom of the second component, and the assembly section steel comprises an embedded section embedded in the second component and an insertion section protruding out of the second component; the plug-in section is plugged into the grouting groove, a gap between the plug-in section and the grouting groove is filled with slurry which is poured into the grouting groove in advance, and the slurry partially overflows to a position between the second component and the first component. The utility model can realize wet joint connection through simple splicing operation, does not need on-site formwork support and steel bar connection, and is very convenient to construct; the problems of difficult implementation of positioning of components and steel bars, complex connection structure of the steel bars in the node area, weak node strength, water leakage, inconvenient construction, low work efficiency and the like are solved; the stress of the connecting node is clear and definite, the reliability is high, and the problem that the engineering quality is uncontrollable is well solved.
Description
Technical Field
The utility model belongs to the technical field of constructional engineering, and particularly relates to a slurry overflow connecting node of an assembly type structure.
Background
At present, the scheme of the assembled structure connecting node mainly comprises a mortise and tenon bolt connecting scheme suitable for a full prefabrication scheme, a grouting sleeve connecting scheme suitable for assembling an overlapped integral structure and the like. The above schemes all have certain limitations:
1) the mortise and tenon bolt connection scheme is generally suitable for a fully prefabricated assembly type structure system, rigid connection of the mortise and tenon is difficult to achieve, the bolt durability is poor, the strength of a connection node is poor, the waterproof capacity of the mortise and tenon bolt connection scheme is weak, and the mortise and tenon bolt connection scheme is generally suitable for areas with less underground water.
2) The grouting sleeve connection scheme can realize cast-in-place wet joints, but the positioning and aligning difficulty of the on-site reinforcing steel bars is high, the requirement on construction precision is extremely high, the quality of the connection joints is uncontrollable, and the construction convenience is poor due to the fact that on-site formwork support is needed.
The problems that the positioning precision of the components and the steel bars is easy to generate deviation, the stress performance of the steel bar joints is poor, the waterproof effect of the joints is poor and the like greatly hinder the development and the promotion of the assembly type structure.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a slurry overflow connecting node with an assembly structure, which can at least solve part of defects in the prior art.
The utility model relates to an assembly type structure slurry overflowing connecting node which comprises a first component and a second component, wherein the first component is constructed in advance, the second component is connected to the top of the first component in a later period, a grouting groove is reserved in the top of the first component, assembly section steel is arranged at the bottom of the second component, and the assembly section steel comprises an embedded section embedded in the second component and an inserting section protruding out of the second component; the inserting section is inserted into the grouting groove, a gap between the inserting section and the grouting groove is filled with slurry which is poured into the grouting groove in advance, and the slurry partially overflows to a position between the second component and the first component.
In one embodiment, the grouting groove is formed by enclosing a plurality of steel wall plates pre-embedded in the first member.
In one embodiment, the first member is a reinforced concrete member, and at least a portion of the steel wall plate is welded to the steel bar structure in the first member.
As an embodiment, the partial steel wall plate is a transition wall plate disposed adjacent to the structural main rib in the first member, the transition wall plate includes a body section as a wall of the grouting groove and wing plate sections horizontally extending from two ends of the body section, and the body section and the wing plate sections are welded to the adjacent structural main rib.
In one embodiment, at least a portion of the steel wall panel is provided with shear studs extending into the first member.
As one embodiment, the embedded section is welded with a main structural rib in the second member.
As one embodiment, the embedded section is provided with a shear-resistant stud which extends into the second member.
In one embodiment, the insertion section and/or the wall of the grouting groove are provided with a protruding block.
As one embodiment, the insertion section is in a straight shape, an i-shaped shape, a C-shaped shape or an H-shaped shape, and the shape of the grouting groove is matched with the shape of the insertion section.
In one embodiment, a plurality of grouting grooves are reserved on the top of the first member, and a corresponding number of assembly section steels are arranged on the second member.
The utility model has at least the following beneficial effects:
the assembly type structure slurry overflow connection node provided by the utility model can realize wet node connection through simple splicing operation, does not need on-site formwork support and steel bar connection, reduces extra on-site workload, and is very convenient to construct; the problems of difficult implementation of positioning of components and steel bars, complex connection structure of the steel bars in the node area, weak node strength, water leakage, inconvenient construction, low work efficiency and the like are solved; the connecting node is definite in stress and high in reliability, and the problem that engineering quality is uncontrollable is solved well from the source. The scheme is suitable for both a cast-in-place structure and a prefabricated structure, and particularly has incomparable advantages of common connecting nodes at the present stage for an assembled underground station structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a first member (including a rectangular grouting groove) according to an embodiment of the utility model;
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. 2;
FIG. 4 is a schematic structural diagram of a second component (including a straight-line plug segment) according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view taken at C-C of FIG. 4;
FIG. 6 is a cross-sectional view taken along line D-D of FIG. 5;
fig. 7 is a schematic structural diagram of a connection node according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a first member (including an I-shaped grouting groove) according to an embodiment of the utility model;
fig. 9 is a schematic structural diagram of a second member (including an i-shaped plug section) according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 9, an embodiment of the present invention provides an assembly type structure grout overflow connection node, including a first member 1 constructed in advance and a second member 2 connected to the top of the first member 1 in a later stage, a grout groove 12 is reserved on the top of the first member 1, an assembly section steel 22 is arranged at the bottom of the second member 2, and the assembly section steel 22 includes an embedded section 222 embedded in the second member 2 and an insertion section 221 protruding out of the second member 2; the plug section 221 is plugged into the grout groove 12, the gap between the plug section 221 and the grout groove 12 is filled with the slurry pre-poured into the grout groove 12, and the slurry also partially overflows between the second component 2 and the first component 1.
The embodiment can be applied to the fields of subway engineering, municipal engineering, constructional engineering and the like, and is suitable for the construction of similar underground structure engineering or connection nodes in an overground assembly type structure of urban rail transit underground stations, basements, comprehensive pipe galleries, open cut intervals and the like. In one embodiment, the connection node is a panel wall connection node, for example, a connection node in a structural side wall of an underground station, and the first member 1 and the second member 2 are respectively a panel wall segment.
The first structural member 1 is generally a reinforced concrete member. For the construction of the first member 1, it may be cast-in-place construction, and it may also be a prefabricated member installed at a corresponding position, and the specific cast-in-place construction method/prefabrication method is a conventional technique in the art, and will not be described herein again.
Preferably, the wall of the grouting groove 12 is a steel wall, that is, the grouting groove 12 is formed by enclosing a plurality of steel wall plates 131 pre-embedded in the first member 1, and is matched with the assembly steel 22 on the second member 2, so that rigid connection between the first member 1 and the second member 2 is realized, and the structural strength of the connection node can be improved; wherein, can adopt welded structure between each steel wallboard 131, also can be integrated into one piece structure. Further, as shown in fig. 2 and 8, at least a portion of the steel wall panel 131 is provided with the shear studs 4 extending into the first member 1, so that the bonding effect between the steel wall panel 131 and the concrete of the first member 1 can be improved, and the stress performance of the steel wall panel 131 and the service reliability of the connection node can be further ensured.
Further, for the first member 1 of the reinforced concrete structure, at least part of the steel wall plate 131 is welded with the reinforced structure in the first member 1, so that the structural stress of the grouting groove 12 can be reliably transmitted to the first member 1, and particularly, part of the steel wall plate 131 is welded with the main structural rib 11 in the first member 1, so that the stress performance is better. Preferably, the structural load at the grouting groove 12 and the stressed steel bars required for the structural load can be determined by means of force calculation, and the like, and further, the structural main bars 11 of the first member 1 to be connected are determined, so as to determine the width of the steel wall plate 131 welded with the structural main bars 11 in the first member 1. In one embodiment, as shown in fig. 2 and 8, the partial steel wall plate 131 is a transition wall plate 132 disposed adjacent to the structural main rib 11 in the first member 1, the transition wall plate 132 includes a body section as a wall of the grouting groove 12 and wing plate sections horizontally extending from two ends of the body section, and the body section and the wing plate sections are welded to the adjacent structural main rib 11; i.e., the transition wall panel 132 is widened to connect the desired number or more of structural studs 11. Optionally, the transition wall 132 is connected to a channel to enclose the grout groove 12. Based on the scheme, the structure at the position of the grouting groove 12 is loaded with the required stressed steel bars and converted through the steel plates, the steel bar structure at the connecting node is greatly simplified, the construction of the first component 1 is facilitated, the construction cost is reduced, and the stress performance of the structure can be improved.
The second member 2 is generally a reinforced concrete member, and the prefabrication method thereof is conventional in the art and will not be described herein. Similarly, as shown in fig. 5 and 9, the shear-resistant studs 4 extending into the second member 2 are disposed on the embedded sections 222, so that the combination effect between the assembly profile steel 22 and the concrete of the second member 2 can be improved, and the stress performance of the assembly profile steel 22 and the service reliability of the connection node can be further ensured.
Further, as shown in fig. 5, 6 and 9, the embedded section 222 is welded with the main structural rib 21 in the second member 2, so that the structural stress of the assembly steel 22 can be reliably transmitted to the second member 2. Similarly, the stress load of the assembled section steel 22 and the stressed steel bar required by the stress load can be determined by stress calculation and the like, and further the structural main bar 21 of the second member 2 to be connected is determined, so as to determine the width of the embedded section steel welded with the structural main bar 21 in the second member 2. In one embodiment, as shown in fig. 5, 6 and 9, the embedded section 222 includes a section steel body section 2222 integrally formed with the insertion section 221 and a section steel conversion section 2221 welded to the section steel body section 2222, and the section steel conversion section 2221 is welded to the main structural rib 21 in the second member 2, so that the section steel body section 2222 and the insertion section 221 can be easily arranged, and the section steel conversion section 2221 with corresponding specifications can be conveniently selected according to design requirements to meet structural stress requirements; generally, the transverse width of the section steel transformation section 2221 is greater than the transverse width of the section steel body section 2222. Based on the scheme, the stressed steel bars required by the stress load at the position of the assembled section steel 22 are converted through the section steel, the steel bar structure at the connecting node is greatly simplified, the construction of the second component 2 is facilitated, the construction cost is reduced, and the structural stress performance can be improved.
The protruding length of the insertion section 221 should not be greater than the depth of the grouting groove 12, and the protruding length of the insertion section 221 is preferably slightly less than the depth of the grouting groove 12, so as to ensure that the bottom surface of the second member 2 can be attached to the top surface of the first member 1. Preferably, the insertion section 221 is adapted to the grouting groove 12, and after the insertion, a gap with a certain width is left between the two, and after the insertion, the matching gap can be filled with slurry.
After the inserting section 221 is inserted into the grouting groove 12 and before the grout is solidified, the inserting section 221 can be used as a column foot of the second member 2, and can play a role of a temporary stress member, so that the connection quality between the first member 1 and the second member 2 can be ensured.
Further, as shown in fig. 2, 4, 6 and 8, the protruding blocks 3 are disposed on the plug section 221 and/or on the wall of the grouting groove 12, so that the bonding between the plug section 221 and the grout, the bonding between the steel wall plate 131 and the grout, and the shear resistance of the structural member can be increased, and the structural strength of the connection node can be further improved.
Further, as shown in fig. 4 and fig. 6, a guide strip 223 may be protrudingly disposed on the insertion section 221, for example, the guide strips 223 are disposed on two wide side plates of the insertion section 221, or the guide strips 223 are disposed on four side plates of the insertion section 221, during the insertion process of the insertion section 221, the guide strips 223 are adapted to contact with the groove walls of the corresponding sides of the grouting groove 12, so as to achieve guiding and limiting effects, ensure convenience and accuracy of the insertion operation, and completely omit operations such as on-site formwork erection.
It will be appreciated that the shape of the plug section 221 is adapted to the shape of the grout groove 12. In one embodiment, as shown in fig. 1-6, the insertion section 221 is a straight line, and the grouting groove 12 is a rectangular groove correspondingly; in another embodiment, as shown in fig. 8 and 9, the insertion section 221 is i-shaped, and the grouting groove 12 is correspondingly an i-shaped groove; of course, the structure is not limited to the above, and the insertion section 221 may be made of C-shaped steel, H-shaped steel, other regular-shaped steel, irregular-shaped steel, or the like.
The construction method of the assembly type structure slurry overflow connection node roughly comprises the following steps:
constructing a first member 1, reserving a grouting groove 12 at the top of the first member 1 and grouting into the grouting groove 12;
prefabricating a second component 2, wherein the bottom of the second component 2 is provided with assembly section steel 22, and the assembly section steel 22 comprises an embedded section 222 embedded in the second component 2 and an insertion section 221 protruding out of the second component 2; the second member 2 is lifted to the upper side of the first member 1, is inserted into the grouting groove 12 through the insertion section 221, and enables the slurry in the grouting groove 12 to overflow, so that the second member 2 is connected with the first member 1.
During actual construction, one or more groups of assembling structural steel 22-grouting groove 12 assembling structures can be arranged according to the specifications of the first member 1 and the second member 2, and obviously, when the multiple groups of assembling structures are adopted to complete the connection between the first member 1 and the second member 2, the structural strength, the rigidity and the service reliability of the connection node can be ensured. When a plurality of groups of assembly structures are arranged, the assembly structures can be designed to be arranged in a straight line shape at intervals or in a matrix shape according to specific conditions, and the like, and an irregular arrangement form can also be adopted. When the inserting section 221 is inserted into the grouting groove 12, slurry in the grouting groove 12 overflows along with the inserting section, and a seam between the first component 1 and the second component 2 can be filled, so that the waterproof performance and the sealing effect of a connecting joint can be effectively improved; through the distribution form and the distribution density design of a plurality of groups of the assembly structures, the specification design of the grouting groove 12 and the like, the structural strength of the connecting joint can be ensured, and the effect of reliably filling the joint between the first member 1 and the second member 2 through overflowing slurry can be achieved.
In an alternative embodiment, a plurality of shallow grooves are formed on the top of the first member 1, and are preferably distributed around the grouting groove 12, and when the insertion section 221 is inserted into the grouting groove 12, the overflowing slurry can fill the shallow grooves, so that on one hand, the slurry overflowing below the top surface of the first member 1 can be reduced to cause waste, and more importantly, the bonding effect between the grouting material and the first member 1 can be increased, thereby increasing the structural integrity and the cooperative stress between the grouting material-steel wall plate 131-assembly steel section 22 and the first member 1 and the second member 2, and correspondingly, improving the structural strength of the connection node. When the shallow grooves are communicated with the grouting groove 12, the height of initial grouting in the grouting groove 12 is lower than the groove bottom of the shallow grooves; particularly, when the inserting section 221 starts to be inserted, the overflowed slurry enters the shallow grooves for temporary storage, and with the further insertion of the inserting section 221, the slurry can respectively overflow from the grouting grooves 12 and the shallow grooves, so that the slurry can be well diffused and overflowed, the slurry distribution uniformity between the first component 1 and the second component 2 is improved, and the sealing performance and the waterproof effect of the joint are correspondingly improved.
The assembly type structure slurry overflow connection node provided by the embodiment of the utility model can realize wet node connection through simple splicing operation, does not need on-site formwork support and steel bar connection, reduces extra on-site workload, and is very convenient to construct; the problems of difficult implementation of positioning of components and steel bars, complex connection structure of the steel bars in the node area, weak node strength, water leakage, inconvenient construction, low work efficiency and the like are solved; the connecting node is definite in stress and high in reliability, and the problem that engineering quality is uncontrollable is solved well from the source. The scheme is suitable for both a cast-in-place structure and a prefabricated structure, and particularly has incomparable advantages of common connecting nodes at the present stage for an assembled underground station structure.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An assembly type structure spilled slurry connecting node, comprising a first member which is applied in advance and a second member which is connected to the top of the first member in later period, characterized in that: a grouting groove is reserved at the top of the first component, assembly section steel is arranged at the bottom of the second component, and the assembly section steel comprises an embedded section embedded in the second component and an insertion section protruding out of the second component; the inserting section is inserted into the grouting groove, a gap between the inserting section and the grouting groove is filled with slurry which is poured into the grouting groove in advance, and the slurry partially overflows to a position between the second component and the first component.
2. The fabricated structural grout-overflowing connecting node of claim 1, wherein: the grouting groove is formed by enclosing a plurality of steel wall plates pre-embedded in the first component.
3. The fabricated structural grout spreading connection node of claim 2, wherein: the first member is a reinforced concrete member, and at least part of the steel wall plate is welded with the steel bar structure in the first member.
4. The fabricated structural grout spreading connection node of claim 3, wherein: the conversion wallboard that some steel wallboards set up for being adjacent to the structure owner muscle in the first component, the conversion wallboard includes the pterygoid lamina section that forms as the body section of grout groove cell wall and the both ends level extension of body section, this body section reaches the pterygoid lamina section all welds with adjacent structure owner muscle.
5. The fabricated structural grout spreading connection node of claim 2, wherein: at least part of the steel wall plate is provided with a shear-resistant stud which extends into the first component.
6. The fabricated structural grout-overflowing connecting node of claim 1, wherein: and the embedded section is welded with the main structural rib in the second component.
7. The fabricated structural grout-overflowing connecting node of claim 1, wherein: and the embedded section is provided with shear-resistant studs extending into the second component.
8. The fabricated structural grout-overflowing connecting node of claim 1, wherein: and the inserting section and/or the wall of the grouting groove are/is provided with a protruding block.
9. The fabricated structural grout joint of any of claims 1 to 8, wherein: the inserting section is in a straight shape, an I shape, a C shape or an H shape, and the shape of the grouting groove is matched with that of the inserting section.
10. The fabricated structural grout joint of any of claims 1 to 8, wherein: a plurality of grouting grooves are reserved in the top of the first component, and a corresponding number of assembly section steels are configured on the second component.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123235524.3U CN216892864U (en) | 2021-12-21 | 2021-12-21 | Slurry overflowing connecting joint of assembly type structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123235524.3U CN216892864U (en) | 2021-12-21 | 2021-12-21 | Slurry overflowing connecting joint of assembly type structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215171A (en) * | 2021-12-21 | 2022-03-22 | 中铁第四勘察设计院集团有限公司 | Slurry overflowing connecting joint of assembly type structure and construction method thereof |
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2021
- 2021-12-21 CN CN202123235524.3U patent/CN216892864U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215171A (en) * | 2021-12-21 | 2022-03-22 | 中铁第四勘察设计院集团有限公司 | Slurry overflowing connecting joint of assembly type structure and construction method thereof |
| CN114215171B (en) * | 2021-12-21 | 2023-08-29 | 中铁第四勘察设计院集团有限公司 | Assembled structure slurry overflow connection node and construction method thereof |
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