CN210658950U - Assembled concrete composite beam and building - Google Patents
Assembled concrete composite beam and building Download PDFInfo
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- CN210658950U CN210658950U CN201921263810.0U CN201921263810U CN210658950U CN 210658950 U CN210658950 U CN 210658950U CN 201921263810 U CN201921263810 U CN 201921263810U CN 210658950 U CN210658950 U CN 210658950U
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Abstract
The utility model discloses an assembled concrete superposed beam and building, will the coincide face of precast concrete roof beam designs into the recess form, the connection face of roof beam coincide layer designs into and recess assorted shape. The area of the contact surface between the upper half part and the lower half part of the composite beam can be effectively increased through the design of the groove-shaped composite surface, so that the connection strength of the upper half part and the lower half part of the composite beam is greatly increased. The first closed reinforcing steel bars of the precast concrete beam can be arranged in the second concrete layer and only partially exposed out of the concrete, and the first closed reinforcing steel bars do not need to penetrate through the upper longitudinal steel bars of the upper half part of the superposed beam. And the third closed reinforcing steel bars of the beam superposed layer are arranged in the intervals of the first closed reinforcing steel bars and are connected into a whole by utilizing the first concrete layer, so that the integral strength of the fabricated concrete superposed beam is ensured. The process that the longitudinal bar penetrates through the closed reinforcing steel bar is omitted, the construction difficulty is greatly reduced, and the construction efficiency is improved.
Description
Technical Field
The utility model belongs to the building field especially relates to an assembled concrete composite beam and building.
Background
At present, the prefabricated building is widely popularized, and the reinforcing bar structure in the existing prefabricated concrete composite beam is completely the same as that of a cast-in-place beam. Only when the beam is prefabricated in a factory, the upper half part of the beam is not poured, only the lower half part is poured, the upper half part is left to be poured on site, and the lower half part is used as a bottom die in the process of pouring on site. In addition, the upper longitudinal bars of the beam are also bound on site, and the lower sections of the lower reinforcing bars and the stirrups are poured in the lower half beam in advance. Such a composite beam in the prior art has a problem: because the antidetonation needs, the interior reinforcement of roof beam need be made and is sealed the stirrup, especially the stirrup in beam-end stirrup encryption district, and the strict requirement is made and is sealed the stirrup more, and this makes and is very inconvenient when wearing roof beam upper portion longitudinal reinforcement in the stirrup of latter half roof beam, seriously influences the efficiency of construction. In addition, the joint of the upper half part and the lower half part of the existing fabricated concrete prefabricated composite beam is of a planar structure, which may cause insufficient connection strength of the upper half part and the lower half part of the fabricated concrete prefabricated composite beam, and further cause that the mechanical property of the fabricated concrete prefabricated composite beam structure in the prior art is lower than that of a cast-in-place beam.
Therefore, it is necessary to provide a fabricated concrete composite beam which can enhance the connection strength between the upper half and the lower half of the beam.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an assembled concrete superposed beam for the mechanical properties of solving among the prior art assembled concrete prefabricated superposed beam structure is less than the mechanical properties's of cast-in-place roof beam problem.
In order to solve the technical problem, the utility model discloses an aspect provides an assembled concrete superposed beam, including precast concrete roof beam, first concrete layer and roof beam coincide layer, roof beam coincide layer part sets up in the first concrete, the precast concrete roof beam has a coincide face, the coincide face is the flute profile, roof beam coincide layer have one with the face is connected to coincide face shape matching, the coincide face with it passes through to be connected the face first concrete layer is connected so that the precast concrete roof beam with the roof beam coincide layer is connected.
Optionally, the precast concrete beam includes a plurality of first closed reinforcing steel bars and a second concrete layer, the plurality of first closed reinforcing steel bars are arranged in parallel along a first direction at intervals according to a plane where the first closed reinforcing steel bars are located, and the first closed reinforcing steel bars are partially arranged in the second concrete layer;
the first closed reinforcing steel bar is provided with an open edge at one side close to the beam overlapping layer, and the open edge is exposed out of the overlapping layer;
the opening edge is arranged in the first concrete layer so that the overlapping surface is connected with the connecting surface;
the first direction is an extending direction of the precast concrete beam.
Optionally, the beam overlapping layer includes a plurality of second closed reinforcing steel bars, a plurality of third closed reinforcing steel bars, and a plurality of upper longitudinal reinforcing steel bars;
the second closed reinforcing steel bars are arranged in parallel along the first direction at intervals according to the plane where the second closed reinforcing steel bars are located;
the upper longitudinal bar is connected with one side of the second closed reinforcing steel bar, which is far away from the overlapping surface, and two ends of the upper longitudinal bar are exposed outside the first concrete layer;
the plane of the third closed reinforcing steel bar is parallel to the plane of the second closed reinforcing steel bar and is arranged close to the second closed reinforcing steel bar, the third closed reinforcing steel bar and the second closed reinforcing steel bar form a T-shaped reinforcing steel bar cage, and one end, close to the overlapping face, of the T-shaped reinforcing steel bar cage is provided with the connecting face.
Optionally, the number of the second closed reinforcing bars is equal to that of the third closed reinforcing bars, and each second closed reinforcing bar is correspondingly abutted against one third closed reinforcing bar.
Optionally, the number of the second enclosing reinforcing bars is smaller than the number of the third enclosing reinforcing bars, and at least one third enclosing reinforcing bar is correspondingly arranged close to each second enclosing reinforcing bar.
Optionally, the precast concrete beam further includes a construction steel bar, the construction steel bar passes through the first closed steel bar and is disposed along the first direction, the construction steel bar is connected to two sides of the first closed steel bar, the construction steel bar is partially disposed in the second concrete layer, two ends of the construction steel bar are exposed outside the second concrete layer, and two sides of the first closed steel bar are two sides adjacent to the overlapping surface.
Optionally, the number of the construction steel bars is multiple.
Optionally, the lamination surface is a rough surface.
A second aspect of the present invention provides a building, including any one of the above-described features.
The utility model provides an assembled concrete superposed beam, will the coincide face of precast concrete roof beam (also the latter half of superposed beam) designs into the groove form, correspondingly, the connection face of roof beam superimposed layer (also the first half of superposed beam) designs into and recess assorted shape. The area of the contact surface between the upper half part and the lower half part of the composite beam can be effectively increased through the design of the groove-shaped composite surface, so that the connection strength of the upper half part and the lower half part of the composite beam is greatly increased.
In addition, the first closed reinforcing steel bars of the precast concrete beam can be arranged in the second concrete layer and only partially exposed out of the concrete, and unlike the prior art, the first closed reinforcing steel bars do not need to penetrate through the upper longitudinal steel bars of the upper half part of the composite beam. And the third closed reinforcing steel bars of the beam superposed layer are arranged in the intervals of the first closed reinforcing steel bars and are connected into a whole by utilizing the first concrete layer, so that the integral strength of the fabricated concrete superposed beam is ensured. The process that the longitudinal bar penetrates through the closed reinforcing steel bar is omitted, the construction difficulty is greatly reduced, and the construction efficiency is improved.
The utility model discloses still provide a building, utilize assembled concrete composite beam.
Drawings
Fig. 1 is a schematic structural diagram of a precast concrete beam in an assembled concrete composite beam according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a precast concrete beam and a beam overlapping layer in an assembled concrete overlapping beam provided by an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a process of matching a precast concrete beam and a beam overlapping layer in an assembled concrete overlapping beam according to an embodiment of the present invention;
fig. 4 is a schematic view of an assembled concrete composite beam according to an embodiment of the present invention;
10-precast concrete beam, 101-first closed reinforcing steel bar, 102-constructional reinforcing steel bar, 20-beam laminated layer, 201-second closed reinforcing steel bar, 202-third closed reinforcing steel bar and 203-upper longitudinal steel bar.
Detailed Description
The following description of the embodiments of the present invention will be described in more detail with reference to the drawings. Advantages and features of the present invention will become apparent from the following description and claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
As shown in fig. 1 to 4, an embodiment of the present invention provides an assembled concrete composite beam, including a precast concrete beam 10, a first concrete layer, and a beam composite layer 20. Precast concrete roof beam 10 has a coincide face, the coincide face is the recess form, roof beam coincide layer 20 have one with the face is connected that coincide face shape matches, the coincide face with it passes through to be connected the face is connected so that precast concrete roof beam 10 with roof beam coincide layer 20 is connected.
Including precast concrete roof beam, first concrete layer and roof beam coincide layer, roof beam coincide layer part sets up in the first concrete, precast concrete roof beam has an coincide face, the coincide face is the recess form, roof beam coincide layer have one with the face is connected of coincide face shape matching, the coincide face with it passes through to be connected the face first concrete layer is connected so that precast concrete roof beam with the roof beam coincide layer is connected.
Compared with the planar superposed surface in the prior art, the embodiment of the utility model provides a will the superposed surface design of precast concrete roof beam 10 (also the latter half of superposed beam) becomes the groove form, correspondingly, the connection face design of roof beam superimposed layer 20 (also the first half of superposed beam) becomes with recess assorted shape. The area of the contact surface between the upper half part and the lower half part of the composite beam can be effectively increased through the design of the groove-shaped composite surface, so that the connection strength of the upper half part and the lower half part of the composite beam is greatly increased. The overlapping surface of the precast concrete beam 10 is made into a groove form, so that the bonding force between the cast-in-place concrete (the first concrete layer) and the precast concrete (the concrete in the precast concrete beam 10) can be increased.
During on-site construction, the precast concrete beam 10 which is precast is placed at a position to be constructed, and the beam overlapping layer 20 is placed at a position corresponding to the overlapping surface. And then erecting a template at a corresponding position, finally pouring concrete, and removing the template after the maintenance is finished to obtain the fabricated concrete superposed beam.
Optionally, as shown in fig. 1, the precast concrete beam 10 includes a plurality of first closed reinforcing bars 101 and a second concrete layer, where the number of the first closed reinforcing bars 101 is multiple, the first closed reinforcing bars 101 are arranged in parallel and at intervals along a first direction according to a plane where the first closed reinforcing bars 101 are located, and a part of the first closed reinforcing bars 101 is arranged in the second concrete layer. The first closed reinforcement 101 has an open edge on a side adjacent to the beam stack 20, the open edge being exposed outside the stack. The opening edge is arranged in the first concrete layer so that the overlapping surface is connected with the connecting surface, and the first direction is the extending direction of the precast concrete beam 10.
Optionally, the precast concrete beam 10 further includes construction bars 102, and the construction bars 102 pass through the first closing bars 101 and are arranged in the first direction. And, the construction rebar 102 is connected to both sides of the first enclosing rebar 101, the construction rebar 102 being partially disposed within the second concrete layer. And two ends of the construction steel bar 102 are exposed outside the second concrete layer, and two side edges of the first closed steel bar 101 are two side edges adjacent to the overlapping surface. It should be noted that the number of the construction bars 102 in the embodiment of the present invention is 6, but is not limited to 6, and other numbers are also possible, and are not limited herein.
The precast concrete beam 10 may be manufactured by the following steps:
the first step is as follows: manufacturing the first closed reinforcing steel bar 101;
the second step is that: binding the first closure bar 101 and the construction bar 102 to form a reinforcement cage;
the third step: erecting a template, and pouring concrete on the reinforcement cage;
the fourth step: and finishing maintenance and removing the template.
The first closed reinforcing steel bar 101 may be formed by bending a straight reinforcing steel bar, and both ends of the reinforcing steel bar may be welded to change the straight reinforcing steel bar into an annular closed reinforcing steel bar. When erecting the formwork, attention is paid to designing the overlapping surface to be a groove shape, and as shown in fig. 1, the upper position of the precast concrete beam 10 is set to be the overlapping surface, so the shape of the formwork corresponds to the shape and size of the groove. In order to further improve the connection performance of the lamination surface, the lamination surface can be designed to be a rough surface. The rough surface means that the overlapping surface of the precast concrete beam 10 is uneven or aggregates are exposed.
Optionally, as shown in fig. 2, the beam stack 20 includes a plurality of second closed reinforcing bars 201, a plurality of third closed reinforcing bars 202, and a plurality of upper longitudinal reinforcing bars 203, where the number of the second closed reinforcing bars 201 and the number of the third closed reinforcing bars 202 are both plural. The second closed reinforcing steel bars 201 are arranged in parallel along the first direction at intervals according to the plane where the second closed reinforcing steel bars 201 are located. The upper longitudinal rib 203 is connected with one side, far away from the overlapped surface, of the second closed reinforcing steel bar 201, and two ends of the upper longitudinal rib 203 are exposed outside the first concrete layer. The plane where the third closed reinforcing steel bar 202 is located is parallel to the plane where the second closed reinforcing steel bar 201 is located, and is arranged close to the second closed reinforcing steel bar 201, the third closed reinforcing steel bar 202 and the second closed reinforcing steel bar 201 form a T-shaped reinforcing steel bar cage, and one end, close to the overlapping face, of the T-shaped reinforcing steel bar cage is provided with the connecting face.
During on-site construction, the upper longitudinal bar 203 of the upper half part of the composite beam does not need to penetrate through the first closed reinforcing steel bar 101. The first closed reinforcing steel bar 101 does not need to penetrate through the upper longitudinal bar 203 of the upper half part of the superposed beam, the process that the longitudinal bar penetrates through the closed reinforcing steel bar is omitted, the construction difficulty is greatly reduced, and the construction efficiency is improved. Only the third closed reinforcing bars 202 of the beam overlapping layer 20 need to be arranged in the intervals of the first closed reinforcing bars 101 and connected into a whole by the first concrete layer, so that the overall strength of the fabricated concrete overlapping beam is ensured. As shown in fig. 3, during on-site construction, a lower precast beam is installed, then the upper steel bar with the T-shaped steel bar is put in place, the vertical part of the T-shape is inserted into the groove of the precast concrete superposed surface, then a reinforcement cage is bound according to the traditional method for binding the beam steel bar, and finally a superposed layer of concrete (a first concrete layer) is poured. The final fabricated concrete composite beam is shown in fig. 4.
It should be noted that the number of the second enclosing reinforcing bars 201 and the number of the third enclosing reinforcing bars 202 may be equal, and each of the second enclosing reinforcing bars 201 may be correspondingly disposed with one of the third enclosing reinforcing bars 202. There may be at least one third enclosing reinforcing bar 202 arranged adjacent to part of the second enclosing reinforcing bars 201, and no third enclosing reinforcing bar 202 arranged adjacent to the remaining second enclosing reinforcing bars 201.
In addition, the number of the second enclosing reinforcing bars 201 may be smaller than the number of the third enclosing reinforcing bars 202, and at least one third enclosing reinforcing bar 202 is correspondingly arranged on each second enclosing reinforcing bar 201.
The embodiment of the utility model provides a still provide a building, the building utilizes any kind in the above-mentioned feature description assembled concrete composite beam.
To sum up, the utility model provides an assembled concrete composite beam, will the coincide face of precast concrete roof beam (also the latter half of composite beam) designs into the groove form, correspondingly ground, the connection face of roof beam coincide layer (also the first half of composite beam) designs into with groove phase-matched shape. The area of the contact surface between the upper half part and the lower half part of the composite beam can be effectively increased through the design of the groove-shaped composite surface, so that the connection strength of the upper half part and the lower half part of the composite beam is greatly increased.
In addition, the first closed reinforcing steel bars of the precast concrete beam can be arranged in the second concrete layer and only partially exposed out of the concrete, and unlike the prior art, the first closed reinforcing steel bars do not need to penetrate through the upper longitudinal steel bars of the upper half part of the composite beam. And the third closed reinforcing steel bars of the beam superposed layer are arranged in the intervals of the first closed reinforcing steel bars and are connected into a whole by utilizing the first concrete layer, so that the integral strength of the fabricated concrete superposed beam is ensured. The process that the longitudinal bar penetrates through the closed reinforcing steel bar is omitted, the construction difficulty is greatly reduced, and the construction efficiency is improved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example" or "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. And the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.
Claims (9)
1. The utility model provides an assembled concrete superposed beam, its characterized in that includes precast concrete roof beam, first concrete layer and roof beam coincide layer, roof beam coincide layer part sets up in the first concrete, precast concrete roof beam has a coincide face, the coincide face is the recess form, roof beam coincide layer have one with the face is connected to coincide face shape matching, the coincide face with it passes through to be connected the face first concrete layer is connected so that precast concrete roof beam with the roof beam coincide layer is connected.
2. The fabricated concrete composite beam according to claim 1, wherein the precast concrete beam comprises a plurality of first closed reinforcing bars and a second concrete layer, the plurality of first closed reinforcing bars are arranged in parallel along a first direction at intervals according to a plane in which the first closed reinforcing bars are located, and the first closed reinforcing bars are partially arranged in the second concrete layer;
the first closed reinforcing steel bar is provided with an open edge at one side close to the beam overlapping layer, and the open edge is exposed out of the overlapping layer;
the opening edge is arranged in the first concrete layer so that the overlapping surface is connected with the connecting surface;
the first direction is an extending direction of the precast concrete beam.
3. The fabricated concrete composite beam according to claim 2, wherein the beam lamination layer comprises a plurality of second closed reinforcing bars, a plurality of third closed reinforcing bars and a plurality of upper longitudinal reinforcing bars;
the second closed reinforcing steel bars are arranged in parallel along the first direction at intervals according to the plane where the second closed reinforcing steel bars are located;
the upper longitudinal bar is connected with one side of the second closed reinforcing steel bar, which is far away from the overlapping surface, and two ends of the upper longitudinal bar are exposed outside the first concrete layer;
the plane of the third closed reinforcing steel bar is parallel to the plane of the second closed reinforcing steel bar and is arranged close to the second closed reinforcing steel bar, the third closed reinforcing steel bar and the second closed reinforcing steel bar form a T-shaped reinforcing steel bar cage, and one end, close to the overlapping face, of the T-shaped reinforcing steel bar cage is provided with the connecting face.
4. An assembled concrete composite beam according to claim 3, wherein the number of the second reinforcing closure bars is equal to the number of the third reinforcing closure bars, and each of the second reinforcing closure bars is correspondingly abutted against one of the third reinforcing closure bars.
5. An assembled concrete composite beam according to claim 3, wherein the number of said second closed reinforcing bars is smaller than the number of said third closed reinforcing bars, and at least one of said third closed reinforcing bars is disposed in each of said second closed reinforcing bars in corresponding abutment therewith.
6. An assembled concrete composite beam according to claim 2, wherein the precast concrete beam further comprises construction bars passing through the first closed bars and disposed in the first direction, and the construction bars are coupled to both side edges of the first closed bars, the construction bars are partially disposed in the second concrete layer, and both ends of the construction bars are exposed to the outside of the second concrete layer, and both side edges of the first closed bars are adjacent to the overlapping surfaces.
7. An assembled concrete composite beam according to claim 6, wherein the number of the construction reinforcing bars is plural.
8. The fabricated concrete composite beam according to claim 1, wherein the overlapping surface is a rough surface.
9. A building comprising a fabricated concrete composite beam according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921263810.0U CN210658950U (en) | 2019-08-06 | 2019-08-06 | Assembled concrete composite beam and building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921263810.0U CN210658950U (en) | 2019-08-06 | 2019-08-06 | Assembled concrete composite beam and building |
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| Publication Number | Publication Date |
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| CN210658950U true CN210658950U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921263810.0U Active CN210658950U (en) | 2019-08-06 | 2019-08-06 | Assembled concrete composite beam and building |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338433A (en) * | 2021-06-10 | 2021-09-03 | 江苏科技大学 | Steel-concrete combined beam column pin type mortise-tenon joint connecting device and assembling method |
| CN113482237A (en) * | 2021-07-21 | 2021-10-08 | 重庆大学 | Reinforced concrete composite T beam adopting prefabricated U-shaped ECC permanent template |
-
2019
- 2019-08-06 CN CN201921263810.0U patent/CN210658950U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338433A (en) * | 2021-06-10 | 2021-09-03 | 江苏科技大学 | Steel-concrete combined beam column pin type mortise-tenon joint connecting device and assembling method |
| CN113482237A (en) * | 2021-07-21 | 2021-10-08 | 重庆大学 | Reinforced concrete composite T beam adopting prefabricated U-shaped ECC permanent template |
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Address after: 200040 floors 6-9, South Building, No. 258, Shimen 2nd Road, Jing'an District, Shanghai Patentee after: Shanghai Huajian Engineering Construction Consulting Co.,Ltd. Address before: 200041, No. two, 258, Shimen Road, Shanghai, Jingan District Patentee before: Shanghai Xian Dai Architecture, Engineering & Consulting Co.,Ltd. |
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