Large-span composite beam prefabricated part capable of achieving reliable transportation and hoisting, composite beam and building structure

Abstract

The utility model discloses a large-span composite beam prefabricated part capable of achieving reliable transportation and hoisting, a composite beam and a building structure. The composite beam prefabricated part comprises a prefabricated truss reinforced concrete lower chord member, a prefabricated truss steel bar upper chord member and a prefabricated truss steel bar vertical web member. The prefabricated truss steel bar upper chord member is fixedly arranged above the prefabricated truss steel bar concrete lower chord member, and the prefabricated truss steel bar vertical web member is fixedly arranged in the prefabricated truss steel bar concrete lower chord member. The prefabricated truss reinforced concrete lower chord is matched with the prefabricated truss steel bar upper chord and the prefabricated truss steel bar vertical web members, so that a large-span superposed beam prefabricated part can be prefabricated in a factory, and a truss system formed by the prefabricated part has reliable structural rigidity; and reliable transportation and hoisting of the prefabricated part of the large-span superposed beam can be realized.

Description

TECHNICAL FIELD

[0001] The utility model discloses a composite beam prefabricated part, especially a large-span composite beam prefabricated part, composite beam and building structure which can realize reliable transportation and hoisting, and belongs to the technical field of building engineering. BACKGROUND

[0002] The building prefabricated part refers to the building component manufactured in advance in the factory or production facility, and the component is transported to the construction site for assembly and installation after being completed, and the prefabricated part usually includes various types of components, such as wallboard, floor, beam, column and the like.

[0003] The prefabricated part usually adopts the standardized design and production process, can be mass-produced, and ensures the consistency and quality of the component. Since the prefabricated part is manufactured in the factory, only assembly is needed on the site, the construction period is significantly shortened, the complexity and manpower demand of the site construction are reduced, and the safety is improved. The factory environment is easy to conduct strict quality control, the produced component is relatively stable, the problem of affecting the construction quality due to weather and other factors is reduced, and the prefabricated process can more effectively utilize raw materials and reduce building waste.

[0004] The prefabricated beam is a typical component commonly used in buildings, is usually manufactured in the factory, and is then transported to the construction site for installation, and plays an indispensable role in building engineering. Influenced by the structure of the prefabricated beam, on the one hand, the volume of the prefabricated beam cannot be too large, and exactly speaking, the thickness of the prefabricated beam cannot be too thick, otherwise the hoisting and transportation will be affected due to the excessive weight of the prefabricated beam; on the other hand, due to the limited thickness of the prefabricated beam, the length of the prefabricated beam is limited, and if the length of the prefabricated beam is too long, the prefabricated beam is prone to fracture and damage during hoisting and transportation due to the influence of the structure, so the length of the prefabricated beam is affected, and when large-span construction is needed, the cast-in-place process is usually used, and the prefabricated beam or composite beam process cannot be used, which causes certain inconvenience to building construction. SUMMARY

[0005] In view of the defects of the prefabricated beam in the prior art that the length of the prefabricated beam is limited due to the structure, the utility model provides a large-span composite beam prefabricated part, composite beam and building structure which can realize reliable transportation and hoisting, and the prefabricated truss reinforced concrete lower chord is matched with the prefabricated truss reinforced upper chord and the prefabricated truss reinforced vertical web structure, the large-span composite beam prefabricated part can be prefabricated in the factory, so that the above problems are solved.

[0006] The utility model discloses a large-span composite beam prefabricated part of reliable transportation and hoisting can be realized, and the utility model discloses a large-span composite beam of reliable transportation and hoisting can be realized, and the utility model discloses a building structure of the composite beam, the utility model discloses a building structure of the composite beam, and the utility model discloses a building structure of the composite beam.

[0007] A kind of composite beam using the large-span composite beam prefabricated part of reliable transportation and hoisting as described above, composite beam includes composite beam prefabricated part and the composite beam cast-in-place part formed on composite beam prefabricated part by cast-in-place process, composite beam prefabricated part and composite beam cast-in-place part jointly constitute composite beam, one side or both sides of composite beam is fixedly provided with support structure for supporting floor, support structure uses connecting support or eaves ear, connecting support is fixedly installed together with composite beam by through-tightening bolt.

[0008] A kind of building structure using the composite beam as described above, building mechanism includes longitudinal support structure, composite beam and floor, composite beam is lapped on longitudinal support structure, floor is lapped on composite beam, longitudinal support structure uses frame column or wall body, adjacent frame column can also be provided with intercolumnar concealed beam, floor includes floor prefabricated layer and floor cast-in-place layer, floor prefabricated layer is lapped on composite beam or the support structure of composite beam, and longitudinal reinforcement of composite cast-in-place layer is arranged on floor prefabricated layer, and additional reinforcement is arranged at the joint between adjacent floor prefabricated layer, and floor cast-in-place layer is formed on floor prefabricated layer by cast-in-place process, and floor prefabricated layer and floor cast-in-place layer jointly constitute floor.

[0009] The utility model discloses a further technical scheme that solves its technical problems includes:

[0010] The prefabricated truss reinforced concrete bottom chord includes beam bottom reinforcement, stirrup and concrete pouring layer, the beam bottom reinforcement is arranged along the length direction of the prefabricated truss reinforced concrete bottom chord, the stirrup is perpendicular to the length direction of the prefabricated truss reinforced concrete bottom chord, the beam bottom reinforcement and the stirrup are welded or tied together, the concrete pouring layer is poured outside the beam bottom reinforcement, and part of the stirrup extends above the concrete pouring layer.

[0011] More than one row of beam bottom reinforcement is provided, and more than one beam bottom reinforcement is provided in each row, preferably, two rows of beam bottom reinforcement are provided, and eight beam bottom reinforcements are provided in each row.

[0012] More than one row of beam waist reinforcement is provided in the concrete pouring layer, and more than one beam waist reinforcement is provided in each row, preferably, one row of beam waist reinforcement is provided, and two beam waist reinforcements are provided in each row and arranged on both sides of the concrete pouring layer, and the beam waist reinforcement and the stirrup are welded or tied together.

[0013] The stirrup is provided with two groups, the interval between adjacent stirrups is 80mm-150mm, and preferably 100mm.

[0014] The prefabricated truss steel reinforcement upper chord further comprises one or more rows of beam waist bars, preferably two rows of beam waist bars, and each row comprises two beam waist bars.

[0015] The prefabricated truss steel reinforcement upper chord further comprises one or more rows of beam waist bars, preferably two rows of beam waist bars, and each row comprises two beam waist bars.

[0016] The prefabricated truss steel reinforcement upper chord further comprises one or more rows of beam waist bars, preferably two rows of beam waist bars, and each row comprises two beam waist bars.

[0017] The prefabricated truss steel reinforcement upper chord further comprises one or more rows of beam waist bars, preferably two rows of beam waist bars, and each row comprises two beam waist bars.

[0018] The prefabricated truss steel reinforcement upper chord further comprises one or more rows of beam waist bars, preferably two rows of beam waist bars, and each row comprises two beam waist bars. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The prefabricated truss steel reinforcement upper chord further comprises one or more rows of beam waist bars, preferably two rows of beam waist bars, and each row comprises two beam waist bars.

[0020] Figure 2 The prefabricated truss steel reinforcement upper chord further comprises one or more rows of beam waist bars, preferably two rows of beam waist bars, and each row comprises two beam waist bars.

[0021] Figure 3 is a schematic view of the cross section structure of the composite beam in the A-A section. Figure 2

[0022] Figure 4 is a schematic view of the cross section structure of the prefabricated section of the composite beam in the A-A section. Figure 2

[0023] Figure 5 is a schematic view of the cross section structure of the composite beam in the B-B section. Figure 2

[0024] Figure 6 Figure 2 is a schematic view of the cross section structure of the prefabricated section of the composite beam in the B-B section.

[0025] Figure 7 Figure 2 is a schematic view of the cross section structure of the composite beam in the C-C section.

[0026] Figure 8 Figure 2 is a schematic view of the cross section structure of the prefabricated section of the composite beam in the C-C section.

[0027] Figure 9 is a schematic view of the composite beam structure using the composite beam structure.

[0028] Figure 10 is a schematic view of the composite beam reinforcement structure using the composite beam structure.

[0029] In the figure, 1-frame column, 2-intercolumnar concealed beam, 3-composite beam prefabricated section, 4-joint additional reinforcement, 5-composite cast-in-situ layer longitudinal reinforcement, 6-beam bottom reinforcement, 7-beam top longitudinal reinforcement, 8-beam top support additional reinforcement, 9-welded connection longitudinal reinforcement at the support, 10-hole opening reinforcing upper stirrup, 11-hole opening reinforcing lower stirrup, 12-prefabricated truss steel vertical web member, 13-hole opening reinforcing upper longitudinal reinforcement, 14-hole opening reinforcing lower longitudinal reinforcement, 15-prefabricated truss reinforced concrete lower chord, 16-prefabricated truss upper chord, 17-composite beam cast-in-situ section, 18-floor slab prefabricated layer, 19-floor slab cast-in-situ layer, 20-stirrup, 21-beam waist reinforcement, 22-post-closed stirrup pulling hook, 23-through fastening bolt, 24-connection support. DETAILED DESCRIPTION

[0030] The embodiment is the preferred embodiment of the utility model, and other embodiments with the same or similar principles and basic structures as the embodiment are within the protection scope of the utility model.

[0031] Please refer to the attached drawings Figure 2 to the attached drawings Figure 10 ​​​​​​This utility model primarily protects a precast large-span composite beam component capable of reliable transportation and hoisting. It mainly comprises a precast reinforced concrete lower chord 15, a precast reinforced upper chord 16, and precast reinforced vertical web members 12. The precast reinforced upper chord 16 is fixedly positioned above the precast reinforced concrete lower chord 15, and the precast reinforced vertical web members 12 are fixedly positioned inside the precast reinforced concrete lower chord 15. The precast reinforced concrete lower chord 15, precast reinforced upper chord 16, and precast reinforced vertical web members 12 are precast in a factory to form the precast portion of the large-span composite beam. The precast reinforced upper chord 16 strengthens the structural strength of the entire precast composite beam component, ensuring it does not break or become damaged during hoisting and transportation. The truss system formed by this precast portion has reliable structural stiffness, enabling reliable transportation and hoisting of the precast large-span composite beam component.

[0032] In this embodiment, the precast reinforced concrete lower chord 15 includes a bottom beam reinforcement 6, stirrups 20, and a concrete pouring layer. The bottom beam reinforcement 6 is arranged along the length direction of the precast reinforced concrete lower chord 15 (or it can be said that the bottom beam reinforcement 6 is parallel to the length direction of the precast reinforced concrete lower chord 15). The stirrups 20 are perpendicular to the length direction of the precast reinforced concrete lower chord 15. The bottom beam reinforcement 6 and the stirrups 20 are welded or tied together. A concrete pouring layer is poured outside the bottom beam reinforcement 6, thereby forming the main body of the precast reinforced concrete lower chord 15. Part of the stirrups 20 extend above the concrete pouring layer.

[0033] In this embodiment, the bottom reinforcement bars 6 of the beam are arranged in one or more rows, and each row of bottom reinforcement bars 6 is arranged with one or more bars. The specific number can be set according to actual needs. In this embodiment, the bottom reinforcement bars 6 of the beam are arranged in two rows, and each row is arranged with eight bars.

[0034] In this embodiment, a row or more of beam web reinforcement 21 is also provided in the concrete pouring layer. Each row of beam web reinforcement 21 has one or more bars. In this embodiment, the beam web reinforcement 21 is provided in a row, with two bars in each row, and is respectively provided on both sides of the concrete pouring layer. Preferably, the beam web reinforcement 21 is welded or tied together with the stirrups 20. In specific implementation, the specific number of beam web reinforcement 21 can be set according to actual needs.

[0035] In this embodiment, the stirrups 20 adopt a U-shaped structure, which can be defined as open stirrups, with the open portion extending to the outside of the concrete pouring layer. In specific implementation, a closed structure can also be used. In this embodiment, two sets of stirrups 20 are provided, that is, two sets of U-shaped open stirrups, meaning that there are four reinforcing bars extending to the outside of the concrete pouring layer. In this embodiment, the spacing between adjacent stirrups 20 is 80mm~150mm, preferably 100mm.

[0036] In the embodiment, the prefabricated truss steel upper chord 16 includes the stirrup 20 extending to the outside portion of the concrete pouring layer and the beam top through bar 7, the beam top through bar 7 is arranged along the length direction of the prefabricated truss reinforced concrete lower chord 15 (also can be called that the beam top through bar 7 is parallel to the length direction of the prefabricated truss reinforced concrete lower chord 15), the beam top through bar 7 is connected together with the top of the stirrup 20 by welding or binding process, in the embodiment, the beam top through bar 7 is provided with four, respectively welded or bound together with the steel bars at the opening of the stirrup 20, in the specific implementation, the number of the beam top through bar 7 can also be set according to actual needs. When the stirrup 20 adopts the open stirrup, the top opening of the stirrup 20 is also fixedly provided with the rear closed stirrup pull hook 22 by welding or binding process, and the opening of the stirrup 20 is sealed.

[0037] In the embodiment, the prefabricated truss steel upper chord 16 further includes one row or more than one row of beam waist bars 21, each row of beam waist bars 21 is provided with one or more than one, in the embodiment, the beam waist bars 21 in the prefabricated truss steel upper chord 16 are provided with two rows, and each row is provided with two, preferably the beam waist bars 21 are welded or bound together with the stirrup 20, in the specific implementation, the specific number of the beam waist bars 21 can be set according to actual needs.

[0038] In the embodiment, the beam waist bars 21 are provided with three rows in total, one row is arranged in the concrete pouring layer, and the other two rows are arranged above the concrete pouring layer, in the specific implementation, the specific number can be set according to actual needs.

[0039] The large-span composite beam prefabricated part of the utility model can be provided with a hole for being used as a ventilation opening or passing through a ventilation pipe, water, electricity, equipment pipeline and the like, and the hole position needs to be reserved on the large-span composite beam prefabricated part which can be reliably transported and hoisted, in the embodiment, the hole position is provided with a hole reinforcing upper longitudinal reinforcement 13 above the hole position and is provided with a hole reinforcing lower longitudinal reinforcement 14 below the hole position, the hole reinforcing upper longitudinal reinforcement 13 and the hole reinforcing lower longitudinal reinforcement 14 are arranged along the length direction of a prefabricated truss reinforced concrete lower chord 15 (also can be called that the hole reinforcing upper longitudinal reinforcement 13 and the hole reinforcing lower longitudinal reinforcement 14 are parallel to the length direction of the prefabricated truss reinforced concrete lower chord 15), in the embodiment, the hole reinforcing upper longitudinal reinforcement 13 and the hole reinforcing lower longitudinal reinforcement 14 are respectively provided with four, the four hole reinforcing upper longitudinal reinforcements 13 and the four hole reinforcing lower longitudinal reinforcements 14 are connected together through welding or binding process and the stirrup 20, in the specific implementation, the number of the hole reinforcing upper longitudinal reinforcement 13 and the hole reinforcing lower longitudinal reinforcement 14 can also be set according to actual needs.

[0040] The utility model discloses a kind of composite beams using the above reliable transport and hoisting large-span composite beam prefabricated part, and the composite beam includes composite beam prefabricated part 3 and the composite beam cast-in-place part 17 formed on composite beam prefabricated part 3 by cast-in-place process, composite beam prefabricated part 3 and composite beam cast-in-place part 17 jointly constitute composite beam.

[0041] In the embodiment, the support structure for supporting the floor is fixed on one side or both sides of the composite beam, and in the embodiment, the support structure adopts the connecting support 24, which is fixed and installed with the composite beam through the penetrating fastening bolt 23.

[0042] The utility model discloses simultaneously protect a kind of building structure using above-mentioned composite beam, and the building mechanism mainly includes longitudinal support structure, composite beam and floor, and composite beam is overlapped on longitudinal support structure, and floor is overlapped on composite beam.

[0043] In the embodiment, the longitudinal support structure can adopt frame column 1 or wall (mainly load-bearing wall). Adjacent frame column 1 can also be provided with inter-column concealed beam 2.

[0044] In the embodiment, the floor includes floor prefabricated layer 18 and floor cast-in-place layer 19, and the floor prefabricated layer 18 is overlapped on the composite beam or the support structure of the composite beam. The floor prefabricated layer 18 is provided with composite cast-in-place layer longitudinal reinforcement 5, and the joint between adjacent floor prefabricated layers 18 is provided with joint additional reinforcement 4. The floor cast-in-place layer 19 is formed on the floor prefabricated layer 18 through cast-in-place process, and the floor prefabricated layer 18 and the floor cast-in-place layer 19 jointly constitute the floor.

[0045] The utility model adopts prefabricated truss reinforced concrete lower chord rod to cooperate with prefabricated truss reinforced upper chord rod and prefabricated truss reinforced vertical web member structure, which can realize the prefabrication of large-span composite beam in factory. The truss system formed by the prefabricated part has reliable structural rigidity, and reliable transportation and hoisting of the large-span composite beam prefabricated part can be realized.

Claims

1. A precast composite beam component capable of reliable transportation and hoisting, characterized in that: The composite beam prefabricated part comprises a prefabricated truss reinforced concrete lower chord (15), a prefabricated truss reinforced upper chord (16) and a prefabricated truss reinforced vertical web member (12), the prefabricated truss reinforced upper chord (16) is fixedly arranged above the prefabricated truss reinforced concrete lower chord (15), and the prefabricated truss reinforced vertical web member (12) is fixedly arranged in the prefabricated truss reinforced concrete lower chord (15); The prefabricated truss reinforced concrete lower chord (15) comprises a beam bottom bar (6), a stirrup (20) and a concrete pouring layer, the beam bottom bar (6) is arranged along the length direction of the prefabricated truss reinforced concrete lower chord (15), the stirrup (20) is perpendicular to the length direction of the prefabricated truss reinforced concrete lower chord (15), the beam bottom bar (6) and the stirrup (20) are welded or bound together, the beam bottom bar (6) is externally poured with the concrete pouring layer, and part of the stirrup (20) extends to above the concrete pouring layer. The prefabricated truss reinforced upper chord (16) comprises a stirrup (20) extending to the outside of the concrete pouring layer and a beam top longitudinal bar (7), the beam top longitudinal bar (7) is arranged along the length direction of the prefabricated truss reinforced concrete lower chord (15), the beam top longitudinal bar (7) is connected to the top of the stirrup (20) by welding or binding process, and the beam top longitudinal bar (7) is provided with four beam top longitudinal bars (7) which are welded or bound together with the steel bars at the openings of the stirrups (20).

2. The large-span superposed beam precast member capable of reliable transportation and hoisting according to claim 1, characterized in that: The beam bottom bar (6) is provided with more than one row, and each row of the beam bottom bar (6) is provided with more than one beam bottom bar (6).

3. The large-span superposed beam precast member capable of reliable transportation and hoisting according to claim 1, characterized in that: The concrete pouring layer is provided with more than one row of beam waist bars (21), and each row of the beam waist bars (21) is provided with more than one beam waist bar (21).

4. The large-span superposed beam precast member capable of reliable transportation and hoisting according to claim 1, characterized in that: The stirrup (20) adopts a U-shaped structure or a closed structure, and the stirrup (20) is provided with two groups, and the spacing between adjacent stirrups (20) is 80mm-150mm.

5. The large-span superposed beam precast member capable of reliable transportation and hoisting according to claim 1, characterized in that: The prefabricated truss reinforced upper chord (16) further comprises more than one row of beam waist bars (21), and each row of the beam waist bars (21) is provided with more than one beam waist bar (21).

6. The large-span superposed beam precast member capable of reliable transportation and hoisting according to claim 1, characterized in that: The prefabricated truss reinforced upper chord (16) further comprises more than one row of beam waist bars (21), and each row of the beam waist bars (21) is provided with more than one beam waist bar (21). The prefabricated truss reinforced upper chord (16) further comprises more than one row of beam waist bars (21), and each row of the beam waist bars (21) is provided with more than one beam waist bar (21).

7. A hybrid girder using the reliably transportable and hoistable long-span hybrid girder precast member according to any one of claims 1 to 6, characterized by: The composite beam comprises a composite beam prefabricated part (3) and a composite beam cast-in-situ part (17) formed on the composite beam prefabricated part (3) through a cast-in-situ process, the composite beam prefabricated part (3) and the composite beam cast-in-situ part (17) jointly constitute the composite beam, the composite beam is fixedly provided with a support structure for supporting the floor on one side or both sides, and the support structure adopts a connecting support (24) or a cantilever lug, the connecting support (24) is fixedly installed together with the composite beam through the penetrating fastening bolt (23).

8. A building structure employing the laminated beam according to claim 7, characterized by: The building structure comprises a longitudinal support structure, a composite beam and a floor, the composite beam is lapped on the longitudinal support structure, and the floor is lapped on the composite beam, the longitudinal support structure adopts a frame column (1) or a wall body, the adjacent frame columns (1) can be further provided with inter-column concealed beams (2), the floor comprises a floor prefabricated layer (18) and a floor cast-in-situ layer (19), the floor prefabricated layer (18) is lapped on the composite beam or the support structure of the composite beam, the floor prefabricated layer (18) is provided with longitudinal composite cast-in-situ layer reinforcement (5), the joint part between the adjacent floor prefabricated layers (18) is provided with a joint additional reinforcement (4), the floor cast-in-situ layer (19) is formed on the floor prefabricated layer (18) through a cast-in-situ process, and the floor prefabricated layer (18) and the floor cast-in-situ layer (19) jointly constitute the floor.

Images