CN210066816U - Assembled vault is striden no post underground structure greatly - Google Patents
Assembled vault is striden no post underground structure greatly Download PDFInfo
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- CN210066816U CN210066816U CN201920559641.9U CN201920559641U CN210066816U CN 210066816 U CN210066816 U CN 210066816U CN 201920559641 U CN201920559641 U CN 201920559641U CN 210066816 U CN210066816 U CN 210066816U
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Abstract
The utility model belongs to the field of underground engineering construction, and relates to an assembled vault large-span pillarless underground structure, which comprises an enclosure structure, a vault layer plate, a first layer plate and first side walls, wherein the vault layer plate and the first layer plate are arranged in the enclosure structure, and the first side walls are arranged on two sides of the first layer plate; the vault layer plate comprises a vault layer plate cast-in-place layer and two connected arc arch plate prefabricated members, wherein the ends of the two arc arch plate prefabricated members, which are far away from each other, are respectively connected with the two first side walls; and vault plywood cast-in-place layers are poured on the first side wall, between the arc arch slab prefabricated members and the first side wall, on the two arc arch slab prefabricated members and between the two arc arch slab prefabricated members. The assembled underground structure of the utility model has good building visual effect; through partial prefabricated member and cast-in-place layer formation coincide structure, can remove partial on-spot formwork, erect interim facilities such as scaffold frame from, save the time limit for a project to can effectively improve assembled underground structure's waterproof performance and whole atress performance.
Description
Technical Field
The utility model belongs to the technical field of underground works builds, concretely relates to assembled vault strides no post underground structure greatly.
Background
The existing open cut method for constructing an underground structure with an inner support foundation pit adopts the traditional construction technology of a cast-in-place reinforced concrete structure, the design process is complex, and the workload is large; in the field construction process, a large amount of labor force of multiple types is needed, the construction operation environment is poor, the construction process is complex, the construction speed is low, the influence of various weather and climate is great, and the construction quality is difficult to ensure. Meanwhile, a lot of waste construction waste is generated in the construction process, so that resources are wasted and the environment is polluted. The cast-in-place concrete structure construction management and control is uneven, various quality defects often appear in the appearance or the interior of the concrete structure due to various reasons after construction is completed, the later-stage repair difficulty is high, and the quality is difficult to guarantee.
With the progress of science and technology, the development of equipment manufacturing industry and the upgrading and transformation of industry, more and more work is carried out by replacing manpower with machines, and high technology replaces labor-intensive type and automatic control equipment replaces manual control. Various components (beams, plates, columns, walls) required in the field of building engineering will be gradually produced in batches in factories and then transported to the site for assembly.
With the development of the assembly type technology, partial assembly type design and construction technical schemes are developed in the underground structure, and some underground structures are only suitable for open excavation foundation pits with less underground water and adopting slope release or anchor cables (rods) and are not suitable for areas with inner supports and abundant underground water in the foundation pits; some parts only adopt an assembly type structure, the assembly degree is not high, and the assembly efficiency is low; and the underground space has a poor visual field due to the conventional pillar underground structure.
Disclosure of Invention
In order to overcome the not enough of above-mentioned prior art existence, the utility model aims at providing a no post underground structure is striden greatly to assembled vault, can effectively solve underground assembled structure waterproof problem and structural integrity problem, has realized building vision does not have the big space effect of post better.
In order to achieve the purpose, the technical scheme of the utility model is that the assembled vault large-span pillarless underground structure comprises an enclosure structure, a vault layer plate, a first layer plate and first side walls, wherein the vault layer plate and the first layer plate are arranged in the enclosure structure, and the first side walls are arranged on two sides of the first layer plate; the vault layer plate comprises a vault layer plate cast-in-place layer and two connected arc arch plate prefabricated members, wherein the ends of the two arc arch plate prefabricated members, which are far away from each other, are respectively connected with two first side walls; and vault plywood cast-in-place layers are poured on the first side wall, between the arc arch slab prefabricated members and the first side wall, on the two arc arch slab prefabricated members and between the two arc arch slab prefabricated members.
Further, the two arc-shaped arch plate prefabricated parts are on the same arc-shaped surface.
As an embodiment, the first side wall comprises a first side wall prefabricated member, and a first side wall cast-in-place layer is poured between the first side wall prefabricated member and the building envelope and between the first side wall prefabricated member and the first floor plate; the arc-shaped arch plate prefabricated member is connected with the top of the first side wall prefabricated member.
In another embodiment, the first side wall comprises a first side wall prefabricated member, and a first side wall cast-in-place connecting section is poured between the first side wall prefabricated member and the first floor.
Furthermore, the top of the first side wall prefabricated part is provided with a lapping surface matched with the end surface of the arc-shaped arch bar prefabricated part.
Furthermore, a second layer plate is arranged below the first layer plate, second side walls are arranged on two sides of the second layer plate, and two ends of the first layer plate are arranged on the two second side walls on the two sides respectively.
In one embodiment, the second side wall comprises a second side wall prefabricated member, and a second side wall cast-in-place layer is poured between the second side wall prefabricated member and the building envelope and between the second side wall prefabricated member and the second laminate.
In another embodiment, the second side wall comprises a second side wall prefabricated member, and a second side wall cast-in-place connecting section is poured between the bottom of the second side wall prefabricated member and the second laminate.
Furthermore, a middle upright post is arranged on the second layer plate, a middle longitudinal beam is arranged on the middle upright post, and the middle part of the first layer plate is arranged on the middle longitudinal beam.
As an embodiment, the first floor comprises a first floor cast-in-place layer and two first floor prefabricated members, two ends of each first floor prefabricated member are respectively arranged on the middle longitudinal beam and one of the second side wall prefabricated members, and the first floor cast-in-place layer is poured on the top of the second side wall, the top of the middle longitudinal beam and the first floor prefabricated members.
In another embodiment, the first floor comprises two first floor prefabricated parts, one end of each first floor prefabricated part is arranged on the second side wall, the other end of each first floor prefabricated part is arranged on the middle longitudinal beam, and a first floor cast-in-place connecting section is poured between the two first floor prefabricated parts.
Furthermore, a concrete cushion is arranged below the second layer plate, and a waterproof layer is constructed between the second layer plate and the concrete cushion.
Further, the second layer plate is a reinforced concrete cast-in-place layer; or the second layer plate comprises two second layer plate-side prefabricated members and a second layer plate-middle prefabricated member arranged between the two second layer plate-side prefabricated members, and a second layer plate cast-in-place connecting section is poured between the second layer plate-middle prefabricated member and the second layer plate-side prefabricated member.
Furthermore, a first groove is formed in one side, away from the enclosure structure, of the second layer plate side prefabricated member, a second groove is formed in one side, opposite to the first groove, of the second layer plate side prefabricated member, and the second layer plate cast-in-place connecting section is located between the first groove and the second groove.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the top of the assembled vault large-span pillarless underground structure provided by the utility model adopts a vault laminate, thereby realizing the effect of column-free vault large space and having good visual effect of vault decoration buildings;
(2) the assembled vault long-span pillarless underground structure provided by the utility model has wide application range, forms a superposed structure through the prefabricated member and the cast-in-place layer, can remove part of temporary facilities such as on-site formwork erecting and scaffold erecting, saves construction period, and can effectively improve the waterproof performance and the integral stress performance of the assembled underground structure;
(3) the assembled vault long-span pillarless underground structure provided by the utility model adopts a reasonable component partitioning scheme, so that the size and weight of a single prefabricated component can be reduced, the size and weight of the prefabricated component can meet the requirements of on-site hoisting and assembly of a supporting foundation pit, the transportation of the prefabricated component is convenient, and the industrialized popularization and application can be better realized;
(4) the utility model provides a cast-in-place 'wet node' is adopted at the joint of the side wall prefabricated member and the laminate prefabricated member, the joint between the laminate prefabricated members and the joint of the laminate prefabricated member and the middle longitudinal beam of the fabricated vault long-span pillarless underground structure, and the fabricated underground structure has good waterproofness and integrity;
(5) the utility model provides a no post underground structure of assembled vault stride greatly has prefab size standardization, reduces design work load, improves production efficiency, promotes building quality, can better realize the industrialization, saves the labour, saves template and scaffold frame etc. advantages such as reduction of erection time, energy-conservation, environmental protection.
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 fabricated vault long-span pillarless underground structure according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a fabricated vault long-span pillarless underground structure according to a first embodiment of the present invention;
fig. 3 is a schematic view of a connection structure between a first slab cast-in-place layer and a first side wall prefabricated member according to a second embodiment of the present invention;
fig. 4 is a schematic partial structural view of a cast-in-place layer of a first floor provided in the second embodiment of the present invention;
fig. 5 is a schematic partial structural view of a first side wall prefabricated component according to a second embodiment of the present invention;
fig. 6 is a schematic view of a connection structure of two first floor preforms according to a third embodiment of the present invention;
fig. 7 is a top view of a connection structure of two first floor preforms according to a third embodiment of the present invention;
fig. 8 is a schematic partial structural view of a first floor preform according to a third embodiment of the present invention;
fig. 9 is a schematic partial structural view of a first floor preform according to a third embodiment of the present invention;
in the figure: 1. the building envelope comprises a building envelope, 2, a crown beam, 4, a concrete cushion, 5, a reinforced concrete cast-in-place layer, 6, a middle upright post, 7, a middle longitudinal beam, 8, a second side wall prefabricated part, 9, a second side wall cast-in-place layer, 10, a first floor prefabricated part, 11, a first floor cast-in-place layer, 12, a first side wall prefabricated part, 13, a first side wall cast-in-place layer, 14, an arc-shaped arch plate prefabricated part, 15, a vault floor cast-in-place layer, 16, backfill soil, 20, a first U-shaped rib, 21, a first positioning member, 22, a second U-shaped rib, 23, a second positioning member, 24, a first transverse steel bar, 25, a second transverse steel bar, 26, an upper main rib, 27, an additional transverse steel bar, 28, a connecting rib, 29, a first vertical tie rib frame, 30, a second vertical tie rib frame, 31, a water stop structure, 32, an upper longitudinal steel bar, 33, a lower longitudinal steel bar, 34, a lower main, Adding longitudinal steel bars; 36. the cast-in-place construction method comprises the following steps of a second layer plate side prefabricated part, a second layer plate middle prefabricated part, 38, a second layer plate cast-in-place connecting section, 39, a middle upright post cast-in-place connecting section, 40, a second side wall cast-in-place connecting section and 41, and a first layer plate cast-in-place connecting section.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
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 two or more unless otherwise specified.
Example one
As shown in fig. 1-2, the embodiment provides an assembled vault large-span pillarless underground structure, which includes a building enclosure 1, a vault laminate, a first laminate and a first side wall, wherein the vault laminate and the first laminate are arranged in the building enclosure 1, and the first side wall is arranged on both sides of the first laminate; the vault layer plate comprises a vault layer plate cast-in-place layer 15 and two connected arc arch plate prefabricated members 14, wherein the ends, which are deviated from each other, of the two arc arch plate prefabricated members 14 are respectively connected with two first side walls; and vault plywood cast-in-place layers 15 are poured on the first side wall, between the arc arch plate prefabricated members 14 and the first side wall, on the two arc arch plate prefabricated members 14 and between the two arc arch plate prefabricated members 14. The top of the underground structure of the embodiment adopts the vault laminate, thereby realizing the effect of column-free large space of the vault and having good visual effect of building decoration of the vault; and a superposed structure is formed by the prefabricated member and the cast-in-place layer, so that temporary facilities such as partial on-site formwork erection and scaffold erection can be omitted, the construction period is shortened, and the waterproof performance and the integral stress performance of the assembled underground structure can be effectively improved.
Further, the two arcuate arch preforms 14 are on the same arcuate face. As shown in fig. 1-2, the two arc-shaped arch plate prefabricated members 14 are assembled to form a vault shape after being hoisted to a construction site, so that the size and the weight of the prefabricated members can be reduced, and the transportation, hoisting and assembly of the prefabricated members are facilitated.
As an implementation mode, the first side wall comprises a first side wall prefabricated member 12, and a first side wall cast-in-place layer 13 is poured between the first side wall prefabricated member 12 and the enclosure structure 1 and between the first side wall prefabricated member 12 and the first floor, so that the first side wall prefabricated member 12 and the first side wall cast-in-place layer 13 form a superposed structure, the integrity and the waterproof performance of the structure are improved, the size and the weight of the prefabricated member are reduced, and the hoisting and assembling are facilitated; the arch-shaped prefabricated member 14 is connected to the top of the first side wall prefabricated member 12. The bottom of the first side wall prefabricated member 12 of this embodiment can be positioned and fixed by the cooperation of the embedded part and the embedded part on the first layer plate, the top of the first side wall prefabricated member 12 is fixed with the enclosure structure 1 by the embedded part, then the first layer plate is used as a bottom die, the enclosure structure 1 and the first side wall prefabricated member 12 are used as side dies, and concrete is poured to form the cast-in-situ first side wall layer 13. As another embodiment, the first side wall includes a first side wall prefabricated member 12, a first side wall cast-in-place connecting section is poured between the first side wall prefabricated member 12 and the first floor slab, the first side wall prefabricated member 12 and the first floor slab are connected into a whole through the first side wall cast-in-place connecting section, the connection form of the second side wall prefabricated member 8 and the second side wall cast-in-place connecting section 40 in fig. 2 is the same, and the arc-shaped arch plate prefabricated member 14 is connected with the top of the first side wall prefabricated member 12. In addition, a waterproof layer can be constructed on the position, corresponding to the first side wall, of the enclosure structure 1, so that the waterproof performance is improved, and then the construction of the first side wall is completed.
Further, as shown in fig. 1-2, the top of the first side wall prefabricated member 12 is provided with a faying surface matching with the end surface of the arc-shaped arch bar prefabricated member 14, so that the arc-shaped arch bar prefabricated member 14 and the first side wall prefabricated member 12 can be assembled together, the assembly efficiency is improved, and the construction progress is accelerated. A matched positioning structure can be arranged on the overlapping surface of the arc-shaped arch plate prefabricated part 14, so that the positioning efficiency is improved.
Further, a second laminate is arranged below the first laminate, second side walls are arranged on two sides of the second laminate, and two ends of the first laminate are arranged on the two second side walls on the two sides respectively.
As an implementation mode, the second side wall comprises a second side wall prefabricated member 8, a second side wall cast-in-place layer 9 is poured between the second side wall prefabricated member 8 and the enclosure structure 1 and between the second side wall prefabricated member 8 and the second laminate, and the second side wall prefabricated member 8 and the second side wall cast-in-place layer 9 form a laminated structure, so that the size and the weight of the prefabricated member can be reduced, and the hoisting and assembling are facilitated; the bottom of the second side wall prefabricated member 8 of the embodiment can be positioned and fixed by matching the embedded part with the embedded part on the second laminate, the top of the second side wall prefabricated member 8 is fixed with the enclosure structure 1 by the embedded part, then the second laminate is used as a bottom die, the enclosure structure 1 and the second side wall prefabricated member 8 are used as side dies, and concrete is poured to form a second side wall cast-in-place layer 9. As another embodiment, the second side wall comprises a second side wall prefabricated member 8, a second side wall cast-in-place connecting section 40 is poured between the bottom of the second side wall prefabricated member 8 and the second layer plate, the second side wall prefabricated member 8 can be fixed with the second layer plate through an embedded part at the bottom, and the second side wall prefabricated member 8 and the second layer plate are connected into a whole through the second side wall cast-in-place connecting section 40, so that the integrity and the waterproof performance of the fabricated underground structure are improved. The second side wall of this embodiment can also adopt the form of full cast-in-place, and cast concrete forms the cast-in-place side wall of second after carrying out framework of reinforcement ligature at the job site. In addition, a waterproof layer can be constructed on the position, corresponding to the second side wall, of the enclosure structure 1, so that the waterproof performance is improved, and then the construction of the second side wall is completed.
Furthermore, as shown in fig. 3-4, a center pillar 6 is disposed on the second layer board, a center longitudinal beam 7 is disposed on the center pillar 6, and the middle of the first layer board is disposed on the center longitudinal beam 7 and supported by the center pillar 6 and the center longitudinal beam 7. The first center pillar 14, the first center longitudinal beam 15, the second center pillar 6, and the second center longitudinal beam 7 of the present embodiment may be in a cast-in-place form, or in a prefabricated form, when the prefabricated form is adopted, it may be used to complete assembling and fixing of the prefabricated member when waiting for the age of cast-in-place concrete, the prefabricated member and the prefabricated member form a cast-in-place connecting section by pouring concrete to connect the two prefabricated members into a whole, as shown in fig. 2, the prefabricated member of the second center pillar 6 is hoisted, the bottom of the second center pillar 6 is fixed to the second slab, then the concrete is poured between the second center pillar 6 and the second slab to form a cast-in-place connecting section 39 of the second center pillar, and the second center pillar 6 and the second slab are connected into a whole.
In one embodiment, the first floor comprises a first floor cast-in-place layer 11 and two first floor prefabricated members 10, two ends of each first floor prefabricated member 10 are respectively arranged on the middle longitudinal beam 7 and one of the second side wall prefabricated members 8, and the first floor cast-in-place layer 11 is cast on the top of the second side wall, the top of the middle longitudinal beam 7 and the first floor prefabricated members 10. As shown in fig. 1-2, a first slab cast-in-place layer 11 is cast on the top of the second side wall prefabricated member 8, the top of the second side wall cast-in-place layer 9, the top of the middle longitudinal beam 7 and the first slab prefabricated member 10, and the second side wall prefabricated member 8, the second side wall cast-in-place layer 9, the middle longitudinal beam 7 and the first slab prefabricated member 10 are integrally cast, so that the integrity of the fabricated underground structure and the waterproof performance of the underground structure are enhanced. As another embodiment, as shown in fig. 2, the first floor of this embodiment includes two first floor prefabricated members 10, one end of each first floor prefabricated member 10 is disposed on the second side wall, the other end of each first floor prefabricated member is disposed on the center longitudinal beam 7, a first floor cast-in-place connecting section 41 is cast between the two first floor prefabricated members 10, and as shown in fig. 2, the first floor cast-in-place connecting section 41 is connected with the enclosure structure 1 in a cast-in-place manner; as a third embodiment, the first layer board of this embodiment may also be in a full cast-in-place form, and the first cast-in-place layer board is formed by building a bottom formwork between the second side wall and the middle longitudinal beam 7, assembling the reinforcing mesh, and then pouring concrete.
Furthermore, a waterproof layer is constructed on the vault laminate cast-in-place layer 15, so that the waterproof performance of the fabricated underground structure is further enhanced.
Further, as shown in fig. 1-2, a concrete cushion 4 is arranged below the second layer board, and a waterproof layer is constructed between the second layer board and the concrete cushion 4, so that the waterproof performance of the second layer board is improved.
As another embodiment, the second layer plate comprises two second layer plate-side prefabricated members 36 and a second layer plate-in-prefabricated member 37 arranged between the two second layer plate-side prefabricated members 36, and a second layer plate cast-in-place connecting section 38 is cast between the second layer plate-in-place prefabricated member 37 and the second layer plate-side prefabricated member 36. The second layer plate of the embodiment is spliced and connected through the multiple sections of prefabricated parts, so that the size and the weight of a single prefabricated part are reduced, and the prefabricated parts are convenient to transport, hoist and splice; and adjacent prefabricated members are connected in a cast-in-place mode through concrete pouring, and the structural integrity is improved. Further, as shown in fig. 2, a first groove is formed in one side of the second floor-side prefabricated member 36 away from the enclosure structure 1, a second groove is formed in the side of the second floor-side prefabricated member 37 opposite to the first groove, and the second floor-side cast-in-place connecting section 38 is located between the first groove and the second groove; the first groove and the second groove of the embodiment are oppositely arranged, so that the middle of the cast-in-place connecting section 38 of the second laminate is wide, the upper end and the lower end of the cast-in-place connecting section are narrow, and the integrity and the waterproof performance of the assembled underground structure are further improved; in addition, the reinforcing bars reserved on the second deck side prefabricated member 36 extend out of the first groove, the reinforcing bars reserved on the prefabricated member 37 in the second deck extend out of the second groove, the reinforcing bars of the two prefabricated members are partially overlapped in the second deck cast-in-place connecting section 38, so that the connecting strength of the second deck cast-in-place connecting section 38 is improved, the connection between the other two prefabricated members in the embodiment can also adopt the arrangement form of the grooves and the reinforcing bars, for example, the connection between the first deck prefabricated member 10 and the first deck prefabricated member 10 in the form of pouring the first deck cast-in-place connecting section 10 between the first deck prefabricated member 10 and the first deck prefabricated member 10 is adopted. In addition, the second plywood of this embodiment can also adopt superimposed structure, and the second plywood includes two second plywood prefabs, pours the cast-in-place layer of second plywood between two second plywood prefabs and on two second plywood prefabs, forms superimposed structure, and the structure with the first plywood in FIG. 1 is the same, improves assembled underground structure's waterproof performance and structural integrity.
The utility model provides a side wall prefab of assembled vault stride no post underground structure greatly all adopts cast-in-place "wet node" with the junction of plywood prefab and the junction of well longeron, and assembled underground structure's waterproof nature, wholeness are good.
The fabricated vault long-span pillarless underground structure provided by the embodiment can also be used for underground structures of other N layers, the topmost layer and the bottommost layer of the fabricated vault long-span pillarless underground structure can respectively adopt the structural forms of the underground layer and the underground second layer of the embodiment, and the side walls and the laminated plates of other layers can also adopt the structural forms of other laminated plates and side walls of the embodiment, which is not detailed herein; the underground structure built by adopting a reasonable component partitioning scheme and a pre-construction supporting plate replacing scheme is not limited by geological conditions, inner supports and the like, and the problems of difficult hoisting and assembling of the construction prefabricated member of the support system in the open cut foundation pit and poor water resistance, poor integrity and the like of an assembled structure are solved; the optimized size and weight of the prefabricated member are adapted to the on-site hoisting and assembling requirements of the foundation pit with the inner support, and the industrialized popularization and application can be better realized. The underground structure that this embodiment provided forms congruent structure through pouring cast-in-place layer in the prefab outside, improves assembled underground structure's waterproof performance and structural integrity, is applicable to major structure engineering such as urban rail transit underground station, basement, utility tunnel.
Example two
As shown in fig. 3 to 5, the present embodiment provides a connection structure of a prefabricated member and a cast-in-place concrete layer, which can be used for connecting a prefabricated member 12 of a first side wall with a cast-in-place first layer plate 11 or a cast-in-place first layer plate when the first side wall is of a laminated structure, and the first layer plate is of a full-cast-in-place or laminated structure, and can also be used for connecting a prefabricated member 8 of a second side wall with a cast-in-place second layer plate or a cast-in-place reinforced concrete layer 5 when the second side wall is of a laminated structure, and the second layer plate is of a full-cast-; the connection structure of the first side wall prefabricated member 12 and the first cast-in-place slab, the connection structure of the second side wall prefabricated member 8 and the second cast-in-place slab or the reinforced concrete cast-in-place slab 5 are the same as those described above, and detailed description thereof is omitted.
The connecting structure of the first side wall prefabricated member 12 and the first floor cast-in-place layer 11 comprises a first side wall cast-in-place layer 13 for connecting the first side wall prefabricated member 12 and the first floor cast-in-place layer 11, a first U-shaped rib 20 reserved on the first floor cast-in-place layer 11 and a second U-shaped rib 22 reserved on the first side wall prefabricated member 12, wherein two side parts of the first U-shaped rib 20 extend into the first floor cast-in-place layer 11 for fixation, the bottom of the first U-shaped rib 20 extends out of the first floor cast-in-place layer 11, and the extension length of the first U-shaped rib is determined according to the calculation requirement of the relative installation position between the first side wall prefabricated member 12 and the first floor cast-in-place layer 11 and the lap joint length; one side part of the second U-shaped rib 22 extends into the first side wall prefabricated part 12, the other side of the second U-shaped rib 22 is located in the first side wall cast-in-place layer 13, the first side wall prefabricated part 12 is fixed with the first side wall cast-in-place layer 13 through two sides of the second U-shaped rib 22, meanwhile, the lower ends of the first U-shaped rib 20 and the second U-shaped rib 22 are overlapped and lapped, the lapping position of the first U-shaped rib 20 and the second U-shaped rib 22 is located in the first side wall cast-in-place layer 13, the first U-shaped rib 20 and the second U-shaped rib 22 are connected in a lapping mode, the problem that the first side wall prefabricated part 12 is difficult to be connected with the first side wall cast-in-place layer 11 is solved, the first side wall prefabricated part 12 and the first side wall cast-in-place layer 13 are connected through the first U-shaped rib 20 and the second U-shaped rib 22, and the stress intensity of connecting nodes of the side walls.
Further, as shown in fig. 4 and 5, a first positioning member 21 is arranged at the bottom of the first side wall prefabricated member 12, a second positioning member 23 used for being matched and positioned with the first positioning member 21 is arranged on the first slab cast-in-place layer 11, and the first side wall prefabricated member 12 and the first slab cast-in-place layer 11 are connected and positioned through the connection of the first positioning member 21 and the second positioning member 23, so that the problem that the first side wall prefabricated member 12 and the first slab cast-in-place layer 11 are difficult to position is effectively solved. As an implementation manner, a leveling device matched with the bottom of the first positioning member 21 may be disposed on the second positioning member 23, so as to improve the positioning accuracy. The positioning and connecting method of the first positioning member 21 and the second positioning member 23 in this embodiment may also be used for positioning and connecting other side wall prefabricated members and layer plates, positioning and connecting middle pillars and layer plates, and positioning and connecting side wall prefabricated members and an enclosure structure.
Further, the first positioning member 21 is arranged in a staggered manner with the overlapping portions of the first U-shaped rib 20 and the second U-shaped rib 22, the positions of the first positioning member 21, the first U-shaped rib 20 and the second U-shaped rib 22 are not affected, the positioning effect of the first positioning member 21 on the first side wall prefabricated member 12 is guaranteed, and the effect of the first U-shaped rib 20 and the effect of the second U-shaped rib 22 on the stress strength of the reinforced connection node are not affected.
Further, one side of first U type muscle 20 and the equal interval of the 22 lap joints of second U type muscle is equipped with many first transverse reinforcement 24, first transverse reinforcement 24 is perpendicular to first U type muscle 20 and the 22 arrangement of second U type muscle, many first transverse reinforcement 24 on the first U type muscle 20 and many first transverse reinforcement 24 mutual dispositions on the second U type muscle 22, through the setting of first transverse reinforcement 24, not only can be used to fixed first U type muscle 20 and the 22U type muscle of second, but also can further strengthen the connected node stress intensity of first side wall prefab 12 and the cast-in-place layer 11 of first floor. In addition, a plurality of second transverse reinforcing steel bars 25 are arranged on the second U-shaped reinforcing steel bars 22 respectively on the two sides of the interior of the first side wall prefabricated member 12 and the interior of the first side wall cast-in-place layer 13 at intervals, the second transverse reinforcing steel bars 25 are perpendicular to the second U-shaped reinforcing steel bars 22, and the stress strength of the connecting node of the first side wall prefabricated member 12 and the first side wall cast-in-place layer 13 is further enhanced through the second transverse reinforcing steel bars 25.
Further, first U type muscle 20 and second U type muscle 22 all have many, all arrange along first transverse reinforcement 24's extending direction, and first U type muscle 20 and second U type muscle 22 distribute in turn, and the overlap joint is buckled mutually of many first U type muscle 20 and second U type muscle 22, has further strengthened first side wall prefabricated component 12 and the cast-in-place layer 11 joint strength of first floor board.
The connecting structure provided by the embodiment solves the problem of difficult positioning implementation of the prefabricated member in the existing fabricated structural member and strengthens the stress strength of the connecting node of the prefabricated member and the concrete cast-in-place layer through buckling connection between the first U-shaped rib 20 and the second U-shaped rib 22 and connection positioning between the first positioning member 21 and the second positioning member 23; meanwhile, the prefabricated member and the concrete cast-in-place layer are cast into an integral structure in a cast-in-place mode, and the problem that water is easy to leak at the joint of the existing fabricated structural member is solved.
The connection structure of the prefabricated member and the cast-in-place concrete layer in the embodiment may also be used for connecting the prefabricated member and the prefabricated member, for example, when the first side wall adopts an overlapped structure, and the first slab adopts a form of a first slab prefabricated member and a first slab cast-in-place connection section, when the second side wall adopts an overlapped structure, and the second slab adopts a form of a second slab cast-in-place prefabricated member and a second slab cast-in-place connection section, the connection of the second side wall prefabricated member and the second slab prefabricated member is only distinguished by replacing the cast-in-place concrete layer with the first slab prefabricated member, and the remaining connection method is not changed, and will not be described in detail herein.
EXAMPLE III
The embodiment provides a connecting structure of a prefabricated member and a prefabricated member, which can be used for connecting a first layer plate prefabricated member 10 and a first layer plate prefabricated member 10 when a first layer plate adopts an overlapping structure in the embodiment one, and connecting a second layer plate prefabricated member and a second layer plate prefabricated member when a second layer plate adopts an overlapping structure; the connection structure of the two first laminate preforms 10 when the first laminate is a laminated structure will now be described as an example, and the connection structure of the two second laminate preforms and the connection structure of the two dome laminate preforms 16 are the same as those described above, and will not be described in detail here.
As shown in fig. 6-9, the present embodiment provides a connection structure of prefabricated members, a cast-in-place first floor layer 11 is poured between two first floor prefabricated members 10 and above the two first floor prefabricated members 10, a reinforcing steel framework is reserved on each of the two first floor prefabricated members 10, the reinforcing steel framework includes an upper main rib 26, a lower main rib 34, and a connecting rib 28 connecting ends of the upper main rib 26 and the lower main rib 34, the upper main rib 26 and the lower main rib 34 are arranged in parallel, the lower main rib 34 partially extends into the first floor prefabricated member 10 along an extending direction of the first floor prefabricated member 10, the lower main rib 34 extends out of the first floor prefabricated member 10, and the upper main reinforcement 26 and the connecting reinforcement 28 are both arranged inside the first floor cast-in-place layer 11, and the steel bar frames of the two first floor prefabricated members 10 are partially overlapped and arranged inside the first floor cast-in-place layer 11 along the extending direction of the main reinforcement. This embodiment has realized the rigid connection between two first floor prefab 10 through the structure design and the steel framework coincide overlap joint design to first floor prefab 10 to and the common atress of superimposed structure that first floor prefab 10 and the cast-in-place layer 11 of first floor combine, has guaranteed this connection structure's bearing capacity and durability, has solved the problem of the easy percolating water of joint seam of current assembled first floor prefab 9.
Wherein, the bottom junction of two first floor prefab 10 is equipped with stagnant water structure 31, and as an implementation, this stagnant water structure 31 can be the sealing rod.
Further, as shown in fig. 6 to 9, a plurality of upper longitudinal steel bars 32 are arranged on the upper main bar 26 at intervals along the axial direction thereof, the upper longitudinal steel bars 32 are arranged perpendicular to the upper main bar 26, and the stress strength of the first slab cast-in-place layer 11 is enhanced by arranging the upper longitudinal steel bars 32 and the upper main bar 26 in a criss-cross manner inside the first slab cast-in-place layer 11. Further, as shown in fig. 8 and 9, additional transverse steel bars 27 are arranged on the bottom inner layers of the two first-layer plate prefabricated members 10, the additional transverse steel bars 27 are arranged in parallel with the lower main steel bars 34 in the first-layer plate prefabricated members 10, a plurality of lower longitudinal steel bars 33 are arranged on the additional transverse steel bars 27 at intervals along the axial direction of the additional transverse steel bars, and the additional transverse steel bars 27 and the lower longitudinal steel bars 33 are arranged inside the first-layer plate prefabricated members 10 in a criss-cross manner, so that the stress strength of the two first-layer plate prefabricated members 10 is enhanced; meanwhile, a first wavy vertical tie bar frame 29 is arranged between the additional transverse steel bars 27 and the upper main steel bars 26, wave crests and wave troughs of the first vertical tie bar frame 29 are respectively connected to the upper longitudinal steel bars 32 and the lower longitudinal steel bars 33, and the first floor prefabricated member 10 and the first floor cast-in-place layer 11 are connected through the structure and arrangement mode design of the first vertical tie bar frame 29, so that the connection strength of the first floor prefabricated member 10 and the first floor cast-in-place layer 11 is enhanced, and the bearing capacity of the first floor prefabricated member 10 and the first floor cast-in-place layer 11 after being connected into a whole is improved.
Specifically, the end surfaces of the connecting sides of the two vault layer plate preforms 10 are oblique end surfaces, wherein the connecting rib 28 on one side of one first layer plate preform 10 is obliquely arranged, and the inclination of the connecting rib 28 is matched with the inclination of the oblique end surface of the other first layer plate preform 10, so that the steel bar frame of the first layer plate preform 10 can extend above the oblique end surface of the other first layer plate preform 10 when being overlapped and lapped with the steel bar frame of the first layer plate preform 10, and the connecting rib 28 of the other first layer plate preform 10 does not extend out of the connecting rib 28; and be equipped with the second between the splice bar 28 of first floor prefab 10 and upper portion owner muscle 26 and found the tie bar frame 30, the second is found the tie bar frame 30 and is set up for following the first vertical tie bar frame 29 extending direction that draws, has strengthened the intensity of first floor prefab 10 with first floor prefab 10 coincide overlap joint department, found the tie bar frame and can also play the effect of fixed prefabricated component outside steel reinforcement framework simultaneously.
Furthermore, a plurality of additional longitudinal steel bars 35 are arranged on the lower main steel bar 34, the additional longitudinal steel bars 35 are perpendicular to the lower main steel bar 34, the additional longitudinal steel bars 35 are distributed in the first floor prefabricated member 10 and the first floor cast-in-place layer 11 at intervals, and the stress strength of the joint of the first floor prefabricated member 10 and the first floor cast-in-place layer 11 is enhanced through the additional longitudinal steel bars 35. In addition, as shown in fig. 7, the steel frames of the two first floor prefabricated members 10 may be provided in plurality, and the steel frames of the first floor prefabricated members 10 are alternately arranged, so that the connection strength between the first floor prefabricated members 10 and the cast-in-place layer 11 of the first floor is further enhanced, and the overall bearing capacity of the connection structure of the fabricated first floor prefabricated members 10 is improved.
The connecting structure of the prefabricated members and the prefabricated members in the embodiment can also be used for connecting the vertical prefabricated members and the vertical prefabricated members in the length direction of the underground structure to improve the structural integrity and the waterproof performance, for example, the connecting structure of the first side wall prefabricated members 12 and the first side wall prefabricated members 12, the connecting structure of the second side wall prefabricated members 8 and the like can be used, the connecting structure of the vertical prefabricated members is the same as that of the two transverse first floor prefabricated members 10, the two prefabricated members can be used as templates for connecting the two side wall prefabricated members, and the building envelope or other systems which can be used as template conditions can be used for carrying out superposed layer concrete pouring on the other side of the prefabricated members; and will not be described in detail herein.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
1. The utility model provides an assembled vault strides no post underground structure greatly which characterized in that: the building enclosure comprises an enclosure structure, a vault layer plate, a first layer plate and first side walls, wherein the vault layer plate and the first layer plate are arranged in the enclosure structure, and the first side walls are arranged on two sides of the first layer plate; the vault layer plate comprises a vault layer plate cast-in-place layer and two connected arc arch plate prefabricated members, wherein the ends of the two arc arch plate prefabricated members, which are far away from each other, are respectively connected with two first side walls; and vault plywood cast-in-place layers are poured on the first side wall, between the arc arch slab prefabricated members and the first side wall, on the two arc arch slab prefabricated members and between the two arc arch slab prefabricated members.
2. The fabricated vault large-span pillarless underground structure of claim 1, wherein: the two arc-shaped arch plate prefabricated parts are arranged on the same arc-shaped surface.
3. The fabricated vault large-span pillarless underground structure of claim 1, wherein: the first side wall comprises a first side wall prefabricated member, and a first side wall cast-in-place layer is poured between the first side wall prefabricated member and the enclosure structure and between the first side wall prefabricated member and the first floor plate.
4. The fabricated vault large-span pillarless underground structure of claim 1, wherein: the first side wall comprises a first side wall prefabricated part, and a first side wall cast-in-place connecting section is poured between the first side wall prefabricated part and the first layer plate.
5. The fabricated vault large-span pillarless underground structure of claim 3 or 4, wherein: the top of first side wall prefab be equipped with the faying surface of arc arch bar prefab's terminal surface assorted.
6. The fabricated vault large-span pillarless underground structure of claim 1, wherein: the lower part of the first laminate is provided with a second laminate, the two sides of the second laminate are provided with second side walls, and the two ends of the first laminate are respectively arranged on the two second side walls on the two sides.
7. The fabricated vault large-span pillarless underground structure of claim 6, wherein: the second side wall comprises a second side wall prefabricated part, and a second side wall cast-in-place layer is poured between the second side wall prefabricated part and the enclosure structure and between the second side wall prefabricated part and the second laminate.
8. The fabricated vault large-span pillarless underground structure of claim 6, wherein: the second side wall comprises a second side wall prefabricated part, and a second side wall cast-in-place connecting section is poured between the bottom of the second side wall prefabricated part and the second laminate.
9. The fabricated vault large-span pillarless underground structure of claim 6, wherein: the second laminate is provided with a center pillar, the center pillar is provided with a center longitudinal beam, and the middle of the first laminate is arranged on the center longitudinal beam.
10. The fabricated vault large-span pillarless underground structure of claim 9, wherein: the first floor comprises a first floor cast-in-place layer and two first floor prefabricated parts, one end of each first floor prefabricated part is arranged on the middle longitudinal beam, the other end of each first floor prefabricated part is arranged on the second side wall, and the first floor cast-in-place layer is poured on the top of the second side wall, the top of the middle longitudinal beam and the first floor prefabricated parts.
11. The fabricated vault large-span pillarless underground structure of claim 9, wherein: the first floor comprises two first floor prefabricated parts, one end of each first floor prefabricated part is arranged on the second side wall, the other end of each first floor prefabricated part is arranged on the middle longitudinal beam, and a first floor cast-in-place connecting section is poured between the two first floor prefabricated parts.
12. The fabricated vault large-span pillarless underground structure of claim 6, wherein: and a concrete cushion is arranged below the second laminate, and a waterproof layer is constructed between the second laminate and the concrete cushion.
13. The fabricated vault large-span pillarless underground structure of claim 6, wherein: the second layer plate comprises two second layer plate-side prefabricated members and a second layer plate-middle prefabricated member arranged between the two second layer plate-side prefabricated members, and a second layer plate cast-in-place connecting section is poured between the second layer plate-middle prefabricated member and the second layer plate-side prefabricated member.
14. The fabricated vault large-span pillarless underground structure of claim 13, wherein: one side of the second layer plate side prefabricated member, which is far away from the enclosure structure, is provided with a first groove, one side of the second layer plate side prefabricated member, which is opposite to the first groove, is provided with a second groove, and the cast-in-place connecting section of the second layer plate is positioned between the first groove and the second groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920559641.9U CN210066816U (en) | 2019-04-23 | 2019-04-23 | Assembled vault is striden no post underground structure greatly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920559641.9U CN210066816U (en) | 2019-04-23 | 2019-04-23 | Assembled vault is striden no post underground structure greatly |
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| CN210066816U true CN210066816U (en) | 2020-02-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080290A (en) * | 2019-04-23 | 2019-08-02 | 中铁第四勘察设计院集团有限公司 | A kind of assembled vault is greatly across no column underground structure |
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- 2019-04-23 CN CN201920559641.9U patent/CN210066816U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080290A (en) * | 2019-04-23 | 2019-08-02 | 中铁第四勘察设计院集团有限公司 | A kind of assembled vault is greatly across no column underground structure |
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