CN113026806A - Prefabricated angle plate and assembled underground station - Google Patents
Prefabricated angle plate and assembled underground station Download PDFInfo
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- CN113026806A CN113026806A CN202110307465.1A CN202110307465A CN113026806A CN 113026806 A CN113026806 A CN 113026806A CN 202110307465 A CN202110307465 A CN 202110307465A CN 113026806 A CN113026806 A CN 113026806A
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- 229910000831 Steel Inorganic materials 0.000 claims description 71
- 239000010959 steel Substances 0.000 claims description 71
- 239000011440 grout Substances 0.000 claims description 18
- 238000004873 anchoring Methods 0.000 claims description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 32
- 230000002093 peripheral effect Effects 0.000 abstract description 31
- 239000004567 concrete Substances 0.000 description 29
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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Abstract
The invention relates to a prefabricated arch corner plate which comprises an arch top plate and a side wall plate connected with the arch top plate, wherein the arch top plate is a curved plate and is integrally prefabricated and formed with the side wall plate, the transverse free end of the arch top plate is provided with an arch top connecting structure used for being connected with an external arch top section, and the bottom end of the side wall plate is provided with a side wall connecting structure used for being connected with an external side wall section. In addition, the prefabricated arched plate is adopted in the assembled underground station. According to the invention, the side wall plate and the vault plate are integrally prefabricated and molded, and then the side wall plate is connected with the adjacent peripheral side wall segment and the vault plate is connected with the peripheral vault segment, so that the assembly construction of an underground station, especially the assembly construction of the vault of the station, can be realized; and the strength and the construction quality of the connecting joint of the station vault and the station side wall can be effectively improved, the load received by the station vault can be reliably transferred to the station side wall, and the engineering quality and the operation safety of the assembled underground station are ensured.
Description
Technical Field
The invention belongs to the technical field of building engineering, particularly relates to the technical field of underground station construction, and particularly relates to a prefabricated angle plate and an assembled underground station adopting the prefabricated angle plate.
Background
The underground station is constructed by cast-in-place reinforced concrete mostly, the construction operation environment is poor, the process is complex, the construction period is long, the influence of various weather and climate is large, the construction quality is influenced by various factors and is difficult to guarantee, and meanwhile, a lot of waste building rubbish is generated in the construction process, so that the resources are wasted and the environment is polluted.
Along with the gradual application of the assembly construction, the assembly construction of the underground station is also popularized, the construction efficiency and the construction quality of the underground station can be obviously improved, the construction operation environment of the underground station is improved, and the like. However, the existing underground station cannot realize full-prefabricated assembly construction, for example, the vault of the station and the like generally adopt cast-in-place construction; if the station vault also adopts the prefab, the connected node intensity and the construction quality between its and the station side wall all are difficult to guarantee, and the load that the station vault bore transmits the connected node department that structural strength is weak relatively easily to influence the operation safety of underground station.
Disclosure of Invention
The invention relates to a prefabricated angle plate and an assembled underground station using the same, which can at least solve part of the defects in the prior art.
The invention relates to a prefabricated arch corner plate which comprises an arch top plate and a side wall plate connected with the arch top plate, wherein the arch top plate is a curved plate and is integrally prefabricated and formed with the side wall plate, the transverse free end of the arch top plate is provided with an arch top connecting structure used for being connected with an external arch top section, and the bottom end of the side wall plate is provided with a side wall connecting structure used for being connected with an external side wall section.
As one embodiment, the vault connecting structure comprises a plurality of transverse bolt sleeves pre-buried at transverse free ends of vault plates; or the vault connecting structure comprises a transverse connecting steel plate fixed at the transverse free end of the vault plate, and a plurality of transverse bolt through holes are formed in the transverse free end of the transverse connecting steel plate.
In one embodiment, when the dome connection structure includes a plurality of transverse bolt sleeves, each of the transverse bolt sleeves is anchored by an embedded anchor bar embedded in the dome plate block.
As one embodiment, when the vault connecting structure includes a transverse connecting steel plate, the transverse connecting steel plate includes a web, and an installation end wing plate and a connection end wing plate which are respectively connected to two transverse ends of the web, wherein the installation end wing plate is embedded in a transverse free end of the vault plate and anchored by an anchoring steel bar embedded in the vault plate, and the bolt through hole is opened on the connection end wing plate.
As one embodiment, transverse steel bars are arranged in the vault plate, the transverse steel bars extend out from the transverse free ends of the vault plate, and the transverse steel bars are distributed on the upper side and/or the lower side of the vault connecting structure.
As one embodiment, the side wall connecting structure includes a plurality of vertical bolt sleeves pre-embedded at the bottom ends of the side wall plates; or, the side wall connecting structure comprises a vertical connecting steel plate fixed at the bottom end of the side wall plate, and a plurality of vertical bolt through holes are formed in the vertical free end of the vertical connecting steel plate.
As one embodiment, a grouting hole is formed in the side wall plate, and the grouting hole penetrates through the top end and the bottom end of the side wall plate respectively; or, be equipped with grout hole and with the grout passageway of grout hole intercommunication in the side wall plate, the grout hole link up the bottom of side wall plate, the entry and the export of grout passageway are all seted up on the station side wall face of side wall plate.
The invention also relates to an assembled underground station, which comprises a station bottom plate, a station middle plate and two groups of side wall structures, wherein the side wall structures comprise a plurality of side wall sections which are sequentially spliced along the longitudinal direction of the station, a plurality of vault sections and a plurality of prefabricated vault plates,
the prefabricated arch angle plates on each side are sequentially spliced along the longitudinal direction of the station; and the vault plates and the vault sections are correspondingly connected to form a station vault, and the side wall plates on each side and the side wall sections on the corresponding side are connected to form a station side wall.
The invention has at least the following beneficial effects:
according to the invention, the side wall plate and the vault plate are integrally prefabricated and molded, and then the side wall plate is connected with the adjacent peripheral side wall segment and the vault plate is connected with the peripheral vault segment, so that the assembly construction of an underground station, especially the assembly construction of the vault of the station, can be realized; and the strength and the construction quality of the connecting joint of the station vault and the station side wall can be effectively improved, the load received by the station vault can be reliably transferred to the station side wall, and the engineering quality and the operation safety of the assembled underground station are ensured.
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 view of a fabricated underground station according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a prefabricated corner cove according to an embodiment of the present invention;
fig. 3 is a schematic view of a connection structure of a dome plate and a dome segment provided by an embodiment of the invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 6 is a cross-sectional view taken at C-C of FIG. 3;
FIG. 7 is a cross-sectional view taken along line D-D of FIG. 3;
fig. 8 is a schematic view of a connection structure between a sidewall plate and a middle sidewall segment according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1 and 2, an embodiment of the present invention provides a prefabricated arch plate 1, including a vault plate 12 and a side wall plate 11 connected to the vault plate 12, where the vault plate 12 is a curved plate and is prefabricated and formed integrally with the side wall plate 11, a vault connecting structure for connecting to an external vault segment 2 is disposed at a lateral free end of the vault plate 12, and a side wall connecting structure for connecting to an external side wall segment is disposed at a bottom end of the side wall plate 11.
Generally, the vault plate 12 and the side wall plate 11 are both of reinforced concrete structures; the prefabrication process of the prefabricated corner cove 1 is conventional in the art and will not be described in detail herein.
In one embodiment, the curvature of the top surface and the curvature of the bottom surface of the dome plate 12 are different, wherein preferably, the top surface of the dome plate 12 is suitable for being in smooth butt joint with the top surface of the side wall plate 11, and the bottom surface of the dome plate 12 is suitable for being in smooth butt joint with the station side wall surface of the side wall plate 11.
The prefabricated arch corner plate 1 provided by the embodiment can realize the assembly construction of an underground station, particularly the assembly construction of a station arch top, by integrally prefabricating and molding the side wall plate 11 and the arch top plate 12, connecting the side wall plate 11 with the adjacent peripheral side wall segment and connecting the arch top plate 12 with the peripheral arch top segment 2; and the strength and the construction quality of the connecting joint of the station vault and the station side wall can be effectively improved, the load received by the station vault can be reliably transferred to the station side wall, and the engineering quality and the operation safety of the assembled underground station are ensured.
The above-mentioned vault slabs 12, which are part of the station vault, need to be connected to the external vault section 2. The external vault segment 2 can be a cast-in-place structure, and the vault connecting structure can be a transverse steel bar 74 extending out of the transverse free end of a vault plate, and the like; but preferably, the peripheral vault segment 2 is also of a prefabricated structure so as to improve the construction efficiency of the underground station.
For the connection between the dome plate 12 and the prefabricated peripheral dome section 2, a tongue-and-groove type connection structure or the like may be used. As a preferable solution of this embodiment, as shown in fig. 3 to 5, the dome connecting structure includes a plurality of transverse bolt sleeves 71 pre-buried in the transverse free ends of the dome plate; or, the vault connecting structure comprises a transverse connecting steel plate 72 fixed at the transverse free end of the vault plate, and a plurality of transverse bolt through holes are formed in the transverse free end of the transverse connecting steel plate 72. Specifically, when the transverse bolt sleeve 71 is embedded in the transverse free end of the vault plate, the transverse connecting steel plate 72 is installed on the external vault section 2, the transverse free end of the transverse connecting steel plate 72 abuts against the transverse free end of the vault plate and enables transverse bolt through holes of the transverse connecting steel plate to be opposite to the transverse bolt sleeve 71 one by one, and then the transverse connecting steel plate 72 is connected and fixed with the vault plate 12 through bolts, so that the vault plate 12 is connected with the external vault section 2; similarly, when the transverse free end of the vault plate is provided with the transverse connecting steel plate 72, the transverse bolt sleeves 71 are embedded in the peripheral vault sections 2, the transverse free end of the transverse connecting steel plate 72 abuts against the peripheral vault sections 2, transverse bolt through holes of the transverse connecting steel plate are opposite to the transverse bolt sleeves 71 one by one, and then the transverse connecting steel plate 72 is fixedly connected with the peripheral vault sections 2 through bolts, so that the vault plate 12 is connected with the peripheral vault sections 2.
It should be noted that the transverse direction of the crown slabs 12 referred to in the present embodiment differs from the transverse direction of the station due to the shape of the latter, which is obviously adaptive to the tendency of the free ends of the crown slabs 12 to extend (so as to be smoothly connected to the crown segments 2), as can be seen in figures 4 and 5, and will not be described in additional detail below.
Further preferably, as shown in fig. 3 and 5, when the vault connecting structure includes a plurality of transverse bolt sleeves 71, each transverse bolt sleeve 71 is anchored by an embedded anchor bar 73 embedded in the vault plate 12, so as to ensure the embedded structural strength and the stress performance of the transverse bolt sleeve 71 in the vault plate 12, and thus ensure the connecting structural strength and the working reliability between the transverse bolt sleeve 71 and the transverse connecting steel plate 72 and the bolt. Likewise, the above-described anchoring structure can be adopted when the transverse bolt sleeves 71 are pre-embedded on the peripheral dome segment 2.
Further preferably, when the vault connecting structure includes the transverse connecting steel plate 72, the transverse connecting steel plate 72 includes a web, and an installation end wing plate and a connection end wing plate which are respectively connected to two transverse ends of the web, wherein the installation end wing plate is buried in a transverse free end of the vault plate and anchored by an anchoring steel bar buried in the vault plate 12, and the bolt through hole is opened on the connection end wing plate. The transverse connecting steel plate 72 is embedded in the vault plate 12 when the side wall vault gusset plate is prefabricated, and the installation end wing plate is embedded in the vault plate 12 to improve the binding force and the integral stress performance between the installation end wing plate and the vault plate 12; the connecting end flap is intended to abut against the peripheral dome section 2. Wherein, a stiffening rib can be arranged on the web plate, which can improve the structural strength and rigidity of the transverse connecting steel plate 72, thereby improving the stress performance of the vault of the station. Likewise, the above-described mounting structure may be employed when the cross-link steel plate 72 is mounted on the peripheral dome segment 2.
By adopting the assembling structure of the transverse bolt sleeve 71, the transverse connecting steel plate 72 and the bolt, under the condition of meeting the structural strength and the stress performance of the station vault, the assembling construction between the side wall vault gusset plate and the peripheral vault section 2 is facilitated, and the construction efficiency can be improved by screwing the bolt into the transverse bolt sleeve 71 by adopting operation tools such as a manipulator and the like; through the contraposition of the transverse bolt through hole on the transverse connecting steel plate 72 and the transverse bolt sleeve 71, the contraposition precision between the arch crown plate 12 and the peripheral arch crown section 2 can be ensured, and the construction quality is improved.
When the vault plate 12 is connected with the external vault section 2, after the assembling structure of the transverse bolt sleeve 71, the transverse connecting steel plate 72 and the bolt is completed, concrete is cast in situ at the connecting node of the vault plate 12 and the external vault section 2, on one hand, the upper plate surface of the station vault is a complete and continuous plane to realize structural integrity, and on the other hand, the connecting node is a steel plate-concrete node, so that the structural reliability and the stress performance of the connecting node can be effectively improved. Preferably, transverse steel bars 74 are arranged in the vault plate 12, the transverse steel bars 74 extend out from the transverse free ends of the vault plate, and the transverse steel bars 74 are distributed on the upper side and/or the lower side of the vault connecting structure; when the concrete is cast in situ at the connecting joint, the concrete not only coats the transverse connecting steel plate 72, but also concretes the overhanging transverse reinforcing steel bar 74, so that the binding force and the cooperative stress between the vault plate 12 and the cast-in-situ concrete can be improved; as shown in fig. 4 and 5, it is preferable that transverse reinforcing bars 74 are protruded at upper and lower sides of the dome coupling structure, respectively.
Further, as shown in fig. 4 and 5, the peripheral arch segment 2 is also provided with a transverse steel bar 74, which can also improve the bonding force and the cooperative stress between the peripheral arch segment 2 and the cast-in-place concrete. The transverse steel bars 74 of the vault plate 12 are defined as plate transverse steel bars 74, and the transverse steel bars 74 of the peripheral vault sections 2 are defined as section transverse steel bars 74; wherein, preferably, at vault connection structure's upside, the horizontal reinforcing bar 74 of plate welds with the horizontal reinforcing bar 74 of festival section, and convenient operation here consequently can guarantee the efficiency and the quality of steel bar welding operation, simultaneously, can improve near the steel reinforcement skeleton intensity and the rigidity of station vault upper surface to improve the atress performance of station vault. Further, as shown in fig. 4 and 5, the transverse free end of the vault plate adopts a step structure, the step structure is formed at the top of the vault plate 12 and is in a form of being narrow at the top and wide at the bottom, the plate transverse steel bar 74 at the top of the vault plate 12 extends out from the vertical connecting surface of the step structure, the extending length is smaller than the width of the lower step surface, the section transverse steel bar 74 extends to the step structure and is welded with the plate transverse steel bar 74, the operation is convenient, and in the cast-in-place concrete process, the concrete also fills the step structure, not only can the binding force between the vault plate 12 and the cast-in-place concrete be improved, but also the cast-in-place concrete is partially occluded and laid on the vault plate 12, so the vault plate 12 has a supporting and restraining effect on the cast-in-place concrete, and the stress performance and the. The plate transverse steel bars 74 on the upper side of the vault connecting structure are welded with the segment transverse steel bars 74, so that the structural strength, the shearing resistance and other stress performances of the nodes can be guaranteed.
Optionally, on the underside of the dome connection, the slab transverse rebars 74 overlap the segment transverse rebars 74 to facilitate construction operations. Further, as shown in fig. 4 and 5, the corresponding end of the peripheral dome section 2 adopts a step structure which is formed at the bottom of the peripheral dome section 2 and has a form that is wide at the top and narrow at the bottom, the section transverse steel bar 74 of the peripheral dome section 2 protrudes from the vertical connecting surface of the step structure and extends to be close to the transverse free end of the dome plate, and the plate transverse steel bar 74 extends to the step structure to overlap with the section transverse steel bar 74. Based on the structure, on the one hand, the lapping length of the steel bars can be increased, the structural strength and the working reliability of the node are improved, on the other hand, when concrete is cast in place, the step structure is filled with the concrete, the binding force between the peripheral arch crown section 2 and the cast in place concrete can be improved, and the peripheral arch crown section 2 is partially meshed and arranged on the cast in place concrete, so that the cast in place concrete has a supporting and restraining effect on the peripheral arch crown section 2, the load bearing capacity of the peripheral arch crown section 2 can be improved, especially in the design of an underground station without a support column, the peripheral arch crown section 2 can meet the structural stress requirement, and the operation safety of the station is ensured.
It will be understood that within the longitudinal length of the underground station (the longitudinal direction of the station is parallel to the longitudinal direction of the rail), a plurality of prefabricated angle arched plates 1 are spliced on each transverse side of the station, so as to facilitate the production, transportation, storage and on-site construction of the prefabricated members. In the two adjacent prefabricated arch angle plates 1, two arch angle plates 12 are spliced, and two side wall plates 11 are spliced; the splicing structure can adopt a conventional tongue-and-groove splicing structure, and in the embodiment, the following splicing structure is preferably adopted:
taking the splicing of two adjacent vault plates 12 as an example, as shown in fig. 3, 6 and 7, two longitudinal ends of each vault plate 12 are provided with post-pouring grooves 811, when two vault plates 12 are spliced, the two post-pouring grooves 811 at the splicing node are spliced to form a post-pouring channel 81, and the post-pouring channel 81 can be a groove-type channel (the top opening is formed as a notch) or a hole-type channel; preferably, a hole-type post-pouring channel 81 is adopted, that is, the notch of the post-pouring groove 811 faces to another dome plate 12 (the upper edge and the lower edge of the notch of the post-pouring groove 811 have certain intervals with the upper plate surface and the lower plate surface of the dome plate 12), a pouring gate 82 communicated with the post-pouring groove 811 is correspondingly arranged on the upper plate surface of the dome plate 12, concrete can be poured into the hole-type post-pouring channel 81 through the pouring gate 82, the pouring gate 82 can be arranged only on one dome plate 12, the pouring gates 82 can also be arranged on two dome plates 12, the two pouring gates 82 at the splicing nodes are spliced to form a post-pouring hole communicated with the post-pouring channel 81, and the pouring gate 82 on each dome plate 12 can be provided with a plurality of holes. It will be appreciated that for the joining of two adjacent side wall panels 11, the pouring gate 82 is not required to be provided, and the concrete pouring operation can be performed from the top end of the post-pouring channel 81.
The splicing structure can ensure that adjacent plates are reliably connected, is convenient to construct, and ensures that the assembled underground station can meet the structural design requirement.
Particularly, the post-cast channel 81 is communicated with the step structure at the transverse free end of the arch crown plate, so that post-cast concrete at the splicing node between two adjacent arch crown plates 12 can be connected with cast-in-place concrete at the connecting node between the arch crown plate 12 and the external arch crown segment 2 into a whole, and the structural integrity and the stress performance of the station arch crown can be effectively improved.
Further, as shown in fig. 6 and 7, longitudinal reinforcing bars 83 in the dome slabs 12 may be inserted into the post-cast channels 81 to improve the bonding force between the dome slabs 12 and the post-cast concrete at the splicing joints.
Further, when the vault plate 12 is provided with the transverse connection steel plate 72, the transverse connection steel plate 72 further comprises two assembled wing plates respectively connected to two longitudinal ends of the web plate, and at the splicing node of the two vault plates 12, the two adjacent assembled wing plates are mutually abutted and fixedly connected into a whole through the assembling bolt. The structure can further improve the structural integrity and the cooperative stress of the vault of the station.
It is understood that the splicing structure described above may be adopted between two adjacent peripheral dome segments 2, and the details are not described herein.
The prefabricated angle arch plate 1 is further optimized, the side wall connecting structure at the bottom end of the side wall plate 11 needs to be connected with an external side wall segment, the side wall connecting structure can refer to the arch crown connecting structure, for example, for the case that the external side wall segment is a cast-in-place structure, the side wall connecting structure can be vertical steel bars 93 extending out of the bottom end of the side wall plate 11, and the like, and for the case that the external side wall segment is also a prefabricated structure, a tongue-and-groove type connecting structure and the like can be adopted; or, the side wall connecting structure includes a plurality of vertical bolt sleeves 91 pre-embedded at the bottom end of the side wall plate 11; or, the side wall connecting structure comprises a vertical connecting steel plate 92 fixed at the bottom end of the side wall plate 11, and a plurality of vertical bolt through holes are formed in the vertical free end of the vertical connecting steel plate 92. The specific connection scheme between the sidewall connection structure and the adjacent sidewall segments is not described herein in detail.
The cast-in-place concrete is easy to operate and different from the cast-in-place concrete when the vault plate block 12-the peripheral vault segment 2 are connected, and the cast-in-place concrete at the connecting node has certain difficulty when the side wall plate block 11-the peripheral side wall segment are connected, in the embodiment, the following preferred scheme is adopted, so that the cast-in-place operation of the concrete can be facilitated, and the concrete casting quality is ensured:
as shown in fig. 8, a grouting hole 94 is formed in the sidewall plate 11, and the grouting hole 94 penetrates through the top end and the bottom end of the sidewall plate 11 respectively; or, be equipped with grout hole 94 in the side wall plate 11 and with the grout passageway of grout hole 94 intercommunication, grout hole 94 link up the bottom of side wall plate 11, the entry and the export of grout passageway are all seted up on the station side wall face of side wall plate 11. The design is suitable for completing the connection between the side wall plate 11 and the lower side wall segment, and concrete can enter the node between the side wall plate 11 and the side wall segment through the grouting hole 94, so that the width of the upper wing plate of the vertical connecting steel plate 92 is required to be smaller than the width of the side wall plate 11 to reserve the opening position of the grouting hole 94, or a grouting avoidance hole is correspondingly formed in the upper wing plate. The grouting holes 94 may be formed by embedding grouting sleeves 94 in the sidewall plates 11; when the grouting passage is provided, the grouting pipe 95 and the grout outlet pipe 96 may be pre-buried in the side wall plate 11, one end of the grouting pipe 95 is communicated with the grouting sleeve 94, and the other end of the grouting pipe penetrates through the station side wall surface of the side wall plate 11 to form a grouting passage inlet, and one end of the grout outlet pipe 96 is communicated with the grouting sleeve 94, and the other end of the grout outlet pipe penetrates through the station side wall surface of the side wall plate 11 to form a grouting passage outlet. In the scheme, part of the vertical steel bars 93 in the side wall segments can extend into the grouting holes 94, so that the structural strength and structural integrity of the nodes can be improved; furthermore, the vertical steel bars 93 in the side wall plate 11 partially extend downwards, and the vertical steel bars 93 in the side wall segments partially extend upwards and are welded with the downward-extending vertical steel bars 93 of the side wall plate 11, so that the structural strength and structural integrity of the nodes can be further improved, and the steel bar welding structure is generally positioned on the station side of the vertical connecting steel plate 92, and is convenient to operate.
Example two
As shown in fig. 1, an embodiment of the present invention provides an assembled underground station, which includes a station bottom plate 5, a station middle plate, two sets of side wall structures, a plurality of vault segments 2, and a plurality of prefabricated vault plates 1 provided in the first embodiment,
the prefabricated arch angle plates 1 on each side are sequentially spliced along the longitudinal direction of the station; the vault plates 12 and the vault sections 2 are correspondingly connected to form a station vault, and the sidewall plates 11 on each side and the sidewall sections on the corresponding side are connected to form a station sidewall.
The station bottom plate 5, the station middle plate and the side wall segments can adopt a cast-in-place structure. In a preferred scheme, as shown in fig. 1, the underground station includes a plurality of middle plate segments 4 and a plurality of prefabricated side wall middle plate node plates 3, wherein the prefabricated side wall middle plate node plates 3 include middle side wall segments and middle plate blocks vertically connected to the middle side wall segments, the middle side wall segments and the middle plate blocks are integrally prefabricated and formed, each middle plate block and each middle plate segment 4 are correspondingly connected to form a station middle plate, the top ends of the middle side wall segments are connected to the side wall plates 11, and the bottom ends of the middle side wall segments are connected to the station bottom plate 5 or to the lower side wall segments arranged on the station bottom plate 5.
Through with middle part side wall festival section and the integrative prefabricated molding of medium plate piece, can further realize the assembly construction of underground station, especially realize the assembly construction of station medium plate, can improve the connected node intensity and the construction quality of station medium plate and station side wall effectively moreover, guarantee the engineering quality and the operation safety of assembled underground station.
For the connection between the middle plate block and the middle plate segment 4, reference may be made to the connection scheme between the dome plate block 12 and the dome segment 2, which is not described herein again.
Preferably, the bottom plate is provided with a lower sidewall segment and connected to the middle sidewall segment, and for the connection between the lower sidewall segment and the middle sidewall segment, reference may be made to the connection scheme between the sidewall plate 11 and the middle sidewall segment, which is not described herein again.
Particularly, for the fabricated underground station, after all prefabricated parts are assembled, the concrete cast-in-place operation at each connecting node and each longitudinal splicing node can be completed simultaneously, so that the construction period can be shortened remarkably, and the structural integrity of the fabricated underground station can be improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A prefabricated corner board, its characterized in that: the side wall plate comprises a vault plate and a side wall plate connected with the vault plate, wherein the vault plate is a curved plate and is integrally prefabricated and formed with the side wall plate, a vault connecting structure used for being connected with an external vault section is arranged at the transverse free end of the vault plate, and a side wall connecting structure used for being connected with an external side wall section is arranged at the bottom end of the side wall plate.
2. The prefabricated cove panel of claim 1, wherein: the vault connecting structure comprises a plurality of transverse bolt sleeves pre-buried at the transverse free ends of vault plates; or the vault connecting structure comprises a transverse connecting steel plate fixed at the transverse free end of the vault plate, and a plurality of transverse bolt through holes are formed in the transverse free end of the transverse connecting steel plate.
3. The prefabricated cove panel of claim 2, wherein: when the vault connecting structure comprises a plurality of transverse bolt sleeves, each transverse bolt sleeve is anchored through an embedded anchor bar embedded in the vault plate.
4. The prefabricated cove panel of claim 2, wherein: when the vault connecting structure comprises the transverse connecting steel plates, each transverse connecting steel plate comprises a web plate, and a mounting end wing plate and a connecting end wing plate which are respectively connected to two transverse ends of the web plate, wherein the mounting end wing plates are buried in transverse free ends of the vault plate blocks and anchored through anchoring steel bars buried in the vault plate blocks, and the bolt through holes are formed in the connecting end wing plates.
5. A prefabricated corner panel according to any one of claims 2 to 4, wherein: and transverse reinforcing steel bars are arranged in the vault plate and extend out from the transverse free end of the vault plate, and the transverse reinforcing steel bars are distributed on the upper side and/or the lower side of the vault connecting structure.
6. The prefabricated cove panel of claim 1, wherein: the side wall connecting structure comprises a plurality of vertical bolt sleeves pre-embedded at the bottom ends of side wall plates; or, the side wall connecting structure comprises a vertical connecting steel plate fixed at the bottom end of the side wall plate, and a plurality of vertical bolt through holes are formed in the vertical free end of the vertical connecting steel plate.
7. The prefabricated cove panel of claim 6, wherein: grouting holes are formed in the side wall plates and penetrate through the top ends and the bottom ends of the side wall plates respectively; or, be equipped with grout hole and with the grout passageway of grout hole intercommunication in the side wall plate, the grout hole link up the bottom of side wall plate, the entry and the export of grout passageway are all seted up on the station side wall face of side wall plate.
8. The utility model provides an assembled underground station, includes station bottom plate, station medium plate and two sets of side wall structures, the side wall structure includes a plurality of side wall segments along the station vertically splice in proper order, its characterized in that: further comprising a plurality of dome segments and a plurality of prefabricated dome panels as claimed in any one of claims 1 to 7,
the prefabricated arch angle plates on each side are sequentially spliced along the longitudinal direction of the station; and the vault plates and the vault sections are correspondingly connected to form a station vault, and the side wall plates on each side and the side wall sections on the corresponding side are connected to form a station side wall.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110307465.1A CN113026806A (en) | 2021-03-23 | 2021-03-23 | Prefabricated angle plate and assembled underground station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110307465.1A CN113026806A (en) | 2021-03-23 | 2021-03-23 | Prefabricated angle plate and assembled underground station |
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| CN113026806A true CN113026806A (en) | 2021-06-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115354690A (en) * | 2022-09-09 | 2022-11-18 | 上海市隧道工程轨道交通设计研究院 | Large-span hollow rigid frame beam type combined structure underground station |
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| CN215483077U (en) * | 2021-03-23 | 2022-01-11 | 中铁第四勘察设计院集团有限公司 | Prefabricated angle plate and assembled underground station |
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