CN211143121U - Prefabricated rail top air duct structural unit - Google Patents
Prefabricated rail top air duct structural unit Download PDFInfo
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- CN211143121U CN211143121U CN201921089020.5U CN201921089020U CN211143121U CN 211143121 U CN211143121 U CN 211143121U CN 201921089020 U CN201921089020 U CN 201921089020U CN 211143121 U CN211143121 U CN 211143121U
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Abstract
The utility model relates to a prefabricated rail top wind channel constitutional unit, include a bottom plate and connect in two blocks of curb plates at bottom plate both ends, both sides roof portion all is equipped with the hoist and mount component that is used for holding to hang. The utility model discloses in, through set up hoisting member on prefabricated rail top wind channel constitutional unit for this prefabricated rail top wind channel constitutional unit can be lifted by lifting device, can adopt ordinary lifting device can carry out this prefabricated rail top wind channel constitutional unit's installation on the structural slab, need not to set up scaffold frame, template etc. and the construction is convenient, and the construction speed is fast, efficient, practices thrift engineering time and cost effectively.
Description
Technical Field
The utility model belongs to the technical field of the rail traffic engineering, concretely relates to prefabricated rail top wind channel constitutional unit.
Background
The rail top air duct structure at the present stage is constructed by cast-in-place reinforced concrete, the construction operation environment is poor, the working procedures are complex, the speed is low, and the construction quality is difficult to guarantee due to the influence of various factors. Meanwhile, a lot of waste building wastes are generated in the construction process, so that resources are wasted and the environment is polluted.
Specifically, the construction of the cast-in-place rail top air duct has the following problems:
(1) the rail top air duct is located below the middle plate of the subway station and above the rail, is a secondary structure of the station, and needs later-stage construction due to factors such as shield construction and the like. During the construction of rail top wind channel later stage, the scaffold frame of erectting the medium plate has all been demolishd, needs to set up scaffold frame and template again, wastes time and energy and takes money.
(2) The rail top air channel utilizes the middle plate to reserve the reinforcing bar and suspends in midair below the middle plate, and rail top air channel space is narrow and small, and there is very big degree of difficulty in reinforcement and concrete placement etc. and construction quality is difficult to obtain guaranteeing, leaves the quality hidden danger easily.
(3) The cast-in-place construction of the rail top air duct is time-consuming, labor-consuming and large in investment, and construction units always resist the construction.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a prefabricated rail top wind channel constitutional unit is related to, can solve prior art's partial defect at least.
An embodiment of the utility model relates to a prefabricated rail top wind channel constitutional unit, including a bottom plate with connect in two blocks of curb plates at bottom plate both ends, two the curb plate top all is equipped with the hoist and mount component that is used for holding hanging.
As one embodiment, the hoisting members arranged at the tops of the side plates are multiple and are arranged at intervals along the longitudinal direction of the air duct.
As one embodiment, the hoisting member comprises a foundation section extending into a concrete structure of the side plate and a bearing and hoisting section connected to the top end of the foundation section and exposed above the side plate, and the bottom of the foundation section is provided with a hook.
As one embodiment, the bearing and hanging section is in an inverted U shape, bearing parts for being matched with the supporting and protecting members on the structural slab after being lifted in place are arranged on the bearing and hanging section, and the bearing parts are respectively connected with two linear parts of the bearing and hanging section.
As one embodiment, the base section is formed by respectively downward extending two straight line parts of the hanging section.
As one embodiment, each hoisting member is provided with a vertical reinforcing steel bar and a stirrup, and the vertical reinforcing steel bar and the stirrup are combined and connected into a steel reinforcement cage structure, and parts of the vertical reinforcing steel bar and the stirrup are exposed above the side plates.
As an embodiment, the bottom plate and the two side plates are prefabricated integrally.
The embodiment of the utility model provides a following beneficial effect has at least:
the utility model discloses in, through set up hoisting member on prefabricated rail top wind channel constitutional unit for this prefabricated rail top wind channel constitutional unit can be lifted by lifting device, can adopt ordinary lifting device can carry out this prefabricated rail top wind channel constitutional unit's installation on the structural slab, need not to set up scaffold frame, template etc. and the construction is convenient, and the construction speed is fast, efficient, practices thrift engineering time and cost effectively.
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 prefabricated rail top duct structural unit (with a vertical wall) provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a prefabricated rail top air duct structural unit (without a vertical wall) provided by an embodiment of the present invention;
fig. 3 is a schematic structural view of a hoisting member provided in an embodiment of the present invention;
fig. 4 is a schematic view of a steel reinforcement cage structure formed by connecting a hoisting member, reinforcing steel bars and stirrups provided by an embodiment of the present invention;
FIG. 5 is a cross-sectional view A-A of FIG. 4;
fig. 6 is a schematic top view of a prefabricated rail top air duct structure unit provided in the embodiment of the present invention;
fig. 7 is a schematic structural diagram of a grooved and tongued bottom plate according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a caulking grouting pipe arranged at a tongue-and-groove joint provided by an embodiment of the invention;
fig. 9 is a schematic diagram of a splicing structure of a prefabricated rail top air duct structure unit provided by an embodiment of the present invention;
fig. 10 is a schematic front view of an assembly structure of a prefabricated rail top air duct structure unit and a station structure plate provided in the embodiment of the present invention;
fig. 11 is a schematic side view of an assembly structure of the rail top duct and the station structural plate provided in the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, 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.
Example one
As shown in fig. 1-6, the embodiment of the utility model provides a prefabricated rail top wind channel constitutional unit 1, including a bottom plate 11 with connect in two blocks of curb plates 12 at bottom plate 11 both ends, curb plate 12 upwards extends from the corresponding side tip of bottom plate 11, generally, after this prefabricated rail top wind channel constitutional unit 1 installs to station structural slab 2, this bottom plate 11's face is on a parallel with the level to, the face of curb plate 12 is on a parallel with vertical.
In one embodiment, the prefabricated rail top air duct structural unit 1 is an integral prefabricated unit, namely the bottom plate 11 and the two side plates 12 are integrally prefabricated, so that the prefabricated rail top air duct structural unit is simple in structure, easy to manufacture and install, less in seam, not prone to air leakage and high in structural strength; in another embodiment, the prefabricated rail top air duct structure unit 1 is a split prefabricated unit, namely, the bottom plate 11 and the side plate 12 are split prefabricated and assembled after being delivered to a site, so that the prefabricated rail top air duct structure unit is easy to manufacture, high in prefabricating efficiency and convenient to transport and maintain at a later stage. Prefabrication of the prefabricated rail top air duct structure unit 1 can be completed under a factory line, size standardization of the prefabricated rail top air duct structure unit 1 can be guaranteed, and industrialization is facilitated.
The prefabrication method is conventional in the art and will not be described in detail herein.
Preferably, the top of each of the two side plates 12 is provided with a hoisting member 131 for bearing and hoisting, that is, the hoisting member 131 is used for cooperating with a hoisting device to hoist the prefabricated rail top air duct structure unit 1.
In this embodiment, through set up hoisting component 131 on prefabricated rail top wind channel constitutional unit 1 for this prefabricated rail top wind channel constitutional unit 1 can be lifted by hoisting equipment, can adopt ordinary hoisting equipment to carry out this prefabricated rail top wind channel constitutional unit 1's installation on station structural slab 2, need not to set up scaffold, template etc. and the construction is convenient, and construction speed is fast, efficient, practices thrift engineering time and cost effectively.
Further preferably, as shown in fig. 6 and 11, the hoisting members 131 provided on the top of each side plate 12 are plural and arranged at intervals along the longitudinal direction of the air duct, preferably at equal intervals. Set up a plurality of hoisting members 131, can guarantee this prefabricated rail top wind channel constitutional unit 1 and lift by crane the stability of operation, moreover, this prefabricated rail top wind channel constitutional unit 1 increases the stability and the reliability that are favorable to this prefabricated rail top wind channel constitutional unit 1 mounting structure with the tie point of station structural slab 2.
The hoisting member 131 described above is further optimized as follows:
as shown in fig. 1, 2 and 10, the hoisting member 131 comprises a foundation section 1311 extending into the concrete structure of the side plate 12 and a hanging section 1312 connected to the top end of the foundation section 1311 and exposed above the side plate 12, and the bottom of the foundation section 1311 is provided with a hook. The hoisting component 131 partially extends into the concrete structure of the side plate 12, so that the reliability of connection between the hoisting component 131 and the side plate 12 is ensured, the hoisting component 131 is prevented from being separated from the side plate 12 in the hoisting process, and the reliability of connection between the prefabricated rail top air duct structure unit 1 and the station structural plate 2 can be improved. The hoisting member 131 can adopt steel bars, hooks are arranged at the bottom of the foundation section 1311 to meet the requirement of steel bar anchoring, and the reliability of concrete connection between the hoisting member and the side plate 12 can be guaranteed.
Obviously, the hanging section 1312 is used for cooperating with the hoisting equipment, and preferably has a certain length, and after the prefabricated rail top air duct structure unit 1 is hoisted in place, the top of the hanging section is preferably located above the station structure plate 2, so that the hook of the hoisting equipment can be unhooked.
The hanging section 1312 is preferably convenient for being hooked by the hook of the hoisting equipment, for example, the top of the hanging section 1312 is provided with a hanging ring structure, and in this embodiment, as shown in fig. 3 and 11, the hanging section 1312 is preferably in an inverted U shape, that is, the hanging section 1312 comprises two straight line parts and a top arc part connecting the two straight line parts, and the arc part can be hooked by the hook of the hoisting equipment to facilitate the hanging. Accordingly, the base section 1311 is preferably formed by two straight line portions of the hanging section 1312 extending downward, respectively, and the reliability of the connection of the hanging member 131 with the side plate 12 is further improved. Of course, the lifting member 131 may also be bound by a lifting rope/sling, which will not be described in detail herein.
Further, as shown in fig. 3, 10 and 11, the hanging section 1312 is provided with supporting portions 1313 for being matched with the supporting and protecting members 23 on the structural panel 2 after being lifted in place, and the supporting portions 1313 are respectively connected with two straight line portions of the hanging section 1312. After the prefabricated rail top air duct structure unit 1 is lifted in place, the supporting part 1313 is matched with the supporting and protecting component 23 on the structure plate 2, namely the supporting part 1313 is supported by the supporting and protecting component 23, so that the prefabricated rail top air duct structure unit 1 can be supported and positioned, and at the moment, the lifting equipment can be unhooked. The supporting portion 1313 may be a connecting rod, both ends of the connecting rod may be welded to the straight line portion of the hanging section 1312, and the supporting and protecting member 23 may be a bolt pin, a bolt plate, or the like, so as to stably support and protect the prefabricated rail top duct structure unit 1.
Further preferably, as shown in fig. 1, fig. 2, fig. 4, fig. 5 and fig. 10, each of the hoisting members 131 is provided with a vertical reinforcing steel bar 132 and a stirrup 133 and is connected in combination to form the reinforcement cage structure 13, and the vertical reinforcing steel bar 132 and the stirrup 133 are partially exposed above the side plate 12. For example, for the hoisting member 131 structure of the inverted U-shaped bearing and hoisting section 1312 and the foundation section 1311 formed by downward extending, two vertical reinforcing steel bars 132 are respectively arranged on two sides of the hoisting member 131 structure, two straight-line sections of the two vertical reinforcing steel bars 132 and the hoisting member 131 are in an annular arrangement form, and the reinforcement cage structure 13 is formed by binding and connecting the two straight-line sections through the stirrups 133, of course, the top of the bearing and hoisting section 1312 is located above the tops of the reinforcing steel bars 132 and the stirrups 133, so that the bearing and hoisting are facilitated; the base section 1311 may be substantially flush with the bottom of the rebar 132 and the bottom of the stirrup 133, or may be located below the bottom of the rebar 132 and the bottom of the stirrup 133, with the specific length determined according to design calculation requirements and the like. Based on the steel reinforcement cage structure 13, the structural stability and reliability of concrete connection between the hoisting member 131 and the side plate 12 can be effectively improved; vertical reinforcing bar 132 and stirrup 133 all have the part to expose in curb plate 12 top, the steel reinforcement cage body still has the part to extend to in the hole for hoist 21 of station structural slab 2 promptly, when cast in situ concrete 22 in the hole for hoist 21 of station structural slab 2, this cast in situ concrete 22 can concretize with the steel reinforcement cage body, improve the structural stability and the reliability that hoisting member 131 and station structural slab 2 are connected, also guaranteed the reliability that above-mentioned prefabricated rail top wind channel constitutional unit 1 and station structural slab 2 are connected. Generally, the bottom of the vertical reinforcing bars 132 may be provided with hooks to improve the reliability of the concrete connection with the side plates 12.
In addition, as shown in fig. 1, the prefabricated rail head duct structural unit 1 may take the structural shape of a drop-off screen door area, i.e., it has a depending wall 121, and in another embodiment, as shown in fig. 2, it may also be used in a structural form without the depending wall 121.
Example two
As fig. 9 and fig. 11, the embodiment of the utility model provides a rail top wind channel, include a plurality of wind channel units 1 that vertically splice in proper order along the wind channel, wherein, at least part wind channel unit 1 adopts the prefabricated rail top wind channel constitutional unit 1 that above-mentioned embodiment provided, and preferably each wind channel unit 1 all adopts above-mentioned prefabricated rail top wind channel constitutional unit 1. The detailed structure of the prefabricated rail top air duct structure unit 1 is not described herein.
EXAMPLE III
As shown in fig. 8 and 9, the embodiment of the present invention provides a rail top air duct, including a plurality of air duct units 1 vertically spliced in proper order along the air duct, each air duct unit 1 is a prefabricated unit, for example, adopt the prefabricated rail top air duct structure unit 1 that the above-mentioned embodiment one provided.
Further preferably, as shown in fig. 8, a joint filling grouting pipe 14 is arranged at the joint of each air duct unit 1, that is, the joint of two adjacent air duct units 1 is subjected to grouting joint filling treatment through the joint filling grouting pipe 14, so that air leakage of the rail top air duct can be effectively prevented, and the use effect of the rail top air duct is ensured.
The caulking slip pipe 14 is a conventional member in the art, and may be prefabricated on the air duct unit 1.
Generally, the air duct unit 1 includes a bottom plate 11 and two side plates 12 connected to two ends of the bottom plate 11, the side plates 12 extend upward from corresponding side ends of the bottom plate 11, after the air duct unit 1 is mounted to the station structure plate 2, the plate surface of the bottom plate 11 is parallel to the horizontal direction, and the plate surfaces of the side plates 12 are parallel to the vertical direction.
In one embodiment, the air duct unit 1 is an integral prefabricated unit, i.e., the bottom plate 11 and the two side plates 12 are integrally prefabricated, so that the air duct unit is simple in structure, easy to manufacture and install, less in seam, difficult to leak air and high in structural strength; in another embodiment, the air duct unit 1 is a split prefabricated unit, that is, the bottom plate 11 and the side plate 12 are split prefabricated and assembled after being delivered to a site, so that the air duct unit is easy to manufacture, high in prefabricating efficiency and convenient to transport and maintain later. Prefabrication of the prefabricated rail top air duct structure unit 1 can be completed under a factory line, size standardization of the prefabricated rail top air duct structure unit 1 can be guaranteed, and industrialization is facilitated.
In two adjacent air duct units 1, the bottom plates 11 of the two air duct units are correspondingly spliced, and the side plates 12 of the two air duct units are correspondingly spliced. Preferably, in two adjacent air duct units 1, the joint of the bottom plate 11 and the joint of the side plate 12 are respectively provided with the joint filling grouting pipe 14, and the joint filling grouting pipes 14 are communicated with each other. The mutual communication of grout filling pipes 14 can ensure the mutual permeation of grouting, ensure the effect of seam filling treatment and further improve the sealing property of the rail top air channel.
In a preferred embodiment, as shown in fig. 8 and 9, the splicing position of each air duct unit 1 is a tongue-and-groove splicing structure. Compared with a flat splicing structure, the grooved splicing structure can improve the splicing quality of the air duct units 1, improve the sealing performance of the rail top air duct, facilitate the splicing of the two adjacent air duct units 1 to be aligned with each other, and improve the splicing efficiency.
Further, as shown in fig. 6 and 7, both longitudinal ends of the bottom plate 11 (i.e., both ends in the longitudinal direction of the air duct) are provided with L-type bottom plate rabbet 111, and two rabbet surfaces of each bottom plate rabbet 111 are a horizontal bottom plate rabbet surface and a vertical bottom plate rabbet surface, respectively.
In one embodiment, as shown in fig. 7, in two bottom plate grooves 111 of each bottom plate 11, a horizontal bottom plate groove surface of one bottom plate groove 111 is located above a corresponding vertical bottom plate groove surface, and a horizontal bottom plate groove surface of the other bottom plate groove 111 is located below the corresponding vertical bottom plate groove surface (i.e., one bottom plate groove 111 is opened from an upper plate surface of the bottom plate 11, and the other bottom plate groove 111 is opened from a lower plate surface of the bottom plate 11), then, in three bottom plates 11 that are sequentially spliced, one bottom plate groove 111 of a middle bottom plate 11 is supported on an adjacent side bottom plate 11, and the other bottom plate groove 111 of the middle bottom plate 11 is supported on another adjacent side bottom plate 11, so that the air duct units 1 of the rail-top air duct are sequentially supported by each other, cooperatively stressed, and have high overall stability.
In another embodiment, some of the bottom plates 11 are first bottom plates 11, and the rest are second bottom plates 11, two bottom plate notches 111 of the first bottom plates 11 are both opened from the upper plate surface of the bottom plate 11 (i.e., the horizontal bottom plate notch surface is located below the corresponding vertical bottom plate notch surface), and two bottom plate notches 111 of the second bottom plates 11 are both opened from the lower plate surface of the bottom plate 11 (i.e., the horizontal bottom plate notch surface is located above the corresponding vertical bottom plate notch surface). In the above-mentioned rail-top air duct, the first bottom plate 11 and the second bottom plate 11 are sequentially arranged in a crossed manner, two second bottom plates 11 are respectively arranged on two sides of each first bottom plate 11, and two first bottom plates 11 (except for the head and tail bottom plates 11) are respectively arranged on two sides of each second bottom plate 11.
Further, as shown in fig. 6 and 9, both longitudinal ends of each side plate 12 are provided with L-type side plate notches 122, and both notch surfaces of each side plate notch 122 are vertical notch surfaces.
In one embodiment, as shown in fig. 6 and 9, of the two side plate tongues 122 of each side plate 12, one of the side plate tongues 122 is open to the outside of the air duct, and the other side plate tongue 122 is open to the inside of the air duct (i.e., one of the side plate tongues 122 is open from the inner plate surface of the side plate 12, and the other side plate tongue 122 is open from the outer plate surface of the side plate 12), then the air duct units 1 of the rail-top air duct are sequentially engaged and overlapped in an inside-outside snap manner, and are cooperatively stressed, so that the overall stability is high. In another embodiment, some of the side panels 12 are first side panels 12, and the rest are second side panels 12, two side panel grooves 122 of the first side panel 12 are both opened from the outer panel surface of the side panel 12, and two side panel grooves 122 of the second side panel 12 are both opened from the inner panel surface of the side panel 12. Then, in the above-mentioned rail-top air duct, the first side plate 12 and the second side plate 12 are arranged in a crossing manner in sequence.
Example four
The embodiment of the utility model provides an assembly structure of prefabricated rail top wind channel constitutional unit 1 and station structural slab 2, including station structural slab 2 and prefabricated rail top wind channel constitutional unit 1.
The prefabricated rail top air duct structural unit 1 can adopt the prefabricated rail top air duct structural unit 1 provided in the first embodiment, and the specific structure thereof is not described herein again.
The assembling holes 21 are formed in the station structural plate 2, when the prefabricated rail top air duct structural unit 1 is hoisted, the assembling holes 21 are formed into the assembling holes 21, and a hoisting device of hoisting equipment located on the station structural plate 2 is matched with the hoisting component 131 on the prefabricated rail top air duct structural unit 1 through the assembling holes 21.
Of course, in another embodiment, the lifting of the precast rail top duct structural unit 1 may also be realized below the station structural slab 2 by a jacking device or the like.
After the prefabricated rail top air duct structure unit 1 rises to the right position, the hoisting member 131 on the prefabricated rail top air duct structure unit 1 extends into the assembly hole 21, and the cast-in-place concrete 22 in the assembly hole 21 can realize the consolidation of the hoisting member 131, namely the connection of the prefabricated rail top air duct structure unit 1 and the station structural slab 2.
Based on the structure, the hoisting component 131 and the prefabricated rail top air duct structure unit 1 are fixed through the cast-in-place concrete 22 in the assembly hole 21, the structure bearing capacity and durability of the prefabricated rail top air duct can be effectively improved through the cast-in-place wet node structure, and the quality of the rail top air duct is improved.
In addition, on the basis of the structure that the supporting part 1313 on the prefabricated rail top air duct is matched with the supporting and protecting component 23 on the structural plate 2, the structure of the prefabricated rail top air duct has better structural bearing capacity and durability by combining the cast-in-place wet node structure.
Further preferably, the hole wall of the assembly hole 21 is at least partially an inclined wall gradually inclined toward the inner side of the hole from top to bottom, and the hoisting member 131 is inserted into the assembly hole 21, that is, the lower end of the inclined wall is closer to the hoisting member 131 than the upper end thereof. Compare in the condition that assembly hole wall is the vertical plane and lead to cast in situ concrete 22 and assembly hole pore wall seam crossing to produce the shearing force, the design of communications wall can improve the bonding strength between cast in situ concrete 22 and station structural slab 2 (promptly assembly hole pore wall), and the assembly hole pore wall can effectively support cast in situ concrete 22 structure, and frictional force between the two is also showing the increase, further improves the structure bearing capacity and the durability in assembled precast rail top wind channel. As a preferable structure, as shown in fig. 10 and 11, the fitting hole 21 is a wedge-shaped hole having a wide top and a narrow bottom, and the effect is further improved.
For the protruding part of the hoisting member 131 protruding from the upper surface of the station structural slab 2, if the station structural slab 2 has a laminated layer structure, the protruding part is directly cast in place in the laminated layer structure; if there is no laminated structure above the station structural panel 2, the protruding portion is embedded in the finishing underlayment of the station structural panel 2.
EXAMPLE five
The embodiment of the utility model provides an assembly structure in rail top wind channel and station structural slab 2, including station structural slab 2 and rail top wind channel, this rail top wind channel can adopt the rail top wind channel that above-mentioned embodiment two or embodiment three provided. The assembling relationship between each air duct unit 1 and the station structural plate 2 can refer to the assembling structure of the prefabricated rail top air duct structural unit 1 and the station structural plate 2 provided by the fourth embodiment.
In addition, the joint of each air duct unit 1 and the lower plate surface of the structural plate 2 is preferably provided with a joint filling grouting pipe, so that the sealing performance of the rail top air duct is further improved.
EXAMPLE six
The embodiment of the utility model provides an installation construction method in rail top wind channel, include:
prefabricating each prefabricated rail top air duct structural unit 1, wherein each prefabricated rail top air duct structural unit 1 is prefabricated with a hoisting component 131;
and (3) carrying out the assembly construction of each prefabricated rail top air duct structure unit 1, wherein the assembly construction of each prefabricated rail top air duct structure unit 1 comprises the following steps: the prefabricated rail top air duct structure unit 1 is lifted in place through the lifting holes 21 formed in the corresponding positions of the station structure plate 2 and the lifting equipment arranged on the station structure plate 2, concrete is poured into the corresponding lifting holes 21, and the corresponding lifting members 131 are fixedly connected to the station structure plate 2.
In the installation and construction method, the specific structures of the prefabricated rail top air duct structure unit 1 and the station structure plate 2 can refer to the relevant contents in the first to fifth embodiments. In general, the size and the arrangement of the reinforcing bars of the bottom plate 11 and the side plates 12 of the prefabricated rail top air duct structural unit 1 can be determined according to structural design calculation, corresponding parameters of the hoisting members 131, the reinforcing steel bars 132, the reinforcing stirrups 133 and the like are determined, and prefabrication of the prefabricated rail top air duct is realized in a factory.
The hoisting equipment can adopt conventional hoisting equipment such as a hoist crane and the like.
Further preferably, after the prefabricated rail top air duct structure unit 1 is lifted in place, the corresponding hoisting member 131 is supported and positioned by the supporting and protecting member 23, and then the cast-in-place concrete 22 in the hoisting hole 21 is poured.
Further preferably, after the prefabricated rail top air duct structural unit 1 to be installed and the installed prefabricated rail top air duct structural unit 1 are spliced in place, grouting and gap filling are conducted at the splicing position of the prefabricated rail top air duct structural unit 1 and the installed prefabricated rail top air duct structural unit 1 through the grouting pipe 14.
Further preferably, the two adjacent prefabricated rail top air duct structure units 1 are spliced by adopting a tongue-and-groove splicing structure.
Further preferably, after the prefabricated rail top air duct structure unit 1 is hoisted in place, grouting and gap filling treatment is performed at the connection position of the prefabricated rail top air duct structure unit 1 and the lower plate surface of the station structure plate 2 by using the grouting pipe 14.
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 (7)
1. The utility model provides a prefabricated rail top wind channel constitutional unit, includes a bottom plate and connect in two blocks of curb plates at bottom plate both ends, its characterized in that: and hoisting members for bearing and hoisting are arranged at the tops of the two side plates.
2. The pre-fabricated rail head duct structural unit of claim 1, wherein: the hoisting members arranged at the tops of the side plates are multiple and are arranged at intervals along the longitudinal direction of the air duct.
3. The pre-fabricated rail head duct structural unit of claim 1, wherein: the hoisting component comprises a foundation section extending into the concrete structure of the side plate and a bearing and hoisting section connected to the top end of the foundation section and exposed above the side plate, and a hook is arranged at the bottom of the foundation section.
4. The pre-fabricated rail head duct structural unit of claim 3, wherein: the bearing and hanging section is in an inverted U shape, bearing parts used for being matched with the supporting and protecting components on the structural slab after being hung in place are arranged on the bearing and hanging section, and the bearing parts are respectively connected with two linear parts of the bearing and hanging section.
5. The pre-fabricated rail head duct structural unit of claim 4, wherein: the basic section is formed by respectively extending two straight line parts of the bearing and hanging section downwards.
6. The pre-fabricated rail head duct structural unit of claim 3, wherein: every hoisting component disposes vertical reinforcing bar and stirrup and built-up connection be the steel reinforcement cage structure, vertical reinforcing bar and stirrup all have the part to expose in the curb plate top.
7. The pre-fabricated rail head duct structural unit of claim 3, wherein: the bottom plate and the two side plates are prefabricated integrally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921089020.5U CN211143121U (en) | 2019-07-12 | 2019-07-12 | Prefabricated rail top air duct structural unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921089020.5U CN211143121U (en) | 2019-07-12 | 2019-07-12 | Prefabricated rail top air duct structural unit |
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| CN211143121U true CN211143121U (en) | 2020-07-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359672A (en) * | 2019-07-12 | 2019-10-22 | 中铁第四勘察设计院集团有限公司 | A kind of prefabricated rail road assembling structure and its construction method against the wind |
-
2019
- 2019-07-12 CN CN201921089020.5U patent/CN211143121U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359672A (en) * | 2019-07-12 | 2019-10-22 | 中铁第四勘察设计院集团有限公司 | A kind of prefabricated rail road assembling structure and its construction method against the wind |
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