CN112523415A - Wind-resistant and shockproof ceiling structure for rail row area of urban rail elevated station and construction method - Google Patents
Wind-resistant and shockproof ceiling structure for rail row area of urban rail elevated station and construction method Download PDFInfo
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- CN112523415A CN112523415A CN202011125673.1A CN202011125673A CN112523415A CN 112523415 A CN112523415 A CN 112523415A CN 202011125673 A CN202011125673 A CN 202011125673A CN 112523415 A CN112523415 A CN 112523415A
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- 230000035939 shock Effects 0.000 claims abstract description 62
- 239000006096 absorbing agent Substances 0.000 claims abstract description 58
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- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 32
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- 239000012634 fragment Substances 0.000 claims abstract description 13
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- 238000009434 installation Methods 0.000 claims description 18
- 229910000838 Al alloy Inorganic materials 0.000 claims description 14
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
- E04B9/061—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members supporting construction for curved ceilings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/18—Means for suspending the supporting construction
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/34—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/34—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles
- E04B9/345—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles consisting of non-parallel slats, e.g. grids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/18—Means for suspending the supporting construction
- E04B2009/186—Means for suspending the supporting construction with arrangements for damping vibration
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Abstract
The invention discloses a wind-resistant and shockproof ceiling structure for a rail running area of an urban rail elevated station and a construction method, wherein the ceiling structure comprises I-shaped steel, two sides of a steel beam of a lower leg of the I-shaped steel are respectively provided with an anchor ear, a shock absorber bolt groove is arranged in the anchor ear, and a shock absorber bolt is sleeved in the shock absorber bolt groove in a penetrating manner; the middle part is provided with a support column for rigid connection; still include four main joist, four sides fossil fragments and universal joint flange nine between form four cone type assembled fossil fragments framework, form four triangle unit assembly areas between four main joist and the four sides fossil fragments, four triangle unit assembly areas are equipped with punching a hole abatvoix triangle unit and aluminium strip shutter triangle unit respectively. The ceiling structure adopts a punching acoustic panel and aluminum strip shutters to form a triangular unit in a processing field, and the triangular unit is hoisted on site to form a 'four-cone-shaped' ceiling, so that the requirements of lighting, sound absorption, space decoration and attractive decoration are met, and the influences of 'pipe stenosis effect', vehicle walking vibration and earthquake action on the ceiling are reduced.
Description
Technical Field
The invention relates to the field of building construction, in particular to a wind-resistant and quakeproof ceiling structure for an urban rail elevated station rail row area and a construction method.
Background
With the rapid development of urban rail transit and the improvement of the living standard of people in China, more and more elevated station rail areas and waiting areas are decorated by suspended ceilings, and meanwhile, the distribution of elevated stations also extends to high-intensity earthquake areas and coastal typhoon areas.
The suspended ceiling of the elevated station is subjected to the narrow tube effect, the vibration effect of the high-speed flying train and potential earthquake threats, particularly the falling or collapse of the suspended ceiling in a rail running area is easily caused by strong narrow tube effect wind in a coastal typhoon area and the earthquake effect in a high-intensity earthquake area, so that the great potential safety hazard is caused to the high-speed running train or the rail traffic is seriously influenced to play a role in earthquake relief, and the technical blind area of the suspended ceiling design of the elevated station at present is formed. Meanwhile, the suspended ceiling of the elevated station also meets the requirements of lighting, noise reduction and the like. The traditional indoor suspended ceiling structure can not meet the technical requirements of the suspended ceiling of the existing elevated station, and the technical problem to be solved urgently is solved for the indoor decoration of the elevated station of the urban rail transit.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a wind-resistant and quakeproof ceiling structure and a construction method for a rail row area of an urban rail elevated station, which can meet the requirements of wind resistance, quakeproof, sound absorption, lighting, decoration, assembly construction and the like.
In order to achieve the purpose, the technical scheme of the invention is as follows:
in a first aspect, the embodiment of the invention provides a wind-resistant and earthquake-resistant ceiling structure for a rail running area of an urban rail elevated station, which comprises I-shaped steel, wherein two sides of a steel beam of a lower leg of the I-shaped steel are respectively provided with an anchor ear, and the anchor ears can be adjusted and fixed along the length direction of the steel beam of the lower leg of the I-shaped steel; a shock absorber bolt groove is formed in the anchor ear, a shock absorber bolt penetrates through the shock absorber bolt groove, a shock absorber is sleeved in the shock absorber bolt, and the tail end of the shock absorber bolt penetrates through a transverse goose egg bolt hole of the support column base and is fastened through a flange nut; the lower surface of the support column base is fixedly provided with a support column rigid connection, the lower end of the support column is reserved with a universal joint mounting screw hole for connecting and mounting a universal joint flange through a universal joint screw, and a fastening nut is arranged in the universal joint screw; be provided with four otic placodes on the circumference side of universal joint flange, the main joist is connected with the otic placode through taking the earrings core cover, connects between the lower extreme of adjacent main joist and installs limit fossil fragments, forms four cone type assembled fossil fragments framework between nine of four main joists, four side fossil fragments and universal joint flange, forms four triangle unit assembly districts between four main joists and the four side fossil fragments, and four triangle unit assembly districts are equipped with the abatvoix triangle unit that punches a hole and aluminium strip shutter triangle unit respectively.
Furthermore, the hoop is provided with an I-steel clamping groove, and the upper end and the lower end of the inner side of the I-steel clamping groove are respectively provided with a rubber strip; and screw holes are formed in the upper surface of the hoop and used for installing locking screws to fasten the hoop on the steel beam of the lower leg of the I-steel.
Furthermore, a shock absorber and a shock absorbing rubber cushion are arranged between the hoop and the support column base; the tail end of the shock absorber bolt is fixed through double nuts and anaerobic glue.
Furthermore, the universal joint flange includes universal joint body, four corners flange and bottom, and the bottom is connected fixedly through hexagon socket head cap screw and four corners flange to fasten the dead lock with the universal joint body.
Furthermore, the end part of the main keel is provided with an earring core sleeve connected with a universal joint flange, and a bolt groove arranged along the long edge is connected with a triangular unit of a punching sound-absorbing plate or an aluminum strip shutter triangular unit for installation; and connecting angle codes are arranged in the triangular units of the punching sound-absorbing board and the triangular units of the aluminum strip shutters so as to be connected with bolt grooves for installation.
Further, the aluminum slat blind triangular units are fitted in the opposite triangular unit fitting regions and located above both sides in the track advancing direction.
Furthermore, the two hoops are fixedly connected through the hoop bolts, and bolt anti-falling grooves are formed in the lower ends of the hoop bolts.
Furthermore, a second damper bolt is sleeved on the side keel in a penetrating manner, a second damper is sleeved in the second damper bolt, the tail end of the second damper bolt is sleeved in an aluminum alloy hoop in a penetrating manner, the aluminum alloy hoop is connected with the truss I-shaped rigid beam, and a screw hole is formed in the upper surface of the aluminum alloy hoop and used for installing a locking screw to fasten the aluminum alloy hoop on the truss I-shaped rigid beam lower leg steel beam; the second shock absorber bolt adopts double-nut fixing and anaerobic adhesive fixing double-layer anti-loosening measures.
Further, the shock absorber is a spring and a shock absorbing rubber mat.
In a second aspect, an embodiment of the present invention provides a method for constructing a wind-resistant and earthquake-resistant suspended ceiling in a rail-mounted area of an urban rail elevated station, which is applied to the above-mentioned suspended ceiling structure, and is characterized in that the method includes the steps of:
positioning and paying-off:
by using a total station, according to the current net rack situation of a rail area, firstly, determining a datum line on a net rack ball node, and then determining the positions of control lines on two sides through the datum line; center lines are respectively positioned between the cross beams, and the intersection points of the longitudinal center lines and the transverse center lines are the anchor ear positioning points;
determining the height of the bottom end of the suspended ceiling in a rail-mounted area according to the actual height of the finished surface of the suspended ceiling of the platform, and calculating the top elevation and the inclined plane of the suspended ceiling; the data are rearranged and then are deepened, and a deepened design processing drawing is sent to a processing factory for processing the modular ceiling units so as to process triangular units of the punching sound-absorbing boards and triangular units of the aluminum strip shutters;
i-shaped steel hoop installation:
when the device is installed, the hoops on the two sides are respectively clamped into the two sides of the lower leg of the structural I-steel, then bolts penetrate and fasten along the open slots at the lower end, the bolt anti-falling slots are formed at the lower end of the bolt, the hoops can be adjusted back and forth along the steel beam, and the locking screws are fastened and fixed after the positions of the hoops are adjusted;
shock absorber installation step:
sleeving a shock absorber bolt into a shock absorber bolt groove, and fixing by using a flange nut to prevent loosening; then sleeving the shock absorber and the support column base into the screw, fixing the shock absorber by double nuts and then fixing the shock absorber by anaerobic adhesion;
mounting a universal joint flange:
bolts of the universal joint flange are matched and connected with bolt holes reserved in the support columns, so that the height of the suspended ceiling is adjusted through the length of the bolts, and the locknuts are fastened after adjustment; before fixing, the universal joint body is sleeved into the screw, after the angle of the universal joint body is adjusted, the bottom cover is fixed by the hexagon socket head cap screw, and after fastening, the universal joint body is locked and cannot rotate so as to achieve the purpose of rigid connection;
installing the four-cone assembled keel:
the end part of the main keel is connected with a universal joint flange lug plate by a lug plate core sleeve, the lower end of the main keel is connected with the side keel by a connecting piece, and the main keel is provided with a bolt groove along the long edge;
a step of hoisting the punching acoustic panel and the triangular unit of the aluminum strip shutter:
forming a triangular unit by a plurality of punched sound-absorbing boards and aluminum strip shutters in a processing plant, hoisting the unit in a transportation site, wherein the triangular unit is provided with a connecting angle bracket which is connected with a four-cone assembled keel bolt groove through bolts; before hoisting, a special construction scheme is compiled, the scheme and the safety technology are handed over, hoisting operation is reported to a supervision unit in advance, and a rail row area operation unit is informed; warning lamps are arranged at two ends of a hoisting area in the hoisting process, a side station supervisor and a security officer respectively watch at the two ends, and when the operation vehicle passes through the rail running area, warning is given to confirm that the part below the safety condition can pass through.
Compared with the prior art, the invention has the beneficial effects that:
according to the wind-resistant and shockproof ceiling structure for the rail row area of the urban rail elevated station, punching sound-absorbing boards and aluminum strip shutters form triangular units in a processing plant, the ceiling units are hinged with the truss at multiple points and hoisted on site to form a 'four-cone-shaped' ceiling, the 'pipe narrow effect' is reduced through the air pressure balance principle and the sound-absorbing function of the punching sound-absorbing boards, and the requirements of lighting function, sound-absorbing function and decoration space are met; adopt subassembly such as staple bolt, bumper shock absorber, universal joint simultaneously, realize that the vertical firm in connection of furred ceiling, three-dimensional or level can move and alleviate the influence of high-speed vehicle walking vibration and seismic action to the furred ceiling, satisfy three-dimensional adjustable function and quick installation requirement.
According to the construction method of the wind-resistant and shockproof ceiling in the rail running area of the urban rail elevated station, the punched sound-absorbing boards and the aluminum strip shutters are mainly manufactured into triangular units in a factory through the assembling mode of the bolts and the screws, the units are hoisted on site, the operation in the rail running area is not affected, the installation efficiency is improved, the maintenance is convenient, and the method is suitable for the ceilings in the rail running areas of urban rail transit stations, intercity rail transit stations, high-speed railway stations and the like.
Drawings
FIG. 1 is a schematic sectional view of a main body of a wind and vibration resistant ceiling structure for an overhead rail area of an urban rail station according to an embodiment of the present invention;
FIG. 2 is a top view of a wind and vibration resistant ceiling structure for an overhead rail area of an urban rail station according to an embodiment of the present invention;
FIG. 3 is a schematic perspective view of FIG. 1;
FIG. 4 is a schematic diagram of a partially separated structure of FIG. 3;
FIG. 5 is a schematic view of the separation structure of FIG. 3;
FIG. 6 is a schematic view of the structure of FIG. 4 from another perspective;
FIG. 7 is a schematic diagram illustrating the overall effect of the anti-wind and anti-vibration suspended ceiling structure for the rail row area of the urban rail elevated station according to the embodiment of the present invention;
FIG. 8 is a bottom view of FIG. 7;
FIG. 9 is a schematic view of the installation and use of the anti-wind and anti-vibration suspended ceiling structure for the rail row area of the urban rail elevated station according to the embodiment of the present invention;
FIG. 10 is an enlarged schematic view at A of FIG. 9;
FIG. 11 is a schematic view of the connection structure of the main keel and the triangular unit of the punching sound-absorbing plate/the triangular unit of the aluminum-strip louver;
in the figure: 1. i-shaped steel; 2. hooping; 3. a damper bolt; 4. a shock absorber; 5. a support pillar; 6. a universal joint screw; 7. a gimbal flange; 8. a main keel; 9. a side keel; 10. triangular units of the punching sound-absorbing boards; 11. an aluminum strip louver triangular unit; 12. a shock-absorbing rubber pad; 13. connecting corner connectors; 14. a second damper bolt; 15. a second shock absorber; 16. an aluminum alloy hoop; 17. truss I-shaped rigid beams; 18. a core sleeve with earrings; 21. a rubber strip; 22. locking the screw; 23. a hoop bolt; 24. the bolt anti-falling groove; 31. a nut; 32. anaerobic gluing; 51. a support column base; 71. four ear plates; 72. a gimbal body; 73. a four-corner flange; 74. a bottom cover; 75. a screw; 81. a bolt slot; 101. punching the sound-absorbing board unit frame; 102. punching a plate; 103. sound-absorbing cotton; 111. a keel of the shutter; 112. a louver blade fixing frame; 113. louver blades; 510. goose egg bolt hole.
Detailed Description
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection, electrical connection and signal connection; they may be connected directly or indirectly through intervening media, so to speak, as communicating between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
Example 1:
referring to fig. 1 to 8, the rail-track-area anti-stenosis-effect four-cone-shaped ceiling structure provided in this embodiment includes an i-steel 1, and two sides of the i-steel lower-leg steel beam are respectively provided with an anchor ear 2, as shown in fig. 3 to 6, the anchor ears 2 can be adjusted and fixed along the length direction of the i-steel lower-leg steel beam, that is, the anchor ears 2 can be adjusted back and forth along the steel beam, which is "three-dimensionally adjustable" back and forth adjustment.
The anchor ear 2 is provided with a shock absorber bolt groove, a shock absorber bolt 3 is sleeved in the shock absorber bolt groove, a shock absorber 4 is sleeved in the shock absorber bolt 3, and the tail end of the shock absorber bolt 3 is sleeved in the goose egg bolt hole 510 of the support column base 51 and fastened through a nut 31, as shown in fig. 4, as the goose egg bolt hole 510 has a certain transverse gap distance, namely the shock absorber bolt 3 can be adjusted and moved left and right in the goose egg bolt hole of the support column base, which is a three-dimensional adjustable left and right adjustment.
The lower fixed surface at support column base 51 is provided with support column 5 rigid connection, and the lower extreme reservation of support column 5 has the bolt hole to connect installation universal joint flange 7 through universal joint screw rod 6, the universal joint screw rod sets up fastening nut, so through 6 length adjustment furred ceiling heights of universal joint screw rod, fasten the nut after the adjustment, this is "three-dimensional adjustable" vertical height adjusts.
As shown in fig. 3 and 5, four lug plates 71 are arranged on the circumferential side surface of the universal joint flange 7, each lug plate 7 is correspondingly connected with and provided with a main keel 8, a side keel 9 is connected and installed between the lower ends of the adjacent main keels 8, four side keels 9 and the universal joint flange 7 form a four-cone assembled keel framework, four triangular unit assembling areas are formed between the four main keels 8 and the four side keels 9, and the four triangular unit assembling areas are respectively assembled with a punched sound-absorbing plate triangular unit 10 and an aluminum strip shutter triangular unit 11. Therefore, the 'four-cone' shape can skillfully avoid a steel structure beam to maximize the height of the suspended ceiling, expand the space and reduce the oppressive feeling, and simultaneously increase the attractive requirement of the shape; in addition, the punched sound-absorbing board, the aluminum strip shutter and the four-cone shape form an irregular reflection surface, so that the noise reduction is effectively reduced, and the lighting requirement is met; the aluminum bar shutter can quickly fill flow velocity pressure difference when a vehicle passes through the aluminum bar shutter quickly, so that the influence of a narrow pipe effect on a suspended ceiling is reduced; the suspended ceiling combines the components such as the hoop 2, the shock absorber 4, the universal joint flange 7, and the shock absorber 4 can cushion the influence of vehicle walking vibration and earthquake action, and the hoop 2 is adjustable around, the support column 5 is transversely adjustable, and the 6 screw rods of universal joint screw rod are vertically adjustable, and the 7 angularly adjustable of universal joint flange realizes antidetonation, three-dimensional adjustable function and quick installation will.
Therefore, the anti-pipe-narrow-effect four-cone-type suspended ceiling structure in the rail-mounted area provided by the embodiment adopts punched-hole sound-absorbing boards and aluminum strip shutters to form a four-cone-type suspended ceiling, the suspended ceiling unit is hinged to the truss at multiple points, lighting, sound absorption and decoration space requirements are met, the influence of the 'narrow-pipe effect' on the suspended ceiling is reduced, and meanwhile, the anti-seismic, three-dimensional adjustable functions and the quick installation requirements are met by adopting components such as hoops, shock absorbers and universal joints.
As a preferred choice of this embodiment, there is an i-steel draw-in groove in this anchor ear 2, the inboard upper and lower ends of draw-in groove set up the rubber strip 21 separately, can electrochemical corrosion; the upper surface of the hoop 2 is provided with screw holes for installing locking screws 22, and the hoop 2 is fastened on the steel beam of the lower leg of the I-steel 1, so that the hoop 2 can be fixed by the locking screws 22 after being adjusted in place. In addition, the two hoops 2 are fixedly connected through a hoop bolt 23, and a bolt anti-falling groove 24 is arranged at the lower end of the hoop bolt 23; connect fixedly through staple bolt 23 between two staple bolts 2 and can further guarantee the steadiness, through being provided with bolt anti-drop groove 24, can prevent that staple bolt 23 from dropping on the platform, avoid pounding the wounded passenger, guarantee the security simultaneously.
As another preference of the present embodiment, a cushion rubber 12 is provided between the shock absorber 4 and the support post base 51 to further enhance the shock absorbing performance; the end of the damper bolt 3 is fixed through the double nuts 31 and fixed through the anaerobic adhesive 32, that is, the damper 4 adopts double-layer anti-loosening measures, and after the double nuts 31 are fixed, the anaerobic adhesive 32 is fixed to prevent the damper 4 from loosening, so that the safety is further enhanced. Specifically, in the present embodiment, the damper 4 is a spring.
As another preferred embodiment, the end of the main keel is provided with a core sleeve 18 with an earring to be connected with a universal joint flange, the main keel 8 is provided with a bolt groove 81 along the long edge to be connected with the triangular unit 10 of the punched sound-absorbing panel or the triangular unit 11 of the aluminum strip shutter, the triangular unit 10 of the punched sound-absorbing panel and the triangular unit 11 of the aluminum strip shutter are both provided with connecting corner connectors 13 to be connected with the bolt groove 81, so as to realize quick assembly, and the punched sound-absorbing panel and the aluminum strip shutter are manufactured into triangular units in a factory, and the field units are hoisted without affecting the operation of a rail area, thereby improving the installation efficiency. Specifically, the connection structure of the main keel to the punched-out sound-absorbing panel triangular unit 10 and the aluminum-strip louver triangular unit 11 is as shown in fig. 11, the punched-out sound-absorbing panel triangular unit 10 is mainly composed of a punched-out sound-absorbing panel unit frame 101, a punched plate 102 mounted on the punched-out sound-absorbing panel unit frame 101 by screws, and a sound-absorbing cotton 103 provided on the punched plate 102, and the aluminum-strip louver triangular unit 11 is mainly composed of a louver keel 111, a louver mount 112 mounted on the louver keel by screws, and a louver 113 mounted on the louver mount 112 by bolts.
In addition, as shown in fig. 9-10, a second damper bolt 14 is further sleeved on the side keel 9, a second damper 15 is sleeved in the second damper bolt 14, the tail end of the second damper bolt 15 is sleeved in an aluminum alloy anchor ear 16, the aluminum alloy anchor ear 16 is connected with the truss i-shaped steel beam 17, and a screw hole is formed in the upper surface of the aluminum alloy anchor ear 16 for installing a locking screw 16 to fasten the aluminum alloy anchor ear 16 on the lower leg steel beam of the truss i-shaped steel beam 17; the second shock absorber bolt 14 also adopts double-nut fixing and anaerobic adhesive fixing double-layer anti-loosening measures; so, can be so that the original truss I-shaped rigid beam 17 of limit fossil fragments 9 and platform links together, further guarantee the safety steadiness, can further cushion vehicle walking vibration and earthquake effect influence simultaneously.
Specifically, the aluminum slat blind triangular unit 11 is fitted in the opposite triangular unit fitting regions and above both sides in the track advancing direction, to further avoid the occurrence of the "throat effect".
The universal joint flange 7 comprises a universal joint body 72, four-corner flanges 73 and a bottom cover 74, wherein the bottom cover 74 is fixedly connected with the four-corner flanges 73 through hexagon socket head cap screws 75, so that the universal joint body 72 is fastened and locked, looseness can be prevented for a long time, namely the angle of the universal joint body 72 is adjustable, and the universal joint body 72 is fastened and locked after the angle is adjusted.
Example 2:
the embodiment provides a construction method of a four-cone type suspended ceiling with a pipe-narrow effect resistance in a rail-mounted area, which is applied to the suspended ceiling structure in the embodiment 1, and the method comprises the following steps:
positioning and paying-off:
by using a total station, according to the current net rack situation of a rail area, firstly, determining a datum line on a net rack ball node, and then determining the positions of control lines on two sides through the datum line; center lines are respectively positioned between the cross beams, and the intersection points of the longitudinal center lines and the transverse center lines are the anchor ear positioning points;
determining the height of the bottom end of the suspended ceiling in a rail-mounted area according to the actual height of the finished surface of the suspended ceiling of the platform, and calculating the top elevation and the inclined plane of the suspended ceiling; and (4) carrying out deepening design again after data are arranged, and sending a deepening design processing drawing to a processing factory for processing the modular ceiling unit so as to process a triangular unit of the punching sound-absorbing board and a triangular unit of an aluminum strip shutter.
I-shaped steel hoop installation:
the hoops adopt aluminum alloy combined hoops which are respectively arranged on two sides of the lower leg of the structural I-steel, the hoops on the two sides are respectively clamped into the two sides of the lower leg of the structural I-steel during installation, bolts penetrate into and are fastened along an open slot at the lower end, a bolt anti-falling slot is arranged at the lower end of bolt fixing, the hoops can be adjusted back and forth along the steel beam, the three-dimensional adjustable back and forth adjustment is realized, and a set screw is fixed after the position is adjusted.
Shock absorber installation step:
the suspended ceiling connecting structure is provided with the shock absorber, so that the influence of high-frequency vibration and earthquake action of vehicle walking on the suspended ceiling can be reduced. Sleeving a shock absorber bolt into a shock absorber bolt groove, and fixing by using a flange nut to prevent loosening; then the shock absorber and the support column base are sleeved into the screw, the shock absorber adopts double-layer anti-loosening measures, and after the shock absorber is fixed by double nuts, the shock absorber is fixed by anaerobic adhesive. The rigid connection is realized by replacing a suspender with a support column, a goose egg bolt hole is arranged on a base of the support column, the left and right adjustment can be realized, the left and right adjustment is three-dimensional adjustable, and an M30 bolt hole is reserved at the lower end of the support column and can be connected with a universal joint flange.
Mounting a universal joint flange:
the universal joint flange is an important connecting point for adjusting the angle deviation of the suspended ceiling, the bolt of the universal joint flange is an M30 bolt, the universal joint flange is matched and connected with the reserved M30 bolt hole of the support column, the height of the suspended ceiling can be adjusted through the length of the bolt, and the adjustment is a three-dimensional adjustable vertical height adjustment; in order to prevent the universal joint from loosening for a long time, an outer nut is additionally arranged for fastening, the flange is sleeved into the screw before fixing, the bottom cover is fixed by the inner hexagonal bolt after the angle of the universal joint flange is adjusted, and the universal joint is locked and cannot rotate after fastening so as to achieve the purpose of rigid connection.
Installing the four-cone assembled keel:
the main joist tip is connected with universal joint flange otic placode with otic placode core cover, and the lower extreme is connected with limit fossil fragments with the connecting piece, and the main joist sets up the bolt groove along long limit, and the main joist sets up bolt groove and triangle unit high-speed joint along long limit.
A step of hoisting the punching acoustic panel and the triangular unit of the aluminum strip shutter:
forming a triangular unit by a plurality of punched sound-absorbing boards and aluminum strip shutters in a processing plant, hoisting the unit in a transportation site, wherein the triangular unit is provided with a connecting angle bracket which is connected with a four-cone assembled keel bolt groove through bolts; before hoisting, a special construction scheme is compiled, the scheme and the safety technology are handed over, hoisting operation is reported to a supervision unit in advance, and a rail row area operation unit is informed; warning lamps are arranged at two ends of a hoisting area in the hoisting process, a side station supervisor and a security officer respectively watch at the two ends, and when the operation vehicle passes through the rail running area, warning is given to confirm that the part below the safety condition can pass through.
Therefore, the construction method of the anti-pipe-stenosis effect four-cone type suspended ceiling in the rail traffic area provided by the embodiment mainly comprises the steps of manufacturing the punched sound-absorbing boards and the aluminum strip shutters into triangular units in a factory through an assembling mode of screws and bolts, hoisting the triangular units in field units, not influencing operation in the rail traffic area, improving installation efficiency, and being suitable for suspended ceilings in the rail traffic areas such as urban rail transit stations, intercity rail transit stations and high-speed railway stations.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.
Claims (10)
1. The wind-resistant and shockproof ceiling structure for the rail running area of the urban rail elevated station is characterized by comprising I-shaped steel, wherein two sides of a steel beam of a lower leg of the I-shaped steel are respectively provided with an anchor ear, and the anchor ears can be adjusted and fixed along the length direction of the steel beam of the lower leg of the I-shaped steel; a shock absorber bolt groove is formed in the anchor ear, a shock absorber bolt penetrates through the shock absorber bolt groove, a shock absorber is sleeved in the shock absorber bolt, and the tail end of the shock absorber bolt penetrates through a transverse goose egg bolt hole of the support column base and is fastened through a flange nut; the lower surface of the support column base is fixedly provided with a support column rigid connection, the lower end of the support column is reserved with a universal joint mounting screw hole for connecting and mounting a universal joint flange through a universal joint screw, and a fastening nut is arranged in the universal joint screw; be provided with four otic placodes on the circumference side of universal joint flange, the main joist is connected with the otic placode through taking the earrings core cover, connects between the lower extreme of adjacent main joist and installs limit fossil fragments, forms four cone type assembled fossil fragments framework between nine of four main joists, four side fossil fragments and universal joint flange, forms four triangle unit assembly districts between four main joists and the four side fossil fragments, and four triangle unit assembly districts are equipped with the abatvoix triangle unit that punches a hole and aluminium strip shutter triangle unit respectively.
2. The wind and vibration resistant suspended ceiling structure in the rail traveling region of an urban rail elevated station according to claim 1, wherein the anchor ear is provided with an I-steel clamping groove, and the upper end and the lower end of the inner side of the I-steel clamping groove are respectively provided with a rubber strip; and screw holes are formed in the upper surface of the hoop and used for installing locking screws to fasten the hoop on the steel beam of the lower leg of the I-steel.
3. The urban rail elevated station rail-mounted area wind-resistant and earthquake-proof ceiling structure as claimed in claim 1, wherein a shock absorber and a shock-absorbing rubber cushion are arranged between the anchor ear and the supporting column base; the tail end of the shock absorber bolt is fixed through double nuts and anaerobic glue.
4. The structure of a wind and vibration resistant suspended ceiling in an overhead rail area of an urban rail according to claim 1, wherein the gimbal flange comprises a gimbal body, four-corner flanges and a bottom cover, and the bottom cover is fixedly connected with the four-corner flanges through hexagon socket head cap screws so as to tightly lock the gimbal body.
5. The structure of a wind and vibration resistant suspended ceiling in an overhead rail area of an urban rail according to claim 1, wherein an earring core sleeve is arranged at the end of the main keel and connected with a universal joint flange, and a bolt groove is arranged along the long edge and connected with a triangular unit of a punched sound-absorbing board or a triangular unit of an aluminum strip shutter; and connecting angle codes are arranged in the triangular units of the punching sound-absorbing board and the triangular units of the aluminum strip shutters so as to be connected with bolt grooves for installation.
6. The trackside anti-throat effect tetrapod-type ceiling construction of claim 1 or 6, wherein the aluminum slat blind delta units are mounted above and parallel to the listed direction of travel, and the sound absorbing panel delta units are mounted above and to either side of the direction of travel of the train.
7. The structure of a wind and vibration resistant suspended ceiling in an overhead rail area of an urban rail according to claim 2, wherein two anchor ears are fixedly connected by anchor ear bolts, and bolt anti-falling grooves are provided at the lower ends of the anchor ear bolts.
8. The wind and vibration resistant suspended ceiling structure for the rail traveling region of an urban rail elevated station according to claim 1, wherein a second damper bolt is further sleeved on the side keel, a second damper is sleeved in the second damper bolt, the tail end of the second damper bolt is sleeved in an aluminum alloy anchor ear, the aluminum alloy anchor ear is connected with the truss I-shaped steel beam, and a screw hole is formed in the upper surface of the aluminum alloy anchor ear for installing a locking screw 16 to fasten the aluminum alloy anchor ear 16 on the lower leg steel beam of the truss I-shaped steel beam; the second shock absorber bolt adopts double-nut fixing and anaerobic adhesive fixing double-layer anti-loosening measures.
9. The structure of a wind and vibration resistant suspended ceiling in an urban rail elevated station rail-mounted area according to claim 1 or 3, wherein the shock absorber is a spring and a shock absorbing rubber pad.
10. A method for constructing a wind-resistant and earthquake-proof ceiling in a rail-mounted area of an urban rail elevated station, which is applied to the ceiling structure of claim 1, wherein the method comprises the following steps:
positioning and paying-off:
the method comprises the following steps of firstly, determining a datum line on the center of a steel structure by using a total station according to the current steel structure situation of a rail traveling area, and then determining the positions of control lines on two sides through the datum line; center lines are respectively positioned between the cross beams, and the intersection points of the longitudinal center lines and the transverse center lines are the anchor ear positioning points;
determining the height of the bottom end of the suspended ceiling in a rail-mounted area according to the actual height of the finished surface of the suspended ceiling of the platform, and calculating the top elevation and the inclined plane of the suspended ceiling; the data are rearranged and then are deepened, and a deepened design processing drawing is sent to a processing factory for processing the modular ceiling units so as to process triangular units of the punching sound-absorbing boards and triangular units of the aluminum strip shutters;
i-shaped steel hoop installation:
when the device is installed, the hoops on the two sides are respectively clamped into the two sides of the lower leg of the structural I-steel, then bolts penetrate and fasten along the open slots at the lower end, the bolt anti-falling slots are formed at the lower end of the bolt, the hoops can be adjusted back and forth along the steel beam, and the locking screws are fastened and fixed after the positions of the hoops are adjusted;
shock absorber installation step:
sleeving a shock absorber bolt into a shock absorber bolt groove, and fixing by using a flange nut to prevent loosening; then sleeving the shock absorber and the support column base into the screw, fixing the shock absorber by double nuts and then fixing the shock absorber by anaerobic adhesion;
mounting a universal joint flange:
bolts of the universal joint flange are matched and connected with bolt holes reserved in the support columns, so that the height of the suspended ceiling is adjusted through the length of the bolts, and the locknuts are fastened after adjustment; before fixing, the universal joint body is sleeved into the screw, after the angle of the universal joint body is adjusted, the bottom cover is fixed by the hexagon socket head cap screw, and after fastening, the universal joint body is locked and cannot rotate so as to achieve the purpose of rigid connection;
installing the four-cone assembled keel:
the end part of the main keel is connected with a universal joint flange lug plate by a lug plate core sleeve, the lower end of the main keel is connected with the side keel by a connecting piece, and the main keel is provided with a bolt groove along the long edge;
a step of hoisting the punching acoustic panel and the triangular unit of the aluminum strip shutter:
forming a triangular unit by a plurality of punched sound-absorbing boards and aluminum strip shutters in a processing plant, hoisting the unit in a transportation site, wherein the triangular unit is provided with a connecting angle bracket which is connected with a four-cone assembled keel bolt groove through bolts; before hoisting, a special construction scheme is compiled, the scheme and the safety technology are handed over, hoisting operation is reported to a supervision unit in advance, and a rail row area operation unit is informed; warning lamps are arranged at two ends of a hoisting area in the hoisting process, a side station supervisor and a security officer respectively watch at the two ends, and when the operation vehicle passes through the rail running area, warning is given to confirm that the part below the safety condition can pass through.
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