CN111396791A - Tunnel lighting lamp mounting structure suitable for high-speed magnetic suspension railway - Google Patents
Tunnel lighting lamp mounting structure suitable for high-speed magnetic suspension railway Download PDFInfo
- Publication number
- CN111396791A CN111396791A CN202010318667.1A CN202010318667A CN111396791A CN 111396791 A CN111396791 A CN 111396791A CN 202010318667 A CN202010318667 A CN 202010318667A CN 111396791 A CN111396791 A CN 111396791A
- Authority
- CN
- China
- Prior art keywords
- bolt
- shaped
- tunnel
- lighting lamp
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
- F21V21/04—Recessed bases
- F21V21/047—Mounting arrangements with fastening means engaging the inner surface of a hole in a ceiling or wall, e.g. for solid walls or for blind holes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/101—Outdoor lighting of tunnels or the like, e.g. under bridges
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a tunnel lighting lamp mounting structure suitable for a high-speed magnetic levitation railway, which comprises a pre-buried channel and a T-shaped bolt, wherein the pre-buried channel is completely pre-buried at the top of a tunnel and extends forwards and backwards; the longitudinal section of the T-shaped bolt is provided with a part A and a part B, the lower left corner and the lower right corner of the part A are both V-shaped, and the V-shaped corners are also both acute angles so as to respectively extend into the lower left corner and the lower right corner of the first part. The invention provides a fixed stressed platform for the lighting lamp, the lighting lamp can be firmly fixed at the top of the tunnel, and the channel steel transmits the dynamic load generated by the dead weight of the lighting lamp and the wind pressure during the running of the train to the tunnel lining concrete through the anchor rod, so that the lighting lamp is more stable.
Description
Technical Field
The invention belongs to the field of high-speed magnetic levitation railways, and particularly relates to a tunnel lighting lamp mounting structure.
Background
The lighting lamp in the high-speed railway tunnel is fixed on the inner wall of the tunnel through the expansion bolt, and the expansion bolt bears the weight of the lighting lamp and also needs to bear wind pressure generated when a train passes through at high speed. The installation position of the tunnel lighting lamp is often closer to the front line of the railway, and serious potential safety hazards can be caused to the safe operation of the train if the tunnel lighting lamp loosens or falls off.
By referring to the related documents, for a high-speed electrified railway:
(1) when the running speed of the train exceeds 140km/h, the influence of wind power needs to be considered, and the strength test of equipment in the tunnel under the influence of the wind power needs to be tested;
(2) when the running speed of the train exceeds 250km/h, the wind speed influence of 41m/s is considered in design;
(3) when the running speed of the train exceeds 350km/h, the influence of the wind speed of 49m/s is considered in the design.
Aiming at the existing high-speed magnetic suspension railway, the speed per hour is far higher than that of a high-speed rail, and the maximum tension and the shear force of each bolt in a tunnel are far larger than the wind speed of 49 m/s. The defects can be multiplied by times because the wind pressure generated by the high-speed passing of the train is huge.
On the other hand, the train of the high-speed magnetic suspension railway runs at a high speed, the density and the running load are greatly increased, and the reciprocating swing amplitude and the lifting amount of the tunnel lighting lamp in the longitudinal plane and the transverse plane are also greatly increased. The tunnel lining structure is prevented from being damaged by inevitable vibration of expansion bolts for fixing the lighting lamps in the running process of a train.
Disclosure of Invention
Aiming at the defects or improvement requirements of the prior art, the invention provides the tunnel lighting lamp mounting structure suitable for the high-speed magnetic suspension railway, and the lighting lamp is fixed by utilizing the embedded channel and the T-shaped bolt device, so that the mounting reliability of the tunnel lighting lamp is effectively improved.
In order to achieve the above object, according to one aspect of the present invention, there is provided a tunnel lighting lamp mounting structure for a high-speed magnetic levitation railway, comprising an embedded channel and a T-bolt, wherein,
the embedded channel is completely embedded at the top of the tunnel and extends forwards and backwards, the embedded channel comprises a channel steel and an I-shaped anchor rod, the I-shaped anchor rod comprises two cross rods and a vertical rod connected with the two cross rods, the cross rods below the vertical rods are welded at the top of the channel steel, the length direction of the cross rods is consistent with the width direction of the channel steel, the channel steel is provided with a T-shaped groove used for mounting the T-shaped bolt, the cross section of the T-shaped groove is provided with a first part and a second part, the width of the first part is larger than that of the second part, the lower left corner of the first part is V-shaped, the V-shaped angle of the lower left corner of the first part is an acute angle, and the lower right corner of the first part is bilaterally;
t type bolt device is including being used for putting into T type bolt in the T type groove and connecting nut on the T type bolt, T type bolt's longitudinal section has A part and B part, the lower left corner and the lower right corner of A part also are V-arrangement and the V-arrangement angle of lower right corner also are the acute angle, in order to stretch into respectively the lower left corner and the lower right corner of first portion.
Preferably, the channel is disposed along the longitudinal length of the tunnel.
Preferably, the T-shaped bolt is further provided with a plane gasket and/or a spherical washer.
Preferably, the width of the bolt head of the T-shaped bolt is less than or equal to the width of the second part of the T-shaped groove along the left-right direction, and the width of the second part of the T-shaped groove along the left-right direction is less than or equal to the width of the bolt head of the T-shaped bolt along the left-right direction.
Preferably, after the T-shaped bolt is installed in the T-shaped groove, the top of the T-shaped bolt is spaced from the inner surface of the channel steel.
Preferably, the junction of the first part and the second part of the cross section of the T-shaped groove is transited by a fillet.
Preferably, the corners of the first part of the cross section of the T-shaped groove are rounded off.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
1) the scheme of the embedded channel is mainly characterized in that the embedded channel can be connected to a lining concrete structure of a tunnel without any drilling bolt or welding mode. The anchor rod at the top of the channel steel and the concrete can generate large bond stress, and the bond stress provides a fixed stress platform for the lighting lamp, so that the lighting lamp can be firmly fixed on the top of the tunnel. The pre-buried channel transmits dynamic load including dead weight of the lighting lamp and wind pressure generated during running of the train to tunnel lining concrete through the anchor rods.
2) After the T-shaped bolt is inserted into the channel steel along the direction of the notch of the channel steel, the bolt can be clamped in the channel steel by clockwise rotating the bolt by 90 degrees, the hexagon nut, the gasket and the like are sleeved together to fasten the bolt, the lighting lamp in the tunnel is fastened in the pre-buried channel steel through the T-shaped bolt, the mounting reliability of the lighting lamp is high, the process is relatively simple, the quality is reliable, the mounting position of equipment can be adjusted, the service life is long, and the operation is easy to maintain and adjust.
3) The embedded channel is led to the elongated, runs through whole tunnel, and the bolt can slide, according to the adjustment of illumination lamps and lanterns mounted position. The illumination lamp is arranged on the embedded channel in the tunnel, the channel steel provides uniform force for the concrete structure of the tunnel, and the single-point stress is avoided, so that a reinforced integral linear structure is formed in the surface layer of the tunnel lining, the tunnel is more stable, and the illumination lamp is more stable.
Drawings
Fig. 1 is a schematic view of a buried channel and a T-bolt installed in a tunnel according to the present invention;
FIG. 2 is a schematic view of a channel of the present invention;
fig. 3a and 3b are front and left side views, respectively, of one gauge bolt for use in the present invention;
fig. 4a and 4b are front and left side views, respectively, of another gauge bolt for use with the present invention;
FIG. 5 is a schematic view of a T-bolt of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in the figures, the tunnel 100 lighting lamp mounting structure suitable for the high-speed magnetic levitation railway comprises an embedded channel 1 and a T-shaped bolt 21, wherein,
the embedded channel 1 is completely embedded in the top of the tunnel 100 and extends forwards and backwards, the embedded channel 1 comprises a channel steel 11 and an i-shaped anchor 12, the i-shaped anchor 12 comprises two cross bars 121 and a vertical bar 122 connecting the two cross bars 121, the cross bar 121 below the vertical bar 122 is welded on the top of the channel steel 11, the length direction of the cross bar 121 is consistent with the width direction of the channel steel 11, the channel steel 11 is provided with a T-shaped groove 111 for mounting the T-shaped bolt 21, the cross section of the T-shaped groove 111 is provided with a first part 111 and a second part 112, the width of the first part 111 is larger than that of the second part 112, the lower left corner 111a of the first part 111 is V-shaped, the V-shaped angle is an acute angle, the acute angle is preferably 60 degrees, and the lower right corner 111b of the first part 111 is symmetrical to the lower left corner 111a of the first part 111; the geometrical shape and the dimensional deviation of the cross section of the channel steel 11 are shown in table 1.
TABLE 1 schematic diagram of the shape and size of the channel 11
The concrete dimensions of the anchor rods in fig. 3a, 3b are shown in table 2.
Table 2 dimension schematic of anchor rod
The concrete dimensions of the anchor rods in fig. 4a, 4b are shown in table 2.
Table 3 dimension schematic diagram of anchor rod
The scheme of the embedded channel 1 is mainly characterized in that the embedded channel 1 can be connected to the lining concrete structure of the tunnel 100 without any drilling bolt or welding mode. The anchor rods on the channel steel 11 and the concrete can generate large bond stress, and the bond stress provides a fixed stress platform for the lighting lamp, so that the lighting lamp can be firmly fixed on the top of the tunnel 100. The channel steel 11 transmits the dynamic load including the dead weight of the lighting lamp and the wind pressure generated during the running of the train to the tunnel 100 through the anchor rods to line the concrete.
The T-shaped bolt device 2 comprises a T-shaped bolt 21 and a nut 22, the T-shaped bolt 21 is used for being placed into a T-shaped groove 111, the nut 22 is connected to the T-shaped bolt 21, the longitudinal section of the T-shaped bolt 21 is provided with an A portion 211 and a B portion 212, the lower left corner 211a and the lower right corner 211B of the A portion 211 are both V-shaped, the V-shaped corners are also both acute angles, and therefore the T-shaped bolt device can extend into the lower left corner 111a and the lower right corner 111B of the first portion 111 respectively. The T-shaped groove 111 and the T-bolt 21 are provided with acute angles at their lower left and lower right corners, which is a significant advantage over right angles. If the angle is a right angle, the T-shaped bolt 21 has a relatively large vertical downward force on the channel steel 11 when the T-shaped bolt 21 is impacted by a train on a high-speed maglev railway, and if the angle is a right angle, the nut 22 on the T-shaped bolt 21 is easy to slide relative to the T-shaped bolt 21, so that looseness occurs. The acute angle of the V shape is arranged, so that the acting force of the T-shaped bolt 21 on the channel steel 11 can be decomposed into horizontal and vertical forces, and the nut 22 is not easy to slide by reducing the relative acting force of the nut 22 on the T-shaped bolt 21 and the T-shaped bolt 21. And the acute angle of V-arrangement itself also can effectively reduce T type bolt 21's home range, lets T type bolt 21 be difficult for rocking.
The lower left corner 211a and the lower right corner 211b of the a-portion 211 are left-right symmetrical, the acute angle of the lower left corner 211a is preferably 61 ° ± 0.5 °, and the lower left corner 211a and the lower right corner 211b of the a-portion 211 extend into the lower left corner 111a and the lower right corner 111b of the first portion 111, respectively. The acute angle between the left lower corner 211a and the right lower corner 211b of the part a 211 of the T-shaped bolt 21 is slightly larger than the acute angle between the left lower corner 111a and the right lower corner 111b of the T-shaped groove 111, so that a certain gap is allowed between the T-shaped bolt 21 and the channel steel 11 at the position, the T-shaped bolt 21 and the channel steel 11 can have slight expansion allowance and relative movement amount, and the local stress is prevented from being overlarge. Preferably, after the T-bolt 21 is installed in the T-shaped groove 111, a distance exists between the top of the T-bolt 21 and the inner surface of the channel 11, which also allows the T-bolt 21 and the channel 11 to have a slight amount of expansion and contraction and a slight amount of relative movement. Furthermore, preferably, a planar gasket and/or a spherical washer is/are further provided on the T-bolt 21.
Further, the channel steel 11 is disposed along the longitudinal length of the tunnel 100. Due to the fact that the channel steel 11 is in a through-long type and penetrates through the whole tunnel 100, the bolts can slide and can be adjusted according to the installation position of the lighting lamp. On the embedded channel 1 of illumination lamps and lanterns in tunnel 100, channel-section steel 11 is the even power for tunnel 100 concrete structure, and single-point atress not, therefore be favorable to forming a reinforced whole linear structure in tunnel 100 lining top layer, can make tunnel 100 more firm, illumination lamps and lanterns are more stable. The process is relatively simple, the quality is reliable, the installation position of the equipment can be adjusted, the service life is long, and the maintenance and the adjustment are easy after the operation.
Further, the width of the bolt head of the T-shaped bolt 21 is less than or equal to the width of the second part 112 of the T-shaped groove 111 along the left-right direction, and the width of the second part 112 of the T-shaped groove 111 along the left-right direction is less than or equal to the length of the bolt head of the T-shaped bolt 21 is less than or equal to the width of the first part 111 of the T-shaped groove 111 along the left-right direction. Make T type bolt along the notch direction of channel-section steel 11 insert the channel-section steel 11 after like this, T type bolt can clockwise rotation 90 can be with the bolt chucking in channel-section steel 11, sheathe the bolt fastening together to hexagon nut 22 and gasket etc. and live, illumination lamps and lanterns in tunnel 100 pass through T type bolt fastening in pre-buried good channel-section steel 11, illumination lamps and lanterns installation reliability is high, the technology is simple relatively, the quality is reliable, adjustable equipment fixing position, long service life, easy to maintain adjustment after the operation.
Furthermore, the corners of the first portion 111 of the cross section of the T-shaped groove 111 are rounded, and the junction between the first portion 111 and the second portion 112 of the cross section of the T-shaped groove 111 is rounded, so that the stress concentration can also be reduced.
The 1 basis of embedded channel in tunnel 100 of high-speed magnetic levitation railway relies on bond stress that produces between 11 top welded stock of channel-section steel and the concrete to provide a stable load platform for the illumination lamps and lanterns, channel-section steel 11 can firmly fix the illumination lamps and lanterns to will including the static load on the illumination lamps and lanterns and the dynamic load that the train goes the in-process at a high speed and produce passes through the stock and transmit the concrete on tunnel 100, the illumination lamps and lanterns in tunnel 100 pass through T type bolt-up in pre-buried channel-section steel 11, effectively promote tunnel 100 illumination lamps and lanterns installation reliability.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A tunnel lighting lamp mounting structure suitable for a high-speed magnetic levitation railway is characterized by comprising a pre-buried channel and a T-shaped bolt device, wherein,
the embedded channel is completely embedded at the top of the tunnel and extends forwards and backwards, the embedded channel comprises a channel steel and an I-shaped anchor rod, the I-shaped anchor rod comprises two cross rods and a vertical rod connected with the two cross rods, the cross rods below the vertical rods are welded at the top of the channel steel, the length direction of the cross rods is consistent with the width direction of the channel steel, the channel steel is provided with a T-shaped groove used for mounting the T-shaped bolt, the cross section of the T-shaped groove is provided with a first part and a second part, the width of the first part is larger than that of the second part, the lower left corner of the first part is V-shaped, the V-shaped angle of the lower left corner of the first part is an acute angle, and the lower right corner of the first part is bilaterally;
t type bolt device is including being used for putting into T type bolt in the T type groove and connecting nut on the T type bolt, T type bolt's longitudinal section has A part and B part, the lower left corner and the lower right corner of A part also are V-arrangement and the V-arrangement angle of lower right corner also are the acute angle, in order to stretch into respectively the lower left corner and the lower right corner of first portion.
2. The mounting structure of a tunnel lighting fixture suitable for a high-speed magnetic levitation railway as claimed in claim 1, wherein the channel steel is arranged along the longitudinal length of the tunnel.
3. The mounting structure of the tunnel lighting lamp for the high-speed magnetic levitation railway as claimed in claim 1, wherein the T-shaped bolt is further provided with a planar gasket and/or a spherical gasket.
4. The tunnel lighting lamp mounting structure for the high-speed magnetic levitation railway as claimed in claim 1, wherein the width of the bolt head of the T-shaped bolt is less than or equal to the width of the second part of the T-shaped groove in the left-right direction, and the width of the second part of the T-shaped groove in the left-right direction is less than or equal to the length of the bolt head of the T-shaped bolt is less than or equal to the width of the first part of the T-shaped groove in the left-right direction.
5. The mounting structure of a tunnel lighting fixture for a high-speed magnetic levitation railway as claimed in claim 1, wherein the top of the T-bolt is spaced from the inner surface of the channel after the T-bolt is mounted in the T-slot.
6. The mounting structure of the tunnel lighting lamp for the high-speed magnetic levitation railway as claimed in claim 1, wherein the junction of the first portion and the second portion of the cross section of the T-shaped groove is in transition through a round angle.
7. The mounting structure of the tunnel lighting lamp for the high-speed magnetic levitation railway as claimed in claim 1, wherein the corners of the first portion of the cross section of the T-shaped groove are rounded off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010318667.1A CN111396791A (en) | 2020-04-21 | 2020-04-21 | Tunnel lighting lamp mounting structure suitable for high-speed magnetic suspension railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010318667.1A CN111396791A (en) | 2020-04-21 | 2020-04-21 | Tunnel lighting lamp mounting structure suitable for high-speed magnetic suspension railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111396791A true CN111396791A (en) | 2020-07-10 |
Family
ID=71435298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010318667.1A Pending CN111396791A (en) | 2020-04-21 | 2020-04-21 | Tunnel lighting lamp mounting structure suitable for high-speed magnetic suspension railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111396791A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113958230A (en) * | 2021-10-25 | 2022-01-21 | 中铁第四勘察设计院集团有限公司 | Assembly type installation structure and assembly type installation method of tunnel protection door |
-
2020
- 2020-04-21 CN CN202010318667.1A patent/CN111396791A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113958230A (en) * | 2021-10-25 | 2022-01-21 | 中铁第四勘察设计院集团有限公司 | Assembly type installation structure and assembly type installation method of tunnel protection door |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111396791A (en) | Tunnel lighting lamp mounting structure suitable for high-speed magnetic suspension railway | |
| CN211738800U (en) | Tunnel lighting lamp mounting structure suitable for high-speed magnetic suspension railway | |
| CN107419655A (en) | A kind of straddle-seat type single traffic rail beam girder falling retractor device | |
| CN114427176B (en) | Bed-jig | |
| CN107988856B (en) | Straddle type single-rail full-fixed continuous beam | |
| CN215104296U (en) | Special high strength sleeper of track high-speed railway | |
| CN211547101U (en) | Rail butt joint fixing seat | |
| RU225370U1 (en) | Pad with rail fastening pad for leveler | |
| CN211815215U (en) | Track butt joint fixing plate | |
| CN211689872U (en) | Spherical support for high-speed railway bridge | |
| CN208733405U (en) | A kind of rail defects and failures weld seam bracing means | |
| CN208472555U (en) | A kind of fixed resisting moment support for single track railway bridge | |
| CN110846946A (en) | Rail butt joint fixing seat | |
| CN208395648U (en) | A kind of one-way type resisting moment support for single track railway bridge | |
| RU215034U1 (en) | Rail anchor bolt | |
| CN111608030A (en) | Rail joint gap compensation structure and rail | |
| CN219690206U (en) | Ballastless track fastener | |
| CN109338827A (en) | A kind of rail fastener system of stable connection | |
| CN211256632U (en) | Sleeper plate type track structure with isolation cushion pad on steel truss girder | |
| CN204435130U (en) | Railway concrete sharp radius curve rail brace fastener | |
| CN110203248A (en) | A kind of track undulatory wear detection device mounting structure | |
| CN220099539U (en) | Spring strip fastener system for locomotive vehicle maintenance pit | |
| CN211848655U (en) | Anti-concrete sleeper curved steel rail outward-turning rail brace | |
| CN211227890U (en) | Detachable steel rail damping resonator | |
| CN209482060U (en) | A kind of rail fastener system of stable connection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |