CN204738244U - Closed high -speed railway sound barrier unit - Google Patents
Closed high -speed railway sound barrier unit Download PDFInfo
- Publication number
- CN204738244U CN204738244U CN201520252625.7U CN201520252625U CN204738244U CN 204738244 U CN204738244 U CN 204738244U CN 201520252625 U CN201520252625 U CN 201520252625U CN 204738244 U CN204738244 U CN 204738244U
- Authority
- CN
- China
- Prior art keywords
- groove
- stopping means
- sheet material
- speed railway
- lower limit
- 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.)
- Active
Links
Landscapes
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The utility model relates to a closed high -speed railway sound barrier unit, closed high -speed railway sound barrier unit wholly are that both ends are sealed and hollow columnar structure, both ends are sealed and hollow columnar structure includes the panel casing that constitutes the columnar structure lateral wall and sets up at panel casing end plate both ends and that constitute the columnar structure both ends, panel casing and end plate are formed by the roll -in of monoblock aluminum alloy composite sheet, it forms the closed and hollow columnar structure in both ends to connect through hot melt, riveting or welding etc. After the roll -in of monoblock aluminum alloy composite sheet, inside stop device and the sound insulation backing member of being provided with of columnar structure, after inlaying on stop device, arranges in jointly on the inner wall of panel casing the sound insulation backing member, it perforates to have seted up the entrant sound on the panel casing. The utility model provides a closed high -speed railway sound barrier unit of easily processing, high efficiency and high stability.
Description
Technical field
The utility model belongs to railroad bridge technical field, relates to a kind of closed high speed railway sound barrier unit, particularly relate to a kind of for suppressing bullet train to run time noise generated sound barrier unit.
Background technology
Due to developing rapidly of railway, the noise pollution produced in train travelling process is serious all the more.In order to reduce the impact of railroad noise, generally sound barrier is set, with the route of transmission of truncation noise there being resident to occupy residence.Noise Barrier Works investment is suitable, and defening effect is good, has become the important measures controlling traffic noise pollution.
In prior art, railway sound barrier is combined in certain sequence by multiple sound barrier unit, and sound barrier unit housings inside is also provided with sound insulation backing member, thus can absorb acoustic energy further, fundamentally prevent the further propagation of noise, reach the object of noise reduction.
The Chinese patent that Authorization Notice No. is CN101349040B, authorized announcement date is on January 2nd, 2013 discloses a kind of sound barrier especially for high-speed railway, the sheet material housing that one has sound insulation backing member should be comprised especially for the sound barrier of high-speed railway, this sheet material housing cross-sectional is hollow, by two bending plate form, these plates particularly under prestrain in groove and key range shape mutually clamp in locking manner.The end plate of sheet material housing is connected with side plate single type ground, and end plate mutually overlaps in confined state, and sound insulation backing member is fixed on the centre position of sheet material housing by two clamping devices.This sound barrier unit structure especially forms the complex structure of two bending plates of sheet material housing, and the metal forming difficulty of processing of multidimensional is comparatively large, and cost of production is higher, and installs complicated, inefficiency.
Utility model content
The purpose of this utility model is to solve the problems of the technologies described above and then provide a kind of and is easy to process, the closed high speed railway sound barrier unit of high efficiency and high stability.
For achieving the above object, the utility model adopts following technical scheme:
A kind of closed high speed railway sound barrier unit, is characterized in that: described closed high speed railway sound barrier whole unit is closed at both ends and the column structure of hollow; That described closed at both ends and the column structure of hollow comprise the sheet material housing that forms column structure sidewall and are arranged on sheet material housing both ends and form the end plate at column structure two ends; Described sheet material housing and end plate are formed by the roll-in of monoblock aluminium alloy compound plate; After the roll-in of monoblock aluminium alloy compound plate by hot melt, rivet or be welded to connect and form closed at both ends and the column structure of hollow; Described column structure inside is provided with stopping means and sound insulation backing member; Described sound insulation backing member is embedded in after on stopping means and is also jointly placed on the inwall of sheet material housing; Described sheet material housing offers entrant sound perforation.
As preferably, the cross section of the sheet material housing that the utility model adopts comprises projection, left side riser, right side riser and groove; The both sides of described projection are connected with groove respectively by left side riser and right side riser; Described projection, left side riser, right side riser and groove form the sidewall of column structure jointly; Described right side riser is provided with entrant sound perforation; Described sound insulation backing member is arranged between projection and groove by stopping means.
As preferably, the projection that the utility model adopts comprises the protruding left plate, protruding right flat board, protruding middle plateform, protruding left swash plate and the protruding right swash plate that are connected successively;
Described groove comprises the groove left plate, the right flat board of groove, groove middle plateform, the left swash plate of groove and the right swash plate of groove that are connected successively;
The left swash plate of described projection is connected with groove left plate by protruding left plate and left side riser successively;
The right swash plate of described projection is connected with the right flat board of groove by protruding right flat board and right side riser successively.
As preferably, the projection that the utility model adopts and groove have identical width and height.
As preferably, the sheet material housing that the utility model adopts is thickness is 0.6mm ~ 3mm, and preferred 1.5mm, label range are 3003 ~ 5754, especially the aluminium alloy compound acoustical board of 5A03.
As preferably, the sound insulation backing member that the utility model adopts comprises fiber cement board, acoustic pad and supporting bolt and nut; Described fiber cement board is connected with acoustic pad by supporting bolt and nut; Described fiber cement board and acoustic pad are embedded in stopping means respectively.
As preferably, the sound insulation backing member that the utility model adopts also comprises the disk be arranged on supporting bolt and nut; Described supporting bolt and nut is connected with fiber cement board by disk and acoustic pad successively.
As preferably, the stopping means that the utility model adopts comprises the top stopping means being arranged on sheet material case top, described top stopping means comprises top stopping means crossbeam, is arranged on the top stopping means large U type draw-in groove on the stopping means crossbeam of top, the little U-shaped draw-in groove of top stopping means and is separately positioned on the top stopping means end plate at stopping means crossbeam two ends, top; Described top stopping means end plate is only against in sheet material inner walls respectively; Described fiber cement board is embedded in the little U-shaped draw-in groove of top stopping means; Described acoustic pad is embedded in the stopping means large U type draw-in groove of top.
As preferably, the stopping means that the utility model adopts also comprise be arranged on sheet material housing bottom and the lower limit device corresponding with stopping means position, top, described lower limit device comprises lower limit device crossbeam, is arranged on the lower limit device large U type draw-in groove on lower limit device crossbeam, the little U-shaped draw-in groove of lower limit device and is separately positioned on the lower limit device end plate at lower limit device crossbeam two ends; Described lower limit device end plate only leans against in sheet material inner walls respectively; The two ends of described fiber cement board are embedded in the little U-shaped draw-in groove of top stopping means and the little U-shaped draw-in groove of lower limit device respectively; The two ends of described acoustic pad are embedded in top stopping means large U type draw-in groove and lower limit device large U type draw-in groove respectively.
The beneficial effects of the utility model are:
The utility model provides a kind of closed high speed railway sound barrier unit, and this closed high speed railway sound barrier unit is made up of sheet material housing, sound insulation backing member, top stopping means, lower limit device and rivet.Sheet material housing is shaped to by multidimensional the cavity that cross section is hollow section by techniques such as roll-ins by aluminium alloy compound acoustical board on milling train, and passes through the rivet of a determining deviation.Top stopping means and lower limit device adopt common aluminium to make, and all comprise the U-shaped stopper slot of size, respectively with the cross section of acoustic pad and fiber cement board with wide, play fixing sound insulation backing member.Cross section is that hollow sheet material housing is easy to machine-shaping, compared with prior art, working (machining) efficiency significantly improves, and cost reduces, by rivet by the machine-shaping of hollow plate housing, sheet material housing resistance to overturning after shaping is better, can ensure the long-time stability of sound barrier panel under wind loads effect.
Accompanying drawing explanation
This manual comprises 8 width accompanying drawings, wherein:
Fig. 1 is the schematic cross-section of the sheet material housing that the utility model adopts;
Fig. 2 is the schematic cross-section of the lower limit device that the utility model adopts;
Fig. 3 is the schematic cross-section of the top stopping means that the utility model adopts;
Fig. 4 is the schematic cross-section of the sound insulation backing member that the utility model adopts;
Fig. 5 is that the facade of the end plate that the utility model adopts launches schematic diagram;
Fig. 6 is the right TV structure schematic diagram of the sheet material housing that the utility model adopts;
Fig. 7 is the left plate of the sheet material housing that the utility model adopts and launches end plate schematic diagram;
Fig. 8 is the structural representation of closed high speed railway sound barrier unit provided by the utility model;
Position shown in figure and corresponding mark:
1-sheet material housing; 12-is protruding; The protruding left plate of 121-; The protruding right flat board of 122-; The protruding middle plateform of 123-; The protruding left swash plate of 124-; The protruding right swash plate of 125-; 13-groove; 131-groove left plate; The right flat board of 132-groove; 133-groove middle plateform; The left swash plate of 134-groove; The right swash plate of 135-groove; 14-left plate; 15-right plate; 151-side plate prepared screw-bolt hole; 152-entrant sound is bored a hole; 16-rivet; 2-lower limit device; 21-lower limit device large U type draw-in groove; The little U-shaped draw-in groove of 22-lower limit device; 3-top stopping means; 31-top stopping means large U type draw-in groove; The little U-shaped draw-in groove of 32-top stopping means; 4-insulates against sound backing member; 41-acoustic pad; 42-fiber cement board; The supporting bolt and nut of 43-; 44-disk; 5-end plate; 51-end plate wing plate; 52-prepared screw-bolt hole.
Detailed description of the invention
In order to more clearly understand structure of the present utility model, below in conjunction with drawings and Examples, explanation is further explained to the utility model.
See Fig. 1 to Fig. 8, the utility model provides a kind of closed high speed railway sound barrier unit, it is characterized in that: closed high speed railway sound barrier whole unit is closed at both ends and the column structure of hollow; That closed at both ends and the column structure of hollow comprise the sheet material housing 1 that forms column structure sidewall and are arranged on sheet material housing 1 both ends and form the end plate 5 at column structure two ends; Sheet material housing 1 and end plate 5 are formed by the roll-in of monoblock aluminium alloy compound plate; Connect (the preferred rivet 16 of the utility model) by modes such as hot melt, riveted joint or welding after the roll-in of monoblock aluminium alloy compound plate and form closed at both ends and the column structure of hollow; Column structure inside is provided with stopping means and sound insulation backing member 4; Sound insulation backing member 4 is embedded in after on stopping means and is also jointly placed on the inwall of sheet material housing 1; Sheet material housing 1 offers entrant sound perforation 152.
See Fig. 1 and Fig. 5, the cross section of sheet material housing 1 comprises projection 12, left side riser 14, right side riser 15 and groove 13; The both sides of protruding 12 are connected with groove 13 respectively by left side riser 14 and right side riser 15; Projection 12, left side riser 14, right side riser 15 and groove 13 form the sidewall of column structure jointly; Right side riser 15 is provided with entrant sound perforation 152; Sound insulation backing member 4 is arranged between protruding 12 and groove 13 by stopping means.
Protruding 12 comprise the protruding left plate 121 be connected successively, protruding right dull and stereotyped 122, protruding middle plateform 123, protruding left swash plate 124 and protruding right swash plate 125; Groove 13 comprises the groove left plate 131, the groove that are connected successively right dull and stereotyped 132, groove middle plateform 133, the left swash plate of groove 134 and the right swash plate 135 of groove; Protruding left swash plate 124 is connected with groove left plate 131 by protruding left plate 121 and left side riser 14 successively; Protruding right swash plate 125 is connected with groove right dull and stereotyped 132 by protruding right dull and stereotyped 122 and right side riser 15 successively.Riveted by rivet 16 in groove right swash plate 135 position and form hollow section sheet material housing 1; The tip position of left side riser 14 and right side riser 15 reserves the side plate prepared screw-bolt hole 151 of some in interval respectively, and right side riser 15 reserves entrant sound perforation 152, and left side riser 14 is not bored a hole and reserved vertical stiffening rib.
Projection 12 and groove 13 have identical width and height.
See Fig. 1, the aluminium alloy compound acoustical board that preferred sheet material housing is thickness is 1.5mm, label is not less than 5A03.
See Fig. 4, sound insulation backing member 4 comprises fiber cement board 42, acoustic pad 41 and supporting bolt and nut 43; Fiber cement board 42 is connected with acoustic pad 41 by supporting bolt and nut 43; Fiber cement board 42 and acoustic pad 41 are embedded in stopping means respectively.
Sound insulation backing member 4 also comprises the disk 44 be arranged on supporting bolt and nut 43; Supporting bolt and nut 43 is connected with fiber cement board 42 by disk 44 and acoustic pad 41 successively.
See Fig. 3, stopping means comprises the top stopping means 3 being arranged on sheet material case top, top stopping means 3 comprises top stopping means crossbeam, is arranged on the top stopping means large U type draw-in groove 31 on the stopping means crossbeam of top, the little U-shaped draw-in groove 32 of top stopping means and is separately positioned on the top stopping means end plate at stopping means crossbeam two ends, top; Top stopping means end plate is only against on sheet material housing 1 inwall respectively; Fiber cement board 42 is embedded in the little U-shaped draw-in groove 32 of top stopping means; Acoustic pad 41 is embedded in top stopping means large U type draw-in groove 31.
See Fig. 2, stopping means also comprise be arranged on sheet material housing bottom and the lower limit device 2 corresponding with stopping means position, top, lower limit device 2 comprises lower limit device crossbeam, is arranged on the lower limit device large U type draw-in groove 21 on lower limit device crossbeam, the little U-shaped draw-in groove 22 of lower limit device and is separately positioned on the lower limit device end plate at lower limit device crossbeam two ends; Lower limit device end plate only leans against respectively on sheet material housing 1 inwall; The two ends of fiber cement board 42 are embedded in the little U-shaped draw-in groove 32 of top stopping means and the little U-shaped draw-in groove 22 of lower limit device respectively; The two ends of acoustic pad 41 are embedded in top stopping means large U type draw-in groove 31 and lower limit device large U type draw-in groove 21 respectively.
Lower limit device 2 and top stopping means 3 all adopt certain thickness common aluminium to make, and as shown in FIG. 2 and 3, arrange along sheet material housing 1 longitudinal separation certain distance, its width is identical with sheet material housing 1 inner width for its shape of cross section.
See Fig. 5 and Fig. 7, sheet material housing 1 and end plate 5 are formed by the roll-in of monoblock aluminium alloy compound plate; In Figure 5, its material of end plate 5 is identical with sheet material housing 1 with thickness, the two is same aluminium alloy compound plate, end plate wing plate 51 is arranged at intervals with some prepared screw-bolt holes 52, the reserved side plate prepared screw-bolt hole 151 of this hole site and left plate 14 and right plate 15 tip position interval matches, and guarantees to be riveted with the right side riser 15 of sheet material housing 1 by the end plate wing plate 51 of rivet by end plate 5.
Construction process of the present utility model for: the aluminium alloy plate being first 1.5mm by preferred thickness is shaped to structure shown in Fig. 7 by techniques such as roll-ins by multidimensional on milling train, and the mode (preferred rivet 16) simultaneously connected by hot melt, riveted joint or welding etc. is for hollow and the column structure of closed at both ends; Before end plate 5 is connected with sheet material housing 1 (the monolateral connection before end plate 5 and sheet material housing) top of the fiber cement board 42 of the backing member 4 that insulates against sound and acoustic pad 41 is clamped with the little U-shaped draw-in groove 32 of top stopping means 3 and large U type draw-in groove 31 respectively, little U-shaped draw-in groove 22 and large U type draw-in groove 21 clamp with lower limit device 2 respectively in bottom; Top stopping means 3 and lower limit device 2 assemble along the longitudinal direction of sheet material housing 1; Single tube rubber pad is finally coordinated by two pieces of identical end plates 5 to be riveted with the left side riser 14 of sheet material housing 1 and right side riser 15 respectively by rivet.
Preferred thickness is by milling train the aluminium alloy plate of 1.5mm is shaped to hollow plate housing as shown in Figure 1 by technique multidimensional such as roll-ins, and riveted in the right swash plate position of groove by the rivet of a determining deviation, this sheet material case width is 90 ~ 200mm, preferable width is 140mm, length is 800mm ~ 4000mm, preferred length is 1960mm, be highly 350 ~ 500mm, preferred heights is 400mm and 460mm, the width of its protrusions left plate and right flat board is 10mm ~ 30mm, preferable width is 20mm, protruding left plate center line becomes 30 ° ~ 90 ° with the left swash plate center line of projection, be preferably 60 °, protruding left swash plate center line and protruding middle plateform center line in 90 ° ~ 150 °, be preferably 120 °, groove and protruding homotype.Lower limit device as shown in Figure 2 and top stopping means as shown in Figure 3 respectively with the inner width of sheet material housing with wide, wherein the little U-shaped draw-in groove width of stopping means can just clamp the cement fibrolite plate of certain thickness 5 ~ 10mm up and down, preferred Cement fibre plate thickness is 5mm, the large U type draw-in groove width of upper and lower stopping means can just clamp the acoustic pad as shown in Figure 4 of certain thickness 40 ~ 80mm, and preferred acoustic pad width is 50mm.After sound insulation backing member installs, the rivet and the right plate that the wing plate of two end plates cooperation single tube rubber pad are passed through a determining deviation are as shown in Figure 5 riveted again, and namely form a kind of closed high speed railway sound barrier unit of the utility model.
Above-mentioned embodiment is a preferred embodiment of the present utility model; be not for limiting enforcement of the present utility model and interest field; all equivalences made according to the utility model patent protection range content change and approximate replacement, all should drop in protection domain of the present utility model.
Claims (10)
1. a closed high speed railway sound barrier unit, is characterized in that: described closed high speed railway sound barrier whole unit is closed at both ends and the column structure of hollow; That described closed at both ends and the column structure of hollow comprise the sheet material housing (1) that forms column structure sidewall and are arranged on sheet material housing (1) both ends and form the end plate (5) at column structure two ends; Described sheet material housing (1) and end plate (5) are formed by the roll-in of monoblock aluminium alloy compound plate; After the roll-in of monoblock aluminium alloy compound plate by hot melt, rivet or be welded to connect and form closed at both ends and the column structure of hollow; Described column structure inside is provided with stopping means and sound insulation backing member (4); Described sound insulation backing member (4) is embedded in after on stopping means and is also jointly placed on the inwall of sheet material housing (1); Described sheet material housing (1) offers entrant sound perforation (152).
2. closed high speed railway sound barrier unit according to claim 1, is characterized in that: the cross section of described sheet material housing (1) comprises projection (12), left side riser (14), right side riser (15) and groove (13); The both sides of described projection (12) are connected with groove (13) respectively by left side riser (14) and right side riser (15); Described projection (12), left side riser (14), right side riser (15) and groove (13) form the sidewall of column structure jointly; Described right side riser (15) is provided with entrant sound perforation (152); Described sound insulation backing member (4) is arranged between projection (12) and groove (13) by stopping means.
3. closed high speed railway sound barrier unit according to claim 2, is characterized in that: described projection (12) comprises the protruding left plate (121), protruding right flat board (122), protruding middle plateform (123), protruding left swash plate (124) and the protruding right swash plate (125) that are connected successively; Described groove (13) comprises the groove left plate (131), the right flat board of groove (132), groove middle plateform (133), the left swash plate of groove (134) and the right swash plate of groove (135) that are connected successively; The left swash plate of described projection (124) is connected with groove left plate (131) by protruding left plate (121) and left side riser (14) successively; The right swash plate of described projection (125) is connected with the right flat board of groove (132) by protruding right flat board (122) and right side riser (15) successively.
4. closed high speed railway sound barrier unit according to claim 3, is characterized in that: described projection (12) and groove (13) have identical width and height.
5. closed high speed railway sound barrier unit according to claim 4, is characterized in that: the aluminium alloy compound acoustical board that described sheet material housing (1) is thickness is 0.6mm ~ 3mm, label range is 3003 ~ 5754.
6. closed high speed railway sound barrier unit according to claim 5, is characterized in that: the aluminium alloy compound acoustical board that described sheet material housing (1) is thickness is 1.5mm, label is 5A03.
7. the closed high speed railway sound barrier unit according to claim 1 or 2 or 3 or 4 or 5 or 6, is characterized in that: described sound insulation backing member (4) comprises fiber cement board (42), acoustic pad (41) and supporting bolt and nut (43); Described fiber cement board (42) is connected with acoustic pad (41) by supporting bolt and nut (43); Described fiber cement board (42) and acoustic pad (41) are embedded in stopping means respectively.
8. closed high speed railway sound barrier unit according to claim 7, is characterized in that: described sound insulation backing member (4) also comprises the disk (44) be arranged on supporting bolt and nut (43); Described supporting bolt and nut (43) is connected with fiber cement board (42) by disk (44) and acoustic pad (41) successively.
9. closed high speed railway sound barrier unit according to claim 8, it is characterized in that: described stopping means comprises the top stopping means (3) being arranged on sheet material case top, described top stopping means (3) comprises top stopping means crossbeam, is arranged on top stopping means large U type draw-in groove (31) on the stopping means crossbeam of top, the little U-shaped draw-in groove (32) of top stopping means and is separately positioned on the top stopping means end plate at stopping means crossbeam two ends, top; Described top stopping means end plate is only against on sheet material housing (1) inwall respectively; Described fiber cement board (42) is embedded in the little U-shaped draw-in groove (32) of top stopping means; Described acoustic pad (41) is embedded in top stopping means large U type draw-in groove (31).
10. closed high speed railway sound barrier unit according to claim 9, it is characterized in that: described stopping means also comprise be arranged on sheet material housing bottom and the lower limit device (2) corresponding with stopping means position, top, described lower limit device (2) comprises lower limit device crossbeam, is arranged on lower limit device large U type draw-in groove (21) on lower limit device crossbeam, the little U-shaped draw-in groove (22) of lower limit device and is separately positioned on the lower limit device end plate at lower limit device crossbeam two ends; Described lower limit device end plate only leans against on sheet material housing (1) inwall respectively; The two ends of described fiber cement board (42) are embedded in the little U-shaped draw-in groove of top stopping means (32) and the little U-shaped draw-in groove (22) of lower limit device respectively; The two ends of described acoustic pad (41) are embedded in top stopping means large U type draw-in groove (31) and lower limit device large U type draw-in groove (21) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520252625.7U CN204738244U (en) | 2015-04-23 | 2015-04-23 | Closed high -speed railway sound barrier unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520252625.7U CN204738244U (en) | 2015-04-23 | 2015-04-23 | Closed high -speed railway sound barrier unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204738244U true CN204738244U (en) | 2015-11-04 |
Family
ID=54419988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520252625.7U Active CN204738244U (en) | 2015-04-23 | 2015-04-23 | Closed high -speed railway sound barrier unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204738244U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106049303A (en) * | 2016-07-21 | 2016-10-26 | 山西军昊实业有限公司 | Integrated cylindrical seamless sound barrier |
| CN108221726A (en) * | 2018-02-27 | 2018-06-29 | 南京工业职业技术学院 | A kind of road sound-proofing board |
-
2015
- 2015-04-23 CN CN201520252625.7U patent/CN204738244U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106049303A (en) * | 2016-07-21 | 2016-10-26 | 山西军昊实业有限公司 | Integrated cylindrical seamless sound barrier |
| CN108221726A (en) * | 2018-02-27 | 2018-06-29 | 南京工业职业技术学院 | A kind of road sound-proofing board |
| CN108221726B (en) * | 2018-02-27 | 2023-11-28 | 南京工业职业技术学院 | Highway acoustic celotex board |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205276590U (en) | Insulating glass curtain wall is concealed to horizontal bright vertical stroke of thin steel | |
| CN103122665A (en) | Combined-type steel-box-shaped steel plate shear wall | |
| CN102359180A (en) | Truss combined beam and upper and layer connected light steel structure and construction method thereof | |
| CN201484422U (en) | Railway vehicle airtight sound insulation end wall | |
| CN204738244U (en) | Closed high -speed railway sound barrier unit | |
| CN202627475U (en) | Scaffold wall connecting member | |
| CN104608829B (en) | Aluminum alloy passenger car oil tank district floor skeleton connection structure | |
| CN204753415U (en) | High stability high -speed railway sound barrier unit | |
| CN205100122U (en) | Corrosion -resistant non - metallic sound protective screen of high strength | |
| CN204551300U (en) | A kind of high speed railway sound barrier unit | |
| CN102425111B (en) | Abnormal pier cap template with large section | |
| CN204850285U (en) | High -rise building glass guardrail system | |
| CN201762974U (en) | System for simultaneous construction of upper horizontal structure and lower horizontal structure in core tube | |
| CN204780653U (en) | High stability railway sound barrier device | |
| CN202595958U (en) | Rotary joint for non-welding stand column of frame curtain wall | |
| CN204551301U (en) | High speed railway sound barrier unit | |
| CN109610991B (en) | High-strength heat-insulating aluminum alloy section for vehicle window | |
| CN203603457U (en) | Deformation joint steel formwork and deformation joint formwork assembly | |
| CN203347100U (en) | Composite wallboard, hanging connection unit between composite wallboard and cross beam and connecting structure between composite wallboard and cross beam | |
| CN210597074U (en) | Combined ultra-high strength concrete-micropore ceramic composite sound barrier | |
| CN203766864U (en) | Passenger train steering column fixed bolster | |
| CN211622146U (en) | Transverse long-span unit type curtain wall system | |
| CN204199194U (en) | For the nonmetal unit board of sound barrier | |
| CN202610698U (en) | Medium and small span modularization aluminum pedestrian bridge within single span of 30 m | |
| CN201460593U (en) | Non-lining steel door and window mullion profile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |