CN114395976B - Stepless-adjustment bailey piece support construction method - Google Patents
Stepless-adjustment bailey piece support construction method Download PDFInfo
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- CN114395976B CN114395976B CN202210238521.5A CN202210238521A CN114395976B CN 114395976 B CN114395976 B CN 114395976B CN 202210238521 A CN202210238521 A CN 202210238521A CN 114395976 B CN114395976 B CN 114395976B
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- rod
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- cross rod
- bailey
- long
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- 238000010276 construction Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 5
- 238000004873 anchoring Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/12—Portable or sectional bridges
- E01D15/133—Portable or sectional bridges built-up from readily separable standardised sections or elements, e.g. Bailey bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A support construction method of a stepless regulation bailey piece adopts a special stepless regulation bailey piece support frame, which comprises a left upright post, a right upright post, an upper cross rod and a lower cross rod, wherein the upper cross rod and the lower cross rod are of a length-adjustable structure, and the upper end and the lower end of the left upright post are respectively provided with a bolt hole A and a bolt hole B which are connected with the bailey piece through bolts; the upper end and the lower end of the right vertical rod are respectively provided with a bolt hole C and a bolt hole D, and are connected with the bailey piece through bolts. The utility model can realize stepless adjustment of the group width of the bailey pieces, greatly improves the applicability of the bailey pieces, simultaneously can avoid the influence and restriction on construction caused by single-group wide bailey pieces, has the characteristics of safe and reliable structure of the bailey piece support frame with stepless adjustment, reusability, simple working procedure, small construction difficulty and convenient and quick installation and disassembly construction in the construction process.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a bailey piece support construction method with stepless adjustment.
Background
In recent years, along with the continuous development of Chinese economy, the construction and development of highway infrastructure in China are rapidly in China, and the highway is one of important traffic modes for communicating with the intercity and plays an important role in the overall development of surrounding towns. With the continuous new construction of highways, more and more bridges need to be spanned in mountains and rivers, new bridges need to be built in river water, and temporary structures such as steel platforms need to be built in the early stage of bridge construction. Or a steel bridge built on temporary walkways and some other temporary structure. The bailey piece is used as the most widely assembled bearing member, has the advantages of simple structure, light weight, rapid assembly, economical use, strong adaptability, convenient transportation, good member stability, strong interchangeability and the like, and is widely applied to temporary structures in highway construction. The bailey piece support frame is a structure for transversely connecting the bailey pieces into a whole, so that the bending resistance and the whole stability of the bailey pieces can be greatly improved.
Currently, the bailey piece support frame is generally of a fixed type, and the support frame with a fixed length model produced by a manufacturer generally has specification models such as 450 support frames, 600 support frames, 900 support frames and the like. The fixed support frame has the following defects in the construction and installation process during the construction and use:
1. the fixed support frame is fixed according to the specification, so that the interval between the bailey pieces is fixed, and the interval between the bailey pieces cannot be flexibly adjusted.
2. Some temporary structures such as steel temporary bridges and steel platforms are mutually influenced due to individual construction constraints, the bailey pieces cannot be installed at fixed intervals, fine adjustment of the bailey piece intervals is possibly needed, but the support frame is not suitable after fine adjustment of the bailey piece intervals due to the fact that the support frame is of a fixed width, the support frame with proper width needs to be reprocessed and produced, and the construction efficiency is influenced due to the fact that the time is long, the cost is high.
The relevant prior literature on adjustable beret scaffolds is retrieved as follows:
1. an adjustable brace; cn20110253009. X; zhejiang Hua iron construction safety science and technology Co., ltd.; abstract: the utility model provides an adjustable vaulting pole of being connected between single piece bailey piece, has solved accurate, quick, the efficient connection problem between the single piece bailey, including the double-end nut, the screw thread at double-end nut both ends revolve to opposite, the middle part outward appearance of double-end nut is equipped with the spanner portion, single ear screw rod is connected to the one end of double-end nut, the double-ear screw rod is connected to the other end of double-end nut, the tip of single ear screw rod is equipped with wears the pinhole, the tip of double-ear screw rod is equipped with wears the pinhole. The device is safe, durable, good in interchangeability, strong in adaptability, flexible and quick in length expansion adjustment, and stable in matching and positioning after a plurality of devices are used between single-piece bailes.
2. A length-adjustable brace; CN201020299201.3; a length-adjustable stay bar comprises a stay bar section I and a stay bar section II, wherein flanges are respectively arranged and connected at the ends of the stay bar section I and the stay bar section II, a plurality of screw holes are arranged on the flanges, and the stay bar section I and the stay bar section II are connected into an integral stay bar through fasteners. A plurality of reinforcing rib plates are connected between the main body structure steel pipe of the first stay bar section and the flange; the main structure of the second stay bar section is a hanging point main board which is vertically connected with the flange; a plurality of semicircular steel pipes or reinforcing rib plates are connected between the hanging point main board and the flange. The utility model can cooperate with the crane to hoist mechanical equipment and structural monomers with different shapes and sizes without wearing the outer surface of the hoisted object; meanwhile, the hoisting operation of mechanical equipment and structural monomers with different shapes and sizes can be completed by adjusting the length of the stay bar and only needing to be provided with a few cranes; time and labor are saved, and the working efficiency is improved.
Although some supporting structures related to the beret sheet are also disclosed in the prior art, the supporting device in the prior art still has unsatisfactory places, for example, the supporting rods in document 1 adopt a torsion thread sleeve structure for supporting, if a plurality of supporting rods are arranged in parallel, the supporting rods must be simultaneously twisted for supporting, otherwise, the thread structure is easy to be blocked, or the supporting rods are not parallel for supporting to cause damage, so that the construction progress is affected.
Disclosure of Invention
The utility model aims to provide a bailey piece support frame with stepless adjustment, which has the function of adjustable width, realizes the wide adjustment of a bailey piece group, greatly improves the applicability of the bailey pieces, can avoid the influence and restriction on construction caused by single wide bailey piece, has the characteristics of safe and reliable structure, reusability, simple working procedure, small construction difficulty and convenient and quick installation and disassembly construction in the construction process.
In order to achieve the above object of the present utility model, the following technical scheme is adopted:
the device comprises a bailey piece support frame with stepless regulation, a left upright rod, a right upright rod, an upper cross rod and a lower cross rod, wherein the upper cross rod and the lower cross rod are of a length-adjustable structure, and the upper end and the lower end of the left upright rod are respectively provided with a bolt hole A and a bolt hole B which are connected with the bailey piece through bolts; the upper end and the lower end of the right vertical rod are respectively provided with a bolt hole C and a bolt hole D, and are connected with the bailey piece through bolts;
the two ends of the left upright rod are respectively provided with a vertical long hole A and a vertical long hole B, and the two ends of the right upright rod are respectively provided with a vertical long hole C and a vertical long hole D; and the middle of the inclined rod A and the middle of the inclined rod B are hinged to form a scissor brace, two ends of the inclined rod A are respectively and slidably hinged to the vertical long hole A and the vertical long hole D, and two ends of the inclined rod B are respectively and slidably hinged to the vertical long hole C and the vertical long hole B.
A left vertical pole supporting block is arranged at the vertical long hole B, a right vertical pole supporting block is arranged at the vertical long hole C, and the left vertical pole supporting block and the right vertical pole supporting block reserved holes are identical to the vertical long hole B and the vertical long hole B in shape; the thickness of the left vertical rod cushion block and the right vertical rod cushion block is the same as that of the diagonal rod A. The left upright rod cushion block and the right upright rod cushion block are used for compensating the problem that the hinging positions are not on the same plane due to overlapping of the inclined rods, so that the scissors support can be tightly connected with the left upright rod.
The upper cross rod and the lower cross rod consist of a tube barrel, a tubular screw rod, a butterfly nut, a through long screw rod and a through long screw rod nut; the butterfly nut is connected with the screw thread section of the tubular screw, the screw thread section of the tubular screw is inserted into the inner cavity of the pipe barrel, the through long rod nut is connected with the screw thread section of the through long rod, and the through long rod sequentially penetrates through the bolt hole E/bolt hole F, the inner cavity of the pipe barrel, the inner cavity of the tubular screw and the bolt hole G/bolt hole H.
The pipe barrel, the pipe screw rod and the butterfly nut form a trend of outwards propping up the left upright rod and the right upright rod; the through long screw and the through long screw nut form a trend of inwards riveting the left and right vertical rods, and the two opposite jacking forces and the riveting force are combined, so that the positions of the left and right vertical rods can be fastened and anchored.
The construction method of the stepless-adjusting bailey piece support frame comprises the following steps:
(1) Prefabricating each standard module according to the drawing size in a factory, and transporting to a construction site after finishing processing and checking and accepting;
(2) In a construction site, placing and aligning the left upright rod and the right upright rod on a flat ground, hinging the middle points of two diagonal rods of the scissor, and hinging the end points of the two diagonal rods with long holes of the left upright rod and the right upright rod respectively to ensure that a hinging point can freely slide on the long holes;
(3) And (3) mounting the upper cross bar and the lower cross bar: firstly screwing a butterfly nut onto a tubular screw rod, sleeving a tube on one threaded end of the tubular screw rod, propping one end of the tube against the butterfly nut, aligning a cross rod bolt reserved hole on a vertical rod, penetrating through the tube by a through long screw rod, and finally installing a through long rod nut, wherein the cross rod can be connected with the vertical rod, and the installation method of an upper cross rod and a lower cross rod is consistent;
(4) Beret support frame width adjustment: and determining the width of the support frame according to the field construction requirement, rotating the butterfly nut to enable the upper cross rod and the lower cross rod to reach the required width, then screwing and anchoring the long rod nuts on the upper cross rod and the lower cross rod, screwing the bolts on the scissor support, and finally installing the whole support frame on the bailey piece to finish the construction.
The utility model has outstanding substantive characteristics and remarkable progress:
1. the utility model changes the current situation that the traditional bailey piece support frame cannot be adjusted in fixation, is restricted and influenced in the construction process, can realize the adjustment of the width of a set of bailey pieces, and for some special occasions, forms the bailey piece support frame with special size, thereby greatly improving the applicability of the bailey pieces.
2. All the components of the construction equipment are connected into a whole by bolts, the construction is convenient, the installation and the dismantling are convenient, the construction efficiency is high, the materials can be recycled, and the cost of the construction equipment is not increased.
3. The structure of the novel hydraulic pressure type hydraulic pressure control valve is stable, the rigidity is good, the novel hydraulic pressure control valve is safe and reliable, deformation and loosening are not easy to occur, and the safety coefficient is high.
4. The special adjustable cross rod structure adopted in the utility model does not need synchronous adjustment, the through long rod nuts at the end parts are loosened, stress is not generated between the cross rod and the left and right vertical rods, the butterfly nuts at the middle part are adjusted to proper positions one by one according to the needs, and finally the through long rod nuts are locked and anchored one by one, so that the adjustment of the cross rod can be easily completed; the defects of dead locking, damage and the like caused by asynchronous and large-amplitude length adjustment of the single cross rod can be effectively avoided.
Description of the drawings:
FIG. 1 is a schematic view of the external appearance structure of a bailey piece support frame;
FIG. 2 is a schematic view of the appearance of the left upright;
FIG. 3 is a schematic view of the external structure of the right upright;
FIG. 4 is a schematic view of the external appearance structure of a scissors stay;
FIG. 5 is an exploded view of the upper and lower cross bars;
FIG. 6 is a schematic cross-sectional view of the upper and lower cross-bars (operational state);
fig. 7 is an overall schematic diagram of the mounting of the bailey piece support frame;
the serial numbers and part names in the figures are: 1. a left upright rod; 11. a vertical long hole A; 12. a vertical long hole B; 13. bolt hole A; 14. a bolt hole E; 15. bolt holes B; 16. bolt hole F; 17. a left upright rod cushion block; 2. a right upright rod; 21. a vertical long hole C; 22. a vertical long hole D; 23. bolt holes C; 24. a bolt hole G; 25. a bolt hole D; 26. bolt holes H; 27. a right upright rod cushion block; 3. a scissors support; 31. a diagonal rod A; 32. a diagonal rod B; 4. an upper cross bar; 41. a tube; 42. a tubular screw; 43. a butterfly nut; 44. a through long screw; 45. a through long rod nut; 5. and a lower cross bar.
Detailed Description
Example 1
The device comprises a bailey piece support frame with stepless regulation, wherein a left upright 1, a right upright 2, an upper cross rod 4 and a lower cross rod 5 form a frame structure, the upper cross rod 4 and the lower cross rod 5 are of a length-adjustable structure, and the upper end and the lower end of the left upright 1 are respectively provided with a bolt hole A13 and a bolt hole B15 which are connected with the bailey piece through bolts; the upper end and the lower end of the right upright rod 2 are respectively provided with a bolt hole C23 and a bolt hole D25, and are connected with the bailey pieces through bolts;
the two ends of the left upright 1 are respectively provided with a vertical long hole A11 and a vertical long hole B12, and the two ends of the right upright 2 are respectively provided with a vertical long hole C21 and a vertical long hole D22; the middle of the inclined rod A31 and the middle of the inclined rod B32 are hinged to form a scissor brace 3, two ends of the inclined rod A31 are respectively hinged to a vertical long hole A11 and a vertical long hole D22 in a sliding manner, and two ends of the inclined rod B are respectively hinged to a vertical long hole C21 and a vertical long hole B12 in a sliding manner;
the left vertical pole support cushion block 17 is arranged at the vertical long hole B12, the right vertical pole support cushion block 27 is arranged at the vertical long hole C21, and reserved holes of the left vertical pole support cushion block 17 and the right vertical pole support cushion block 27 are identical to the vertical long hole B12 and the vertical long hole B12 in shape; the thickness of the left pole pad 17 and the right pole pad 27 is the same as that of the diagonal pole a 31.
The upper cross rod 4 and the lower cross rod 5 consist of a tube 41, a tube-shaped screw rod 42, a butterfly nut 43, a through long screw rod 44 and a through long screw rod nut 45;
the butterfly nut 43 is connected with the screw thread section of the tubular screw rod 42, the screw thread section of the tubular screw rod 42 is inserted into the inner cavity of the tube 41, the through long rod nut 45 is connected with the screw thread section of the through long screw rod 44, and the through long screw rod 44 sequentially passes through the bolt hole E14/bolt hole F16, the inner cavity of the tube 41, the inner cavity of the tubular screw rod 42 and the bolt hole G24/bolt hole H26.
Claims (5)
1. A bailey piece support construction method with stepless regulation comprises the following steps:
(1) Prefabricating each standard module according to the drawing size in a factory, and transporting to a construction site after finishing processing and checking and accepting;
(2) In a construction site, placing and aligning the left upright rod and the right upright rod on a flat ground, hinging the middle points of two diagonal rods of the scissor, and hinging the end points of the two diagonal rods with long holes of the left upright rod and the right upright rod respectively to ensure that a hinging point can freely slide on the long holes;
(3) And (3) mounting the upper cross bar and the lower cross bar: firstly screwing a butterfly nut onto a tubular screw rod, sleeving a tube on one threaded end of the tubular screw rod, propping one end of the tube against the butterfly nut, aligning a cross rod bolt reserved hole on a vertical rod, penetrating through the tube by a through long screw rod, and finally installing a through long rod nut, wherein the cross rod can be connected with the vertical rod, and the installation method of an upper cross rod and a lower cross rod is consistent;
(4) Beret support frame width adjustment: and determining the width of the support frame according to the field construction requirement, rotating the butterfly nut to enable the upper cross rod and the lower cross rod to reach the required width, then screwing and anchoring the long rod nuts on the upper cross rod and the lower cross rod, screwing the bolts on the scissor support, and finally installing the whole support frame on the bailey piece to finish the construction.
2. The infinitely variable control bailey piece support construction method of claim 1, wherein: the left vertical rod (1), the right vertical rod (2), the upper cross rod (4) and the lower cross rod (5) form a frame structure, wherein the upper cross rod (4) and the lower cross rod (5) are of a length-adjustable structure, and the upper end and the lower end of the left vertical rod (1) are respectively provided with a bolt hole A (13) and a bolt hole B (15) which are connected with the bailey piece through bolts; the upper end and the lower end of the right vertical rod (2) are respectively provided with a bolt hole C (23) and a bolt hole D (25), and are connected with the bailey pieces through bolts.
3. The stepless-adjusting bailey piece support construction method according to claim 2, characterized by comprising the following steps: two ends of the left vertical rod (1) are respectively provided with a vertical long hole A (11) and a vertical long hole B (12), and two ends of the right vertical rod (2) are respectively provided with a vertical long hole C (21) and a vertical long hole D (22); and the middle of the inclined rod A (31) and the middle of the inclined rod B (32) are hinged to form a scissor brace (3), two ends of the inclined rod A (31) are respectively and slidably hinged to the vertical long hole A (11) and the vertical long hole D (22), and two ends of the inclined rod B are respectively and slidably hinged to the vertical long hole C (21) and the vertical long hole B (12).
4. A method of continuously adjustable bailey piece support construction as claimed in claim 3 wherein: a left vertical pole setting cushion block (17) is arranged at the vertical long hole B (12), a right vertical pole setting cushion block (27) is arranged at the vertical long hole C (21), and the left vertical pole setting cushion block (17) and the right vertical pole setting cushion block (27) are provided with reserved holes which are the same as the vertical long hole B (12) and the vertical long hole B (12); the thickness of the left vertical pole cushion block (17) and the right vertical pole cushion block (27) is the same as that of the diagonal pole A (31).
5. A method of continuously adjustable bailey piece support construction as claimed in claim 3 wherein: the upper cross rod (4) and the lower cross rod (5) consist of a tube (41), a tube-shaped screw (42), a butterfly nut (43), a through long screw (44) and a through long screw nut (45);
the butterfly nut (43) is connected with a threaded section of the tubular screw (42), the threaded section of the tubular screw (42) is inserted into the inner cavity of the pipe barrel (41), the through long rod nut (45) is connected with a threaded section of the through long screw (44), and the through long screw (44) sequentially penetrates through the bolt hole E (14)/the bolt hole F (16), the inner cavity of the pipe barrel (41), the inner cavity of the tubular screw (42) and the bolt hole G (24)/the bolt hole H (26).
Priority Applications (1)
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CN202210238521.5A CN114395976B (en) | 2022-03-11 | 2022-03-11 | Stepless-adjustment bailey piece support construction method |
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CN202210238521.5A CN114395976B (en) | 2022-03-11 | 2022-03-11 | Stepless-adjustment bailey piece support construction method |
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CN114395976B true CN114395976B (en) | 2023-12-01 |
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Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2011507A (en) * | 1977-11-22 | 1979-07-11 | Westland Aircraft Ltd | Load-Supporting Structure |
JP2011252297A (en) * | 2010-06-01 | 2011-12-15 | Coyo Create Co Ltd | Brace frame |
CN202187431U (en) * | 2011-07-19 | 2012-04-11 | 浙江华铁建筑安全科技股份有限公司 | Adjustable support rod |
CN202248510U (en) * | 2011-07-18 | 2012-05-30 | 浙江华铁建筑安全科技股份有限公司 | Transversely arranged brace rod type bailey |
CN203007814U (en) * | 2012-12-19 | 2013-06-19 | 中铁十局集团第三建设有限公司 | Connection piece used for building bailey beam truss |
CN205503048U (en) * | 2016-03-11 | 2016-08-24 | 湖南三一石油科技有限公司 | Automatic calandria system and pipe rack thereof |
CN208235308U (en) * | 2018-03-22 | 2018-12-14 | 江苏苏建路桥机械有限公司 | A kind of Bailey bridge connector |
CN111877138A (en) * | 2020-08-10 | 2020-11-03 | 漯河市公路事业发展中心 | Adjustable high-rigidity diaphragm plate device |
CN213571499U (en) * | 2020-07-05 | 2021-06-29 | 李怀亮 | Steel trestle |
CN113445436A (en) * | 2021-07-06 | 2021-09-28 | 中国建筑第二工程局有限公司 | Bridge pier temporary reinforcing structure under condition that does not stop |
CN214831825U (en) * | 2021-06-26 | 2021-11-23 | 江苏镇江路桥工程有限公司 | Combined Bailey frame group flower stand dismounting structure |
RU208873U1 (en) * | 2021-09-29 | 2022-01-19 | Общество С Ограниченной Ответственностью "Этис - Сзпк" | BEAM OF THE CABLE REST |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2016253555B1 (en) * | 2016-11-01 | 2017-02-09 | Tecnik Technologies Pty Limited | A modular access structure |
-
2022
- 2022-03-11 CN CN202210238521.5A patent/CN114395976B/en active Active
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2011507A (en) * | 1977-11-22 | 1979-07-11 | Westland Aircraft Ltd | Load-Supporting Structure |
JP2011252297A (en) * | 2010-06-01 | 2011-12-15 | Coyo Create Co Ltd | Brace frame |
CN202248510U (en) * | 2011-07-18 | 2012-05-30 | 浙江华铁建筑安全科技股份有限公司 | Transversely arranged brace rod type bailey |
CN202187431U (en) * | 2011-07-19 | 2012-04-11 | 浙江华铁建筑安全科技股份有限公司 | Adjustable support rod |
CN203007814U (en) * | 2012-12-19 | 2013-06-19 | 中铁十局集团第三建设有限公司 | Connection piece used for building bailey beam truss |
CN205503048U (en) * | 2016-03-11 | 2016-08-24 | 湖南三一石油科技有限公司 | Automatic calandria system and pipe rack thereof |
CN208235308U (en) * | 2018-03-22 | 2018-12-14 | 江苏苏建路桥机械有限公司 | A kind of Bailey bridge connector |
CN213571499U (en) * | 2020-07-05 | 2021-06-29 | 李怀亮 | Steel trestle |
CN111877138A (en) * | 2020-08-10 | 2020-11-03 | 漯河市公路事业发展中心 | Adjustable high-rigidity diaphragm plate device |
CN214831825U (en) * | 2021-06-26 | 2021-11-23 | 江苏镇江路桥工程有限公司 | Combined Bailey frame group flower stand dismounting structure |
CN113445436A (en) * | 2021-07-06 | 2021-09-28 | 中国建筑第二工程局有限公司 | Bridge pier temporary reinforcing structure under condition that does not stop |
RU208873U1 (en) * | 2021-09-29 | 2022-01-19 | Общество С Ограниченной Ответственностью "Этис - Сзпк" | BEAM OF THE CABLE REST |
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