CN103437283B - A kind of hanging basket truss of energy rapid-assembling - Google Patents
A kind of hanging basket truss of energy rapid-assembling Download PDFInfo
- Publication number
- CN103437283B CN103437283B CN201310366347.3A CN201310366347A CN103437283B CN 103437283 B CN103437283 B CN 103437283B CN 201310366347 A CN201310366347 A CN 201310366347A CN 103437283 B CN103437283 B CN 103437283B
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- Prior art keywords
- connecting rod
- axle bolt
- chord
- node axle
- hanging basket
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- 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.)
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- 238000004804 winding Methods 0.000 claims abstract description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 25
- 229910052782 aluminium Inorganic materials 0.000 claims description 25
- 239000004411 aluminium Substances 0.000 claims description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004088 simulation Methods 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
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/005—Girders or columns that are rollable, collapsible or otherwise adjustable in length or height
-
- 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
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0486—Truss like structures composed of separate truss elements
- E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A kind of hanging basket truss of energy rapid-assembling, comprise wind up plane connecting rod (9) and lower edge plane connecting rod (10), described arranged outside of winding up plane connecting rod (9) and lower edge plane connecting rod (10) junction, upper end has upper node axle bolt (2), the arranged outside of plane of winding up connecting rod (9) and lower edge plane connecting rod (10) junction, lower end has lower node axle bolt (3), adjacent two the upper diagonal web members (1) that pass through between node axle bolt (2) and lower node axle bolt (3) are hinged, the upper node axle bolt (2) being positioned at the same side is provided with upper chord (4), the upper correspondence of lower node axle bolt (3) is provided with lower chord (5), compact conformation of the present invention, have employed integrally stretching, local assembled structure, diagonal web member can realize stretching or drawing in, be convenient to rapid-assembling and dismounting, and it is little to take up room, be convenient to transport and reuse, bridge maintenance can be applied to widely.
Description
Technical field
The present invention relates to a kind of hanging basket truss, particularly relate to a kind of hanging basket truss of energy rapid-assembling, belong to bridge maintenance equipment technical field.
Background technology
Along with the damage of the propelling of China's a large amount of newly building bridge engineering and old bridge adds up, current bridge machinery and strengthening construction engineering quantity larger.Although the hanging basket product of more existing specialties is sold in the market, they have a common feature: span is little, are generally 5 meters ~ 12 meters, price is high, and cannot rapid-assembling, transport difficulty is large and expend height, cannot adapt to detection and the strengthening construction requirement of bridge construction normalization.Present stage a lot of bridge construction or detect in engineering, a large amount of self-control hanging basket platform used, hanging basket is assembled by node bolt by each single span, and its assembling difficulty is higher, and is not easy to transport.Hanging basket is assembled one by one by numerous rod member by a large amount of bolt, and it is large that bolt connects workload, and length consuming time, close across hanging basket for 28, needed for 5 people operation simultaneously, assembling duration is 5 hours, is unfavorable for improving engineering construction efficiency and saving engineering cost.
Such as Chinese patent mandate publication number is: CN102635069A, the day for announcing is: on August 15th, 2012, patent of invention disclosed a kind of combined bridge trussed construction assembling swivel mount, comprise support, prop up and put up up-narrow and down-wide trapezoidal rock-steady structure, the two ends of support are installed with two bearing supports, a frame-type platform is provided with in the centre of support, the both sides of frame-type platform are fixedly connected with two axles, and be connected with support by two bearing supports, eight workpiece are provided with in the inner side of frame-type platform, workpiece pressing plate is fixed on frame-type platform, frame-type platform can pivot certain angle on support.But this apparatus structure is complicated, can not rapid-assembling and dismounting, and can not launch by integrally stretching, assembly and disassembly difficulty is comparatively large, waste time and energy, and takes up room comparatively large, is not easy to transport, be unfavorable for the efficiency of construction improving bridge maintenance.
Summary of the invention
The hanging basket trussed construction that the object of the invention is for existing bridge maintenance is used is single, can not rapid-assembling and dismounting, assembly and disassembly difficulty is comparatively large, waste time and energy, and it is comparatively large to take up room, and is not easy to the defect of transporting and deficiency, a kind of compact conformation is now provided, can rapid-assembling and dismounting, and it is little to take up room, and is convenient to transport, easy to use, the hanging basket truss of reusable a kind of energy rapid-assembling.
For achieving the above object, technical solution of the present invention is: a kind of hanging basket truss of energy rapid-assembling, comprise wind up plane connecting rod and lower edge plane connecting rod, web member is connected between the end of plane of winding up connecting rod and lower edge plane connecting rod, described arranged outside of winding up plane connecting rod and junction, lower edge plane connecting rod upper end has upper node axle bolt, the arranged outside of plane of winding up connecting rod and junction, lower edge plane connecting rod lower end has lower node axle bolt, adjacent two are above hinged by diagonal web member between node axle bolt and lower node axle bolt, the upper node axle bolt being positioned at the same side is provided with upper chord, on lower node axle bolt, correspondence is provided with lower chord, the upper plane of upper chord is provided with aluminium springboard by bolt.
Equally spacedly on described upper chord be provided with guard bar support saddle, guard bar support saddle is vertically installed with guardrail, guardrail protection rope is cable wire or tightrope, and the two ends of cable wire or tightrope are separately fixed on upper chord between guardrail by many guardrails protection Suo Lian integrally.
The end of described upper chord and lower chord is respectively arranged with end plate, and end plate offers bolt hole, and upper chord is connected with lower node axle bolt with upper node axle bolt respectively by the bolt hole on end plate with lower chord.
The internal orifice dimension of described guard bar support saddle is greater than the external diameter of guardrail, and the endoporus of guard bar support saddle is inserted in the bottom of guardrail, and guard bar support saddle and guardrail is fixed by screw rod.
The diagonal of the rectangular frame that the described plane connecting rod that winds up, lower edge plane connecting rod and web member are formed is fixed with crossbar respectively, and crossbar adopts angle steel to make.
Described aluminium springboard employing grooved aluminium in length and breadth cross weld forms, and is also equipped with Figured aluminium plate at the bottom of the plate face and plate of aluminium springboard.
Described upper chord and lower chord are made by steel pipe, and guardrail is steel pipe or aluminum alloy material.
Described upper node axle bolt and lower node axle bolt are respectively arranged with spacing jump ring.
The invention has the beneficial effects as follows:
1, diagonal web member group of the present invention can turn an angle around node axle respectively and realize stretching or drawing in, upper node axle bolt is provided with upper chord, on lower node axle bolt, correspondence is provided with lower chord, and the rectangular frame be made up of the plane connecting rod that winds up, lower edge plane connecting rod and web member is installed between upper chord and lower chord, defines space truss structure that is quick for installation, reasonable stress.
2, the present invention is provided with aluminium springboard in the upper plane of upper chord; aluminium springboard can not only bear vertical load; but also certain flat in-plane stiffness should be had; certain horizontal support effect can be played; upper chord is provided with guardrail by guard bar support saddle; between guardrail by many guardrail protection Suo Lian integrally, improve security protection performance during construction.
3, compact conformation of the present invention, have employed integrally stretching, local assembled structure, and diagonal web member can realize stretching or drawing in, be convenient to rapid-assembling and dismounting, and it is little to take up room, is convenient to transport and reuses, can apply to bridge maintenance widely.
Accompanying drawing explanation
Fig. 1 is the structural representation that diagonal web member of the present invention does not stretch when launching.
Fig. 2 is the structural representation after diagonal web member of the present invention stretching launches.
Fig. 3 is that diagonal web member of the present invention stretches and launches and structural representation after installing chord member and lower chord.
Fig. 4 is the structural representation after the present invention installs guardrail and guardrail protection rope.
Fig. 5 is the connection diagram of upper chord of the present invention and the plane connecting rod that winds up.
Fig. 6 is the connection diagram of lower chord of the present invention and lower edge plane connecting rod.
Fig. 7 is the structural representation of rectangular frame of the present invention.
Fig. 8 is the structural representation of node axle bolt connecting portion in the present invention.
Fig. 9 is the side schematic view of node axle bolt connecting portion in the present invention.
Figure 10 is the structural representation after the present invention lays aluminium springboard.
Figure 11 is the end construction schematic diagram of upper chord of the present invention, lower chord.
Figure 12 is the side schematic view of Figure 11.
Figure 13 is the end construction schematic diagram of diagonal web member of the present invention.
Figure 14 is the side schematic view of Figure 13.
In figure: diagonal web member 1, upper node axle bolt 2, lower node axle bolt 3, upper chord 4, lower chord 5; guard bar support saddle 6, guardrail 7, guardrail protection rope 8, plane of winding up connecting rod 9, lower edge plane connecting rod 10; web member 11, crossbar 12, movable pulley 13, spacing jump ring 14, aluminium springboard 15.
Detailed description of the invention
Illustrate that the present invention is described in further detail with detailed description of the invention below in conjunction with accompanying drawing.
See Fig. 1 to Figure 14, the hanging basket truss of a kind of energy rapid-assembling of the present invention, comprise wind up plane connecting rod 9 and lower edge plane connecting rod 10, web member 11 is connected between the end of plane of winding up connecting rod 9 and lower edge plane connecting rod 10, described arranged outside of winding up plane connecting rod 9 and junction, lower edge plane connecting rod 10 upper end has upper node axle bolt 2, the arranged outside of plane of winding up connecting rod 9 and junction, lower edge plane connecting rod 10 lower end has lower node axle bolt 3, adjacent two are above hinged by diagonal web member 1 between node axle bolt 2 and lower node axle bolt 3, the upper node axle bolt 2 being positioned at the same side is provided with upper chord 4, on lower node axle bolt 3, correspondence is provided with lower chord 5, the upper plane of upper chord 4 is provided with aluminium springboard 15 by bolt.
Equally spacedly on described upper chord 4 be provided with guard bar support saddle 6; guard bar support saddle 6 is vertically installed with guardrail 7; be linked to be entirety by many guardrail protection ropes 8 between guardrail 7, guardrail protection rope 8 is cable wire or tightrope, and the two ends of cable wire or tightrope are separately fixed on upper chord 4.
The end of described upper chord 4 and lower chord 5 is respectively arranged with end plate, and end plate offers bolt hole, and upper chord 4 is connected with lower node axle bolt 3 with upper node axle bolt 2 respectively by the bolt hole on end plate with lower chord 5.
The internal orifice dimension of described guard bar support saddle 6 is greater than the external diameter of guardrail 7, and the endoporus of guard bar support saddle 6 is inserted in the bottom of guardrail 7, and guard bar support saddle 6 and guardrail 7 is fixed by screw rod.
The diagonal of the rectangular frame that the described plane connecting rod 9 that winds up, lower edge plane connecting rod 10 and web member 11 are formed is fixed with crossbar 12 respectively, and crossbar 12 adopts angle steel to make.
Described aluminium springboard 15 adopt grooved aluminium in length and breadth cross weld form, and be also equipped with Figured aluminium plate at the bottom of the plate face and plate of aluminium springboard 15.
Described upper chord 4 and lower chord 5 are made by steel pipe, and guardrail 7 is steel pipe or aluminum alloy material.
Described upper node axle bolt 2 and lower node axle bolt 3 are respectively arranged with spacing jump ring 14.
See Fig. 3, web member 11 is connected between the end of plane of winding up connecting rod 9 and lower edge plane connecting rod 10, the rectangular frame that plane of winding up connecting rod 9, lower edge plane connecting rod 10 and web member 11 are formed, and crossbar 12 is fixed with respectively on the diagonal of rectangular frame.Crossbar 12 adopts angle steel to make, and crossbar 12 is played a supporting role, and improves the stability of rectangular frame.The arranged outside of plane of winding up connecting rod 9 and junction, lower edge plane connecting rod 10 upper end has upper node axle bolt 2, the arranged outside of plane of winding up connecting rod 9 and junction, lower edge plane connecting rod 10 lower end has lower node axle bolt 3, and plane of winding up connecting rod 9 and lower edge plane connecting rod 10 mainly play connection function.Adjacent two are above hinged by diagonal web member 1 between node axle bolt 2 and lower node axle bolt 3, and the diagonal web member system formed can stretch or draw in, convenient and swift during expansion.
The upper node axle bolt 2 being positioned at the same side is provided with upper chord 4, and on lower node axle bolt 3, correspondence is provided with lower chord 5.The end of upper chord 4 and lower chord 5 is respectively arranged with end plate, and end plate offers bolt hole, and upper chord 4 is connected with lower node axle bolt 3 with upper node axle bolt 2 respectively by the bolt hole on end plate with lower chord 5.Upper chord 4 and lower chord 5 are made by steel pipe, have good intensity.
Equally spacedly on upper chord 4 be provided with guard bar support saddle 6, the internal orifice dimension of guard bar support saddle 6 is greater than the external diameter of guardrail 7, the endoporus of guard bar support saddle 6 is inserted in the bottom of guardrail 7, and guard bar support saddle 6 and guardrail 7 is fixed by screw rod or rivet, and guardrail 7 is perpendicular with upper chord 4.Be linked to be entirety by many guardrail protection ropes 8 between guardrail 7, guardrail protection rope 8 is cable wire or tightrope, and the two ends of cable wire or tightrope are separately fixed on upper chord 4.
The upper plane of upper chord 4 is provided with aluminium springboard by bolt, and aluminium springboard employing grooved aluminium in length and breadth cross weld forms, and is also equipped with Figured aluminium plate at the bottom of the plate face and plate of aluminium springboard.Aluminium springboard also should have certain flat in-plane stiffness except bearing vertical load, has the effect of horizontal support concurrently, adds the space stiffness of truss.
According to above mentality of designing, be calculated as foundation with the global optimization of FEM (finite element) model and node load-carrying properties, in conjunction with load test checking, finally to determine the basic parameter of hanging basket platform.The checking computations of space truss structure comprise strength of materials checking computations, the checking computations of rod member yield stress, ultimate bearing capacity of joints checking computations and overall structure Stability Checking.Due to the uncertainty of node connection performance and space torsional effect, the finite element simulation difficulty of stability is comparatively large, and therefore integrally-built stability is determined by load test.
Present invention employs integrally stretching, local assembled structure, diagonal web member can realize stretching or drawing in, is convenient to rapid-assembling and dismounting, greatly facilitates transport.Eliminate traditional hanging basket to need with a large amount of bolt by cumbersome process assembled one by one for numerous rod member, thus save manpower, be conducive to the efficiency of construction improving bridge maintenance.
Claims (8)
1. the hanging basket truss of an energy rapid-assembling, comprise wind up plane connecting rod (9) and lower edge plane connecting rod (10), web member (11) is connected between the end of plane of winding up connecting rod (9) and lower edge plane connecting rod (10), it is characterized in that: described in the wind up arranged outside of plane connecting rod (9) and lower edge plane connecting rod (10) junction, upper end have upper node axle bolt (2), the arranged outside of plane of winding up connecting rod (9) and lower edge plane connecting rod (10) junction, lower end has lower node axle bolt (3), adjacent two the upper diagonal web members (1) that pass through between node axle bolt (2) and lower node axle bolt (3) are hinged, the upper node axle bolt (2) being positioned at the same side is provided with upper chord (4), the upper correspondence of lower node axle bolt (3) is provided with lower chord (5), the upper plane of upper chord (4) is provided with aluminium springboard (15) by bolt.
2. the hanging basket truss of a kind of energy rapid-assembling according to claim 1; it is characterized in that: described upper chord (4) is above equally spaced is provided with guard bar support saddle (6); guard bar support saddle (6) is vertically installed with guardrail (7); entirety is linked to be by many guardrails protection rope (8) between guardrail (7); guardrail protection rope (8) is cable wire or tightrope, and the two ends of cable wire or tightrope are separately fixed on upper chord (4).
3. the hanging basket truss of a kind of energy rapid-assembling according to claim 1, it is characterized in that: the end of described upper chord (4) and lower chord (5) is respectively arranged with end plate, end plate offers bolt hole, and upper chord (4) is connected with lower node axle bolt (3) with upper node axle bolt (2) respectively by the bolt hole on end plate with lower chord (5).
4. the hanging basket truss of a kind of energy rapid-assembling according to claim 2, it is characterized in that: the internal orifice dimension of described guard bar support saddle (6) is greater than the external diameter of guardrail (7), the endoporus of guard bar support saddle (6) is inserted in the bottom of guardrail (7), and guard bar support saddle (6) and guardrail (7) is fixed by screw rod.
5. the hanging basket truss of a kind of energy rapid-assembling according to claim 4, it is characterized in that: described in wind up rectangular frame that plane connecting rod (9), lower edge plane connecting rod (10) and web member (11) form diagonal on be fixed with crossbar (12) respectively, crossbar (12) adopts angle steel to make.
6. the hanging basket truss of a kind of energy rapid-assembling according to claim 4, is characterized in that: described aluminium springboard (15) employing grooved aluminium in length and breadth cross weld forms, and is also equipped with Figured aluminium plate at the bottom of the plate face and plate of aluminium springboard (15).
7. the hanging basket truss of a kind of energy rapid-assembling according to claim 4, it is characterized in that: described upper chord (4) and lower chord (5) are made by steel pipe, guardrail (7) is steel pipe or aluminum alloy material.
8. the hanging basket truss of a kind of energy rapid-assembling according to claim 4, is characterized in that: described upper node axle bolt (2) and lower node axle bolt (3) are respectively arranged with spacing jump ring (14).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310366347.3A CN103437283B (en) | 2013-08-21 | 2013-08-21 | A kind of hanging basket truss of energy rapid-assembling |
| PCT/CN2014/084048 WO2015024464A1 (en) | 2013-08-21 | 2014-08-10 | Quickly assembled truss for hanging baskets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310366347.3A CN103437283B (en) | 2013-08-21 | 2013-08-21 | A kind of hanging basket truss of energy rapid-assembling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103437283A CN103437283A (en) | 2013-12-11 |
| CN103437283B true CN103437283B (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310366347.3A Active CN103437283B (en) | 2013-08-21 | 2013-08-21 | A kind of hanging basket truss of energy rapid-assembling |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103437283B (en) |
| WO (1) | WO2015024464A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437283B (en) * | 2013-08-21 | 2015-08-26 | 武汉武大巨成结构股份有限公司 | A kind of hanging basket truss of energy rapid-assembling |
| KR101567741B1 (en) * | 2015-02-16 | 2015-11-09 | 권용근 | Composite beam having truss reinforcement embedded in concrete |
| CN110879177B (en) * | 2018-09-06 | 2022-03-04 | 水利部交通运输部国家能源局南京水利科学研究院 | Test piece sealing and reinforcing device in concrete hydraulic fracture test |
| CN109469205B (en) * | 2018-11-30 | 2024-01-30 | 中国电建集团成都勘测设计研究院有限公司 | Expandable unit type double-layer reticulated shell structure |
| CN110552459B (en) * | 2019-09-26 | 2022-01-07 | 武汉卡特激光工程有限责任公司 | High-strength beam structure |
| CN113309006B (en) * | 2021-07-01 | 2023-04-07 | 中交二航局第四工程有限公司 | Five-row adjacent parallel suspension casting continuous beam dislocation synchronization equipment and construction method thereof |
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2013
- 2013-08-21 CN CN201310366347.3A patent/CN103437283B/en active Active
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2014
- 2014-08-10 WO PCT/CN2014/084048 patent/WO2015024464A1/en active Application Filing
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| JPH03178900A (en) * | 1989-12-08 | 1991-08-02 | Kawasaki Heavy Ind Ltd | Developing type structure |
| JP4387600B2 (en) * | 2001-01-22 | 2009-12-16 | 光洋機械産業株式会社 | Support work |
| CN201133114Y (en) * | 2007-10-17 | 2008-10-15 | 张松根 | Folding type truss |
| CN102635069A (en) * | 2012-03-20 | 2012-08-15 | 常州金马交通工程设备有限公司 | Assembly rotating frame for composite bridge truss structure |
| CN102912718A (en) * | 2012-09-24 | 2013-02-06 | 同济大学 | Crossing structure with arch-up amplitude capable of being automatically regulated |
| CN202881858U (en) * | 2012-11-07 | 2013-04-17 | 中铁六局集团有限公司 | Jig frame used for vertical assembly construction of truss arc bridge |
| CN203451999U (en) * | 2013-08-21 | 2014-02-26 | 武汉武大巨成加固实业有限公司 | Hanging basket stringer with quick assembly function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103437283A (en) | 2013-12-11 |
| WO2015024464A1 (en) | 2015-02-26 |
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