CN201865050U - Triangular tower type support system - Google Patents
Triangular tower type support system Download PDFInfo
- Publication number
- CN201865050U CN201865050U CN2010205721456U CN201020572145U CN201865050U CN 201865050 U CN201865050 U CN 201865050U CN 2010205721456 U CN2010205721456 U CN 2010205721456U CN 201020572145 U CN201020572145 U CN 201020572145U CN 201865050 U CN201865050 U CN 201865050U
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- template
- tower stand
- support
- vertical rod
- triangle tower
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Abstract
The utility model discloses a triangular tower type support system, comprising a template strutting piece, a supporting rod, a bearing beam, a jack, and a rectangular support array for bearing the jack, wherein each rectangular support consists of a plurality of support units which are connected sequentially in a bearing way; each support unit is formed by connecting four surface unit bodies in sequence; and each surface unit body consists of two right-angled triangles which are connected with each other, and the beveled edges of the two right-angled triangles form diagonals of the surface unit body. For the triangular tower type bracket system, the structural stability is good, the construction space is large, and the overall cost is low.
Description
Technical field
The utility model relates to a kind of mounting system, specifically relates to a kind of bridge cast-in-situ box girder construction full framing system.
Background technology
The general full framing that adopts of Bridges in Our Country cast-in-situ box girder construction is constructed, full framing generally adopts the bowl fastening type scaffold, this bowl fastening type scaffold is from external introduction, belong to a rod member formula connection system for guide rail, main member φ 48 * 3.5, Q235 welded steel pipe, belong to standardized member, wherein the vertical rod connected mode in the main member is the concentric socket joint, and cross bar then connects by bowl snapping head with vertical rod.Its shortcoming is that cross bar is the typing bar of several sizes, and the normal pitch setting that bowl button node is pressed 0.6m in the vertical rod is restricted the framework size.The Q235 material is adopted in vertical rod, has also reduced single limb vertical rod supporting capacity.Bridge construction, especially the characteristics of cast-in-situ box girder construction are that load is bigger, and the power perpendicular acts in the vertical rod, and for satisfying load requirement, vertical rod will be encrypted, and this has just strengthened construction cost.Do not have the mandatory requirement product to do galvanizing and handle, by the consequence that rapid corrosion brings, be not only and shorten product application life, it is unpredictable that bigger hidden danger is that proof load becomes.
Summary of the invention
Therefore, the utility model is in order to overcome existing bowl fastening type scaffold poor stability, and whole defect of high cost has proposed that a kind of structural stability is good, construction space is big, and the low triangle tower stand system of whole cost.
The utility model is by the following technical solutions:
A kind of triangle tower stand of this utility model system comprises:
Template support is used to support the box-beam plate;
Support bar, be supported on that described template supports below;
Bearing beam is provided with the base that matrix is installed as described support bar;
Jacking is supported on the downside of described bearing beam;
It also comprises the rectangular support frame array that is used to carry described jacking, and each rectangular support frame mainly is made up of a plurality of carrier units of accepting successively, and each carrier unit is mainly connected to form successively by four unilateral cell cubes, wherein the face cell cube comprise two interconnection and hypotenuse constitute and the cornerwise right angle trigonometry body of cell cube.
Be the main support part of support according to the main improvements of triangle tower stand system of technical solutions of the utility model, the rectangular support frame array of indication in this programme just, with the rectangular support frame is load cell, by trigone is that basic component makes up cuboid and props up and put up tower structure, unit Area of bearing weight bearing power is strong, and than the bigger full framing of existing density, the construction flexibility is better, bigger construction space is arranged, and the load adjustment is also more convenient; Simultaneously, this structural form no longer is subject to the structure of standard bowl button as existing bowl fastening type mounting system, can reduce the quantity of the vertical rod that is used for main carrying load, reduces steel using amount.Because adopting trigone is elementary cell, structural stability is good, and wherein said hypotenuse has constituted diagonal brace, has guaranteed the stability of system, and security of products is effectively controlled.
Above-mentioned triangle tower stand system when carrier unit during more than 4, is provided with two groups of major connectors between adjacent rectangular support frame.
Above-mentioned triangle tower stand system, every group of major connector comprises two major connectors, and two major connectors form X-shaped and connect support body.
Above-mentioned triangle tower stand system, described jacking comprises the U template and is supported on screw rod under this U template and the nut of attaching troops to a unit that wherein said U template is connected with the spherical hinge that is connected to of described screw rod.
Above-mentioned triangle tower stand system, described right angle trigonometry body comprises:
Vertical rod, upper and lower side is preset with connecting portion, and top, side is provided with the first side syndeton, and the bottom is provided with the second side syndeton;
Flat bar, an end are connected in the described first side syndeton, and the other end is preset with the first end syndeton; And
Brace, an end are connected in the described second side syndeton, and the other end is connected in the described first end syndeton.
Above-mentioned triangle tower stand system, described vertical rod is provided with and is used for the adapter sleeve that has pin-and-hole that socket joint connects, and be pin joint between the vertical rod of same right angle trigonometry body, flat bar and brace, and each right angle trigonometry body be reserved be used for the same carrier unit that is connected with it in the pin joint connecting portion that connects of parts.
Above-mentioned triangle tower stand system, the carrier unit of bottommost comprises that also Yi Sijiao is provided with the connecting frame corresponding to the quadrilateral structure of the branch sleeve of vertical rod in this carrier unit, wherein said branch sleeve is preset with pin-and-hole, is used for the pin joint of branch sleeve and vertical rod.
Above-mentioned triangle tower stand system, each rectangular support frame also comprises the support collet that is supported on lowest part carrier unit bottom side.
Above-mentioned triangle tower stand system, the corresponding a pair of bearing beam that is provided with along case beam transverse horizontal of each rectangular support frame, the bearing beam on the rectangular support frame of same line connects successively by tie-beam.
Above-mentioned triangle tower stand system, described base comprises and has being used to be installed on the seat portion on the corresponding bearing beam and being connected in the connecting portion that is preset with connecting hole of this upper end of a hole that wherein, connecting hole is used for the installation of described support bar.
Description of drawings
Below in conjunction with Figure of description in detail the technical solution of the utility model is described in detail, makes those skilled in the art more be expressly understood the utility model, wherein:
Fig. 1 is the cross-sectional structural representation according to a kind of triangle tower stand system of technical solutions of the utility model.
Fig. 2 is the vertical structure schematic diagram of triangle tower stand system.
Fig. 3 is the main TV structure schematic diagram of tripod.
Fig. 4 is the left TV structure schematic diagram corresponding to Fig. 3.
Fig. 5 is the structural representation of connector bar.
Fig. 6 is the main TV structure schematic diagram of U template.
Fig. 7 is the left TV structure schematic diagram corresponding to Fig. 6.
Fig. 8 is a kind of structural representation of bulb.
Fig. 9 is the structural representation according to a kind of adjustable ball pivot support jacking of technical solutions of the utility model.
Figure 10 is the main TV structure schematic diagram of connecting frame.
Figure 11 is the plan structure schematic diagram corresponding to Figure 10.
Figure 12 is the structural representation of template support.
Figure 13 is the structural representation of major connector.
Figure 14 is the main TV structure schematic diagram of base.
Figure 15 is the lateral view corresponding to Fig. 1.
Figure 16 is the structural representation of support bar.
Figure 17 is the structural representation of tie-beam.
Among the figure: 1, template support, 2, support bar, 3, the case beam, 4, tie-beam, 5, connecting rod, 6, connecting frame, 7, the support collet, 8, tripod, 9, connector bar, 10, jacking, 11, bearing beam, 12, base, 13, pin-and-hole, 14, flat bar, 15, connecting pin, 16, junction plate, 17, pin-and-hole, 18, junction plate, 19, brace, 20, pin-and-hole, 21, support 22, support 23, vertical rod, 24, adapter sleeve, 25, junction plate, 26, connecting pin, 27, junction plate, 28, junction plate, 29, U template body, 30, floor, 31, cavity, 32, guide strip, 33, groove, 34, bulb, 35, screw rod, 36, nut, 37, branch sleeve, 38, support body, 39, bracing piece, 40, pin-and-hole, 41, the body of rod, 42, connecting portion, 43, the body of rod, 44, centre bore, 45, groove, 46, connecting hole, 47, connecting portion, 48, seat portion, 49, the seat hole, 50, connecting portion, 51, screw rod, 52, the body of rod, 53, connecting hole, 54, the beam body.
The specific embodiment
Triangle tower stand system with reference to shown in Figure of description 1 and 2 comprises:
Jacking 10 is supported on the downside of described bearing beam;
It also comprises the rectangular support frame array that is used to carry described jacking, and each rectangular support frame mainly is made up of a plurality of carrier units of accepting successively, and each carrier unit is mainly connected to form successively by four unilateral cell cubes, wherein the face cell cube comprise two interconnection and hypotenuse constitute the cornerwise right angle trigonometry body of face cell cube.
All can adopt the appropriate section that has mounting system now for the part of bearing beam more than 11 shown in Figure of description 1 and 2 tops, corresponding existing part all can be applied in the utility model.Template support 1 as shown in Figure 1, its structure are the cross section outline of paranorm plate, and template is formed reliable support.And also can use existing supporting way for described support bar 2, fulcrum is set on bearing beam, divide the both sides that occupy the case beam, one group of every side, every group of fulcrum can be one, also can be a plurality of, what base 12 was as shown in Figure 1 constructed is exactly a fulcrum, then mainly consider the geometry of template between supporting about the number of support bar, be in the consideration of best or preferable support, the axis of support bar and the angle of template support adopt acute angle or the right angle greater than 45 degree as much as possible, are the situation of every group of three support bars among Fig. 1, and are articulated on the same point.With the jacking is example, support bar shown in Figure of description 16 then is to be beneficial to the adjustment of template support and the preferred implementation that adopts, it mainly is made of the body of rod 52 and the screw rod that has connecting portion 50 51 that is arranged at these body of rod two ends, to carry out the adjustment of rotating around fulcrum because of the support of considering support bar, therefore, said connecting portion preferably adopts hinged ways of connecting.The support bar of this structure can carry out the adjustment of length by the adjustment of screw rod, to adjust the bearing height of template support.
For the ease of adjusting the bearing height of mounting system, the composition of each rectangular support frame need take into full account the adjustable of height,, can adopt as Figure of description 1 and 2 kind of jacking 10 and collet 7 with adjustable function for this reason.In connection system for guide rail, in existing bowl fastening type connection system for guide rail, the scaffold jacking is made up of screw rod, nut and U template, and wherein the U template is welded on the screw rod top.This jacking screw diameter is thinner, and bearing capacity is lower, and key is that U template and screw rod are integrally welded, the vertical and horizontal gradient of bridge can only be adjusted by the gap adjustment of screw rod and vertical rod, not only adjusts inconvenience, adjusts precision and is difficult to guarantee, and so cause the jacking power transmission bad, easily go wrong.Certainly, existing jacking structure also can be applied in this programme.Preferably, with reference to explanation accompanying drawing 9, it shows a kind of adjustable ball pivot support jacking, comprises U template and the nut 36 that is supported on the screw rod 35 under this U template and attaches troops to a unit, and described U template is connected with the spherical hinge that is connected to of described screw rod.
The structure that adopts the U template to be connected with the screw rod spherical hinge can improve the degree of freedom that the U template is adjusted, thereby can well adapt to the variation of bridge vertical and horizontal gradient.Simultaneously, under this structural behavior, it is bigger that the diameter of screw rod can be established, and flexibility is good, and the power transmission effect especially satisfies under the situation that increases bearing capacity and reduced material usage.
Spigot-and-socket is adopted in the vertical rod of connection system for guide rail more, this programme also preferred it, the body of rod of screw rod can form fit structure with cover, increases and decreases the length of this cooperation by the adjustment of nut, and is simple in structure, easy to adjust.
Can adopt known any spherical hinge about said spherical hinge, preferable, with reference to Figure of description 6 and 8, described U template comprise U template body 29 and with the connecting portion of this U template body one, wherein this connecting portion is in the downside of described U template body, and be reserved with the cavity 31 of described spherical hinge, correspondingly, the upper end of described screw rod is provided with the bulb 34 of described spherical hinge.This preferable scheme is mainly considered the cost of ball pivot, under the condition of this extensive use on the engineering, satisfying under the condition of using, reducing cost becomes first requirement, especially herein the flexibility requirement to ball pivot is not high especially, and other expensive spherical hinges can not considered.
Preferably, with reference to Figure of description 6, make intensity in order to improve, described connecting portion is in the following middle side part of described U template body, and the both sides of this connecting portion are provided with gusset 30.
A kind of spherical hinge simple in structure is expressed in the state as accompanying drawing 9, described cavity comprises the spherical crown portion and the limiting section that is preset with guide strip 32 that is positioned at this spherical crown subordinate side as matching part, correspondingly, described bulb is the ball-crown body that both sides are provided with the groove 33 that is directed at described guide strip, and described groove passes through the limit body shutoff under the user mode of this jacking.After the groove of U template by the bulb both sides is installed on the bulb so, turn an angle, the described groove of shutoff just can be finished and install.Can adopt removable limit body about the shutoff mode, add that such as the limited block that embeds groove bolt carries out fastening mode.Also can adopt non-disconnectable connected mode, preferably, limit body is formed by welding procedure as described, and this programme has taken into full account the smaller and preferred non-disconnectable plugging structure of possibility that bulb lost efficacy in the application life of U type frame, especially welding, structural strength is big, satisfies the requirement of engineering construction.
Above-mentioned have adjust the structure jacking and collet can carry out the adjustment of rectangular support frame height, also have a class mode can carry out this adjustment, preferably, said a plurality of carrier unit partly adopts the standard carriage unit with calibrated altitude, part adopts adjusts sections, wherein the latter also can be high surely structure, but its whole height will be far below the standard carriage unit, can cooperate the height of the maximum adjusting range selection adjusting stage of jacking and collet, those skilled in the art should be very easy to select in view of the above.
Further, in order to improve the application life of product, the surface of this jacking and collet is provided with anticorrosive coat.
Preferably, described anticorrosive coat is a hot galvanized layer, and technology is simple, is specially adapted to the anticorrosion of engineering construction equipment.
Further, after selecting cheaply ball pivot, in order to satisfy the flexibility of installation flexibility and adjustment, described bulb also is provided with teflon coatings outside its anticorrosive coat, makes the rotation of U template more flexible.
A plurality of one group of carrier unit when carrier unit during more than 4, is provided with two groups of major connectors 5 between adjacent rectangular support frame.It should be noted that the horizontal row and the longitudinal row of the described array of adjacent main consideration here, closing on column direction do not comprise closing on of diagonal angle.In principle major connector can be set when being less than 4 carrier units, as shown in Figure 1, should be three carrier units, still be provided with major connector, the above-mentioned mode that major connector is set is a kind of preferable selection, under the bigger situation of load ratio, be less than four carrier units and still major connector can be set.
Preferably, every group of connecting rod comprises two major connectors, and two major connectors formation X-shaped connection support body, has preferable adjustable, and constitutes constitutionally stable three-legged structure with tripod.About major connector, with reference to Figure of description 13, belong to the rod member that a kind of body of rod 43 is provided with one group of hole, two ends also are provided with the connecting portion 42 that has connecting hole, and reliable in order to connect simultaneously, its middle part also is provided with centre bore 44, and the integral body of being convenient to two major connectors connects.
Can adopt whole precast construction about said right angle trigonometry body, as the integral solder structure, the structural strength height.Another kind of preferable selection then is to adopt the structure that can split, and is convenient to carry, and with reference to Figure of description 3, described right angle trigonometry body comprises:
A-frame has adopted the vertical rod that does not rely on the typing bar of independent design, the bowl that substitutes typing by the mode of reserving connecting portion links the mode of connecing, size no longer is restricted, the adjusting range of the enabling capabilities of single limb vertical rod no longer is restricted, especially load is under bigger situation, for avoiding using the situation of vertical rod to occur in a large number, can design the vertical rod of big capacity value, construction link can be saved a large amount of man-hours, under the situation that satisfies the supporting capacity requirement, easy to use, and construction cost is also lower.
Vertical rod in this programme, flat bar and brace constitute firm tripod, because main bearing load is vertical rod in the connection system for guide rail, therefore, rod member a little less than flat bar and brace can adopt support strength than vertical rod, and the bowl in the existing connection system for guide rail links the mode of connecing and has determined all kinds of rod members can only use the identical typing bar of diameter, and the resource dispensing is unreasonable.This programme has then reasonably solved this problem.
So for the connection between vertical rod because of not relating to otherwise problem, can adopt known concentric to hold poor connected mode, certainly, also can adopt the connected mode of the rod member up and down of other types, preferably, shown in Figure of description 4, one of described connecting portion is the adapter sleeve 24 based on the socket joint syndeton, is equipped with to this adapter sleeve and another connecting portion coupling pin-and-hole.The structure that adopts pin to connect not only satisfies the requirement of strength that connects, and very easy to use, and installation effectiveness is very high.Because of considering connection, at the default junction plate 25,27 in the side of tripod, connecting pin 26.
Described vertical rod is provided with and is used for the adapter sleeve that has pin-and-hole 24 that socket joint connects, and be pin joint between the vertical rod of same right angle trigonometry body, flat bar and brace, and each right angle trigonometry body be reserved be used for the same carrier unit that is connected with it in the pin joint connecting portion that connects of parts, to improve the convenience that connects.Certainly, then can consider bowl for the connection on the tripod horizontal direction links and connects other outer connected modes, as pin joint, bolt connection etc., only need reserving hole to get final product, this connection also is contained in the connection between the A-frame internals, also can adopt the pin joint and the bolt fastening structure of more convenient connection, and this structure only need reserve pin-and-hole or bolt hole gets final product, implementation is very simple, installs also that to link the mode of connecing than bowl simple.
In order to improve the structural strength of A-frame, shown in Figure of description 3, the side of described column also is preset with auxiliary syndeton uniformly, correspondingly, this A-frame comprises that also an end is connected in described auxiliary syndeton, and the other end is connected in and supports 21,22 on the described brace, this structure has also constituted ladder structure, than present connection system for guide rail, outside the structural strength that has satisfied special requirement, also has extra function.
In order to improve the application life of product, the surperficial plating of this A-frame has anticorrosive coat, as hot galvanized layer, and solving anticorrosion problem, the application life of not only having improved product, and basis of calculation load accurately.
The carrier unit of bottommost comprises that also Yi Sijiao is provided with the connecting frame 6 corresponding to the quadrilateral structure of the branch sleeve 37 of vertical rod in this carrier unit, and wherein said branch sleeve is preset with pin-and-hole, is used for the pin joint of branch sleeve and vertical rod.
As previously mentioned, consider adjustable, each rectangular support frame also comprises the support collet 7 that is supported on lowest part carrier unit bottom side.
Support load and the distribution of load and the reliability of installation for ease of calculating, the corresponding a pair of bearing beam 12 that is provided with along case beam 3 transverse horizontal of each rectangular support frame, simultaneously, bearing beam on the rectangular support frame of same line connects successively by tie-beam 4, and the adjustment by tie-beam is to adapt to the adjustment in different rectangular support frames gap.As shown in figure 17, the corrective action of tie-beam is embodied in one group of connecting hole 53 is set on the beam body 54 of tie-beam, adjusts needed gap by using different connecting holes.
The problem of base is mentioned in the front, herein, with reference to Figure of description 14 and 15, described base comprises and has being used to be installed on the seat portion 48 on the corresponding bearing beam and being connected in the connecting portion that is preset with connecting hole 46 47 of this upper end of a hole 49, wherein, connecting hole is used for the installation of described support bar, and connection can adopt bolt to connect.Simultaneously reliable for what guarantee to cooperate, described seat portion has groove 45 as shown in Figure 14, is used to be stuck in described bearing beam 11, guarantee to connect reliably.
Say that as preceding institute the part parts have adopted preservative treatment, each parts of native system all should be done preservative treatment, specifically be that all rod members all need to adopt galvanizing to handle, form hot galvanized layer, then mainly anticorrosion for the beam body by spraying paint, should spray one deck finish paint and one deck priming paint at least.Certainly, can also adopt other comprehensive anticorrosive treatment process.
Claims (10)
1. triangle tower stand system comprises:
Template support (1) is used to support the box-beam plate;
Support bar (2), be supported on that described template supports below;
Bearing beam (11) is provided with the base (12) that matrix is installed as described support bar;
Jacking (10) is supported on the downside of described bearing beam;
It is characterized in that it also comprises the rectangular support frame array that is used to carry described jacking, and each rectangular support frame mainly is made up of a plurality of carrier units of accepting successively, and each carrier unit is mainly connected to form successively by four unilateral cell cubes, wherein the face cell cube comprise two interconnection and hypotenuse constitute the cornerwise right angle trigonometry body of face cell cube.
2. triangle tower stand according to claim 1 system is characterized in that: when carrier unit during more than 4, be provided with two groups of major connectors (5) between adjacent rectangular support frame.
3. triangle tower stand according to claim 2 system, it is characterized in that: every group of major connector comprises two major connectors, and two major connectors form X-shaped and connect support body.
4. triangle tower stand according to claim 3 system is characterized in that: described jacking comprises U template and the nut (36) that is supported on the screw rod (35) under this U template and attaches troops to a unit, and wherein said U template is connected with the spherical hinge that is connected to of described screw rod.
5. according to the arbitrary described triangle tower stand of claim 1 to 4 system, it is characterized in that: described right angle trigonometry body comprises:
Vertical rod (23), upper and lower side is preset with connecting portion, and top, side is provided with the first side syndeton, and the bottom is provided with the second side syndeton;
Flat bar (14), an end are connected in the described first side syndeton, and the other end is preset with the first end syndeton; And
Brace (19), an end are connected in the described second side syndeton, and the other end is connected in the described first end syndeton.
6. triangle tower stand according to claim 5 system, it is characterized in that: described vertical rod is provided with and is used for the adapter sleeve that has pin-and-hole (24) that socket joint connects, and be pin joint between the vertical rod of same right angle trigonometry body, flat bar and brace, and each right angle trigonometry body be reserved be used for the same carrier unit that is connected with it in the pin joint connecting portion that connects of parts.
7. triangle tower stand according to claim 6 system, it is characterized in that: the carrier unit of bottommost comprises that also Yi Sijiao is provided with the connecting frame (6) corresponding to the quadrilateral structure of the branch sleeve (37) of vertical rod in this carrier unit, wherein said branch sleeve is preset with pin-and-hole, is used for the pin joint of branch sleeve and vertical rod.
8. triangle tower stand according to claim 7 system, it is characterized in that: each rectangular support frame also comprises the support collet (7) that is supported on lowest part carrier unit bottom side.
9. triangle tower stand according to claim 5 system is characterized in that: the corresponding a pair of bearing beam (12) that is provided with along case beam (3) transverse horizontal of each rectangular support frame, the bearing beam on the rectangular support frame of same line connects successively by tie-beam (4).
10. triangle tower stand according to claim 5 system, it is characterized in that: described base comprises and has being used to be installed on the seat portion (48) on the corresponding bearing beam and being connected in the connecting portion that is preset with connecting hole (46) (47) of this upper end of a hole (49), wherein, connecting hole is used for the installation of described support bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205721456U CN201865050U (en) | 2010-10-22 | 2010-10-22 | Triangular tower type support system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205721456U CN201865050U (en) | 2010-10-22 | 2010-10-22 | Triangular tower type support system |
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| CN201865050U true CN201865050U (en) | 2011-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205721456U Expired - Lifetime CN201865050U (en) | 2010-10-22 | 2010-10-22 | Triangular tower type support system |
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| CN (1) | CN201865050U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995561A (en) * | 2011-09-19 | 2013-03-27 | 曹新恒 | Universal bridge cast-in-place support |
| CN103437279A (en) * | 2013-08-29 | 2013-12-11 | 中交二公局第一工程有限公司 | Overhead cast-in-place box beam pressure-bearing strut and construction technology thereof |
| CN103498416A (en) * | 2013-09-26 | 2014-01-08 | 宋功业 | Installing support for long-span steel structure arch bridge arc arch |
-
2010
- 2010-10-22 CN CN2010205721456U patent/CN201865050U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995561A (en) * | 2011-09-19 | 2013-03-27 | 曹新恒 | Universal bridge cast-in-place support |
| CN103437279A (en) * | 2013-08-29 | 2013-12-11 | 中交二公局第一工程有限公司 | Overhead cast-in-place box beam pressure-bearing strut and construction technology thereof |
| CN103437279B (en) * | 2013-08-29 | 2015-10-21 | 中交二公局第一工程有限公司 | Overhead cast-in-place box compression struts and construction technology thereof |
| CN103498416A (en) * | 2013-09-26 | 2014-01-08 | 宋功业 | Installing support for long-span steel structure arch bridge arc arch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110615 Effective date of abandoning: 20111123 |