CN205115999U - Telescoping device with girder construction - Google Patents
Telescoping device with girder construction Download PDFInfo
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- CN205115999U CN205115999U CN201520842496.7U CN201520842496U CN205115999U CN 205115999 U CN205115999 U CN 205115999U CN 201520842496 U CN201520842496 U CN 201520842496U CN 205115999 U CN205115999 U CN 205115999U
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- stiffening rib
- stretching device
- girder construction
- support panel
- structural joint
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Abstract
The utility model relates to a telescoping device for building provides a telescoping device with girder construction, including installing in the pars contractilis of structural joint one side, still including spaning structural joint and with the pars contractilis is connected strides the seam roof beam, it includes support panel, at least one first stiffening rib and at least one second stiffening rib, each to stride the seam roof beam first stiffening rib and each the second stiffening rib all supports support panel, just support panel and each first stiffening rib all spanes structural joint, each the second stiffening rib and wherein at least one first stiffening rib is connected. The utility model discloses an in the telescoping device, the part of spaning structural joint is the girder construction that support panel, first stiffening rib and second stiffening rib are constituteed, and when structural joint's span increased, the deck -molding increase of striding the seam roof beam was extremely limited, and the NULL of telescoping device is less relatively, and economic nature is very obvious.
Description
Technical field
The utility model relates to stretching device for building, particularly relates to a kind of stretching device with girder construction.
Background technology
Stretching device is the key position in bridge member, is realizing playing an important role in bridge function.Common bridge extension joint has board-like Telescopic rubber device, shaped steel modular expansion device, the board-like stretching device of comb etc.
Bridge is in construction with in operation process, and the effect such as can be subject to car load, bridge own material shrinkage and creep, foundation settlement, wind carry, causes bridge beam end to be out of shape.Bridge construction is sewn on 6 degree of freedom directions and all there is spatial movement (displacement in XYZ tri-directions and torsion) in various degree, thus causes the space operations such as extruding, stretching, torsion, dislocation, sedimentation to the stretching device being installed on bridge beam end.
Shaped steel modular expansion device in existing market, the longitudinal extension gap existing for it is large, flexible uneven, impact force is concentrated, it is comparatively outstanding to jump the phenomenons such as car is serious, concrete is frangible, extensible member spoilage is high, fabricating cost is large, the design preformed groove degree of depth is dark.Particularly to suspension bridge, cable stayed bridge, and tiltedly, curved bridge, because bridge construction unavoidably exists multidirectional displacement, therefore in use procedure, seriously expose the defect of inadaptable transverse direction and multi-directional deflection requirement.And requiring high to vertical deformation, vertical, horizontal conjugates large cable stayed bridge, suspension bridge etc., and modular expansion device for bridge is then difficult to the requirement meeting its multi-directional deflection.
And conventional expansion joint of comb plate, the requirement of bridge beam body vertical corner can not be met.When beam body stand under load sink beam-ends upwarp there is corner time, the comb plate of traditional comb plate class stretching device can tilt with beam-ends corner, the tooth bar of tilting and bring hidden danger to traffic safety, meanwhile, can produce comb fracture after vehicle spreading, and anchoring such as to pull at the phenomenon.And rubber tile bottom comb plate, comb joint vehicle by time deform, rubbish invades bottom comb plate, causes comb to upwarp, and anchor bolt is stressed bending, finally causes single unit system early ageing to destroy.Further, the anchor structure of the device form implanting erection bolt that adopts is installed more, uses the middle device anchor structure that is hit easily loosen and cause last anchor structure to pull.
Utility model content
The purpose of this utility model is to provide a kind of stretching device with girder construction, and being intended to thickness of slab for solving existing comb class stretching device needs to compare large adjustment according to structural joint across footpath.
The utility model is achieved in that
The utility model embodiment provides a kind of stretching device with girder construction, comprise the pars contractilis being installed on structural joint side, also comprise across described structural joint and be connected with described pars contractilis across stitching beam, described across seam beam comprise support panel, at least one first stiffening rib and at least one the second stiffening rib, each described first stiffening rib and each described second stiffening rib all support described support panel, and described support panel and each described first stiffening rib are all across described structural joint, the second stiffening rib described in each is connected with wherein the first stiffening rib described at least one.
Further, described also comprising across seam beam supports described support panel wherein one end and rotating two steel ball bearings and support the described support panel other end and at least one cambered surface rotating supports seat board, and two described steel ball bearings and each described cambered surface support the both sides that seat board lays respectively at described structural joint.
Particularly, wherein described in one, steel ball bearing is fixed bearing, and steel ball bearing described in another is bi-directional movable bearing.
Further, describedly to be connected by least one rigid hinge between pars contractilis described in seam beam.
Further, described pars contractilis is arranged at and described have described cambered surface across seam beam and support seat board side.
Further, also comprise pre-buried two block plates be embedded in concrete, described in two, steel ball bearing is all positioned at the side of wherein steel plate described in, and described cambered surface support seat board and described pars contractilis are positioned at the side of steel plate described in another.
Further, steel plate described in two all has at least one anchor bar extended straight down in the described concrete of correspondence.
Further, each described steel ball bearing is also all connected by fixed pull ring with between described support panel, and described fixed pull ring is anchored in across seam beam support panel by locking anchor bolt.
Particularly, described pars contractilis comprises at least one the comb plate assembly connected successively in a crosswise direction, and is connected across stitching beam with described near the described described comb plate assembly across seam beam.
Further, also comprise the waterproof roll across described structural joint, described waterproof roll is positioned at described across immediately below seam beam.
The utility model has following beneficial effect:
In stretching device of the present utility model, be provided with across seam beam in the side of pars contractilis, can across structural joint across seam beam, the first stiffening rib and the second stiffening rib is provided with in the below of support panel, namely stretching device is girder construction in the part across structural joint, to this when on the structural joint that stretching device is applied to different size, only need the height dimension of suitably adjustment the first stiffening rib and the second stiffening rib, the thickness of support panel is constant, it is compared with the stretching device of traditional comb plate structure, the span of structural joint is larger, then the material usage of the utility model stretching device is relatively fewer, economy clearly.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation with the stretching device of girder construction that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the structural representation across seam beam direction across bridge with the stretching device of girder construction of Fig. 1;
Fig. 3 is the top view with the stretching device of girder construction of Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
See Fig. 1-Fig. 3, the utility model embodiment provides a kind of stretching device with girder construction, comprise pars contractilis 1 and across seam beam 2, pars contractilis 1 is installed on the side of structural joint 3, then be connected with pars contractilis 1 across this structural joint 3 across seam beam 2, refinement is across the structure of seam beam 2, comprise support panel 21, at least one first stiffening rib 22 and at least one the second stiffening rib 23, support panel 21 is horizontally disposed with and across structural joint 3, its upper surface is that plane can travel for vehicle, each first stiffening rib 22 and this support panel 21 of each second stiffening rib 23 common support, wherein each first stiffening rib 22 is also across structural joint 3, each second stiffening rib 23 is then connected with wherein at least one first stiffening rib 22.In the utility model, stretching device changes along across the telescopic displacement on structural joint 3 direction, bear mainly through pars contractilis 1, and across seam beam 2 part, it is by support panel 21, first stiffening rib 22 and the second stiffening rib 23 form girder construction jointly, namely stretching device is girder construction across the part of structural joint 3, to this when on the structural joint 3 that stretching device is applied to different size, suitably adjust across the height dimension stitching beam 2 part first stiffening rib 22 and the second stiffening rib 23 and just can meet span requirement, for 1200mm seam, conventional comb seam plate thickness reaches 140mm, and this stretching device supports that the thickness of panel 111 is constant, only need suitably adjustment across the height stitching beam 2 part first stiffening rib 22 and the second stiffening rib 23.Itself and tradition are used alone compared with the stretching device of comb plate structure, and the span of structural joint 3 is larger, and the material usage of the stretching device that the utility model provides is relatively fewer, and economy clearly.
See Fig. 1 and Fig. 2, optimize above-described embodiment, two steel ball bearings 24 and at least one cambered surface support seat board 25 is also comprised across seam beam 2, two steel ball bearings 24 all support wherein one end of fixed support panel 21, each cambered surface supports the other end that seat board 25 then supports fixed support panel 21, two steel ball bearings 24 support with each cambered surface the both sides that seat board 25 lays respectively at structural joint 3, and two steel ball bearings 24 support with each cambered surface the turntable that seat board 25 is vertical direction and horizontal direction.In the present embodiment, two steel ball bearings 24 and each cambered surface support seat board 25 and all install below in the first stiffening rib 22 and the second stiffening rib 23, first stiffening rib 22 is the structure of falling T-shape, there is the base plate corresponding with support panel 21, for being fixedly connected with between two steel ball bearings 24 and the base plate of the first corresponding stiffening rib 22, namely supporting seat board 25 formation across seam beam 2 by two steel ball bearings 24 and each cambered surface supports fixing, and the turntable form that steel ball bearing 24 and cambered surface support seat board 25 makes across stitching beam 2 overall rotatable, can rotation on adaptation level direction and vertical direction within the scope of certain angle.Particularly, two steel ball bearings 24, one of them is fixed bearing, and another is then bi-directional movable bearing, adopts the steel ball bearing 24 of these two kinds of forms can make can have certain slide displacement across seam beam 2, improves the compliance across seam beam 2.
Further, be connected by least one rigid hinge 4 with between pars contractilis 1 across seam beam 2.In the present embodiment, two relatively independent parts can be constructively divided into across seam beam 2 with pars contractilis 1 by rigid hinge 4, the setting of rigid hinge 4 can increase substantially the compliance of stretching device to structural joint 3 both sides concrete vertical corner, the large bridge that this feature is higher to deck-molding, especially the structural joint 3 of combined bridge is particularly suitable.
Continue to optimize above-described embodiment, increase the reliability of construction and installation, stretching device also includes and is installed on two block plates 5 that mounting groove top reserved by structural joint 3 both sides concrete, two steel ball bearings 24 are positioned at the side of a wherein steel plate 5, cambered surface support seat board 25 and pars contractilis 1 are then all positioned at the side of another steel plate 5, and two steel plates 5 all have at least one anchor bar 51 vertically extended in corresponding concrete.In the present embodiment, can the form of entirety to weld or bolt is riveted on two steel plates 5 across seam beam 2 and pars contractilis 1, this set makes to form the higher annexation of reliability between stretching device entirety and concrete, when support panel 21 is subject to the wheel impacts masterpiece used time, impact load can be passed to two pre-embedded steel slabs 5 by stretching device, concrete is passed to again by each anchor bar 51 of two steel plates 5, force path is simple, clearly, arranging of pre-buried steel plate 5 can uniform diffusion impact load, greatly strengthen the impact resistance of stretching device, avoid the concrete destruction in local near stretching device.
See Fig. 1, further, stretching device has at least one the anchoring arm-tie 52 extended horizontally in corresponding concrete.Stretching device also comprises two support side plate 53 vertically arranged, each anchoring arm-tie 52 welds with corresponding support side plate 53, and wherein a support side plate 53 is fixedly connected with the lower seat board 241 of steel ball bearing 24, another support side plate 53 is then fixedly connected with the lower seat board 11 of pars contractilis 1, each anchoring arm-tie 52 has certain thickness, its entirety is all horizontally embedded in concrete, can weld with the reserved steel bar in concrete, it can improve the anchorage effect of stretching device in concrete further, strengthens the impact resistance of stretching device.The structure of refinement steel ball bearing 24, it is arranged with the lower seat board 241 of steel ball bearing 24, between the lower seat board 241 of steel ball bearing 24 and steel plate 5, there is larger contact surface, also be connected by fixed pull ring 242 with between support panel 21 at lower seat board 241, and fixed pull ring 242 one end is anchored on support panel 21 by Anti-off bolt 243, the other end welds or is bolted on the lower seat board 241 of steel ball bearing 24, thus ensures the anchoring of steel ball bearing 24.
Further, stretching device also includes the waterproof roll 6 across structural joint 3, and this waterproof roll 6 is positioned at across immediately below seam beam 2.In the present embodiment, structural joint 3 is installed across before seam beam 2 or pars contractilis 1, first lay waterproof roll 6 at the both sides concrete of structural joint 3, waterproof roll 6 is fixed on the concrete of structural joint 3 both sides by buckle or glue.
See Fig. 1 and Fig. 3, for pars contractilis 1, can adopt various structures form, such as pars contractilis 1 comprises at least one the comb plate assembly 12 connected successively in a crosswise direction, and be connected across stitching beam 2 with this near the comb plate assembly 12 across seam beam 2.In the present embodiment, pars contractilis 1 is the form of structure of comb plate assembly 12, stretching device is the form combined with comb plate assembly 12 across seam beam 2, when comb plate assembly 12 is multiple, two adjacent comb plate assemblies 12 adopt rigid body elastic component 13 to connect, rigid hinge 4 is adopted to be connected across between seam beam 2 and adjacent comb plate assembly 12, this stretching device is changed along across the telescopic displacement on structural joint 3 direction, shared is carried out mainly through each comb plate assembly 12, and rigid body elastic component 13 is as the connector between the comb plate assembly 12 with certain rigidity, under the prerequisite not affecting comb plate assembly 12 longitudinal extension change in displacement, the stability of comb plate assembly 12 can be ensured again, certain torsion moment of flexure can be born again simultaneously, increase stretching device structure to the adaptation of structural joint 3 torsional interaction.Certain pars contractilis 1 can also adopt other form of structure, and such as pars contractilis 1 is traditional modular expansion device structure.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. one kind has the stretching device of girder construction, comprise the pars contractilis being installed on structural joint side, it is characterized in that: also comprise across described structural joint and be connected with described pars contractilis across stitching beam, described across seam beam comprise support panel, at least one first stiffening rib and at least one the second stiffening rib, each described first stiffening rib and each described second stiffening rib all support described support panel, and described support panel and each described first stiffening rib are all across described structural joint, the second stiffening rib described in each is connected with wherein the first stiffening rib described at least one.
2. there is the stretching device of girder construction as claimed in claim 1, it is characterized in that: described also comprising across seam beam supports described support panel wherein one end and rotating two steel ball bearings and support the described support panel other end and at least one cambered surface rotating supports seat board, and two described steel ball bearings and each described cambered surface support the both sides that seat board lays respectively at described structural joint.
3. have the stretching device of girder construction as claimed in claim 2, it is characterized in that: wherein described in one, steel ball bearing is fixed bearing, steel ball bearing described in another is bi-directional movable bearing.
4. there is the stretching device of girder construction as claimed in claim 1, it is characterized in that: describedly to be connected by least one rigid hinge between pars contractilis described in seam beam.
5. there is the stretching device of girder construction as claimed in claim 2, it is characterized in that: across seam beam, there is described cambered surface described in described pars contractilis is arranged at and support seat board side.
6. there is the stretching device of girder construction as claimed in claim 2, it is characterized in that: also comprise pre-buried two block plates be embedded in concrete, described in two, steel ball bearing is all positioned at the side of wherein steel plate described in, and described cambered surface support seat board and described pars contractilis are positioned at the side of steel plate described in another.
7. there is the stretching device of girder construction as claimed in claim 6, it is characterized in that: steel plate described in two all has at least one anchor bar extended straight down in the described concrete of correspondence.
8. have the stretching device of girder construction as claimed in claim 2, it is characterized in that: each described steel ball bearing is also all connected by fixed pull ring with between described support panel, described fixed pull ring is anchored in across seam beam support panel by locking anchor bolt.
9. there is the stretching device of girder construction as claimed in claim 1, it is characterized in that: described pars contractilis comprises at least one the comb plate assembly connected successively in a crosswise direction, and be connected across stitching beam with described near the described described comb plate assembly across seam beam.
10. have the stretching device of girder construction as claimed in claim 1, it is characterized in that: also comprise the waterproof roll across described structural joint, described waterproof roll is positioned at described across immediately below seam beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520842496.7U CN205115999U (en) | 2015-10-28 | 2015-10-28 | Telescoping device with girder construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520842496.7U CN205115999U (en) | 2015-10-28 | 2015-10-28 | Telescoping device with girder construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205115999U true CN205115999U (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520842496.7U Active CN205115999U (en) | 2015-10-28 | 2015-10-28 | Telescoping device with girder construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205115999U (en) |
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2015
- 2015-10-28 CN CN201520842496.7U patent/CN205115999U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |