CN103924512A - Expansion joint with convertible cavity - Google Patents
Expansion joint with convertible cavity Download PDFInfo
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- CN103924512A CN103924512A CN201410161411.9A CN201410161411A CN103924512A CN 103924512 A CN103924512 A CN 103924512A CN 201410161411 A CN201410161411 A CN 201410161411A CN 103924512 A CN103924512 A CN 103924512A
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- die cavity
- convertible
- water proof
- proof rubber
- shrinkage joint
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Abstract
The invention discloses an expansion joint with a convertible cavity. The expansion joint comprises sectional materials, first cavities, a waterproof rubber strip and transition components, wherein the sectional materials are arranged on the left side and the right side respectively in parallel, the first cavities are oppositely arranged on the inner sides of the sectional materials and are provided with upward openings, the two sides of the waterproof rubber strip are provided with embedded portions, and the transition components connect the sectional materials with the waterproof rubber strip. Each transition component comprises an embedded end and a second cavity, wherein the embedded end is matched with the corresponding first cavity in shape in an embedded mode, the opening of the second cavity is downward, and the second cavity is embedded into the embedded portions of the waterproof rubber strip. According to the expansion joint with the convertible cavity, the sectional materials with the cavities in various shapes and waterproof rubber strips with different embedded portions can be effectively connected with the transition components, the openings of the cavities of the transition components are downward, mortar inleakage can be effectively avoided in the construction process, and installation of the expansion joint and the replacement of the waterproof rubber strips are facilitated.
Description
Technical field
The invention belongs to bridge engineering component technology field, relate to a kind of shrinkage joint, be specifically related to the convertible shrinkage joint of a kind of die cavity.
Background technology
Building shrinkage joint, also referred to as shrinkage joint, refers to as preventing that building member is because climate temperature changes (heat expansion, shrinkage), makes structure generation crack or destruction and a build joint arranging along the suitable position of building or structure constuction joint direction.Shrinkage joint be by building unit more than basis as body of wall, floor, roof (except log cabin top) are divided into two independent sectors, make building or structure can do horizontal extension along length direction.
Railroad bridge stretching device is the important link between railroad bridge end, and to bridge end, flexible and water resistance plays an important role, and its quality and water resistance will directly affect the durability of bed rearrangement bridge.Railroad bridge expansion joints in the past, only arranges gear quarrel cover plate at beam-ends, and Qinhuangdao Shenyang Special Passenger Line bridge once selected road retractor device for railroad bridge, and shaped steel is because weatherability is poor, and corrosion is very fast; The easy accumulated slag of V-arrangement water proof rubber bar, cleaning difficulty, fragile, make stretching device lose water resistance; Road retractor device structure is installed for railroad bridge, reservedly notch is installed will affect Beam transportation vehicle current, simultaneously water proof rubber bar setting-in and change difficult.
Because the life requirement of Line for Passenger Transportation is high, be 100 years application life, between beam-ends, must adopt the stretching device waterproof of reliable durable, protection beam body and bridge substructure, within 2005, science and technology department of the Ministry of Railways has issued the provisional technical condition > > of first < < passenger transport special railway line bridge expanding device of China ([2005] No. 101 literary compositions of Ministry of Railways's science and technology base), the weather-proof type steel expansion device of TSSF Passenger dedicated railway Bridge carries out development and design according to these technical condition and in conjunction with the feature of railroad bridge, broken through traditional type steel expansion device structure, the weatherability that has solved traditional type steel expansion device existence is poor, easy accumulated slag, water proof rubber bar cracky and be difficult to change and the drawback that causes leaking, due to simple in structure, dependable performance, easy for installation, be highly suitable for railroad bridge, and selected by logical bridge (2006) 8388 < < passenger dedicated railway line Common Span bridge floor ancillary facility > > drawings.
The weather-proof type steel expansion device of TSSF type railway bridge is comprised of shaped steel, water proof rubber bar, waveform muscle, gear quarrel cover plate etc., has following characteristics:
1, shaped steel durability is good, and shaped steel material selection weathering steel adds alloying element in steel, on weathering steel surface, forms topping, has improved the weather resistance of steel.And surface employing galvanizing processing, further improve antiseptic property.
2, shaped steel adopts overall thermal milling train to shape, good mechanical property, and sectional shape size is accurate, and particularly the dimensional accuracy of die cavity is high, and good to the gripping performance of water proof rubber bar, water resistance is reliable.
3, shaped steel is opening up, is convenient to installation and the replacing of water proof rubber bar.
4, rubber strip ageing resistace is good.Consider that water proof rubber bar is changed close traffic very difficult, my company adopts the splendid ethylene propylene diene rubber of ozone-resistant aging property to make adhesive tape, has increased water proof rubber bar section thickness simultaneously, improves the application life of water proof rubber bar.
5, the box structure of water proof rubber strip adoption uniqueness, in telescopic process, water proof rubber bar end face is concordant with shaped steel end face all the time, both met telescopicing performance, can play again automatic deslagging effect, curve upper beam splaying changes in the time of can not adopting box structure adhesive tape, adopt band type structure adhesive tape, meet installation requirement.
6, railroad bridge stretching device does not bear the direct effect of wheel, does not consider load bearing requirements, and TSSF stretching device structure height is only 38mm, can be arranged in bridge floor topping, need on beam body, not establish installation notch, constructs simple and convenient.
But existing stretching device is in the inner side of shaped steel, the die cavity corresponding with adhesive tape shape to be set in advance, setting-in water proof rubber bar again, the setting-in position of water proof rubber bar must keep with the shape of die cavity adapting, and this has limited the application of difformity setting-in position water proof rubber bar; And in installation process, the mortar that easily bleeds in die cavity, brings certain difficulty to the complete embedding in setting-in position of follow-up water proof rubber bar.
Summary of the invention
In view of this, the object of the present invention is to provide the convertible shrinkage joint of a kind of die cavity, facilitate the water proof rubber bar at difformity setting-in position and the setting-in of die cavity.
In order to realize above-mentioned object, the invention provides following technical scheme:
The convertible shrinkage joint of die cavity of the present invention, comprise being discretely abreast arranged on the section bar of the left and right sides, being relatively arranged on the water proof rubber bar that the first die cavity, the both sides of opening upwards inside described section bar are provided with setting-in position, also comprise and connect described section bar and the transition member of water proof rubber bar;
Described transition member comprise with the built-in end of the first described cavity shape tabling and Open Side Down and can with the second die cavity of the setting-in position setting-in of described water proof rubber bar.
In technique scheme, described section bar is shaped steel or aluminium alloy extrusions.
In technique scheme, the surface of described section bar is provided with one deck zinc topping.
In technique scheme, described water proof rubber bar is box structure or band shape structure.
In technique scheme, described water proof rubber bar is ethylene-propylene-diene monomer adhesive tape.
In technique scheme, described transition member is transition aluminium extruded sections.
Compared with prior art, the convertible shrinkage joint of die cavity provided by the invention adopted comprise respectively with section bar on die cavity tabling built-in end, Open Side Down and the transition member of the die cavity of water proof rubber bar setting-in position setting-in, make the section bar water proof rubber bar different with setting-in position of various shape die cavities to realize effectively and being connected by transition member, and Open Side Down for the die cavity of transition member, bleeding of mortar in work progress be can effectively avoid, the installation at shrinkage joint and the replacing of water proof rubber bar facilitated.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing relevant of the present invention in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation at existing shrinkage joint;
Fig. 2 is the structural representation at the convertible shrinkage joint of die cavity of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is described in detail, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belongs to the scope of protection of the invention.
As shown in Figure 1, existing shrinkage joint, comprise the discrete section bar 1 that is arranged on the left and right sides and section bar 2 abreast, two die cavities 11 that are relatively arranged on section bar 1 and section bar 2 inner side opening upwards and water proof rubber bar 3, water proof rubber bar 3 both sides are respectively provided with a setting-in position 31, the shape of the shape at setting-in position 31 and die cavity 11 matches, and it just fills full die cavity 11 while embedding.
As shown in Figure 2, the convertible shrinkage joint of die cavity of the present invention, comprise abreast discrete section bar 1 and the section bar 2 that is arranged on the left and right sides, be relatively arranged on the first die cavity 11 of section bar 1 and section bar 2 inner side opening upwards, the water proof rubber bar 3 that both sides are provided with setting-in position 31, also comprise the transition member 4 of connection profile 1, section bar 2 and water proof rubber bar 3;
Transition member 4 comprise with the built-in end 42 of the first die cavity 11 shape tablings and Open Side Down and can with the second die cavity 41 of setting-in position 31 setting-ins of water proof rubber bar 3 both sides.
In technique scheme, described section bar 1 and section bar 2 are shaped steel or aluminium alloy extrusions.
In technique scheme, the surface of section bar 1 and section bar 2 is provided with one deck zinc topping.
In technique scheme, water proof rubber bar 3 is box structure or band shape structure.
In technique scheme, water proof rubber bar 3 is ethylene-propylene-diene monomer adhesive tape.
In technique scheme, transition member 4 is transition aluminium extruded sections.
Its construction technology is as follows:
1, back built-in fitting is set by drawing during beam body construction.
While 2, installing, installing zone should be cleaned out.
3, lifting shrinkage joint, adjusts shrinkage joint center line and substantially overlaps with center, beam-ends gap, and shaped steel is by bracing wire straightening.
4, press beam body topping end face absolute altitude and control shaped steel end face absolute altitude.
5, arrange and to cross reinforcing bar and dowel etc. is welded, then remove in time the fixedly cambered plate in shaped steel gap.
6, with transition member filling shaped steel die cavity, mounting rail Side Template.
7, must protect surface, shrinkage joint injury-free during fluid concrete topping.
8, until concrete, reach 70% water proof rubber of setting-in when above bar of design strength.During setting-in water proof rubber bar, application specific instrument carries out setting-in, can not damage water proof rubber bar, and the setting-in position of water proof rubber bar must be embedded in the die cavity of transition member completely.
9, ballasted track bridge expanssion joint: should be by positioning steel tube and the welding of back built-in fitting before concreting, the center of all positioning steel tubes is positioned on the same straight line parallel with shrinkage joint by drawing, and positioning steel tube is perpendicular to beam body end face, then spacer bars is inserted in positioning steel tube, last concreting, after setting-in water proof rubber bar, to keep off quarrel cover plate and spacer bars welding, and with waterproofing materials by the clearance seal between spacer bars and positioning steel tube, and the clearance seal between gear quarrel cover plate, after installing, shrinkage joint carries out the laying of topping.Add a cover after steel plate at shrinkage joint, should be consistent with bridge floor topping height in gear quarrel wall inside height, be beneficial to the operation of large-scale Maintenance Machinery, and in cable channel, the shrinkage joint gradient should be consistent with the topping gradient.
10, ballastless track bridge shrinkage joint: ballastless track bridge shrinkage joint is directly connected with bridge floor topping longitudinal reinforcement by connecting bolt, or by bearing bar, weld between connecting bolt and beam body built-in fitting.After the construction of bridge floor topping, carry out the installation at shrinkage joint, for avoiding place, shrinkage joint ponding outside bridge is flowed out at shrinkage joint, expansion joint setting 2% cross fall in cable channel, within the scope of beam-ends 200～300mm, shrinkage joint and span centre direction bridge floor topping carry out along connecing.
In sum, the convertible shrinkage joint of die cavity provided by the invention adopted comprise respectively with section bar on die cavity tabling built-in end, Open Side Down and the transition member of the die cavity of water proof rubber bar setting-in position setting-in, make the section bar water proof rubber bar different with setting-in position of various shape die cavities to realize effectively and being connected by transition member, and Open Side Down for the die cavity of transition member, bleeding of mortar in work progress be can effectively avoid, the installation at shrinkage joint and the replacing of water proof rubber bar facilitated.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and in the situation that not deviating from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present invention is limited by claims rather than above-mentioned explanation, is therefore intended to include in the present invention dropping on the implication that is equal to important document of claim and all changes in scope.Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this manual is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of manual is only for clarity sake, those skilled in the art should make manual as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.
Claims (6)
1. the convertible shrinkage joint of die cavity, comprise the discrete section bar (1 that is arranged on the left and right sides abreast, 2), be relatively arranged on described section bar (1,2) the first die cavity (11), the both sides of inner side opening upwards are provided with the water proof rubber bar (3) at setting-in position (31), it is characterized in that: also comprise and connect described section bar (1,2) and the transition member (4) of water proof rubber bar (3); Described transition member (4) comprise with the built-in end (42) of described the first die cavity (11) shape tabling and Open Side Down and can with second die cavity (41) of setting-in position (31) setting-in of described water proof rubber bar (3).
2. the convertible shrinkage joint of die cavity according to claim 1, is characterized in that: described section bar (1,2) is shaped steel or aluminium alloy extrusions.
3. the convertible shrinkage joint of die cavity according to claim 1 and 2, is characterized in that: the surface of described section bar (1,2) is provided with one deck zinc topping.
4. the convertible shrinkage joint of die cavity according to claim 1, is characterized in that: described water proof rubber bar (3) is box structure or band shape structure.
5. the convertible shrinkage joint of die cavity according to claim 1, is characterized in that: described water proof rubber bar (3) is ethylene-propylene-diene monomer adhesive tape.
6. according to the convertible shrinkage joint of die cavity described in claim 1～4 any one, it is characterized in that: described transition member (4) is transition aluminium extruded sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410161411.9A CN103924512B (en) | 2014-04-21 | 2014-04-21 | A kind of convertible shrinkage joint of die cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410161411.9A CN103924512B (en) | 2014-04-21 | 2014-04-21 | A kind of convertible shrinkage joint of die cavity |
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| CN103924512A true CN103924512A (en) | 2014-07-16 |
| CN103924512B CN103924512B (en) | 2016-04-13 |
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| CN201410161411.9A Active CN103924512B (en) | 2014-04-21 | 2014-04-21 | A kind of convertible shrinkage joint of die cavity |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758798A (en) * | 2016-12-26 | 2017-05-31 | 安徽尚德科技有限公司 | Replaceable bridge extension joint can be pulled and pushed |
| CN107100096A (en) * | 2017-06-26 | 2017-08-29 | 安徽尚德科技有限公司 | A kind of water proof rubber band removes frock |
| CN107178157A (en) * | 2017-06-29 | 2017-09-19 | 乐山市沙湾区金山机械制造有限责任公司 | A kind of sealing shaped steel |
| CN108221717A (en) * | 2018-03-02 | 2018-06-29 | 尚德建设集团有限公司 | It is a kind of to replace water-tight device suitable for the easy of Existing Railway Line bridge expanssion joint |
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| CN2677446Y (en) * | 2003-10-28 | 2005-02-09 | 李聚兴 | Changable sealing-up device |
| JP2012062618A (en) * | 2010-09-14 | 2012-03-29 | Tokyo Fabric Kogyo Kk | Fixing structure of water cut-off gutter |
| CN203096604U (en) * | 2013-01-29 | 2013-07-31 | 成都市新筑路桥机械股份有限公司 | Replaceable stretching device for bridge |
| DE102012107901B3 (en) * | 2012-08-28 | 2013-09-19 | Migua Fugensysteme Gmbh & Co. Kg | Joint profile for a movement joint |
| CN203256610U (en) * | 2013-05-28 | 2013-10-30 | 赵卫星 | Road bridge expansion joint |
| CN103540040A (en) * | 2013-09-30 | 2014-01-29 | 潍坊市宏源防水材料有限公司 | EPDM (Ethylene-Propylene-Diene Monomer) rubber waterproof rolling material and production method and welding method thereof |
| CN203855890U (en) * | 2014-04-21 | 2014-10-01 | 苏州海德工程材料科技有限公司 | Telescopic seam with convertible cavities |
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2014
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2677446Y (en) * | 2003-10-28 | 2005-02-09 | 李聚兴 | Changable sealing-up device |
| JP2012062618A (en) * | 2010-09-14 | 2012-03-29 | Tokyo Fabric Kogyo Kk | Fixing structure of water cut-off gutter |
| DE102012107901B3 (en) * | 2012-08-28 | 2013-09-19 | Migua Fugensysteme Gmbh & Co. Kg | Joint profile for a movement joint |
| CN203096604U (en) * | 2013-01-29 | 2013-07-31 | 成都市新筑路桥机械股份有限公司 | Replaceable stretching device for bridge |
| CN203256610U (en) * | 2013-05-28 | 2013-10-30 | 赵卫星 | Road bridge expansion joint |
| CN103540040A (en) * | 2013-09-30 | 2014-01-29 | 潍坊市宏源防水材料有限公司 | EPDM (Ethylene-Propylene-Diene Monomer) rubber waterproof rolling material and production method and welding method thereof |
| CN203855890U (en) * | 2014-04-21 | 2014-10-01 | 苏州海德工程材料科技有限公司 | Telescopic seam with convertible cavities |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758798A (en) * | 2016-12-26 | 2017-05-31 | 安徽尚德科技有限公司 | Replaceable bridge extension joint can be pulled and pushed |
| CN107100096A (en) * | 2017-06-26 | 2017-08-29 | 安徽尚德科技有限公司 | A kind of water proof rubber band removes frock |
| CN107100096B (en) * | 2017-06-26 | 2018-03-09 | 安徽尚德科技有限公司 | A kind of water proof rubber band removes frock |
| CN107178157A (en) * | 2017-06-29 | 2017-09-19 | 乐山市沙湾区金山机械制造有限责任公司 | A kind of sealing shaped steel |
| CN108221717A (en) * | 2018-03-02 | 2018-06-29 | 尚德建设集团有限公司 | It is a kind of to replace water-tight device suitable for the easy of Existing Railway Line bridge expanssion joint |
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| Publication number | Publication date |
|---|---|
| CN103924512B (en) | 2016-04-13 |
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Address after: 215500, 5, Golden Gate Road, Southeast Development Zone, Suzhou, Jiangsu, Changshou City Applicant after: SUZHOU HAIDER ENGINEERING MATERIALS CO., LTD. Address before: 215500, 5, Golden Gate Road, Southeast Development Zone, Suzhou, Jiangsu, Changshou City Applicant before: SUZHOU HAIDER ENGINEERING MATERIAL CO., LTD. |
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