CN1047901A - Bridge expansion joint unit with self-controlled rotary arm - Google Patents
Bridge expansion joint unit with self-controlled rotary arm Download PDFInfo
- Publication number
- CN1047901A CN1047901A CN 89103848 CN89103848A CN1047901A CN 1047901 A CN1047901 A CN 1047901A CN 89103848 CN89103848 CN 89103848 CN 89103848 A CN89103848 A CN 89103848A CN 1047901 A CN1047901 A CN 1047901A
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- cross girders
- slip
- pivoted arm
- expansion gap
- pin
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Abstract
The present invention relates to a kind of bridge expansion joint installation, this device is made up of middle girder 1, elastic sealing element 3, cross girders 4, support spring 5, pre-compressed spring 6 and cross girders case, separate with guide upright post at cross girders 4 two ends, there is a slip the bolt pin at every crossbeam 4 two ends, and be embedded in the chute below the pivoted arm 9, pivoted arm 9 can rotate around the rotation pin of one end, at any time, the slip the bolt pin that is in a straight line between cross girders 4 two ends all is equidistant, thereby relatively evenly displacement between the adjacent cross girders, thereby the middle girder that is cemented on the cross girders is evenly shunk.
Description
The present invention is a stretching device special-purpose in a kind of bridge engineering, a kind of bridge expansion joint installation of more specifically saying so, and by middle girder, cross girders, elastic sealing element, support spring and give compositions such as pressing spring, cross girders case.
At present, advanced in the world bridge expansion joint installation is a West Germany, " MAV
RE
RS
OHNe" MAV that produces of factory
RE
RExpansion gap device.The 8th page of " municipal technology " in 1987 fourth phase is to MAV
RE
RExpansion gap device has been made report.Fig. 1 is the sectional view of this expansion gap device, Fig. 2 is the plan view of this expansion gap device, as depicted in figs. 1 and 2, the formation of this kind expansion gap device is to be divided into some secondary seams 2 by one group of middle girder 1 arranging along flexible direction, and the width of secondary seam 2 is consistent with the working range of the rubber seal of each open section 3.This seal 3 is clamped between middle girder 1 and expansion gap device node side bar and last root middle girder.Every middle girder 1 is all being supported by the identical cross girders 4 in interval, and is welded on the cross girders 4.Every middle girder 1 has the cross girders 4 of a cover self-organizing system, and the group number of cross girders 4 is identical with the group number of middle girder 1.In the expansion gap device both sides, cross girders 4 is supported on the sliding support 5, relies on the pressure that pressing spring 6 produces that gives on top, and cross girders 4 and bearing 5 are forever kept in touch.Support system is installed in each cross girders case 7 the inside, limit, shrinkage joint.Adorn box 1.5m placement at interval of the bearing of one group of cross girders 4 in these, and be fixed on the structural concrete with dowel bolt and steel anchor ring along the shrinkage joint.Control spring 8 be installed between the cross girders 4 and last root beam and cross girders case at stretching device two ends between, to control moving of each root middle girder 1.Spring 8 is that extraordinary synthetic rubber foam is made.Middle girder 1 is that extraordinary deformed steel is made.MAV
RE
RThe weak point of expansion gap device is: 1. be that to adopt elasticity to control flexible, because the elastic characteristic of spring is difficult to, even we can say can not be in full accord, so expansion gap device shrinks in any case reach fully uniformly.2. elasticity (spring) control is flexible, and flexible uniformity is subjected to material, frictional force, bearing to be out of shape influence of various factors such as service time.3. need special material, the synthetic rubber foam of using as spring; The extraordinary deformed steels that middle girder is used etc., these materials are not only difficult to be made and buys, and processing difficulties.4. cost height, domestic can't the manufacturing needs import.
The objective of the invention is to avoid above-mentioned weak point of the prior art and provide a kind of flexible evenly, can make of common material, easy to process, cheap bridge expansion joint installation.This device has kept waterproof and dustproof in the prior art, shock-absorbing and noise-eliminating, advantages such as long service life simultaneously.
Purpose of the present invention can reach by following technical measures.
Flexible with the control of pivoted arm and guide upright post, between every cross girders two ends, separate with fixing guide upright post, make that cross girders is in equidistantly all the time, parastate; One end of pivoted arm 9 is fixed with the rotation pin, and pivoted arm can rotate around the rotation pin, has chute below pivoted arm; Each fixedly connected slip the bolt pin of each root cross girders two ends, the slip the bolt pin of the same end of cross girders are embedded in the chute below the pivoted arm, and can slide therein.
The slip the bolt pin that is fixed on the cross girders end is cylindrical, and the chute width below its diameter and the pivoted arm is complementary, and its height on cross girders and the chute degree of depth below the pivoted arm are complementary; Slip the bolt pin is vertically to be cemented on the cross girders, and consolidation method can be welding or is threaded.
At each slip the bolt pin of the same end of each cross girders and fixedly the rotation pin of pivoted arm is on same straight line, the spacing of pin equates.
The guide upright post diameter that separates cross girders is identical, and its diameter equates with clear distance between the cross girders.Guide upright post is with screw thread or be welded on the cross girders case.
Because every middle girder is all being supported by the cross girders that spacing equates, and is welded on the cross girders, one group of middle girder is identical with the radical of cross girders simultaneously.When the expansion gap device purse up or when stretching out; under the effect of guide upright post; pivoted arm can only rotate around the rotation pin; cross girders moves along the bridge y direction; slide in the chute of slip the bolt pin below pivoted arm; to be in the slip the bolt pin on the straight line all be equidistant relatively evenly displacement at the cross girders two ends at any time, thereby guaranteed to be cemented in the even contraction of the middle girder on the cross girders.
Fig. 3 is a sectional view of the present invention;
Fig. 4 is a plan view of the present invention;
Fig. 5 is a stereogram of the present invention;
Fig. 6 is cross girders among Fig. 3,4,5, slip the bolt pin, pivoted arm, chute assembling fragmentary, perspective view.
Fig. 7 is I among Fig. 4-I sectional view;
The present invention is described in further detail below in conjunction with accompanying drawing (embodiment):
One group made from 140 shaped steel rails is isometric, and with the rectangle middle girder 4 that equidistant arrangement is put, the spacing between each middle girder is secondary seam 2, be installed in the V-arrangement rubber strip between the cross girders 4, there is rib at two ends, be embedded on the cross girders 4 along in the groove of bottom, compress with spiral shell spare.End face is a runway, and the cross girders 4 of the square-section that each middle girder 1 is all made by 1.2 meters common irons of spacing is supporting, and is welded on the cross girders 4, and a middle girder 1 and a cross girders 4 have a pad.Guide upright post 10 between cross girders is to make with common iron, is fixed by bolts on the cross girders case.Cross girders 4 two end supports rely on the upper end to play the pressure that giving of spring action presses block rubber 6 to produce on neoprene bearing 5, and cross girders 4 and bearing 5 are forever kept in touch.This support system is sealed in the cross girders case 7.Cross girders case 7 is axially installed by 1.2 meters spacings along bridge, is anchored on steel concrete and the abutment with the steel anchor ring.The two ends vertical fixing of every cross girders 4 links a slip the bolt pin mouth, and consolidation method, available welding or bolt are connected the slip the bolt pin 12 of the same end of cross girders on same straight line, and the spacing of pin equates.Slip the bolt pin is embedded in the chute 13 below the pivoted arm 9.End at pivoted arm 9 is cemented in pivoted arm 9 on the cross girders case 7 with rotation pin 11, and consolidation style can connect with welding or bolt, and pivoted arm 9 can rotate around rotation pin 11.
Attitude is shown in action:
When expansion gap device extended maximum position, all cross girders 4 were in the rectangle state with pivoted arm 9, as the solid line position among Fig. 3.When the expansion gap device purse up, pivoted arm 9 rotates around rotation pin 11, slide the chute 13 of the slip the bolt pin 12 on the cross girders pivoted arm 9 below in, and the even relatively displacement of adjacent cross girders 4, thus guaranteed to be fixed on the also even relatively purse up of middle girder of cross girders 4.Empty money is represented the state that expansion gap device safety is closed up on Fig. 3.
The present invention compared with prior art has following advantage:
1. guaranteed flexible uniformity; MAVRE
RRetractor device is owing to adopt elasticity control flexible, no matter be theoretically or on material behavior, can not reach fully uniformly flexible. The present invention adopts the control of the machinery of guide upright post pivoted arm, has guaranteed flexible uniformity.
2. flexible uniformity is not subjected to the impact of extraneous factor, MAVRE
RThe flexible uniformity of retractor device is affected by material, bearing, frictional force, bearing distortion, the multiple of service time, and the uniformity of retractor device of the present invention is not subjected to the impact of above-mentioned extraneous factor.
3. do not need special material, easy to process, MAVRE
RThe retractor device cross girders is extraordinary deformed steel, and the extension and contraction control member is that special material is made, and material is difficult to make, and difficulty of processing is big, and all materials of the present invention all are the common iron formations.
Claims (8)
1, a kind of bridge expansion joint unit with self-controlled rotary arm, it by middle girder 1, elastic sealing element 3, cross girders 4, support spring (elastomer block) 5, give pressing spring (elastomer block) 6, cross girders stuffing box 7 etc. and form, it is characterized in that between every cross girders 4 two ends, separate with fixing guide upright post 10; Every each fixedly connected slip the bolt pin 12 of cross girders 4 two ends is fixed on the cross girders case with rotation pin 11 at the end with pivoted arm 9, and pivoted arm 9 can rotate around rotation pin 11; Have chute 13 below pivoted arm 9, slip the bolt pin 12 is embedded in the chute 13 below the pivoted arm 9, and slip the bolt pin 12 can slide in chute 13.
2, expansion gap device as claimed in claim 1, the slip the bolt pin 12 that it is characterized in that being fixed on cross girders 4 ends is perpendicular with cross girders 4.
3, expansion gap device as claimed in claim 1 is characterized in that at each slip the bolt pin 12 of each cross girders 4 same ends and fixedly the rotation pin 11 of pivoted arm 9 is on same straight line, and spacing is identical.
4,, it is characterized in that cross girders 4 and slip the bolt pin are welding or are threaded as claim 1 and 2 described expansion gap devices.
5, expansion gap device as claimed in claim 1, the rotation pin 11 that it is characterized in that two pivoted arm 9 ends of two groups of cross girders 4 coupling uses in expansion gap device is in by two pivoted arms 9, on the rectangle that middle girder 1 and cross girders 4 are constituted or the position of diagonal of a parallelogram, promptly be in the end opposite of two pivoted arms 9.
6, expansion gap device as claimed in claim 1 is characterized in that separating that clear distance equates that the diameter of all guide upright posts 10 is identical between diameter and the cross girders of fixed guide column 10 of cross girders 4.
7, expansion gap device as claimed in claim 1 is characterized in that slip the bolt pin 12 on the cross girders 4 for cylindrical, and its diameter is complementary with the width of pivoted arm 9 following chutes 13, and its height on cross girders and the degree of depth of chute 13 are complementary.
8, expansion gap device as claimed in claim 1, the guide upright post 10 that it is characterized in that separating cross girders 4 is threaded or is welded on the cross girders stuffing box 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89103848 CN1047901A (en) | 1989-06-09 | 1989-06-09 | Bridge expansion joint unit with self-controlled rotary arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89103848 CN1047901A (en) | 1989-06-09 | 1989-06-09 | Bridge expansion joint unit with self-controlled rotary arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1047901A true CN1047901A (en) | 1990-12-19 |
Family
ID=4855317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89103848 Pending CN1047901A (en) | 1989-06-09 | 1989-06-09 | Bridge expansion joint unit with self-controlled rotary arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1047901A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102892956A (en) * | 2010-05-17 | 2013-01-23 | 建筑研究和技术有限公司 | Expansion joint system using flexible moment connection and friction springs |
| CN104988848A (en) * | 2015-07-10 | 2015-10-21 | 永嘉涛口日用品有限公司 | Bridge capable of automatically cleaning stretchable joints |
| CN105735117A (en) * | 2016-02-25 | 2016-07-06 | 成都迅德科技有限公司 | Bridge expansion joint connecting structure |
| CN109778691A (en) * | 2019-03-14 | 2019-05-21 | 中铁第四勘察设计院集团有限公司 | Steel bomb physique beam type profile steel bridge expansion device |
-
1989
- 1989-06-09 CN CN 89103848 patent/CN1047901A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102892956A (en) * | 2010-05-17 | 2013-01-23 | 建筑研究和技术有限公司 | Expansion joint system using flexible moment connection and friction springs |
| CN102892956B (en) * | 2010-05-17 | 2015-11-25 | 建筑研究和技术有限公司 | Use the expansion joint system of flexible moment connection part and friction spring |
| CN104988848A (en) * | 2015-07-10 | 2015-10-21 | 永嘉涛口日用品有限公司 | Bridge capable of automatically cleaning stretchable joints |
| CN104988848B (en) * | 2015-07-10 | 2016-08-17 | 永嘉涛口日用品有限公司 | One can carry out self-cleaning bridge to expansion joint |
| CN105735117A (en) * | 2016-02-25 | 2016-07-06 | 成都迅德科技有限公司 | Bridge expansion joint connecting structure |
| CN109778691A (en) * | 2019-03-14 | 2019-05-21 | 中铁第四勘察设计院集团有限公司 | Steel bomb physique beam type profile steel bridge expansion device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |