CN2570319Y - Transferring control device of tied arch bridge hanger rod changing - Google Patents
Transferring control device of tied arch bridge hanger rod changing Download PDFInfo
- Publication number
- CN2570319Y CN2570319Y CN 02267034 CN02267034U CN2570319Y CN 2570319 Y CN2570319 Y CN 2570319Y CN 02267034 CN02267034 CN 02267034 CN 02267034 U CN02267034 U CN 02267034U CN 2570319 Y CN2570319 Y CN 2570319Y
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- Prior art keywords
- steel
- box
- hanger rod
- cushion cap
- shaped cushion
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- Expired - Lifetime
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Abstract
The utility model relates to a transferring control device of a tied arch bridge hanger rod, which is changed without injuries when stressed. The utility model is composed of a box-shaped bearing platform, finish rolling screw-thread steel, an anti-loosing safety bolt, a locally pressing cushion plate, a hydraulic jack, etc. The utility model has the advantages of scientific design, simple fabrication, easy installation, flexible regulation, convenient disassembly, and strong controllability; the utility model can ensure force is smoothly transferred from a pseudo changing hanger rod to a new hanger rod in the process of the change of the hanger rod, and the whole bridge surface can easily carry out the construction of the change of the hanger rod under the states of small additive deformation, displacement and pressure.
Description
Technical field
The utility model belongs to technical field of bridge engineering, is specifically related to stressed control-transferring device in a kind of tied arch bridge hanger rod replacing.
Background technology
Arch bridge has obtained extensive use because of its unique advantage in bridge construction, China has built all kinds of arch bridges at present and reached more than 40,000.But the restriction of the design during owing to its loading characteristic (as the local static determinacy of hanging rod structure) and construction, construction, material, technology, maintaining level etc., maintenance work will be the important content that guarantees such bridge security operation.
After having the bridge of suitable vast scale to assess after testing, need carry out suspender replacement, to guarantee its military service ability.
The engineering practice that present China has implemented suspender replacement is mainly suspension bridge and cable stayed bridge, and the nondestructive replacement of tied arch bridge hanger rod then is blank.Being correlated with of having carried out more changes jobs, and bridge had certain breakage, and do not have clear and definite aid.
Summary of the invention
The purpose of this utility model is a power control-transferring device during a kind of tied arch bridge hanger rod of design is changed, and to solve the reliable level and smooth controlled transfer of power in the suspender replacement process, reaches the not damaged target of intending changing bridge.
The control-transferring device that the tied arch bridge hanger rod of the utility model design is changed constitutes (see Fig. 1-shown in Figure 3) by box-shaped cushion cap, fining twisted steel, locking safetybolt, office's pressure pad plate, hydraulic jack and adjusting steel bracket.Wherein, box-shaped cushion cap 1 is made of in the welding of place, the edge of a wing 2 i iron 11 and 12, is provided with the steel rib 13 of putting more energy between the i iron edge of a wing; Office's pressure pad plate 2 is arranged at the two ends of the joint of i iron, has the preformed hole 5 that runs through the box-shaped cushion cap on office's pressure pad plate 2, is used to pass fining twisted steel 3, and preformed hole 5 is generally 2-4; Locking safetybolt 4 is made of pair of bolts 11 and 12, during work for fixing to fining twisted steel 3; Hydraulic jack 6 is located on the box-shaped cushion cap, regulates steel bracket 7 and is arranged between box-shaped cushion cap 2 and the jack 6.Usually deserving to be called and stating control device is the instrument suspension rod.
In engineering was used, box-shaped cushion cap 1 was made of 4 groups of i iron 11 and 12 quadrature settings, and corresponding fining twisted steel 3, hydraulic jack 6, adjusting steel bracket 7 also are 4 groups.
The dimensional parameters symbol of each main member is seen accompanying drawing 2:
(1) welding H-bar size Control parameter.Single welding H-bar size index is shown in Fig. 2 (a): flange width b
f, edge of a wing thickness h
F1, h
F2, web height h
w, web width b
wThe appearance and size controlling parameter of welding back instrument suspension rod is shown in Fig. 2 (d), (e): length L, width W, height H (H=2h
F2+ h
w).
(2) the size Control parameter of office's pressure pad plate 2 is shown in Fig. 2 (b): thickness h
a, the outer development length h of bolt
b
(3) put more energy into the size Control parameter of steel rib 13 shown in Fig. 2 (c), (e): spacing d
1And d
2, and the number n of the steel rib of putting more energy into, the planar dimension h of the steel rib of putting more energy into
rAnd b
r
(4) the size Control parameter of fining twisted steel 3 is its diameter δ and the high-strength bolt that matches with pitch.
(5) the size Control parameter index that concerns between office's pressure pad plate, reserving hole channel and the high-strength bolt is: w
i, d
v, d
hSee shown in Fig. 2 (f).
(6) size Control parameter such as Fig. 2 (f) of office's compressed steel plate are depicted as: length h
s, width w
s
(7) hydraulic jack and regulate selecting for use with design parameters of steel bracket the load tonnage of intending changing bridge is arranged is specifically selected for use and is designed.
In the utility model, fining twisted steel 3 is selected according to the needs of concrete engineering, its length is convenient to regulate, and quantity is some (according to the quantity of intending changing the bridge suspension rod, decisions such as the length difference opposite sex), the pitch of the high-strength bolt of adjacent fining twisted steel joint should satisfy requirement of strength, fining twisted steel after the assembling is the internal force of progressively load shedding plan replacing suspension rod and the core power transmission translation building block that internal force progressively is delivered to new suspension rod, the degree of deviation that the center of gravity with joint efforts and the plan of its intensity and assembling fining twisted steel group (be generally four pairs, see accompanying drawing 3) are changed the suspension rod geometric center of gravity is main mechanics controlling parameter.Locking safetybolt 4 has 2 bolts, and be used for anti-locking apparatus and get loose, but and adjustment release internal force.Office's pressure pad plate 2 is excessive for preventing suspension rod internal force, crushes bad and point load disperser that be provided with to instrument suspension rod top flange (cover plate) generation office.Reserving hole channel 5 is the usefulness of interspersed fining twisted steel, generally reserves 4 ducts on each instrument suspension rod, sees accompanying drawing 1 (b).The welding H-bar 11 of box-shaped cushion cap 1 and welding H-bar 12 are the cage construction of this instrument derrick rig, should satisfy structure design indexs such as intensity, stable, rigidity drawn game pressure.Regulate steel bracket 7 and be at suspension rod and progressively in hierarchical loading or the discharge mechanism process, play safety effect, the fuel tap door that ends of hydraulic jack also has insurance function simultaneously.The effect and the principle of hydraulic jack and reading control oil meter: be the core component of this device control, 4 jack of employing apply synchronously or discharge load in the common engineering, thereby it selects for use principle that loading scope, precision and Synchronization Control performance etc. are arranged.
The a complete set of equipment installation drawing of the utility model device is as shown in Figure 3: (a) be the instrument suspension rod welding H-bar and the anchoring means thereof of arch rib end; (b) be the support platform (surfacing of arc arch rib is smooth, and the anti-slide device that changes is set) of arch rib end with steel concrete; Accompanying drawing 3 amplifier sections are main instrument suspension rod Loading Control platform, instrument suspension rod welding H-bar by two pairs of quadratures is formed, and forms the work plane of jack tension effect, and oil meter reading control device then is located at facility place nearby, particularly, (c) fining twisted steel 3; (d) hydraulic jack 6; (e) regulate steel bracket 7; (f) horizontal (perpendicular to the bridge aspect) welding H-bar skeleton; (g) vertical (along the bridge aspect) welding H-bar skeleton; (h) office's pressure pad plate 2; (i) bolt I; (j) bolt II; (k) fining twisted steel 3; (l) bridge deck longeron; (m) office's pressure pad plate 2; (n) bolt I; (o) bolt II; (p) bridge deck crossbeam; (q) vertical (along the bridge aspect) welding H-bar skeleton.
The course of action of this device is as follows:
(1) supposition device such as accompanying drawing 3 have installed, and this moment, the instrument suspension rod did not stress, and intend the internal force of the arch bridge of replacing suspension rod position and are still born by old suspension rod;
(2) by calculating, determine to load size and progression, if be respectively mKN and n level, then jack (d) applies the big or small power of mKN that is first, because two pairs of welding H-bar cushion caps of quadrature counter-force each other support, the equal and opposite in direction of their power, direction is opposite, thereby the fining twisted steel group (C) of instrument suspension rod, (k) contraction in length, the distance of shortening is by high-strength bolt (i), (j) follow-up;
(3) like this, arch rib and bridge deck just are subjected to the constraint of the interior pulling force of instrument suspension rod, and the internal force that the old suspension rod of former cause is born is delivered on the instrument suspension rod according to certain factor of proportionality (by the form of structure decision, obtaining by mechanical analyzing method);
(4) same, be applied to n time always, the internal force of old like this suspension rod just can be transformed into and can remove anchoring means safely, has more renewed the degree of suspension rod;
(5) new suspension rod install ready after, its internal force is zero, the instrument suspension rod is born whole internal force of intending changing suspension rod position arch bridge;
(6) according to the inverse process that loads, the internal force of releasing tool progressively, the new suspension rod of simultaneous tension just can be delivered to internal force on the new suspension rod, thus the purpose of realization suspender replacement;
(7) the nondestructive replacement construction that two control indexes of the Synchronization Control that loads in the whole replacing process and power and displacement deformation can bridge.Reach practice effect economic, safe, efficient, advanced technology.Characteristics of the present utility model are as follows:
The design science of instrument suspension rod own, make simple, install easily, regulate flexibly, convenient disassembly, controllability be strong, can guarantee in the suspender replacement process, power is from intending changing suspension rod to the instrument suspension rod or from the level and smooth controlled transfer of instrument suspension rod to new suspension rod, under the state that make that whole bridge deck is very little at additional internal force, additional deformation and displacement is very little, realize the replacing construction of suspension rod smoothly.
2. reliable except that having, efficient, quick, the economic dispatch advantage of instrument suspension rod, also has safe advantage.Safety Design has been considered the design of two-stage level: the one, realize by the check device of jack; The 2nd, the anti-loosing device of the bearing welding steel box-shaped cushion cap by instrument suspension rod two ends (arch rib and girder system) is in length and breadth finished.
3. this device is with the position " disconnection " of continuous suspension rod from convenient construction, welding H-bar operating platform with the instrument suspension rod replaces it, and made full use of classical notion---the counterforce device of mechanics, make the loading of suspension rod and the unloading very simple controllable that becomes, the operating platform of quadrature provides work plane for the stretch-draw of jack simultaneously.
4. in the suspender replacement process, it is comprehensive that this installs incidental control measure, means science, efficient.One cover is served the control measure of direct loading, unloading, prevents slide device etc. as the synchronous charger of only fuel tap door, the jack of the bolt adjustable support under, jack, arch rib end; Another set of control measure are the high level goal of bridge nondestructive replacement, as the Comprehensive Control measure of displacement, distortion and power.
5. adopt this instrument suspension rod, can realize the nondestructive replacement of arch bridge suspender, can shorten the practice interval of envelope bridge construction even can to the urban traffic that expands day by day positive effect be arranged at the enforcement suspender replacement under the situation of not sealing bridge.
Description of drawings
Fig. 1 is the utility model structural diagrams.Wherein, Fig. 1 (a) is the facade diagram, and Fig. 1 (b) is a cross-section illustration, and Fig. 1 (c) is the plane diagram.
Fig. 2 is an element structure diagram of the present utility model.Wherein, Fig. 2 (a) is the single welding H-bar structural parameters diagram of box-shaped cushion cap 1, Fig. 2 (b) is office's pressure pad plate 2 structural parameters diagram, Fig. 2 (c) is ribs spacing diagram, Fig. 2 (d) is welding H-bar dimensional parameters diagram, Fig. 2 (e) is ribs structural parameters diagram, and Fig. 2 (f) is backing plate, duct, bolt arrangement parameter diagram.
Fig. 3 is the utility model work assembling diagram, wherein, Fig. 3 (a) sketch, Fig. 3 (b) amplifies diagram.
Number in the figure: 1 is the box-shaped cushion cap, and 2 is office's pressure pad plate, and 3 is fining twisted steel, and 4 is locking safetybolt, and 5 is preformed hole, and 6 is hydraulic jack, and 7 for regulating steel bracket, and 11,12 is welding H-bar, and 13 is steel reinforcing segments.
The specific embodiment
Embodiment, the suspender replacement with somewhere half-through suspension rod arch bridge is an example below, specifies the structure of this device, the value of each controlling parameter of device is as follows:
(a) flange width b
f=120mm, edge of a wing thickness h
F1=12mm, h
F2=20mm, web height h
w=310mm, web width b
w=20mm;
(b) the appearance and size length L of welding back instrument suspension rod, width W=280mm, height H=350mm.
(c) the size h of office's pressure pad plate
s* w
s=280 * 1650mm
2
(d) the put more energy into parameter of steel rib: number n=6, rib thickness ω=20mm, d
1=d
2=80mm, the total length of rib are l=440mm.
(e) the size Control parameter of fining twisted steel is its diameter δ=32mm, and length is got 2.5m, 4.5m, several sections such as 9m.
(f) hydraulic jack is selected the CY70 jack for use.(h) load big or small m=120kN, loading progression is n=5～8 time at every turn.Bridge deck Deformation control amplitude is ± 3mm that the power control range is ± 0.8kN.The suspender replacement of this arch bridge is very well, and bridge is a not damaged.
Claims (3)
1, a kind of control-transferring device of tied arch bridge hanger rod replacing, it is characterized in that constituting by box-shaped cushion cap, fining twisted steel, locking safetybolt, office's pressure pad plate, hydraulic jack and adjusting steel bracket, box-shaped cushion cap (1) is made of in the welding of place, the edge of a wing 2 i iron (11) and (12), is provided with the steel rib (13) of putting more energy between the i iron edge of a wing; Office's pressure pad plate (2) is arranged at the two ends of the joint of i iron, has the preformed hole (5) that runs through the box-shaped cushion cap on office's pressure pad plate (2), is used to pass fining twisted steel (3); Locking safetybolt (4) is made of pair of bolts (11) and (12), during work for fixing to fining twisted steel (3); Hydraulic jack (6) is located on the box-shaped cushion cap, regulates steel bracket (7) and is arranged between box-shaped cushion cap (2) and the jack (6).
2, control device according to claim 1 is characterized in that the needs of the concrete engineering of fining twisted steel (3) basis are selected, and its length is convenient to regulate, and the pitch of screw-thread steel joint bolt satisfies requirement of strength.
3, control device according to claim 1 is characterized in that box-shaped cushion cap (1) is provided with formation by 4 groups of i iron (11) and (12) quadrature, and corresponding fining twisted steel (3), hydraulic jack (6), adjusting steel bracket (7) also are 4 groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02267034 CN2570319Y (en) | 2002-09-10 | 2002-09-10 | Transferring control device of tied arch bridge hanger rod changing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02267034 CN2570319Y (en) | 2002-09-10 | 2002-09-10 | Transferring control device of tied arch bridge hanger rod changing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2570319Y true CN2570319Y (en) | 2003-09-03 |
Family
ID=33732720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02267034 Expired - Lifetime CN2570319Y (en) | 2002-09-10 | 2002-09-10 | Transferring control device of tied arch bridge hanger rod changing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2570319Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251477A (en) * | 2011-04-19 | 2011-11-23 | 中铁二十三局集团第三工程有限公司 | Traversing construction method for tie bar arch |
| CN101736694B (en) * | 2008-11-24 | 2011-12-07 | 中铁十六局集团有限公司 | Technology of front-nose-girder anchor support of 900 bridge erecting machine for passenger railway line |
| CN102286942A (en) * | 2011-08-23 | 2011-12-21 | 河海大学 | Device for replacing suspenders of tied arch bridge |
| CN107100094A (en) * | 2017-06-14 | 2017-08-29 | 沈阳建筑大学 | A kind of continuous rigid frame bridge tied arch ruggedized construction and its construction method |
-
2002
- 2002-09-10 CN CN 02267034 patent/CN2570319Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736694B (en) * | 2008-11-24 | 2011-12-07 | 中铁十六局集团有限公司 | Technology of front-nose-girder anchor support of 900 bridge erecting machine for passenger railway line |
| CN102251477A (en) * | 2011-04-19 | 2011-11-23 | 中铁二十三局集团第三工程有限公司 | Traversing construction method for tie bar arch |
| CN102251477B (en) * | 2011-04-19 | 2013-01-09 | 中铁二十三局集团第三工程有限公司 | Traversing construction method for tie bar arch |
| CN102286942A (en) * | 2011-08-23 | 2011-12-21 | 河海大学 | Device for replacing suspenders of tied arch bridge |
| CN102286942B (en) * | 2011-08-23 | 2013-03-06 | 河海大学 | Device for replacing suspenders of tied arch bridge |
| CN107100094A (en) * | 2017-06-14 | 2017-08-29 | 沈阳建筑大学 | A kind of continuous rigid frame bridge tied arch ruggedized construction and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120910 Granted publication date: 20030903 |