SI20098A2

SI20098A2 - Road dilatation clip

Info

Publication number: SI20098A2
Application number: SI9800252A
Authority: SI
Inventors: Pavel Munih
Original assignee: SAVA d.d., Gumarska in kemična industrija
Priority date: 1998-09-29
Filing date: 1998-09-29
Publication date: 2000-04-30

Abstract

The road dilatation clip with a basic rubber unit (1) and two longitudinal steel supports (2) features in its cross section consecutive upward looking dilatation pockets (3) and downwards looking dilatation pockets (4), all in a parallel position and preferably V-shaped with rounded angles. The pockets (3, 4) form a rubber barrier (5) and are in top view preferably in the shape of the letter I or V, with rounded and trapezoid cut sides (6) along the external edges. The basic rubber element (1) is screwed by screws (7) to a steel support (8). To overcome the wider dilatation gaps (9) the basic rubber elements (1) are linked together by gluing and/or welding of longitudinal steel profiles (2), a dilatation gap (9) connects by transverse supports (10), which are freely floating in the area of the base openings (11) and which are by plugs (12) flexibly centred with the centremost double steel support (13). The base openings (13) can also be mounted to a concrete slab of a building. The combined rubber dilatation through the extreme external simple longitudinal supports (2) is positioned in the steel base (8), screwed to steel anchors in the concrete structure, the upwards looking dilatation pockets (3) regarding the already installed dilatation clip are left empty or filled with elastic compressible mass.

Description

CESTNA DILATACIJSKA SPOJNICAROAD DILATING CLUTCH

Izum se nanaša na cestno dilatacijsko spojnico, ki premošča dilatacijsko fugo med cesto in mostom, viaduktom oz. med podobnimi gradbenimi konstrukcijami, preko katerih se odvija cestni promet z namenom, da pri kompenzaciji raztezkov posameznih delov zaradi reologije skrčevanja železo-betonskih konstrukcij in temperaturnih raztezkov konstrukcij zagotavlja primerne vozne lastnosti in tesni dilatacijsko fugo med zgoraj navedenimi deli.The invention relates to a road expansion joint that bridges the expansion joint between a road and a bridge, a viaduct or a bridge. between similar building structures through which road traffic is carried out in order to provide suitable driving characteristics and tight expansion joints between the above parts when compensating for the extensions of individual parts due to the rheology of shrinkage of iron-concrete structures and the temperature extensions of structures.

Izum rešuje tehnični problem, kako v vozni ravnini in vodotesno premoščati dilatacijsko fugo med cestnima odsekoma, prednostno mostom in cestiščem, pri čemer se fuga zaradi reologije skrčevanja železobetonskih konstrukcij in temperaturnih razlik oži in širi v predvidenem dimenzijskem območju. Pri tem mora spojnica nuditi za vse predvidene širine dilatacijskih fug enake oz. podobne vozne lastnosti ter pri približno enaki življenjski dobi imeti podobno hitrost obrabe kot okoliško vozišče.The invention solves the technical problem of bridging the expansion joint between the road sections, preferably the bridge and the roadway in the driving plane and sealing the joint due to the rheology of shrinkage of reinforced concrete structures and temperature differences narrows and expands in the intended dimensional range. In doing so, the coupling must offer the same or equal expansion joint widths for all intended expansion joints. similar driving characteristics, and at about the same lifespan, have a similar wear rate as the surrounding carriageway.

V podrobnosti pomeni gornji tehnični problem to, da naj bo spojnica po izumu uporabna za premoščanje različnih širin dilatacijskih fug, ki so potrebne pri različno dolgih premostitvenih objektih, nadalje mora biti vodotesna, da ne prepušča meteorne vode pod vozno ravnino v cestni in podnožni material, mora biti taka, da je nesnaga na cestišču ne poškoduje, da čimbolj ohranja ravnino vozišča in s tem zmanjšuje hrupnost in vibracije na podnožje in kar je bistveno, spojnica mora prenašati s standardi predpisane sile, ki jih povzročajo vozila, in ohranjati obliko ter kotalne in torne lastnosti med vožnjo vozil po njej.In detail, the technical problem above is that the coupling according to the invention should be useful for bridging the different widths of expansion joints required for different long bridging structures, and must be watertight so that it does not allow meteoric water below the running plane into the road and foot material, it must be such as not to cause damage to the road surface, to maintain the level of the road surface as much as possible, thereby reducing noise and vibration to the base and, crucially, the coupling must withstand the prescribed forces exerted by the vehicles and maintain its shape and rolling and friction properties while driving vehicles.

Stanje tehnike je možno spoznati iz niza patentnih spisov, ki so navedeni v nadaljevanju.The prior art can be found in the set of patent files set out below.

Patentni spisi DE 28 34 361, DE 31 04 205, DE 3416 180, DE 34 29 860, DE 36 26 367 in EP 00 12124 navajajo različne izvedbe gumenih profilov za premoščanje ožjih dilatacijskih fug do približno 50 mm, ki se vstavljajo v prilagojene kovinske profile, vgrajene v podnožje cestišča s tem, da je zgornji nivo gumenih profilov poravnan z vozno ravnino.The patent files DE 28 34 361, DE 31 04 205, DE 3416 180, DE 34 29 860, DE 36 26 367 and EP 00 12124 specify various designs of rubber profiles for bridging narrow expansion joints up to about 50 mm, which are inserted into custom metal profiles fitted at the base of the roadway with the upper level of the rubber profiles aligned with the driving plane.

Patentni spisi DE 29 51 613, DE 35 22 864, DT 25 02 731 in EP 04 54 216 prikazujejo različne oblike tesnilnih gumenih profilov, ki se vstavljajo med kovinske nosilne elemente, ki omejujejo nivo in robova vozišča, prav tako za premoščanje ožjih dilatacijskih fug do 80 mm.The patent documents DE 29 51 613, DE 35 22 864, DT 25 02 731 and EP 04 54 216 show the various forms of sealing rubber profiles inserted between the metal supporting elements that limit the level and the edges of the carriageway, also for bridging narrower expansion joints up to 80 mm.

-2Nadaljnjo skupino predstavljajo masivne gumene dilatacijske spojnice, npr. po patentu DE 29 05 888, kamor sodijo tudi gumene dilatacijske spojnice ojačene s kovino, npr. po patentu YU 39087. V to skupino se uvrščajo tudi cestne dilatacijske spojnice po patentu Sl 93 00 536, ki pomenijo uspešno in racionalno rešitev za premoščanje ožjih dilatacijskih fug do 80 mm oz. 100 mm.-2 The following group consists of massive rubber expansion joints, e.g. according to patent DE 29 05 888, which also includes metal-reinforced rubber expansion joints, e.g. according to the patent YU 39087. This category also includes road expansion joints according to the patent Sl 93 00 536, which represent a successful and rational solution for bridging narrow expansion joints up to 80 mm or. 100 mm.

Ostale dilatacijske spojnice, za premoščanje predvsem večjih in največjih dilatacijskih fug nad 100 mm, so glavnične ali pa lamelne konstrukcije, npr. po patentu DE 30 17 048.Other expansion joints, for bridging especially the larger and largest expansion joints over 100 mm, are main or lamellar structures, e.g. according to patent DE 30 17 048.

Tehnična rešitev po patentu Sl 95 00 318 A z uvajanjem dilatacijskih žepov namesto vzdolžnih dilatacijskih kanalov predstavlja novost in napredek v konstrukciji gumenih dilatacijskih spojnic. Izboljšana je ravninskost dilatacijskih spojnic in njihova togost v navpični smeri.The technical solution according to the patent Sl 95 00 318 A by introducing expansion pockets instead of longitudinal expansion ducts represents a novelty and progress in the construction of rubber expansion joints. The straightness of the expansion joints and their rigidity in the vertical direction are improved.

Po znanem stanju niso zadovoljivo rešeni tehnični problemi učinkovitega dilatiranja z ozirom na širino gumenih dilatacijskih spojnic, njihove občutljivosti na mehanske poškodbe in nosilnosti nad dilatacijsko fugo, zlasti pri dilatacijskih spojnicah za premoščanje širših dilatacijskih fug do 160 mm.As is known, the technical problems of effective dilatation have not been satisfactorily solved with regard to the width of the rubber expansion joints, their susceptibility to mechanical damage and the bearing capacity over the expansion joint, especially for expansion joints for bridging wider expansion joints up to 160 mm.

Po izumu je tehnični problem rešen po neodvisnem patentnem zahtevku.According to the invention, the technical problem is solved according to an independent patent claim.

Rešitev tehničnega problema po izumu je v tem, da nova s kovino ojačana gumena dilatacijska spojnica skupaj s prilagojenim jeklenim podnožjem celostno rešuje vsa trdnostna, tesnilna, vgradna in vzdrževalna vprašanja, pri čemer je osnovna gumena enota dilatacijske spojnice sestavljena iz dveh prednostno polnih vzdolžnih nosilnih jeklenih profilov, ki sta med seboj povezana z gumo, v kateri so z zgornje in s spodnje strani zaporedno razporejeni navzgor in navzdol usmerjeni dilatacijski žepi, prednostno v obliki črke V z zaokroženimi robovi, katerih skupni dilatacijski preseki so po celotni višini in dolžini dilatacijske spojnice približno konstantni. Dilatacijski žepi so v tlorisu dilatacijske spojnice prednostno v obliki črk I ali V, s trapezno oblikovanimi stranicami ob vzdolžnih jeklenih nosilcih, njihov kot napram vzdolžnim jeklenim nosilcem pa naj ne bi bil manjši od 10° in ne večji od 80°, prednostno približno 30°.The solution to the technical problem according to the invention is that the new metal-reinforced rubber expansion joint, together with the customized steel base, completely resolves all strength, sealing, installation and maintenance issues, the basic expansion joint rubber unit consisting of two preferably full longitudinal bearing steel profiles, interconnected by rubber, in which the expansion pockets are arranged upwards and downwards in sequence from the top and the bottom, preferably in the form of a letter V with rounded edges, whose total expansion sections are approximately the entire height and length of the expansion joint constant. Expansion pockets are preferably in the form of expansion joints in the form of letters I or V, with trapezoidal shaped sides along the longitudinal steel beams, and their angle to the longitudinal steel beams should not be less than 10 ° and not more than 80 °, preferably about 30 ° .

Osnovna gumena enota dilatacijske spojnice se v skladu z izumom za najmanjšo dilatacijsko kapaciteto skozi vzdolžne nosilne jeklene profile neposredno privijači na jekleno podnožje dilatacije, za večje širine dilatacijskih fug pa se sestavlja modulno, pri čemer se hrbtne ploskve vzdolžnih nosilnih jeklenih profilov osnovnih enot med seboj lepi prednostno z epoksidnimi lepili ter po potrebi dodatno vari. Na jekleno ali betonirano podnožje se pritrjujeta samo zunanja jeklena profila sestavljene dilatacijske spojnice, medtem ko je sredinski del sestavljene dilatacijskeIn accordance with the invention, the base expansion joint of the expansion joint is screwed directly onto the steel base of the expansion joint through the longitudinal bearing steel profiles, and for larger widths of expansion joints it is assembled modularly, with the back surfaces of the longitudinal bearing steel profiles of the base units adhering to each other preferably with epoxy adhesives and optionally boiled. Only the outer steel profiles of the compound expansion joint are fixed to the steel or concrete base, while the central part of the compound expansion joint is

-3spojnice prosto plavajoč.-3 couplings floating freely.

Pri sestavljenih dilatacijskih spojnicah dajejo dilataciji nad dilatacijsko fugo podporo v ravnini neasfaltiranega premostitvenega objekta prečni prednostno polni jekleni nosilci, ki so prednostno nameščeni centrično z ozirom na dilatacijsko spojnico in pri dilatiranju objekta drsijo po odprtinah v jeklenem ali betoniranem podnožju.For compound expansion joints, expansion joints over the expansion joint are supported in the plane of the unpaved bridging structure by a transverse preferentially filled steel girder, preferably centrally positioned relative to the expansion joint and sliding through the openings in the steel or concrete base when dilating the joint.

Podaljševanje sestavljenih dilatacijskih spojnic poteka s spajanjem osnovnih enot prednostno nad prečnimi jeklenimi nosilci z zamikom osnovnih enot, kar povečuje kompaktnost sestavljene dilatacijske spojnice, medtem ko za centričnost prečnih jeklenih nosilcev poskrbijo čepi, ki gibljivo povezujejo središčni ali pa njemu bližnji sestavljeni vzdolžni nosilec sestavljene dilatacije s prečnimi jeklenimi nosilci podnožja.The extension of the compound expansion joints is done by joining the base units, preferably over the transverse steel beams, with the displacement of the base units, which increases the compactness of the joint expansion joints, while the centrality of the transverse steel beams is provided by plugs that flexibly connect the central or adjacent longitudinal beams of the compound expansion joint transverse steel base supports.

Izum bo podrobneje opisan na osnovi izvedbenih primerov in risb, ki prikazujejo:The invention will be described in more detail based on embodiments and drawings showing:

sl.1 Dilatacijska spojnica z osnovno gumeno enoto po prvem izvedbenem primeru v prerezu, sl.2 Guma dilatacijske spojnice po prvem izvedbenem primeru v tlorisu, sl.3 Sestavljena dilatacijska spojnica po drugem izvedbenem primeru v prerezu, sl.4 Guma sestavljene dilatacijske spojnice po drugem izvedbenem primeru v tlorisu.Fig.1 Expansion joint with basic rubber unit according to the first section in cross section, Fig.2 Rubber expansion joint after first execution in cross section, Fig.3 Compound expansion joint according to the second section in cross section, Fig.4 Rubber composite expansion joint according to the second embodiment in the floor plan.

V prvem izvedbenem primeru po sl.1 in sl.2 je opisana najmanjša možna enota po izumu.In the first embodiment of FIGS. 1 and 2, the smallest possible unit of the invention is described.

Osnovna gumena enota 1 cestne dilatacijske spojnice po izumu, v izvedbenem primeru preseka 200x65 mm, se za dilatacijsko zmogljivost 60 mm po prvem izvedbenem primeru sestoji iz gume in dveh vzdolžnih jeklenih nosilcev 2, dimenzij 40x60 mm, med katerima se po preseku nahajajo zaporedno navzgor usmerjeni dilatacijski žepi 3 in navzdol usmerjeni dilatacijski žepi 4 v obliki črke V z zaokroženimi robovi, katerih višina je približno enaka njihovi dvakratni širini in ki ustvarjajo med seboj gumeno pregrado 5 debeline približno 8 mm. V tlorisu so dilatacijski žepi 3 in 4 tudi v obliki črke V, prav tako z zaokroženimi robovi, vendar z nekoliko manjšim razmerjem med višino in širino ter trapezno prisekanimi stranicami 6 ob vzdolžnih jeklenih nosilcih 2. Navzgor usmerjeni dilatacijski žepi 3 in navzdol usmerjeni dilatacijski žepi 4 so med seboj vzporedni. Osnovna gumena enota 1 je skozi vzdolžna jeklena nosilca 2 z jeklenimi vijaki 7 privijačena na jekleno podnožje 8, ki se ga v nadaljevanju z distančniki nastavi na s projektom na predvideno širino dilatacijske fuge 9 ter na terenu privari na jekleni armaturi obrežne in/oz. premostitvene konstrukcije ter podlije z betonom. Za preprečenje zamašitev dilatacijskih žepov, kljub njihovi samočistilni V obliki, se zgornje dilatacijske žepe 3 že vgrajene dilatacijske spojnice prednostno napolni prednostno s samoreagirajočo elastično stisljivo izravnalno maso na osnovi zračnihThe basic rubber unit 1 of the road expansion joint according to the invention, in the 200x65 mm cross-sectional embodiment, consists of a rubber and two longitudinal steel beams 2, 40x60 mm in diameter for the expansion capacity of 60 mm according to the first embodiment, two consecutively oriented upstream of the cross-section. expansion pockets 3 and downward-facing V-shaped expansion pockets 4 with rounded edges, the height of which is approximately twice their width and which create a rubber barrier 5 of about 8 mm in thickness. The floor plan also has V-shaped expansion pockets 3 and 4, also with rounded edges, but with a slightly smaller height-to-width ratio and trapezoidly cut sides 6 along longitudinal steel beams 2. Upward expansion joints 3 and downward expansion pockets 4 are parallel to each other. The basic rubber unit 1 is screwed onto the steel base 8 through the longitudinal steel bracket 2 by means of steel screws 7, which is further adjusted by the spacers to the intended width of the expansion joint 9 with the spacers and welded on the steel armature of the riparian and / or. bridging structures and covered with concrete. To prevent clogging of the expansion pockets, despite their self-cleaning V-shape, the upper expansion pockets 3 of the already installed expansion joints are preferably pre-filled with a self-reactive elastic compressible air-based leveling compound

-4vključkov, kar prispeva k še udobnejšemu prevozu preko dilatacijske spojnice in njenemu manjšemu vzdrževanju. Seštevki prostih presekov vseh dilatacijskih žepov 3 in 4 po celotni višini in dolžini osnovne gumene enote 1 so približno enaki in konstantni. V tlorisu ostri kot, ki ga dilatacijski žepi 3 in 4 oklepajo proti vzdolžnim jeklenim nosilcem 2 ni manjši od 10° in ne večji od-4 inclusions, which contributes to an even more comfortable transport through the expansion joint and its lower maintenance. The sums of the free cross sections of all expansion pockets 3 and 4 along the entire height and length of the base rubber unit 1 are approximately the same and constant. In the plan, the sharp angle enclosed by the expansion pockets 3 and 4 against the longitudinal steel beams 2 is not less than 10 ° and not greater than

80°, prednostno približno 30°.80 °, preferably about 30 °.

V drugem izvedbenem primeru po sl. 3 in sl. 4 je opisana cestna dilatacijska spojnica za širše dilatacijske fuge, ki vključuje sestavljanje osnovnih gumenih enot in premoščanje dilatacijskih fug.In another embodiment of FIG. 3 and FIG. 4 describes a road expansion joint for wider expansion joints, which involves assembling basic rubber units and bridging expansion joints.

Cestna dilatacijska spojnica po izumu je po drugem izvedbenem primeru za dilatacijsko zmogljivost 240 mm sestavljena iz štirih osnovnih gumenih enot 1 z dilatacijsko zmogljivostjo 60 mm, ki se na jeklenem podnožju 8 med seboj po hrbtnih stranicah vzdolžnih jeklenih nosilcev 2 zlepijo med seboj prednostno z reakcijskim epoksidnim lepilom. Jekleno podnožje 8 ima v dilatacijski fugi 9 med obema kotnikoma na vsakih 750 mm nameščen prosto plavajoč prečni jekleni nosilec 10 z zgoraj zaobljenimi robovi, kar mu omogoča znotraj odprtin v podnožju 11 optimalno prilagajanje ravninama betoniranega objekta. Za centričnost vsakega prečnega jeklenega nosilca 10 poskrbi centrirni čep 12, ki gibljivo povezuje vsaj enega od sredinskih sestavljenih dvojnih vzdolžnih jeklenih nosilcev 13 s prečnim jeklenim nosilcem 10, preseka 50x50 mm. Osnovne gumene enote 1 imajo zaporedno navzgor usmerjene dilatacijske žepe 3 in navzdol usmerjene dilatacijske žepe 4, ki so v tlorisu prednostno v obliki črke I s trapezno prisekanimi stranicami 6 ob vzdolžnih jeklenih nosilcih 2 in ki so med seboj usmerjeni zrcalno ali vzporedno, odvisno od želenih napetostnih stanj in kota dilatacijske spojnice glede na os premostitvenega objekta. Na jekleno podnožje 8 sta skozi vzdolžna jeklena nosilca 2 privijačena z vijaki 7 samo skrajna enojna vzdolžna jeklena nosilca sestavljene dilatacijske spojnice, medtem ko so vsi ostali dvojni med seboj zalepljeni prosto plavajoči. Vzdolžni spoji osnovnih gumenih enot 1 so prednostno izvršeni nad prečnimi jeklenimi nosilci 10 pri čemer je eden od med seboj zlepljenih dvojnih vzdolžnih jeklenih nosilcev 13 neprekinjen.According to a second embodiment, the road expansion joint of the invention for a 240 mm expansion capacity consists of four basic rubber units 1 with a expansion capacity of 60 mm, which are bonded to each other preferably by the reaction epoxy on the steel base 8 along the back sides of the longitudinal steel supports 2. glue. In the expansion joint 9, the steel base 8 has a freely floating transverse steel bracket 10 with rounded edges mounted every 750 mm between the two angles, allowing it to optimally adapt to the planes of the concrete object inside the holes in the base 11. The centricity of each transverse steel girder 10 is provided by the centering pin 12, which flexibly connects at least one of the centered composite double longitudinal steel girders 13 to the transverse steel girder 10, with a cross section of 50x50 mm. The basic rubber units 1 have successively upwardly expanding pockets 3 and downwardly expanding pockets 4, preferably in the form of a letter I with trapezoidally inclined sides 6 along the longitudinal steel beams 2 and oriented in a mirror or parallel direction, depending on the desired voltage states and angle of expansion joint relative to the axis of the bridging object. Only the extreme single longitudinal steel beams of the composite expansion joint are screwed through the longitudinal steel beams 8 through the longitudinal steel beams 8, while all other double ones are glued freely floating. The longitudinal joints of the basic rubber units 1 are preferably made over the transverse steel beams 10 with one of the double bonded longitudinal steel beams 13 interrupted.

Odprtine v podnožju 11 cestne dilatacijske spojnice so lahko zalite v ravnini betonske konstrukcije gradbenega objekta. Sestavljena gumena dilatacija je z vijaki 7 skozi skrajna zunanja vzdolžna jeklena nosilca 2 privijačena v jeklena sidra, ki so mehansko vkleščena ali/in z reakcijskimi smolami zalita v betonsko konstrukcijo.The openings in the base 11 of the road expansion joint can be cast in the plane of the concrete structure of the building. The compound rubber expansion joint is screwed through the outer outer longitudinal steel beams 2 through screws 7 into steel anchors which are mechanically engraved or / and poured into the concrete structure with the reaction resins.

Vsi jekleni nosilni elementi so ustrezno dimenzionirani glede na obremenitve, ki jih predpisujejo standardi in se izvajajo pri preiskavi.All steel load cells are dimensioned appropriately according to the loads prescribed by the standards and carried out during the investigation.

Claims

PATENT APPLICATIONS

1. A road expansion joint for bridging a joint joint between a road and a bridge, a viaduct and other road construction structures, characterized in that the basic rubber unit (1) is made of rubber in which upwardly directed expansion joints are arranged in cross section. pockets (3) and downward-facing expansion pockets (4), parallel to each other, preferably V-shaped with rounded edges, forming a rubber barrier (5) and preferably in I-V or V-shaped with rounded edges and the trapezoidal trunks (6) at their outer edges and two longitudinally preferentially filled steel supports (2) through which the base rubber unit (1) is screwed to the base (8) by means of screws (7), to bridge wider expansion joints fug road dilatation joint composed of gluing and ev. additional welding of the backs of the longitudinal steel beams (2) of the base rubber units (1).

Road expansion joint according to claim 1, characterized in that the sums of the free cross sections of all the expansion pockets (3,4) are approximately equal and constant throughout the height and length of the basic rubber unit (1) and that the angle is sharp expansion pockets (3,4) armor against longitudinal steel beams (2), not less than 10 ° and not more than 80 °, preferably about 30 °.

Road expansion joint according to claim 1, characterized in that the expansion pockets (3) are empty.

Road expansion joint according to claim 1, characterized in that the expansion pockets (3) are filled with a self-reactive elastic compressible counterweight based on air inclusions.

5. Road expansion joint according to claim 1, characterized in that, to bridge the wider expansion joints, the expansion joint is transversely assembled by gluing and ev. additional welding of the backs of the longitudinal steel beams (2) of the base rubber units (1) supported in the plane of the concrete structure in the expansion joint by the transverse steel beams (10) floating freely in the area of the openings in the base (11) and centered by them movable pin (12) connections to the most central double longitudinal steel beam (13), with only the extreme outer single longitudinal beams (2) being screwed to the steel base (8) by screws (7) through the longitudinal steel beams (2).

Road expansion joint according to claim 1, characterized in that the expansion pockets (3,4) are directed in the same direction, parallel or mirrorwise, as well as in the opposite direction, with respect to the direction of the longitudinal steel beams (2). the joints of the base rubber units (1) are preferably made over the transverse steel beams (10) by having one of the double bonded longitudinal steel beams (13) interconnected.

-67. Road expansion joint according to claim 1, characterized in that the openings in the base (11) are sealed in the plane of the concrete structure of the building and the compound rubber expansion joint is screwed (7) through the extreme outer longitudinal steel beams (2) screwed into steel anchors, which are mechanically adhered or / and poured into the concrete structure with the reaction resins.