EP1355009A2 - Bridging device for joints - Google Patents

Abstract

Bridging device for joint gaps (1) between construction components (2, 3), especially bridge components, comprises an extending joint construction (4) bridging the joint gap and allowing positional changes of the components relative to each other within defined first limits. A safety device (12, 15) allows the components to change position within second limits which do not reach the first limits without the components and/or joint construction separating. The safety device has at least two elements connected to each other which separate when a defined limit is exceeded. One element is fixed to one of the components whilst the other element is part of the joint construction.

Description

The present invention relates to a bridging device for joint gaps according to the preamble of claim 1.

For buildings that exceed certain dimensions, it is necessary to compensate of thermal expansions to provide expansion joints to destroy the Avoid structures. This applies in particular to bridge structures where the thermal Expansions can assume enormous proportions. It is therefore known, in particular Corresponding bridging devices for joint gaps for bridge structures between parts of the building, in particular bridge parts. For example EP 0 821 104 discloses such a bridging device. The in EP 0 821 104 bridging device has a safety device that it in addition to compensating for normal dimensional changes, with extreme Bridging device loads, e.g. during an earthquake, the elaborate To protect expansion joints and edge structures from destruction.

Although the bridging device described in EP 0 821 104 fulfills this task reliably fulfilled, it has the disadvantage that the bridging device or Expansion joint construction after triggering the safety device is no longer for the intended purpose Use is suitable because the expansion joint construction is too strong Reducing the width of the joint gap, e.g. B. by an earthquake, the expansion joint construction out of the joint gap. This safety device also enables no compensation from other excessive, normal measurements Movements of the structures forming the joint gap to one another, for example one over the permissible extent of an enlargement of the joint gap width or a transverse one Movement of the building parts to each other, which leads to an offset of the building parts of the joint gap leads.

It is therefore the object of the present invention to provide a bridging device create, which avoids these disadvantages of the known bridging devices, and in particular to provide a bridging device that secures the expansion joint structures or edge structures at the joint gap before destruction when exceeded of certain movement limits of the adjacent building parts while maintaining the intended use allows, different different Movements and border crossings should be secured.

This object is achieved with a bridging device with the features of Claim 1. Advantageous refinements are the subject of the dependent claims.

The present invention is based on the idea of using the bridging device to provide a safety device which, if a certain limit load is exceeded or of movement limits can be divided into two mutually movable elements, those under the influence of excessive stress in a certain defined way move towards each other and thus exceed the movement limits of the joint gap compensate for building parts. To the function of the bridging device or to maintain the expansion joint construction even in such an emergency situation, the expansion joint construction must be in place in the joint gap as far as possible remain so that it is necessary according to the invention, which after exceeding the On the one hand, limit loads of mutually movable elements of the safety device one of the structural parts and the other to be arranged on the expansion joint construction, i.e. the safety device between expansion joint construction and one of the building parts provided. In this way it is possible to construct the expansion joint or Edge structures at the joint gap even when the permissible movement limits are exceeded to protect the adjacent parts of the building, even if this is accepted It must be ensured that the safety device may be separated into two parts is destroyed. However, the damage is defined here within narrow limits held, and restoration of the bridging device is simple Replacement of the safety device possible. In addition, this form of design offers a safety device on a bridging structure has the advantage that different Movement types can be compensated.

According to a first aspect of the invention, the safety device is constructed in such a way that they at least one rail and a slide or rail and slide sections comprises, wherein the slide is normally arranged in the rail, but after Exceeding a limit load, e.g. B. in the event of an earthquake, can be moved to slide movements, in particular transverse movements between building parts, in particular Bridge parts to compensate. Because here again an element, i.e. the rail or the Sled, arranged on the building part, while the other element of the safety device the expansion joint construction takes up or is part of it is a compensation here of in particular transverse movements between the building parts possible without there is a destruction of the bridging device or expansion joint construction.

Realization of the safety device by means of a rail and one that can be moved therein Sledge has the advantage that even if the limit load is exceeded no significant damage to the safety device must occur. For example, it is advantageous to generate a certain limit load the slide in the Clamp the rail so that a certain frictional force between the slide and the rail is present, which corresponds to the limit load, so that below the limit load no relative movement between rail and slide is possible. Clamping the Sliding into the rail can take place, for example, in that elastically clampable Elements are arranged between the rail and slide, which have the appropriate frictional force between slide and rail. These are preferably clamping elements designed as a plain bearing, so that the elastic Elements cannot be destroyed by sliding the slide in the rail.

Alternatively or additionally, of course, other measures for generating a Movement lock for the slide in the rail hit before the limit load is reached For example, one or more stop devices could be provided in the rail that can only be overcome when a limit load is exceeded. Preferably, the stop devices could be operated by the rail itself by e.g. a predetermined breaking point is provided on the stop device.

In order to be able to trigger the safety device when corresponding lateral forces occur, it is advantageous to provide a trigger mechanism which is suitable for transmitting the Shear forces on the safety device, i.e. rail and slide, ensures. For example In the case of an expansion joint construction, the trusses bridging the joint gap and the joint gap covering middle and edge profiles, which in turn the trusses are arranged, corresponding stop elements on the central profiles or edge profiles be provided, which in a freely selectable movement game of the Middle profiles in the direction of the joint longitudinal axis come into mutual abutment and over the trusses transfer the transverse forces to the safety device. Depending on the version the expansion joint construction, a stop element may be sufficient, such as in the swiveling cross beam construction described later, in which a stop element is sufficient on a central profile that interacts with an adjacent edge profile.

In a particularly advantageous embodiment of the safety device for compensation of sliding movements or transverse movements between bridge components the slide comprises a wedge plate, which is preferably below the edge profile beam or the truss holder is arranged so that an oblique arrangement over the wedge plate the edge profile of the expansion joint construction with respect to the horizontally aligned Rail is made possible. This advantageous embodiment enables the transversal protection can also be used for bridges that are one-sided or two-sided across Direction of travel are inclined to allow rainwater to drain off the road.

In such a construction, the rail and the edge construction are preferred made up of two parts. The second rail is used, in particular, one on the Carriage and thus the first edge construction movably arranged in the first rail the edge profile beam in the vertical direction before lifting or in the horizontal direction along the longitudinal axis of the bridge at the separation from the stationary second edge construction of the bridge component. The two rail parts are therefore preferably in particular vertically evenly spaced from each other, the upper second rail part is gripped by a sled part and over a corresponding lift-off protection, for example in the form of holding elements mutual withdrawal is secured. Is then preferably between the stationary second edge construction and the first edge construction movable with the slide a sealing profile is provided, which on actuation of the safety device Torn from its position due to the oblique design of the movable edge construction would. Additional damage to the edge construction will occur with this advantageous embodiment of the invention due to the movably arranged edge construction do not take place.

According to a second aspect of the present invention, the security device a basic structure enclosing a certain volume, in particular cuboid on, with the elements initially firmly connected to each other after crossing a defined limit load are movable relative to one another, preferably by two essential L-shaped profile shapes are formed, which after exceeding the limit load can move against each other so that the enclosed volume is consumed the two opposite sides of the cuboid will face each other move. This is compensation for an excessive reduction in the joint gap possible without the expansion joint construction being pushed out of the joint gap got to. Rather, the space that the in particular rectangular safety device normally takes, provided in an emergency for the expansion joint construction. This in turn provides a simple and inexpensive way to Expansion joint construction or the edge construction before damage in the event of excessive To protect movement of the building parts adjacent to the joint gap.

Since it is advantageous to move the elements of the safety device in a defined manner To run in a way, can with an expansion joint construction that bridges the gap Traverses has, advantageously be provided that the traverses pierce the parallelepiped-shaped safety device, so that the trusses simultaneously also as guides for the movement of the two L-shaped elements of the safety device serve after exceeding the limit load.

The L-shaped elements of the safety device can be made from any suitable Components, e.g. full-surface steel profiles, lattice-like structures, steel sheets, Edge profile elements, edge profile beams, etc. formed or composed of these his.

According to a third aspect of the present invention, the safety device is as Part of the expansion joint construction formed, the expansion joint construction trusses includes that bridge the joint gap. The two elements of the safety device, which are firmly connected with each other under normal load, but which are exceeded when the Separate limit loads from each other and move towards each other in a defined manner can, on the one hand, by anchoring the trusses to a part of the building and on the other hand formed by the truss body of the trusses. The security device However, this is only realized with trusses that are below a certain one Minimum length are, which in turn in relation to the maximum permissible joint gap widths stands. Limit these short trusses, which are below a certain minimum length namely usually the maximum width of the joint gap. However, they also exist still trusses of greater length, so according to the idea of the present invention Removal of the short crossbeams from their anchoring in the building is accepted if there is still a sufficient number of long trusses, that of the bridging device give a certain minimum stability.

Here it is particularly advantageous if the trusses with a short length that result from release the anchorage when the limit load is exceeded, the one opposite the anchorage Stabilize side, because in addition to the lower number of load-bearing trusses also the less overlap of the trusses with the part of the structure on which they rest, may be critical to the stability of the bridging device. This can be done in easier Can be achieved in that a driver device is provided, which at Exceeding the permissible maximum gap between the short trusses with one Takes part of the building. This is preferably done by truss plates attached to the Are arranged end of the traverse, which is opposite the anchorage, and which in their Diameters are designed so that they stop for example with the edge profile of the the expansion joint construction side opposite the anchoring.

The construction of a bridging device with a safety device in the above Wise has the particular advantage that the longer trusses that are used during the emergency situation cannot be released from its anchorage, especially together with the cover profiles arranged on the trusses as guide elements for the from the Anchoring loosened trusses and thus after a brief enlargement the joint gap also ensures that the expansion joint construction is not destroyed when the joint gap closes again. This also applies to the configurations the safety device according to the invention with regard to the other emergency situations, transverse movements or excessive closing of the joint gap.

It is of course particularly advantageous to use one or more, in particular all, embodiments the safety device according to the invention in a bridging device realize to meet all possible loads. Here it has particular also proven, different safety devices separately from each other at different Arrange sides of the joint gap.

Fig. 1

eine Draufsicht auf eine erfindungsgemäße Überbrückungsvorrichtung, bei der der Fugenspalt bei Normalbelastung seine maximal erreichbare Breite erreicht hat;

Fig. 2

eine Draufsicht auf die Überbrückungsvorrichtung nach Fig. 1, bei der der Fugenspalt bei Normalbelastung seine minimale Breite aufweist;

Fig. 3

eine Schnittansicht durch die Überbrückungsvorrichtung nach Fig. 1 mit maximaler Fugenspaltbreite in der Normalbelastung;

Fig. 4

eine Schnittansicht der Überbrückungsvorrichtung aus Fig. 2 mit einer für die Normalbelastung minimalen Fugenspaltbreite;

Fig. 5

die Überbrückungsvorrichtung gemäß Fig. 1 bei einer transversalen Belastung;

Fig. 6

eine perspektivische Darstellung der Sicherheitseinrichtung der Überbrückungsvorrichtung aus Fig. 1 zur Kompensation einer transversalen Belastung;

Fig. 7

eine Draufsicht auf die Überbrückungsvorrichtung aus Fig. 1 mit betätigter Sicherheitseinrichtung bei einer Unterschreitung der zulässigen minimalen Fugenspaltbreite (Notfall);

Fig. 8

eine Schnittansicht der Überbrückungsvorrichtung aus Fig. 1 im Zustand der Fig. 7;

Fig. 9

eine Draufsicht auf die Überbrückungsvorrichtung gemäß Fig. 1 bei Überschreitung der maximalen Fugenspaltbreite (Notfall);

Fig. 10

eine Schnittansicht der Überbrückungsvorrichtung nach Fig. 1 gemäß dem Zustand der Fig. 9 entlang einer langen Traverse;

Fig. 11

eine Schnittansicht der Überbrückungsvorrichtung nach Fig. 1 gemäß dem Zustand der Fig. 9 entlang einer kurzen Traverse;

Fig. 12

eine teilweise Draufsicht auf die Überbrückungsvorrichtung nach Fig. 1 in einem Zustand mit überschrittener maximaler Fugenspaltbreite und transversaler Belastung der Überbrückungsvorrichtung;

Fig. 13

eine teilweise Ansicht der Überbrückungsvorrichtung aus Fig. 1 von unten, bei der Anschlagelemente des Auslösemechanismus für die transversale Sicherheitseiririchtung zu sehen sind;

Fig. 14

in den Teilbildern (a) und (b) einen Schnitt des Randbereichs der Dehnfugenkonstruktion mit der Randkonstruktion entlang der Brückenlängsachse am Rand der Brücke (Teilbild (a)) und der Mitte der Brücke (Teilbild (b)); und in

Fig. 15

in den Teilbildern (a) bis (c) eine Seitenansicht (a) und zwei Schnittansichten entlang der Schnittlinien A-A (b) und B-B (c) aus Fig. 14 (a)

Further advantages, characteristics and features of the present invention will become apparent from the following detailed description of two exemplary embodiments. The accompanying drawings show in

Fig. 1

a plan view of a bridging device according to the invention, in which the joint gap has reached its maximum achievable width under normal load;

Fig. 2

a plan view of the bridging device of Figure 1, in which the joint gap has its minimum width under normal load.

Fig. 3

a sectional view through the bridging device according to Figure 1 with the maximum joint gap width in normal load.

Fig. 4

2 shows a sectional view of the bridging device from FIG. 2 with a joint gap width that is minimal for normal loading;

Fig. 5

the bridging device of Figure 1 with a transverse load.

Fig. 6

a perspective view of the safety device of the bridging device of Figure 1 for compensation of a transverse load.

Fig. 7

a plan view of the bridging device from Figure 1 with the safety device actuated when the permissible minimum gap gap width is undershot (emergency);

Fig. 8

a sectional view of the bridging device of Figure 1 in the state of Fig. 7.

Fig. 9

a plan view of the bridging device of Figure 1 when the maximum joint gap width (emergency).

Fig. 10

a sectional view of the bridging device of Figure 1 according to the state of Figure 9 along a long crossbar.

Fig. 11

a sectional view of the bridging device of Figure 1 according to the state of Figure 9 along a short crossbar.

Fig. 12

a partial plan view of the bridging device according to Figure 1 in a state with exceeded maximum joint gap width and transverse loading of the bridging device.

Fig. 13

a partial view of the bridging device of Figure 1 from below, with the stop elements of the trigger mechanism for the transverse safety device can be seen.

Fig. 14

in sub-images (a) and (b) a section of the edge region of the expansion joint construction with the edge construction along the longitudinal axis of the bridge at the edge of the bridge (sub-image (a)) and the center of the bridge (sub-image (b)); and in

Fig. 15

in the partial images (a) to (c) a side view (a) and two sectional views along the section lines AA (b) and BB (c) from FIG. 14 (a)

1 shows a bridging device according to the invention, which has a joint gap 1 bridged between building parts 2 and 3. Here, the building part 2, for example the stationary bridgehead and the structural part 3 the movable bridge trailer The bridging device according to the invention, which is shown in Fig. 1, has an expansion joint construction 4, which essentially consists of the carriageway cross members 5a, 5b and the edge traverses 8 and the center profiles 6 arranged thereon.

The ends of the crossbeams 5a, 5b, 8 rest on the structural parts 2 and 3. To the Traverse ends 5a, 5b and 8 are fixed in crosshead connections 13 on the bridgehead ends recorded, the trusses 5a and 5b pivotable about the truss connections 13 are arranged. The other end of the trusses 5a, 5b and 8 is freely movable in truss boxes 7 added, which in the bridge trailer 3 below the top of the bridge, e.g. the roadway, are arranged.

Edge profiles 9 and 11 are on the building-side edges of the expansion joint construction 4 provided that are firmly connected to the building parts 2 and 3. Since the middle profiles 6 Arranged slidably on the crossbeams 5a, 5b and 8 via the holding bracket 14 (see FIG. 3) are, with a special arrangement and construction of the plain bearing between the brackets 14 and the trusses 5a, 5b and 8 ensures that when the trusses are twisted 5a, 5b and 8, the center profiles 6 are arranged at equal distances from one another remains when opening or closing the joint gap, which e.g. through thermal Length changes can be caused by a control mechanism to ensure that the The distances between the center profiles 6 remain uniform (see also EP-B-512 123). How from a comparison of FIGS. 1 and 2 is clear, change in the bridging device, which is shown here during a longitudinal movement of the Building parts 2 and 3 to each other, i.e. across the joint gap, not only the distances of the Middle profiles 6 to each other, but also the crossbeams 5a and 5b change their position with regard to the orientation and the overlap with which they rest on the structural part 3 or protrude into the truss boxes 7.

The operation of the expansion joint construction 4 is also from the sectional views of the 3 and 4 clearly show the states of the expansion joint construction in FIGS. 1 and 2 respectively correspond. In the sectional view of FIG. 3 it is particularly clear how the middle profiles 6 are held on the bracket 14, which encompass the trusses 5. Between the middle profiles 6 sealing profiles 10 are provided, which are the changeable elastic Can adjust distances between the center profiles 6 and for sealing the Groove gap 1 worry. 3 and 4 also become clearly that the edge profiles 9 and 11 in every state of the expansion joint construction 4, that is with a large gap width as well as with a small gap width, stationary with the building parts 2 and 3 are connected.

Although the expansion joint construction described in FIGS. 1 to 4 is already a major change the gap width as well as the transverse offset, are shown in the Embodiment provided additional security devices that are even stronger Allow movement of building parts 2 and 3 to each other. So is on the edge of the bridgehead 2 a transversal safety device 12 is provided, while on the bridge support 3 additionally a upsetting box 15 is arranged. In addition, by training the trusses 5a and 5b of different lengths and their arrangement on truss connections 13 a further safeguard against strong movements of the structural parts 2 and 3 to one another intended. First, however, the securing by means of the upsetting box 15 discussed in more detail.

As can be seen in Fig. 1, the upsetting box 15 is over the entire width of the bridge construction intended. From Fig. 3 it can be seen that the upsetting box on the bridge trailer 3 by a box bottom 18, a box wall 19, a box cover 20 and the edge profile 9 is formed with the edge profile carrier 16, which over the strut 17 is connected to the box bottom 18. Above the box cover 20 is a stuffer box cover 22 provided a smooth transition from the road surface for expansion joint construction 4. The individual parts of the upsetting box 15 can in any suitable manner, e.g. as steel profiles, steel sheets and the like. be realized. To for the trusses to enable access to the truss boxes 7 are in particular on the box wall 19 truss bushings 21 are provided.

The functioning of the upsetting box 15 is clear from FIGS. 7 and 8, which shows the state a maximum reduction in the joint gap 1 between the structural parts 2 and 3 without damaging the expansion joint or edge structures with the exception of the securing device demonstrate. In the plan view of FIG. 7 it is clear here that the carriageway cross members 5a and 5b completely accommodated in the truss boxes 7 in this state are and that the traverse cover 20 of the upsetting box 15 along the road surface has pushed over the truss boxes 7.

In the sectional view of FIG. 8, the clear reduction in the joint gap width 1 can be seen. The upsetting box 15 is substantially smaller in reducing the joint gap width two parts have been split, the cross-section of which is essentially L-shaped Have shape. One element is through the box bottom 18 and the box wall 19 formed, which are fixedly connected to the bridge support 3: the other element, which also has an L-shaped cross-section is formed by the edge profile 9 formed with the edge profile beam 16 and the box cover 20. By reducing the joint gap width were the junctions of the two L-shaped parts, namely the connection of the strut 17 with the box bottom 18 and the interface between Box lid 20 and box wall 19 broken open. After breaking these connections could the upper L-shaped element with the box lid 20 continue in the direction of the Bridge trailer 3 are moved, the box cover 20 is almost parallel to the Top of the bridge, i.e. the road surface, has moved and the upsetting box cover 22 has removed from its position and also part of the road surface. However, further damage to the bridge parts 2 could be caused by the upsetting box 15 and 3 or the expansion joint construction 4 can be avoided.

As already shown in FIGS. 1 to 4, the bridging device according to the illustrated embodiment furthermore a safety device for continued Compensation for excessive transverse movements between the building parts 2 and 3, which is provided with the reference symbol 12 as a transversal protection. 6 shows in a perspective view of a partial view of the transverse locking device 12, which in the consists essentially of a rail 24 and a slide 25 which extends along the Rail can move when a maximum limit load has been exceeded.

The rail 24 consists of an upper part 27, a rear wall 28 and a rail base 29 and a guide plate 30, so that the carriage 25 in the space between the rear wall 28, bottom 29 and guide plate 30 is guided. At the bottom 29 of the rail 24 anchorages 31 are also provided, which securely embed the rail in allow the edge construction of the bridgehead 2. The rail 25 consists of two rods 36 arranged in parallel, which are connected to one another via struts 26. Moreover the carriage 25 has truss receptacles 33 to form the truss connections 13 in which the carriageway traverses 5a, 5b and the edge traverses 8 are received can. A sealing profile receptacle 32 is also provided on the upper part 27.

The carriage 25 is between the upper part 27 and the bottom 29 of the rail 24 by means of elastically clampable slide bearing 35 clamped so that between the lower rod 36 of the carriage 25 and the bottom 29 of the rail 24, a frictional force arises which is the desired one Limit load corresponds. Alternatively or additionally you can use the rail also stoppers can be provided which are under normal load of the bridging device limit the movement of the carriage 25. If the limit load is exceeded the stoppers would then be removed by the carriage 25, e.g. at a predetermined breaking point separated from the rail 24.

In order to trigger a movement of the slide 25 in the rail 24, there are different ones Trigger mechanisms conceivable. On the one hand, the carriageway cross members 5a and 5b of the Expansion joint construction 4 are arranged so that they are in a transversal load Bridging device lead to jamming of the expansion joint construction 4, see above that a transfer of the transverse forces to the transversal lock 12 is possible. alternative it is also conceivable to between the carriageway cross members 5a and 5b or between the Middle profiles 6 in a suitable manner to attach stops when exceeded a certain range of motion also a transfer of lateral forces to the Would enable transversal security 12.

When the transversal lock 12 is triggered, the carriage 25 moves accordingly the acting transverse force in the rail 24 and thus enables a transverse Offset between building parts 2 and 3. This is for example in FIG. 5 shown. 5 is the transverse displacement between the bridgehead 2 and the bridge trailer 3 marked with the reference numeral 23. It should be noted here that the rail 24 does not have to extend over the entire width of the bridge, but rather that individual small sections can be sufficient.

In addition to the load options of the expansion joint construction shown in FIGS. 5 to 8, namely a transverse load as well as a longitudinal load in the way the bridging device enables the gap width to be reduced of the embodiment shown also protection against excessive longitudinal movements of the building parts 2 and 3 to each other, in which the joint gap width increases or exceeds a permissible limit. This is shown in FIGS. 9 to 11.

9 is a plan view of the bridging device according to the exemplary embodiment 1 shows in a state in which the permissible joint gap width 10 and 11 show this state in cross sections along long trusses 5b (FIG. 10) and short trusses 5a (FIG. 11). How 9 that when the maximum permissible joint gap width is exceeded the short carriageway traverses 5a and the edge traverses 8 from the traverse connections 13 removed, while the long trusses 5b are still in the truss connections 13 are included. Although the number of crossbeams is very small and the overlap of the truss support in the truss boxes 7 becomes minimal by stabilizing the expansion joint construction 4 with the short crossbeams 5a the middle profiles 6 ensures sufficient stability of the expansion joint construction 4.

As can be seen in FIG. 10, the are when the maximum joint gap width is exceeded long trusses 5b fully extended from the truss boxes 7, to the extent that that they are just included in the edge profile 9 or in the edge profile beams 16. On the other hand, the long trusses 5b are secure via the truss securing means 34 recorded in the truss connections 13.

However, the short crossbeams 5a (see FIG. 11) are from the crossbeam connections 13 slid out and moved away from them, previously using a truss protection has been removed at the intended limit load. As truss protection 34 all suitable measures are taken, e.g. Safety bolts, stop elements or the like in question. On the other hand, the Short cross member 5a ensures that the short cross member 5a does not come out of the edge profile or the edge profile support 16 can slide out. For example, the short crossbeams 5a crossbeam plates 37 can be provided which have a larger diameter than the short cross members 5a and thus do not pass the edge profile support 16 can. This construction has the advantage that it is sufficient despite a too small number long trusses, e.g. B. for cost or space reasons, maintenance of Use in emergency situations is guaranteed.

12 shows a state of the shown embodiment of the bridging device according to the invention, at which in addition to the exceeded maximum longitudinal Extension of the expansion joint construction 4 additionally a transverse offset 23 of the structural parts 2 and 3 occurs.

Fig. 13 shows a partial bottom view of the bridging device, in which the Stop elements 38 of the release mechanism for the transverse safety device you can see. As can be seen in FIG. 13, depending on the arrangement of the stop elements 38 this when the middle profiles 6 or the edge profiles move in the longitudinal direction of the joint against each other so that in a certain configuration a shear force is transferred to the edge construction or the safety device 12, wherein this is then triggered when a limit load is exceeded.

Another embodiment of the bridging device according to the invention is shown in FIGS 14 and 15 are shown. The embodiment shown in these figures differs differs from the previously described embodiment in that the transverse Security device 12 is modified.

As in FIG. 14 in partial images (a) and (b), the sectional views each transverse to the longitudinal direction of the joint at the edge of the bridge and in the middle of the bridge Transverse lock 12 'on a slide 25, the slide parts 25a and 25b and comprises the movable edge structure 39 and the wedge plate 41. The wedge plate 41 is on arranged the slide part 25a, which is in the rail part 24a in a horizontal Level can move.

As can be seen in FIG. 15 in sub-images a) and b), the height of the wedge plate increases 41 from the edge of the bridge to the middle of the bridge, so that there is a wedge shape. includes the expansion joint construction two wedge plates 41, this results in cross section in the bridge a roof shape, with the sides of the road sloping slightly towards one side are so that water can run off. However, it is also conceivable that the expansion joint construction only comprises a wedge plate 41, so that the surface of the bridge of is slightly inclined from one edge to the other edge of the bridge, here also correspondingly the water can drain off. The invention shown in Figs. 14 and 15 Bridging device is for both the one and the other embodiment suitable for bridges.

As can also be seen in partial images (a) and (b) in FIG. 15, the wedge plate 41 is similar the oblique arrangement of the movable edge structure 39 with respect to the horizontal out. The slide part 25a can thus also be arranged with an oblique arrangement of the edge profile (11). can be moved horizontally in the rail part 24a.

Because when the transverse safety device is actuated by the inclined road surfaces there is a height offset between the mutually movable parts comes, is in this embodiment of the bridging device according to the invention a first movable edge structure 39 is provided, in which the cross members 5 and the Edge profile 11 are added to the edge profile carrier 16. So that the moving Edge structure 39 is stabilized in the joint transverse direction, is a second rail part 24b provided, which is arranged on a second, fixed edge structure 40. In the second rail part 24b, which is hook-shaped in the embodiment shown is engaged, also a hook-shaped slide part 25b, so that in Joint transverse direction results in a toothing. Set the rail part in the longitudinal direction of the joint 24b and the slide part 25b, however, again a horizontally movable pair of rails and slides represents.

To ensure that the movable edge structure 39 is not in the vertical direction can be lifted, or that the mutual locking of the rail part 24b and the slide part 25b releases, a lift-off device 42 is provided, which is simpler Way consists of a stop element, which in the way above the slide part 25b is attached so that it can no longer be removed from the rail part 24b.

Since also the rail-slide pair of the slide part 25b and the rail part 24b are different Moving in a horizontal plane, the slide part 25b is at a different distance arranged from the upper edge of the movable edge structure 39. Will now Transverse safety device 12 'triggered in an emergency, the carriage 25 moves with the slide parts 25a and 25b, the wedge plate 41 and the movable edge construction 39 compared to the stationary edge structure 40 and the rail parts 24a and 24b. The movement leads to a height offset between the fixed edge construction 40 and the movable edge structure 39, so that between the stationary Edge structure 40 and the movable edge structure 39 arranged sealing profile accordingly distorted and at worst pulled out of the anchorage. So that will in the worst case, however, the sealing profile 10 between the fixed edge structure 40 and movable edge structure 39 destroyed while protecting the rest of the edge structure is. The embodiment of the type shown in FIGS. 14 and 15 also has advantages with regard to the assembly, since the movable edge construction 39 is already in the factory with the Expansion joint construction can be built together. The entire expansion joint construction then, after arranging the rail parts 24a and 24b, only has to be lifted into them are, then the anti-lift 42 is then attached and the sealing profile 10 is knotted.

To ensure that the movable edge structure 39 is not in the vertical direction can be lifted off, or that the mutual locking of the rail part 24 b and the slide part 25 b solves a lift 42 is provided, which is easier Way consists of a stop element, which in the way above the slide part 25b is attached so that this can not only be removed from the rail part 24b.

LIST OF REFERENCE NUMBERS

1

joint gap

2

bridgehead

3

bridge trailer

4

expansion joint

5

Traverse road

5a

Short cross-beam

5b

Long carriageway crossbar

6

agent profile

7

Travers box

8th

Traverse edge

9

Edge profile (on the bridge support)

10

weatherstrip

11

Edge profile (at the bridgehead)

12, 12 '

Transversalsicherung

13

Travers connection

14

profile support

15

Fuse box

16

Edge profile carrier

17

brace

18

box bottom

19

chest wall

20

box cover

21

Travers implementation

22

Stuffer box cover

23

Transverse shift

24

rail

24a, b

rail parts

25

carriage

25a, b

sled parts

26

strut

27

top

28

rear wall

29

ground

30

baffle

31

anchoring

32

Seal profiling

33

Travers recording

34

Travers assurance

35

bearings

36

Rod

37

Travers plate

38

stop elements

39

movable edge construction

40

stationary edge construction

41

wedge plate

42

lift-off

Claims (22)

Bridging device for joint gaps (1) between building parts (2, 3), in particular bridge parts, with an expansion joint construction (4) bridging the gap (1), the expansion joint construction (4) permitting changes in position of the building parts (2, 3) relative to one another within certain first limits .
marked by
a safety device (12; 15; 34, 5a) which enables a change in position of the building parts (2, 3) relative to one another within second limits which exceed or fall below the first limits without causing a separation between the building parts which destroys the function of the bridging device (2, 3) and / or expansion joint construction (4), the safety device (12; 15; 34, 5a) comprising at least two elements which are firmly connected to one another and which, after exceeding a defined limit load, are separate and movable with respect to one another in a defined manner, and one element being fixed to one of the structural parts (2, 3), while the other element is part of the expansion joint structure (4) or accommodates it. Bridging device according to claim 1,
characterized in that
the two elements of the safety device (12) are formed by a rail (24) and a slide (25), the slide (24) being movable in the rail (25) after the limit load has been exceeded in order to compensate for sliding movements, in particular transverse movements between bridge parts , Bridging device according to claim 2,
characterized in that
the slide (25) is clamped in the rail (24), in particular by means of elastically clampable slide bearings (35) which are arranged between the rail (24) and slide (25), preferably in such a way that the clamping force is a frictional force between the slide ( 25) and rail (24) which corresponds to the limit load. Bridging device according to claim 2 or 3,
characterized in that
the slide comprises at least one wedge plate (41), so that an edge profile (11) with an edge profile support is arranged obliquely to the horizontal in an edge construction which is movable with the slide. Bridging device according to one of claims 2 to 4,
characterized in that
the rail (24) consists of two spatially separate parts (24a, 24b), each rail part (24a, 24b) being arranged horizontally. Bridging device according to one of Claims 2 to 5,
characterized in that
the slide (25) is wedge-shaped or double-wedge-shaped in cross section, and is displaceably mounted in both rail parts (24a, 24b). Bridging device according to one of claims 5 or 6,
characterized in that
the two rail parts (24a, 24b) are arranged vertically at a constant distance from each other. Bridging device according to one of claims 2 to 7,
characterized in that
the slide (25) comprises an edge construction (39) which is movable with the slide and which is inclined relative to the rail (24) or the rail parts (24a, 24b). Bridging device according to one of claims 2 to 8,
characterized in that
a sealing profile (10) is arranged between a movable edge construction (39) arranged on the slide (25) and a stationary edge construction (40). Bridging device according to one of claims 2 to 9,
characterized in that
the rail (24) is fixed to a structural part (2, 3) and the slide (25) receives the expansion joint construction (4). Bridging device according to one of claims 2 to 10,
characterized in that
the rail (24) has at least one stop which limits the movement of the slide (25) under normal load and is separated from the rail (24) when the slide (25) exceeds a limit load, preferably at a predetermined breaking point. Bridging device according to one of the preceding claims,
characterized in that
A trigger mechanism for actuating the safety devices (12) is provided, in particular a trigger mechanism for transferring transverse forces along the longitudinal direction of the joint, the trigger mechanism preferably being formed by one or more stop elements (38) which are located on the central profiles (6) and / or edge profiles ( 9, 12) are arranged. Bridging device according to claim 1,
characterized in that
the safety device (12) comprises a housing (15) which can be divided into at least two elements and surrounds a cavity, the two elements being designed as profile shapes which move towards one another when the limit load is exceeded and the cavity is consumed. Bridging device according to claim 1 or 13,
characterized in that
the safety device (15) has a cuboid basic structure, the two elements of the safety device (15) being formed from two essentially L-shaped profile shapes, the two L-shaped profile shapes being able to move towards one another after a certain limit load has been exceeded, in this way that opposite sides of the cuboid basic structure move towards each other. Bridging device according to claim 13 or 14,
characterized in that
one profile shape is fixed to a structural part (2, 3), while the other profile shape accommodates the expansion joint construction (4), in particular one leg of the preferably L-shaped profile shape comprises an edge profile (9) of the expansion joint construction (4). Bridging device according to one of claims 13 to 15,
characterized in that
the expansion joint construction (4) comprises cross members (5a, 5b, 8) which bridge the joint gap (1), the cross members (5a, 5b, 8) being movably received in both profile shapes, in particular in the profile support (16) of the edge profile ( 9) one profile shape and the opposite leg (19) of the other preferably L-shaped profile shape, in order to thereby form a guide for the movement of the profile shapes. Bridging device according to one of claims 14 to 16,
characterized in that
a leg (20) of the L-shaped profile shape which is movable with respect to the building part is arranged parallel to the surface of a building part, in particular the roadway side of a bridge, and shifts along the building part when the L-shaped profile parts move relative to one another, thereby preferably below the building surface intervene or detach a sacrificial element (22) on the structural part. Bridging device according to one of Claims 13 to 17,
characterized in that
the profile shapes are formed from full-surface steel profiles, from lattice-like structures or from individual parts such as steel sheets, edge profile elements, profile beams or the like. Bridging device according to claim 1,
characterized in that
the expansion joint construction comprises crossbeams (5a, 5b, 8) which bridge the joint gap, the safety device being part of the expansion joint construction (4) so that the crossbeams (5a, 5b) have different lengths, at least a first length (short crossbeams ( 5a)) and a second length (long trusses (5b)), the trusses with the first length having an anchoring (34) on a structural part, in particular on the stationary bridgehead, as an element of the safety device, which when exceeded the limit load is replaced by the truss bodies of the trusses (5a) with the first length as another element of the safety device, so that the trusses (5a) with the first length can move away from the anchoring (34) in a defined manner. Bridging device according to claim 19,
characterized in that
the trusses (5a) with a first length have at their end opposite the anchoring a driver device (37), in particular in the form of a truss plate, which causes the movement of the truss (5a) with the first length away from the anchoring (34), in particular by the stop of the truss plate (37) on the edge profile (9). Bridging device according to claim 19 or 20,
characterized in that
the crossbeams (5b) with a second length, in particular together with the cover profiles (6) arranged on the crossbeams (5a, 5b, 8), serve as guide elements for the crossbeams (5a) with the first length. Bridging device according to one of the preceding claims,
characterized in that
at least two or more safety devices (12; 15; 34, 5a) are combined, in particular a safety device according to one of claims 2 to 5 on one side of the joint gap and a safety device according to one of claims 6 to 10 on the opposite side of the joint gap, wherein preferably a safety device according to one of claims 11 to 12 is provided on the same side of the joint gap as the safety device according to one of claims 2 to 5.

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