EP2627829A1

EP2627829A1 - Modular bridge and method for constructing a modular bridge

Info

Publication number: EP2627829A1
Application number: EP11818991.9A
Authority: EP
Inventors: Kerstin Bierbrauer; Thomas Dernbach
Original assignee: Krauss Maffei Wegmann GmbH and Co KG
Current assignee: Krauss Maffei Wegmann GmbH and Co KG
Priority date: 2010-10-13
Filing date: 2011-10-10
Publication date: 2013-08-21
Anticipated expiration: 2031-10-10
Also published as: WO2012059096A1; DE102010038168A1; EP2627829B1

Abstract

The invention relates to a modular bridge comprising lateral elements (2, 3) which are interconnected in the longitudinal direction, and traverse beams (1) which connect the lateral elements (2, 3) in the traverse direction and bearing elements (20) which are arranged such that they form a traffic lane on the traverse beams (1). The invention relates to a method for constructing a modular bridge in which lateral elements (2, 3) are interconnected in the longitudinal direction and said lateral elements (2, 3) are interconnected by traverse beams (1) and bearing elements (20) are arranged such that they form a traffic lane on said traverse beams (1). The invention also relates to modules for forming a modular bridge with lateral elements (2, 3) which can be interconnected in the longitudinal direction and with traverse beams (1) for connecting the lateral elements (2, 3) in the traverse direction and bearing elements (20) which can be arranged such that they form a traffic lane on the traverse beams (1).

Description

Modular bridge and method of construction

a modular bridge

The invention relates to a modular bridge with side elements which are interconnected in the longitudinal direction. Further objects of the invention are a method for constructing a modular bridge, wherein side elements are connected to each other in the longitudinal direction, and a modular system for forming a modular bridge with side elements which are connected to each other in the longitudinal direction.

Modular bridges are used as temporary bridges to cross rivers or ditches. Such bridges are commonly used in a state in which they are broken down into their components, spent at a site. Often it is necessary that the bridges at the site in a short time with little effort from the components can be built. In this case, a modular design of the bridge is advantageous, which has a small number of different types of components and connections in the manner of a modular system. Such a bridge is described in DE 197 19 300 A1. This trough bridge has side members that are longitudinally interconnected. Furthermore, the bridge has plate-shaped cross members, which in each case connect opposite side elements in the transverse direction. These transverse elements are designed as roadway elements, which form a traffic route in the longitudinal direction, which is usable for crossing the bridge. In the known bridge, the transverse elements are designed as full-surface roadway elements. The plates extend over the entire area between the opposite side elements and have a high weight, which hampers the handling of the components in the construction of the bridge.

It is an object of the invention to provide a reduced weight bridge which can be constructed in a simple manner.

In the case of a modular bridge mentioned in the introduction, the abovementioned task is solved in that it has cross members which connect the side elements in the transverse direction and have support elements which are arranged on the cross members to form a traffic route. Characterized in that Äuflageelemente are arranged to form a traffic route on the cross beams, the cross member may be formed such that they have a reduced weight. The modular bridge can be easily constructed due to the reduced weight.

The components of the modular bridge may be side elements and / or cross members and / or support elements. Preferably, the components are substantially plate-shaped. The components of the bridge can be designed flat, whereby they have an increased stability.

More preferably, the side members, the cross member and / or the support elements are made of a fiber composite material. By using a fiber composite material, the components can have a low weight with high stability. In addition, an improved fatigue strength of the components can be made possible. It can be made possible an improved handling of the components. For example, the components may be designed such that they can be picked up by a person alone. Furthermore, the weight of the components may be less than 75 kg, in particular less than 45 kg, preferably less than 25 kg.

Since the components of modular bridges usually have to be connected together at the place of use, it is advantageous if the connecting elements are designed such that the components can be connected to one another with little effort. Therefore, advantageous embodiments of the bridge relating to the connection means for connecting the components will be described below:

In an advantageous embodiment of the invention, the side elements and the cross member cooperating, in particular interlocking, fixed connection means for connecting the cross member to the side elements. The connecting means may be arranged integrally on the side elements and / or the cross members. In a fixed, non-detachable connection of the connecting means with the side members and / or the cross members no loose connection means are required, except for possibly existing locking means, whereby the construction of the bridge is facilitated. Preferably, the connecting means are arranged on the side elements in the region of the middle of a broadside. In a further advantageous embodiment, the cross member and the support elements cooperating, in particular interlocking, fixedly arranged connecting means for connecting the support elements with the cross members. The connecting means may be integrally arranged on the cross members and / or the support elements. In a fixed, non-detachable connection of the connecting elements with the cross members and / or the support elements no loose connection means are required, whereby the bridge can be constructed in a simple manner.

Furthermore, an embodiment is advantageous in which the side elements have cooperating, in particular intermeshing, fixedly arranged connecting means for connecting the side elements in the longitudinal direction. The connecting means may be integrally arranged on the rare elements. In a fixed, non-detachable connection of the connecting means with the side elements no loose connecting elements are required, whereby the bridge can be constructed in the longitudinal direction in a simple manner.

Preferably, the connecting means are solid components of the cross member and / or the side members and / or the support elements. The connection tion medium can be integrally arranged on the respective components, in particular be molded.

In a structural embodiment, the connecting means are not detachable and / or integrally connected to the cross members and / or the side members and / or the support elements.

In the following, advantageous embodiments of the bridge will be described with regard to the arrangement of the components:

In one embodiment of the invention, two transversely opposite side elements are connected to each other via exactly one cross member. By a cross member, the stability of the bridge in the transverse direction can be improved. The fact that only one cross member connects the two side elements, the number of required connections is reduced. The bridge can be built with little time.

Furthermore, an embodiment of the invention is advantageous in which the side elements lined up in the longitudinal direction are identical in particular to the side elements arranged in the region of the ends of the bridge.

By using identical side elements, the cost of manufacturing the components can be reduced. Moreover, the side elements need not be distinguished in the structure, so there is no risk of confusion. The same applies to the cross member and support elements.

Further, it is advantageous if two support elements lie adjacent to each other on a cross member in the longitudinal direction. By means of the resting support elements, a traffic route can be formed in the longitudinal direction. The Support elements can rest loosely on the cross member or be connected to the cross member.

Preferably, two parallel support elements are arranged side by side on the cross members. As a result, a traffic route with two parallel lanes can be formed.

Particularly preferred is an embodiment in which the support elements in the transverse direction from each other and / or spaced from the side elements. In the area between the support elements and the side elements, a material-free area can be arranged. The fact that no material is arranged in this area, the weight of the bridge can be reduced. In order to reduce the dangers for pedestrians arising from the spacing of the support elements, a light plate-shaped component, in particular a grate, can be arranged in the area between the support elements. Likewise, such components can be provided to improve pedestrian safety between the support elements and the side elements. In a further embodiment, the cross member are spaced apart in the longitudinal direction. The cross members may be formed as planar components, between which a material-free region is arranged in the longitudinal direction. This truss-like arrangement of the cross member may cause a reduction of the total weight of the bridge with sufficient stability.

Further, it is advantageous if in the longitudinal direction at the ends of the bridge cross member are arranged, which are designed as ramp elements. Via the ramp elements, easier access to the traffic route can be made possible. The ramp elements may have a difference in level between See the traffic route of the bridge and the underground surrounding the end of the bridge.

In a constructive embodiment, the bridge has segments connected to one another, which consist of two side elements, a cross member and at least one support element, in particular two support elements. The segments can be prefabricated during the construction of the bridge. In addition, the components of the bridge can be designed such that no loose connection means are required for connecting and locking the components of a segment.

The modular bridge has arranged on both sides of the traffic route side elements which are connected to each other in the longitudinal direction. The connection of the side elements must in particular be designed for the compressive and tensile forces that arise during operation of the bridge. In the following, preferred embodiments of this connection of the side elements are described together:

Preferably, the side elements are connected to one another via plug connections in the longitudinal direction. By a plug connection, a detachable coupling of the side elements can be made possible with each other. The side elements can be connected by the connector in a simple manner without further loose connecting elements. In a constructive embodiment, the side elements are an in

Longitudinally extending, horizontal axis pivotable. The side elements can be pivoted individually relative to adjacent side elements or pivoted together with adjacent side elements relative to the cross members. Further, it is advantageous if the connectors each have a pin and a sleeve which are arranged concentrically to the pivot axis. As a result, one side element can be connected to another side element and pivoted in the connected state. The pin and the sleeve may be integrally connected to the respective side member.

Preferably, the connector forms the pivot bearing for the side member. The side member can be pivoted about an axis which is oriented parallel to the insertion direction of the connector. By the connector coupling of the side member is made possible with the other side member, wherein both side elements are mutually pivotable.

Particularly preferred are on the side elements, in particular the front side, means for locking the pivoting movement, in particular a pin securing arranged, which cooperate with the adjacent side member. By locking the side elements together, a movement, in particular a pivoting movement, of the side elements are blocked against each other. Furthermore, the side elements can be detected in the locking position. Moreover, a plurality of interlocked side members can be secured together against inadvertent pivoting. For securing can be arranged between a side member and a cross member, a securing element, whereby the pivoting of a plurality of interconnected side elements is blocked. In the following, preferred embodiments of the modular bridge, in particular trough bridge, are described with regard to the connection of the side elements to the cross members. In a preferred embodiment, the cross members have a fastening element which rests on a support arranged on a side element, the side element being in an open position in which the fastening element can be placed on the support can be pivoted into a locking position, in which a locking element arranged on the side element locks the fastening element. The cross member can be connected in the open position of the side member with the side member and locked by pivoting the side member with this. In the locking position of the cross member is locked to the side member. Characterized in that the side member is pivotable in the locking position, preferably no loose parts for locking the components are required.

The fastening element is preferably formed as an integral part of the cross member. The fastening element can be arranged in one piece on the cross member, in particular be molded. More preferably, the support and / or the locking element are formed as an integral part of the side member. The support and / or the locking element can be arranged integrally on the side element. In a fixed, non-detachable connection of said elements with the respective components no loose locking elements are required to lock the cross member to the side member.

By means of the fastening element and the support of the cross member can be connected to the side member. In addition, to lock the two interconnected components, the locking element is required. In addition to advantageous embodiments of the connection by means of the fastening element and the support also embodiments of the locks of the two components are described below: In a preferred embodiment, the fastener engages behind the support. The fastening element may be designed such that it extends from one side of the support over the support and has a curvature or angling in the region of the opposite side of the support which at least partially surrounds the support in the manner of a hook. The support may be in contact with the fastener both on a support side of the side member and on another side of the side member. The further side of the side member may represent a side facing away from the cross member. The fastening element may for example be designed as a claw and / or rest on the support in a form-fitting manner. Moreover, the fastener may protrude from the cross member in the manner of a gooseneck.

In a further preferred embodiment of the invention, the fastening element rests on the support in such a way that movement of the transverse support in a horizontal direction is limited. The movement of the cross member may be limited in a direction which is oriented substantially perpendicular to the direction in which the cross member is placed on the side member. Furthermore, the movement of the cross member may be limited in one direction in the support plane. By limiting the movement in a horizontal direction, the mobility of the cross member relative to the side member in a first direction can be blocked.

Particularly advantageous is an embodiment in which a movement of the fastening element in the direction parallel to the pivot axis of the side member is limited by stops arranged on the side member. The support may have laterally arranged stops, by which the movement of the applied fastener in the support plane can be limited. In a further advantageous embodiment, the locking element cooperates with the fastening element such that a movement of the cross member is limited in the vertical direction. The vertical direction may be the direction from which the fastener can be placed on the support. By the locking element, the recording of the cross member can be blocked in a direction opposite to the raising direction. In the locked position, the cross member can not be lifted from the support, the cross member is locked by means of the locking element with the side member. The side member may have a recess or recess which forms an opening for insertion of the fastener. The support can be arranged in the recess. In a structural embodiment, the locking element is designed as an inner portion of a recess. In the open position, the recess can be released for insertion of the fastening element. To connect the components, the fastener can be placed on the support. The support portion lying opposite the inner portion of the recess may be configured as a locking element. When pivoting the side member from the open position into the locking position, the locking element can be pivoted on the resting on the support fastener. For locking the fastener between the support and the locking element can be enclosed, wherein the inner portion of the recess blocks movement of the fastener against the Auflegeichtung. Moreover, the recess can form a further inner section. point, which acts as an inner stop for the front side of the cross member. After pivoting, the movement of the fastener can be limited by the inner stop. Preferably, a securing element for locking the pivoting movement is arranged between the cross member and the side member. By the securing element, the position of the side member relative to the cross member can be fixed. The side element can be locked in the locked position. By means of the securing element, the pivoting of the side member from the locking position can be prevented in an open position. The securing element can be connected directly or via further components with the cross member and the side member. In particular, a securing element for locking the pivoting movement of a plurality of interconnected, side elements between a side member and a cross member may be arranged.

If the fastener is placed on the support, the side member can be pivoted so that the fixedly connected to the side member support is pivoted under the fastener and / or the fixedly connected to the second component locking element is pivoted about the fastener. It is advantageous if the design of the fastening element is adapted to both the design of the support and on the configuration of the locking element. As a result, the fastening element can be mounted on the support in such a way that, for example, a pivoting of the side element is made possible without being hooked. Further advantageous embodiments with regard to the mutual adaptation of the components are described below: It is advantageous if the contour of the fastening element is adapted to the contour of the support and / or to the contour of the locking element. By adapting the contours of the fastening element and the support, a positive connection of the fastening element with the support can be achieved. An adaptation of the contours of the fastener and the locking element allows a positive connection of fastener and locking element. The contours can also be adapted to one another such that the cross member can occur during pivoting of the side member in an opening or recess of the side member, when the fastener rests on the support.

Furthermore, it is particularly advantageous if the pivot axis of the side member extends concentrically to a inner rounding of the fastening element and / or an outer rounding of the fastening element. If the pivot axis coincides with the center of the inner rounding of the fastening element, the support can be pivoted under the overlying fastening element, since the outer contour of the support can slide along the inner rounding of the fastening element. Further, in a side member in which the pivot axis coincides with the center of the outer periphery of the fastening element, the locking element can be pivoted via the fastening element, since the locking element can be moved during pivoting about the outer circumferential surface of the fastening element. The concentric course of the curves thus enables the pivoting of the side member via the fastener from the open position into the locking position.

In a further structural embodiment, the fastening element has a inner rounding, the curvature concentric to the curvature of a Round surface of the support runs. As a result, the fastening element can be placed in a form-fitting manner on the support.

Furthermore, it is structurally advantageous if the locking element has a round surface, the curvature of which runs concentrically to the curvature of an outer rounding of the fastening element. As a result, the locking element can be pivoted into a locking position, in which the locking element locks the fastening element in a form-fitting manner. In the following, further embodiments of the invention will be described with regard to the construction of the cross member in the region of the fastening element:

It is advantageous if the fastening element is arranged on the end side on the cross member. This allows a connection of the two components in the region of the end of the cross member. The cross member may in particular have two ends on which fastening elements are arranged. An elongate body may be arranged between the two ends of the first component. The body may be formed as an elongated cross member, on the other components, in particular transversely to the cross member, can be placed. The fastener may be integrally connected to the cross member.

Moreover, it is advantageous if the cross member has a plurality of parallel arranged fastening elements at one end. The fasteners may be arranged in the manner of a fork. In the area between the fastening elements, a recess, in particular a groove, can be arranged. In the recess of the first component can engage a nose of the second component, which is designed in particular as a stop. By a stop, a lateral movement of the cross member relative to the side member can be limited. Furthermore, it may be provided structurally that the cross member between the fastening elements is configured trough-shaped. The cross member may be designed such that it kinks upwards at the edge of the body towards the fastening straps, in particular in the manner of a gooseneck. Thereby, the cross member can be mounted between the opposite side elements, wherein the body of the cross member is arranged at the level of or below the supports of the side members. In order to provide a modular bridge, in particular trough bridge, which can be constructed in a simple manner, in addition to the above-described embodiments of the connection of the side elements with the cross members also described embodiments of the connection of the support elements with the cross members are used:

Preferably, the support elements are connected to the cross members by a tongue and groove connection. With a tongue and groove connection, the components can be positively connected with each other. More preferably, the support elements have a groove and on a cross member supporting the components, a connecting element is arranged, which has the spring. Since the connecting element which connects the two components, is arranged on a cross member which carries the two components, no loose connecting elements are required. The components can be plugged into the connecting element on the cross member during assembly and thus be connected together in a simple manner.

The connecting element is preferably formed as an integral part of the cross member. In a connecting element, which is integrally formed on the transverse arranged carrier, in particular molded, is no further loose locking elements are required to connect the two components.

In a structural embodiment of the invention, the components are located on the cross member. The support elements may in particular form parts of a traffic route which runs above the cross member.

In a further embodiment, the support elements are flush with each other. The support elements can be connected flush so that they rest against each other at least partially frontally. Furthermore, a common surface can be formed by the outer contour of the respective components, which faces away from the cross member. The common surface of the flush-connected support elements can form a usable area, in particular a flat traffic route.

The connected support elements are shared by another component - the cross member - worn. Advantageous embodiments of the invention with respect to this carrier will be discussed below: In a preferred embodiment, the connecting element has a web which connects the spring with the cross member. The web can be firmly connected to the spring and / or the cross member. Furthermore, the web can be designed in the manner of a spacer, by means of which the spring can be fixed at a fixed distance from the surface of the carrier. The height of the web can be adapted to the material thickness of the support elements in the region of the groove.

In a further embodiment, the connecting element has a T-shaped cross section. The upper, horizontal leg of the T-shaped Cross-section can be formed by the spring. In the case of the connected support elements, the horizontal limb of the connection element can be positively connected to the grooves of the components. The lower, vertical leg of the T-shaped cross section may be formed by the web connecting the spring to the cross member. In the connected state, the vertical leg can be arranged in the region between the end faces of the support elements.

Preferably, a movement of the support elements in the direction of the groove is limited by arranged on the cross member or on the connecting element side stops. By means of the side stops a lateral movement of the support elements can be inhibited. The side stops may each abut a side surface of the connected support elements, which is arranged substantially perpendicular to the connected end face.

For side stops, which are arranged on the connecting element, it is particularly advantageous if the side stops are arranged on the end of the spring. The support elements can be connected to one another in the region of the spring and held in the region of the spring by means of the side stops arranged on the edge of the spring. Moreover, the side stops can be integrally connected to the spring, in particular be integrally formed on this.

In an advantageous embodiment of the invention, the cross member has a recess in which the connecting element is arranged. The recess may be formed in the manner of a recess with a support surface for supporting the support elements. The width of the recess can be adapted to the width of the support elements. Furthermore, the recess may be adapted to receive the support elements along its width. The Support elements can be inserted for connection in the recess. In the region of the recess, the support elements can be inserted into the connecting element and thus connected to each other. Particularly advantageous is an embodiment in which the recess is designed such that the support elements are flush with the cross member. The support elements can be introduced into the recess. By flush completion of the support elements with the cross member, a uniform surface can be formed with the same height. The occurrence of cracks or furrows between the support elements and the cross member can be prevented.

In a further embodiment of the invention, the depth of the recess corresponds to the thickness of the support elements. The recess can be adapted to the components in such a way that a level surface results in the case of connected support elements in the transition region between the support elements and the cross member. As a result, a common flat surface can be formed by the support elements and the cross member, which can be used, for example, as a traffic route.

In a structural embodiment of the invention, the side walls of the recess form the side stops. For side walls of a recess which act as a side stop, no separate side stops need to be provided to limit lateral movement of the support elements. The side walls can touch the support elements. Moreover, the side walls can act as a guide for the support elements when introducing the support elements into the recess. The support elements may have a groove whose depth is substantially adapted to half the width of the spring. In connected support elements, the spring can be arranged in half in the groove of the first component and half in the groove of the second component. In addition, the connected support elements may rest against a contact surface of the cross member, which extends over the entire width of the cross member. Each of the connected support elements can rest on one half of the contact surface on the cross member. Preferably, the cross member is wider than the width of the spring. In a contact surface, which is configured wider than the spring, an increased stability of the connection between the support elements with each other and / or between the support elements and the cross member can be made possible. The support elements can lie in the connected state with a region on the cross member which is larger than the region in which the groove extends.

Above was addressed to advantageous embodiments of the cross member, which fulfills both a supporting and a connecting function with respect to the two support elements. Hereinafter, preferred embodiments of the support elements are described. In this context, the side on which the support elements are connected to each other, called the front side. The respective side of the two components, which faces the cross member, is referred to as the carrier side. Components which bear against the cross member are thus connected to one another at the end face and connected to the cross member on the carrier side.

It is advantageous if a coupling element is arranged on the bearing elements in the region of the connection on the front side and / or the carrier side, which has or forms the groove. The coupling element may be integrally connected to the support element. At the front of the support elements the coupling element can be designed as an extension of the support element. In a carrier side arranged on the support element coupling element, the coupling element may protrude in the manner of an essay on the surface of the support element.

Preferably, the depth of the groove with respect to an upper side of the support element is different from the depth of the groove with respect to an underside of the support element opposite the upper side. The underside of the connected support element may face the cross member and in particular rest on the cross member. Through a groove with different lengths of material projections, a flush connection of the support elements can be made possible at the top of the support element, while at the bottom of the support element in the region below the groove a space for the web can be kept.

In a cross member having a recess, the coupling element is preferably in the recess. In the connected position, the support elements can abut one another on the front side, while the coupling elements of the support elements are connected to one another in the recess of the carrier.

In a further embodiment, a plurality of coupling elements are arranged in parallel on the support elements. The coupling elements can be distributed over the front side of the support elements. Furthermore, guide elements can be provided between the parallel coupling elements, which effect a guidance of the support elements against one another.

In an alternative embodiment, the groove extends over the entire width of the support elements. Such a groove can be over the entire width the support element are in engagement with the spring. This allows a high strength of the connection against tilting of the support elements against each other. Support elements, which are connected to each other by means of a tongue and groove connection can - as described above - connection side have a groove. The required connecting element has in this case a spring which can be inserted into the grooves of the support elements. Without changing the principle of the tongue and groove connection, in each case a spring can be arranged on the connection sides of the support elements in contrast to the above embodiments. In this case, a connecting element is required, which has a groove. In a structural design, the support elements thus have a spring and a connecting element, which has the groove, is arranged on a cross member carrying the components. Since the connecting element which connects the two support elements is arranged on a cross member which carries the two support elements, no loose connection elements are required. The support elements can be inserted into the connecting element on the cross member during assembly and thus be connected to one another in a simple manner.

In a method mentioned above for constructing a modular bridge, the abovementioned object is achieved by connecting the side elements to one another via crossbeams, and by arranging support elements on the crossbeams to form a traffic route.

Because support elements are arranged on the cross members to form a traffic route, the cross members can be formed in such a way. that they have a reduced weight. The modular bridge can be easily constructed due to the reduced weight.

Preference is given to a method in which the construction takes place in segments, wherein in each case a further side element is connected in the longitudinal direction to the opposite side elements of an already constructed segment, wherein the connected side elements are connected in the transverse direction via a cross member and wherein at least one support element on the cross member is arranged. If the bridge is constructed segment by segment, segments of the bridge can be prefabricated and attached to the already constructed segments of the bridge.

Further preferred is a method in which the support element is arranged with an end portion on the cross member of the already constructed segment and is arranged with the opposite end portion on the cross member of the segment to be built.

Furthermore, a method is advantageous in which a fastening element is arranged on the cross member and is placed on a support arranged on the side element, wherein the side element is pivoted from an open position in which the fastening element can be placed on the support into a locking position. in which a locking element arranged on the side element locks the fastening element. The cross member can be connected in the open position of the side member with the side member and locked by pivoting the side member with this. In the locking position of the cross member is locked to the side member. Characterized in that the side member is pivotable in the locking position, no loose parts for locking the components are required. In an initially mentioned modular system for forming a modular bridge, in particular trough bridge, the abovementioned object is achieved by the fact that this cross member has for connecting the side elements in the transverse direction and bearing elements, which can be arranged on the cross members to form a traffic route.

Characterized in that the kit has support elements for forming a traffic route on the cross beams, the cross member may be formed such that they have a reduced weight. The modular bridge can be easily constructed due to the reduced weight.

Moreover, the embodiments described in connection with the modular bridge can also be applied to the modular system.

Further advantages of the invention will be explained below with reference to the embodiments illustrated in the figures. FIG. 1 is a perspective view of a modular bridge; FIG.

Fig. 2 is a front view of the bridge of Fig. 1;

Fig. 3 is a side view of the bridge of Fig. 1;

Fig. 4 is a plan view of the bridge of Fig. 1;

5 shows the bridge of Figure 1 in an exploded view. Fig. 6 shows a first embodiment of the cross member of Figure 1 in a side view.

Fig. 7, the cross member of Figure 6 in a plan view.

Fig. 8 is a perspective view of the cross member of Fig. 6;

Fig. 9 is a sectional view of the cross member of FIG. 6 in

Area of the fastener;

10 is a perspective view of the ramp element

Fig. 1;

1 is a side view of a second embodiment of the cross member;

Fig. 12 of the cross member of Figure 11 in a plan view.

FIG. 13 shows the cross member from FIG. 11 in a perspective view; FIG.

FIG. 14 shows the support element in a front view; FIG.

FIG. 15 shows the support element of FIG. 14 in a side view; FIG.

FIG. 16 shows the support element from FIG. 14 in a plan view; FIG.

Fig. 17, the support element of Fig. 14 in a perspective

Presentation; a third embodiment of the cross member in sectional views; a fourth embodiment of the cross member in sectional views; a fifth embodiment of the cross member in sectional views; the connection region of two side elements of Figure 1 in a perspective view. the longitudinal end of a side member of Figure 1 in a perspective view. the fuse element from Flg. 25 in a perspective view; the cross member and two side members in a perspective view for illustrating the connection and locking operation; and

Fig. 30, the side member of Fig. 1 in a sectional view.

In Fig. 1, a relocatable bridge 5 is shown, which is described in detail as an example of a modular support structure. The designed as a trough bridge bridge 5 has different types of supporting components 1, 2, 3, 20, 21, which are configured substantially plate-shaped. The Components 1, 2, 3, 20, 21 are components of a modular system in which the components of one type are identical and therefore can be interchanged. The modular bridge 5 can be used as a temporary bridge structure, which is spent in its components 1, 2, 3, 20, 21 disassembled to its place of use. At the site, the components 1, 2, 3, 20, 21 can then be connected to each other manually. The bridge 5 can be constructed in a simple manner due to its modularity and the design of the components 1, 2, 3, 20, 21. Further, the bridge 5 can be provided in any length as needed. As a result, in particular, rivers or trenches can be bridged by means of the bridge 5 in a short time. The bridge 5 provides a traffic route for crossing the bridge 5 in the longitudinal direction L, which can be used equally by vehicles and persons.

In the longitudinal direction L, the bridge 5 has as supporting components the side elements 2, 3 connected in the longitudinal direction L, cf. Fig. 2. The supporting components in the transverse direction Q are formed by cross beams 1, which are spaced from each other, see. Fig. 1. The cross member 1 are connected to the side members 2, 3 by means of a component connection 12, which will be described in more detail below. The connection of the cross member 1 with the side members 2, 3 takes place in the region of the center of the side members 2, 3 with respect to the longitudinal direction L. In the region of the longitudinal ends of the bridge 5 are arranged in the transverse direction Q as ramp members 21 formed carrier, the vehicles and Make people easier to access the traffic area. These ramp elements 21 are connected to the side elements 2, 3 via a component connection 12 'and lie on the end-side cross members 1. The traffic route extending in the longitudinal direction L is formed by the support elements 20 arranged on the transverse beams 1. The support elements 20 are plate-shaped and can accommodate orthogonal to the forces exerted on the crossing of the bridge 1 forces. In addition, the support elements 20 can also be loaded by forces acting in their plane. The support elements 20 can thus stiffen the bridge against distortion in the manner of a wind union.

The support elements 20 are placed on the cross member 1 and form two in the longitudinal direction L of the bridge 5 continuous surfaces, which are particularly suitable as a driving surface for a vehicle, see. FIG. 4. The spacing of the support elements 20 is adapted to the average track width of a road vehicle. In order to keep the weight of the bridge 5 low, the support elements 20 are spaced apart in the transverse direction, so that between the two formed by the support elements 20 tracks of the bridge 5 is a material-free space is that can be optionally covered to ensure a safe crossing of the Bridge 5 also for pedestrians to allow. The cover can be done for example by a grid. To further reduce the weight, the contact elements 20 abutting one another in the longitudinal direction L are also spaced apart from the side elements 2, 3, cf. Fig. 1 and Fig. 4.

The modular bridge 5 can be assembled in a simple manner from the components 1, 2, 3, 20, 21, since the connecting means for connecting the components 1, 2, 3, 20, 21 fixed components of the respective components 1, 2, 3, 20, 21 are. Thus, no further, loose connection means for connecting the components 1, 2, 3, 20, 21 are required. The components 1, 2, 3, 20, 21 of the bridge 5 are also made of a fiber composite, whereby they have a low weight, in particular less than 25 kg. The components 1, 2, 3, 20, 21 can therefore be held by one person alone and mounted on the bridge 5.

When mounting the bridge 5, it is advantageous if the bridge 5 is constructed in segments. A segment 53 of the bridge 5 has two opposite side elements 2, 3, a cross member 1 and two support elements 20, see. FIG. 5. A further segment 53 can be connected to the already constructed segments 53 of a bridge 5 by first connecting the side elements 2, 3 to the already constructed side elements 2, 3. In a further step, the cross member 1 is connected to the side elements 2, 3 of the segment 53 to be attached and locked. Finally, the support elements 20 are placed on the cross member 1 to form a traffic route.

Alternatively, the segments 53 can also be prefabricated. For this purpose, the side members 2,3 are first connected to the cross member 1 and locked. In a second step, the side elements 2, 3 of the prefabricated segment 53 are then already provided with the side elements 2, 3. connected to the bridge 5 segment 53 connected and locked. The support elements 21 can be connected to the cross members 1 either before or after connecting the segments 53. Further, in the assembly of the bridge 5, a clock shift method may be used, in which the segments 53 are prefabricated on one side of the obstacle and interconnected and locked. The built-up segments 53 are pushed in segments over the obstacle. In order to overcome the obstruction when displacing the assembled segments 53 To reduce the Kragmomente, a Vorbaumchnabel is arranged on the foremost segment 53, which can support the built-up segments 53 in reaching the other side of the obstacle. In the following, the different component connections between the components 1, 2, 3, 20, 21 will be discussed. First, the component connection 12, 12 'between the side members 2, 3 and the cross members 1 and the ramp members 21 will be described. Then the connection of the side elements 2, 3 in the longitudinal direction L is discussed. Finally, the connection of the support elements 20 in the longitudinal direction L with each other and with the cross members 1 will be described.

The component connection 12 between the side elements 2, 3 and the cross members 1 will be described below with reference to FIGS. 6 to 9 and FIGS. 27 to 30. The component connection 12 'between the side elements 2, 3 and the ramp elements 21 takes place in an analogous manner.

The cross member 1 shown in FIGS. 6 to 8 is formed as an elongate, substantially plate-shaped component. The cross member 1 has a body 30, on whose opposite ends fastening elements 6 are arranged. The fastening elements 6 are connected by means of a gooseneck 29 to the body 30, so that a trough-shaped cross-section of the cross member 1 results, see. Fig. 6. At the connection-side ends of the cross member 1 each two parallel Befestigungselemen- te 6 are provided, which are separated by a groove 26, see. Fig. 7.

The plate-shaped side elements 2, 3 are designed to connect and lock with the cross members 1 about a longitudinal axis L extending, horizontal pivot axis S pivotally, see. Fig. 1. The side elements 2, 3 Thus, individually or in conjunction with the respective adjacent side elements 2, 3 with respect to the cross members 1 and the ramp elements 21 can be pivoted about a pivot angle W, cf. FIG. 2. The swivel angle W is at least 30 °, in particular at least 45 °, preferably at least 60 °.

As shown in FIG. 9, the fastening element 6, 6 'can be placed against a vertical direction V on a support 7, 7', which is arranged on the side element 2, 3. The support 7, 7 'on the side element 2, 3 has an inner rounding 33 which is concentric with the

Swivel axis S of the side member 2,3 extends. Furthermore, the contour of the fastening element 6, 6 'has an inner rounding 33, which is adapted to the inner rounding 33 of the support 7, T. The fastening element 6, 6 'is designed in accordance with FIG. 9 such that it engages behind the support 7, T. The fastening element 6, 6 'extends opposite to the horizontal direction H via the support 7, 7' and buckles in the manner of a claw in the region of a curvature 31 of the support 7, 7 'from. By Hintergreifung 34, a movement in the horizontal direction H can be blocked after placing the fastener 6, 6 'on the support 7, 7'.

As shown in FIG. 30, the support is formed as an inner portion of a recess 10, 10 'on the side member 2, 3. The support 7, 7 'is located in the lower region of the recess 10, 10'. In the rear region, the recess 10, 10 'is bounded by a rear wall 54. Alternatively, the recess 10, 10 'have an opening in the rear region. In the upper region of the recess 10, 10 ', a locking element 8, 8' is provided with a round surface 25, by means of which the fastening element 6, 6 'with the support 7, T can be locked. Also the locking element Ment 8, 8 'is formed as an inner portion 51 of the recess 10, 10'. The contour of the locking element 8, 8 'is adapted to the contour of the fastening element 6, 6' such that the locking element 8, 8 'can be pivoted into the region above the fastening element 6, 6'. For this purpose, the curvature of the circular surface 52 is concentric with the curvature of the outer rounding 32 of the fastening element 6, 6 ', cf. Fig. 9.

Further, in Fig. 24, the recess 10 'is shown. The recess 10 ', like the recess 10, has a stop 9 arranged laterally of the support 7, T. The stop 9 is formed by a stop surface 37 designed as an inner portion of the recess 10, 10 '. By means of the stop 9, a movement of the transverse support 1 resting on the support 7, 7 'can be limited in a direction parallel to the pivot axis S. Since the supports 7, 7 'and the locking element 8, 8' are arranged integrally on the side element 2, 3, the connection and locking of the components 1, 2, 3, 21 can take place without loose parts. A method for connecting and locking the cross member 1 with the side member 2, 3 will be described below with reference to FIGS. 27 to 29. The method is equally suitable for connecting and locking the ramp element 21 with the side element 2, 3:

For connecting the cross member 1 with the side member 2, 3, the fastening elements 6 of the cross member 1 are placed on the support 7 of the side member 2, 3. In this case, the side member 2, 3 is in an open position in which it is pivoted relative to the vertical direction V by a pivot angle W, cf. Also Fig. 2. When placing the fasteners 6 engage in the recess 10 a. At the same time, a lug 10 arranged on the side element 2, 3 engages in the groove 26 between the fastening elements. menten 6 of the cross member 1 a. The nose 10 acts as a stop for the fastening elements 6. This allows a movement of the cross member 1 in the longitudinal direction L and in the transverse direction Q are limited. In addition, 1 further elements may be arranged on the cross member 1, which limit a rotation and / or tilting of the cross member 1 in the horizontal plane formed from the longitudinal direction L and the transverse direction Q.

The connected state in which the fastening elements 6 rest on the supports 7 is shown in FIG. 28. The fastening elements 6 are located within the recesses 10. The locking elements 8 are located in a position pivoted relative to the cross member 1, laterally of the fastening elements 6.

For locking the side members 2 and 3 with the cross member 1, the side members 2, 3 from the open position, see. Fig. 28, pivoted in a locking position in which they are oriented substantially parallel to the vertical direction V, cf. In this case, the locking element 8 is pivoted into the region above the fastening element 6, so that a movement of the fastening element 6 in the vertical direction V is limited. The components 1 and 2 and 3 are locked together in the region of the component connection 12, cf. Fig. 29.

In order to block a pivoting movement of the side elements 2, 3, the side elements 2, 3 can be locked. For this purpose, a securing element 11 is arranged between the end-side side element 2, 3 and the respective ramp element 21 in the region of the ends of the bridge 5.

A detailed illustration of this securing element 11 is shown in FIG. 26. The elongate securing element 11 has one at each of its ends vertically angled bolts 43, 44, the bolts 43, 44 facing in opposite directions. The bolt 44 is connected to a arranged on the ramp element 21 connecting element 36 which is formed in the manner of a sleeve, see. Fig. 25. The bolt 44 can be inserted in the longitudinal direction L in the connecting element 36.

At the other end, the securing element 11 is connected by means of the bolt 43 to a closing element 22 which is coupled to the side element 2, 3 via a connecting element 41. For this purpose, the bolt 43 can be inserted into an opening in the closing element 22 in the longitudinal direction L.

By means of this backup inadvertent pivoting of the side elements 2, 3 can be prevented. As will be shown in the further text, the side elements 2, 3 can also be locked in the longitudinal direction L. As a result, only one each at the end of the bridge 5 arranged securing element 11 is required to lock the pivotal movement of the interlocked side members 2, 3. In the following, the connection of the side elements 2, 3 will be explained with reference to the illustration in FIG. 24:

In the longitudinal direction L of the bridge 5, the side elements 2, 3 are connected to each other via connectors 13. In the region of the lower chord of the side elements 2, 3, these each have a pin 14 on one end side and a sleeve 13 on the opposite side. Both the pin 14 and the sleeve 13 are arranged concentrically to the pivot axis S. The plugged into the sleeve 13 pin 14 can be rotated. The pin 14 is fixedly connected to the respective side member 2, 3. Thus, the plug-in Compound 13, the pivot bearing for the side member 2, 3 form. The side elements 2,3 can be pivoted against each other by means of this pivot bearing. In order to lock the connector, a position securing element 16 is provided in the region of the sleeve 15, which can be inserted through an opening 38 in the pin 14. When locked connector 13 is no pivoting of the interconnected side elements 2,3 against each other more possible. The side elements 2, 3, are by the position assurance element 16 both in terms of the connector 13 and in terms of

Swiveling relative to the adjacent side elements 2, 3 lockable. The position securing element 16 also has an opening 19.1 into which a securing pin can be inserted. By means of a securing pin, the position securing element 16 can be held in the locking position.

The bridge 5 is exposed to different stresses during assembly and driving over in the region of the upper and lower belt. Therefore, it is necessary that the bridge 5 in the longitudinal direction L can absorb compressive and tensile forces. For this purpose, the end face of the side member 2, 3, a pin fuse 17, which is arranged in the region of the upper belt of the side members 2, 3. By means of the bolt lock 17, interconnected side elements 2, 3 are additionally locked together. The side elements 2, 3 can thus be secured against tension and pressure. The bolt lock 17 has a bolt 39 which can be inserted through the locking element 40.1 on the front side of the one side element 2, 3 and through the locking element 40.2 on the front side of the other side element 2, 3. The bolt 39 also has an opening 19.2, into which a securing bolt can be inserted. By means of a securing bolt, the bolt 39 can be held in the locking position. By connecting the cross member 1 with the side members 2, 3, a skeleton for the bridge can be provided. In order to equip the bridge with a traffic route for driving on or passing the bridge, it is moreover possible for the support elements 20 to be connected to the cross members 1 as roadway panels. Using the embodiment of a cross member 1 described above and shown in FIGS. 6 to 8, the support elements 20 can be placed loosely in the region of the body 30 of the cross member 1. Alternatively, however, connecting means can also be provided on the cross member 1, which enable a locking connection of the support elements 20 with the cross members. Such a connection will be described below:

1 to 13, a second embodiment of the cross member 1 is shown. On the cross member 1 are spaced from each other in the longitudinal direction L two connecting elements 46 are arranged, which each have a spring 23. The spring 23 has a length E which corresponds substantially to the width B of the support elements 20, cf. Fig. 16. The spring 23 may limit the movement of the support members 20 in the longitudinal direction L. At the ends of the spring 23 each side stops 24.1 are arranged, by which a movement of the support member 20 connected to the cross member 1 in the transverse direction Q can be limited.

The connecting elements 46 are integrally formed on the cross member 1. As a result, the assembly effort for connecting the support elements 20 to the cross members 1 can be reduced. Alternatively, however, the connecting elements 46 can also be fixed or detachable, for example via a screw connection, to the cross member 1. The design of the support elements 20 can be seen in FIGS. 14 to 17. In the region of the end faces of the support elements 20 is in each case one integrally connected to the support element 20 coupling element 50 is arranged, which forms a groove 25. The compound on the position elements 20 with the cross beams 1 via a tongue and groove connection 45, wherein the support elements 20 can be inserted for connection to the cross member 1 in the spring 23. The lateral stops 24.1 arranged on the side of the spring limit a lateral movement of the support elements 20 in the direction of the groove 25.

Alternatively, a groove can also be arranged on one of the further sides of the support element 20 from FIGS. 14 to 17. This allows a connection in the transverse direction Q adjacent support elements 20 are made possible. In addition to the embodiment of the cross member 1 shown in FIGS. 11 to 13 with connecting means for connection to the support elements 20, other embodiments of the cross member 1 are possible, which allow a tongue and groove connection 45 with the support elements 20 and described below.

In FIGS. 18 and 19, a third embodiment of the cross member 1 is shown in a sectional view. 19 shows a sectional view through the cross member 1 in the transverse direction Q in the connection region with the support elements 20. FIG. 18 shows a sectional view through the transverse support 1 in the longitudinal direction L in the connection region with the support elements 20. The cross member 1 has a recess 49 with a depth T on. In the recess 49, a connecting element 46 is arranged, which has a T-shaped cross-section. The upper horizontal leg of the T is formed by the spring 23, which has a width F. To connect the Spring 23 with the cross member 1, a web 47 is provided, which forms the lower vertical leg in the T-shaped cross-section.

In this third embodiment of the cross member 1, the connection of the support elements 20 is produced by the support elements 20 are inserted into the recess 49 and are inserted into the connecting element 46. A lateral slippage of the support elements 20 can be prevented by side stops 24.2, which are configured as side walls of the recess 49. The fact that the thickness D of the support elements 20 corresponds to the depth T of the recess 49, the support elements 20 can be flush with the cross member 1. The support elements 20 form a common surface with the cross member. 1

As shown in FIG. 18, the depth of the groove 25 with respect to the upper side of the support element 20 is greater than the depth of the groove 25 with respect to the underside of the support element 20. Thus, the support elements 20 in the area above the spring 23 can lie flush against each other, while below the spring 23 an area for the web 47 is kept free. Furthermore, the width of the cross member is dimensioned such that it is greater than the width of the spring F. As a result, a sufficient support surface for the support element on the cross member 1 can be provided. The bearing surface extends beyond the region of the spring 23.

A fourth embodiment of the cross member 1 is shown in FIGS. 20 and 21. Here, the connecting element 46 is arranged on the surface of the cross member 1. Also on the surface of the cross member 1 are the side stops 24.3, which have a lower height than the support elements 20. The support elements 20 can be placed on the cross member 1 and be plugged with the end-side groove 25 in the spring 23 of the connecting element 46.

A fifth embodiment of the cross member 1 is shown in FIGS. 22 and 23. In this embodiment of the cross member 1, the connecting elements 46 are in the region of a recess 48, while the support elements are arranged substantially outside the recess 48 on the surface of the cross member 1. Only a small part of the support elements 20 penetrates into the recess 48 when connecting to the cross member 1. On the support elements 20, a coupling element 50 is arranged on the carrier side, which can be introduced into the recess 48. The side stops 24.4 are formed in this embodiment by the side walls of the recess 48. As an alternative to the above-described connection of the support elements 20 with the cross members 1, a spring may be provided on the support elements 20 and a groove on the cross members. The components 1, 20 can be coupled in this case in an analogous manner according to a tongue and groove connection 45.

The modular bridge 5 described in the exemplary embodiments has components 1, 2, 3, 20, 21, on which the connecting means for connecting the components 1, 2, 3, 20, 21 are fixedly arranged together. When building the bridge 5 therefore no further loose connection means are required. The bridge 5 can be constructed in a simple manner due to the one-piece design of the components and connecting means. Reference numerals:

1 first component, cross member

2 second component, side element

3 third component, side element

4 nose

5 bridge

6, 6 'fastener

7, T support

8, 8 'locking element

9 stop

10, 10 'recess

11 fuse element

12, 12 'component connection

13 plug connection

14 cones

15 sleeve

16 position securing element

17 pin safety

18 bolts

19.1, 19.2 opening

20 supporting element, component

21 ramp element

22 end element

23 spring

24.1 -24.4 Side stop

25 groove

26 groove

27 bearing surface 28 head

29 neck

30 component body

31 round surface

32 external rounding

33 inside rounding

34 Hintergreifung

35 ramp slope

36 connecting element

37 stop surface

38 opening

39 bolts

40.1, 40.2 locking element

41 connecting element

42 connecting element

43 bolts

44 bolts

45 tongue and groove connection

46 connecting element

47 footbridge

48 recess

49 recess

50 coupling element

51 interior section

52 round surface

53 segment

54 rear wall

B width D depth

E length

F width

H horizontal direction L longitudinal direction

Q transverse direction

S pivot axis

T depth

V vertical direction w tilt angle

Claims

claims:

1. Modular bridge with side elements (2, 3) connected together in the longitudinal direction,

marked by

Cross member (1) connecting the side members (2,3) in the transverse direction, and support elements (20) which are arranged to form a traffic route on the cross members (1).

2. Bridge according to claim 1, characterized in that the side elements (2, 3) and / or the cross member (1) and / or the support elements (20) are substantially plate-shaped.

3. Bridge according to one of the preceding claims, characterized marked, that the side elements (2,3), the cross member (1) and / or support elements (20) are made of a fiber composite material.

4. Bridge according to one of the preceding claims, characterized in that the side elements (2, 3) and the cross member (1) cooperating, in particular interlocking, fixedly arranged connecting means (6, 7) for connecting the cross member (1) with the Side elements (2, 3) have.

5. Bridge according to one of the preceding claims, characterized marked that the cross members (1) and the support elements (20) cooperating, in particular interlocking, fixedly arranged connecting means (23, 25) for connecting the support elements (20) with the cross members ( 1).

6. Bridge according to one of the preceding claims, characterized in that the side elements (2, 3) cooperating, in particular interlocking, fixedly arranged connecting means (14, 15) for connecting the side members (2, 3) in the longitudinal direction.

7. Bridge according to one of claims 4 to 6, characterized in that the connecting means (6, 7, 14, 15, 23, 25) fixed components of the cross member (1) and / or the side members (2, 3) and / or the support elements (20) are.

8. Bridge according to one of claims 4 to 7, characterized in that the connecting means (6, 7, 14, 15, 23, 25) non-detachably and / or in one piece with the cross members (1) and / or the side elements (2, 3) and / or the support elements (20) are connected.

9. Bridge according to one of the preceding claims, characterized in that two transversely opposite side elements (2, 3) via exactly one cross member (1) are interconnected.

10. Bridge according to one of the preceding claims, characterized in that the longitudinally juxtaposed side elements (2, 3), in particular with the in the region of the ends of the bridge (5) arranged side elements (2, 3) are identical.

1 1. Bridge according to one of the preceding claims, characterized in that rest on a cross member (1) in the longitudinal direction of two support elements (20) adjacent to each other.

12. Bridge according to one of the preceding claims, characterized in that on the cross beams (1) two parallel bearing elements (20) are arranged side by side.

13. Bridge according to one of the preceding claims, characterized in that the support elements (20) in the transverse direction from each other and / or from the side members (2, 3) are spaced.

14. Bridge according to one of the preceding claims, characterized marked, that the cross member (1) are spaced apart in the longitudinal direction.

15. Bridge according to one of the preceding claims, characterized in that in the longitudinal direction at the ends of the bridge cross member (1) are arranged, which are designed as ramp elements (21).

16. Bridge according to one of the preceding claims, characterized by mutually connected segments (53) consisting of two side elements (2, 3), a cross member (1) and at least one support element (20), in particular two support elements (20).

17. Bridge according to one of the preceding claims, characterized in that the side elements (2, 3) via plug connections (13) are interconnected in the longitudinal direction.

18. Bridge according to one of the preceding claims, characterized in that the side elements (2, 3) about a longitudinally extending, horizontal axis (S) are pivotable.

19. Bridge according to claim 17, characterized in that the plug connections (13) each have a pin (14) and a sleeve (13), which are arranged concentrically to the pivot axis (S).

20. Bridge according to one of claims 17 to 19, characterized in that the plug connection (13) form the pivot bearing for the side member (2, 3).

21. Bridge according to one of claims 17 to 20, characterized in that on the side elements (2, 3), in particular the front side, means for locking the pivoting movement, in particular a pin lock (17) are arranged, which with the adjacent side element (2, 3) interact.

22. Bridge according to one of the preceding claims, characterized in that the cross member (1) has a fastening element (6, 6 ') which rests on a on a side member (2, 3) arranged supports (7, 7'), wherein the side member (2, 3) from an open position in which the fastening element (6, 6 ') on the support (7, 7') can be placed, is pivotable in a locking position in which a on the side member (2, 3) arranged Locking element (8, 8 '), the fastening element (6, 6') locked.

23. Bridge according to claim 22, characterized in that the fastening element (6, 6 ') engages behind the support (7, 7').

24. Bridge according to one of claims 22 or 23, characterized in that a movement of the fastening element (6, 6 ') in the direction parallel is limited to the pivot axis (S) of the side member (2, 3) arranged on the side member (2, 3) stops (9).

25. Bridge according to one of claims 22 to 24, characterized in that the locking element (8, 8 ') as an inner portion (51) of a recess

(10, 10 ') is configured.

26. Bridge according to one of claims 22 to 25, characterized in that the contour of the fastening element (6, 6 ') to the contour of the support (7, 7') and / or to the contour of the locking element (8, 8 ') is adjusted.

27. Bridge according to one of claims 22 to 26, characterized in that the pivot axis (S) of the side member (2, 3) concentric with a inner rounding (33) of the fastening element (6, 6 ') and / or an outer rounding ( 32) of the fastening element (6, 6 ') extends.

28. Bridge according to one of claims 22 to 27, characterized in that between the cross member (1) and the side member (2, 3) a securing element (11) is arranged for locking the pivoting movement.

29. Bridge according to one of claims 22 to 28, characterized in that the cross member (1) are designed in the transverse direction trough-shaped.

30. Bridge according to one of the preceding claims, characterized marked, that the support elements (20) with the cross members (1) by a tongue and groove connection (45) are connected.

31. Bridge according to claim 30, characterized in that the on position elements (20) have a groove (25) and that on one of the support elements (20) supporting cross member (1) a connecting element (46) is arranged, which has the spring (23).

32. Bridge according to one of claims 30 or 31, characterized in that the support elements (20) rest on the cross member (1).

33. Bridge according to one of claims 30 to 32, characterized in that connect the support elements (20) flush with each other.

34. Bridge according to one of claims 31 to 33, characterized in that the connecting element (46) has a web (47) which connects the spring (23) with the cross member (1).

35. Bridge according to one of claims 31 to 34, characterized in that the connecting element (46) has a T-shaped cross section.

36. Bridge according to one of claims 30 to 35, characterized in that a movement of the support elements (20) in the direction of the groove (25) arranged on the cross member (1) or on the connecting element (46) side stop (24.1, 24.2 , 24.3, 24.4).

37. Bridge according to one of claims 30 to 36, characterized in that the cross member (1) has a recess (48, 49), in which the connecting element (46) is arranged.

38. Bridge according to claim 30, characterized in that the support elements (20) have a spring (23) and that on a support elements (20) carrying cross member (1) a connecting element (46) ange- is arranged, which has the groove (25).

39. Method for constructing a modular bridge, in particular according to one of the preceding claims, wherein side elements (2, 3) are connected to one another in the longitudinal direction,

characterized ,

in that the side elements (2, 3) are connected to one another via transverse beams (1) and that support elements (20) are arranged on the cross members (1) to form a traffic route.

40. The method according to claim 39, characterized in that the construction is carried out in segments, wherein on the opposite side elements (2, 3) of an already constructed segment (53) in each case a further side element (2, 3) is connected in the longitudinal direction, wherein the connected side elements (2, 3) in the transverse direction via a cross member (1) are interconnected, and wherein at least one support element (20) on the cross member (1) is arranged.

41. The method according to claim 39 or 40, characterized in that the support element (20) is arranged with one end portion on the cross member (1) of the already constructed segment (53) and with the opposite end portion on the cross member (1) of the segment to be built (53) is arranged.

42. The method according to any one of claims 39 to 41, characterized in that on the cross member (1) a fastening element (6, 6 ') is arranged on a on the side member (2, 3) arranged supports (7, 7' ) is applied, that the side element (2, 3) from an open position, in the the fastening element (6, 6 ') can be placed on the support (7, 7'), is pivoted into a locking position, in which a locking element (8, 8 ') arranged on the side element (2, 3) projects the fastening element (6, 6 ') locked.

43. Modular system for forming a modular bridge, with side elements (2, 3) which are connectable to each other in the longitudinal direction,

marked by

Cross member (1) for connecting the side elements (2, 3) in the transverse direction and support elements (20), which can be arranged to form a traffic route on the cross members (1).