Double anchor skeleton road joint for rapid second installation

Abstract

Road joint comprising a set of two joint columns (11) which hold between them a joint (10) and anchoring lugs (12) fixed on the one hand to the joint columns (11) and on the other hand to the roadway structures / civil engineering structure to be joined, characterized in that the anchoring lugs (12) are secured to the joint columns by a first longitudinal sliding constraint means (111, 121) and by a second anchoring fixing means (30, 111, 121). Figure for the abstract: Fig. 3

Description

Title of the invention: Road joint with double anchor skeleton for rapid second installation

[0001] The present invention relates to a road joint with a double anchor skeleton for rapid second installation.

[0002] The function of a road joint is to allow the expansion of materials in a connection between a road and a structure while ensuring continuous sealing.

[0003] By road joint, we mean a joint model from the family of hiatus joints whose structure holds an extruded rubber profile whose function is to ensure watertightness and sealing against materials. The joint structure that we call here joint skeleton provides rigidity and is anchored both to the road and to the structure by an anchor that we call structural anchor.

[0004] Pavement joints are installed on new structures. But they must be regularly revised and changed. In particular for the renovation of bridges, during operations on deck supports. These renovation operations require changing the pavement joints. This is then referred to as a second installation of pavement joints. This second installation is carried out with new equipment, i.e. a new joint skeleton and a new rubber profile, which must adapt to the existing configuration of the pavement and the bridge deck. The major difficulty that the invention aims to resolve is to facilitate the adaptation of the pavement joint to the specificity of the structure that is to be renovated. Indeed, on a new structure, the pavement joint manufacturer has the reinforcement plans for the structure and can prepare in the workshop the geometry of the joint skeleton that will be compatible with the reinforcement installed on site.On the other hand, for an old structure that is being renovated, the documentation is often absent, incomplete or false and does not allow for preparation for the worksite before the worksite. On the site, skilled workers must adapt to the terrain and carry out on-site welding operations of the joint skeleton. These adjustment, adaptation and welding operations take up precious time, and during these operations, the road is cut off and unusable for road traffic.

[0005] The invention therefore aims to reduce the operating times on the construction site for a second installation of road joint. Typically on a construction site estimated at 3 to 4 days, the invention makes it possible to reduce the construction time by at least one day, which is a very appreciable advantage for the clients.

[0006] To successfully reduce the time required for a second road joint installation, the invention proposes a road joint skeleton which is easily adaptable in situ. This adaptability is made possible by the means of the invention which are a translational mobility of the anchoring legs along the joint column. When the operator determines the correct position of an anchoring leg on the column, he anchors this anchoring leg on the column by a new operation of assembling the skeleton parts together called a skeleton anchoring operation. The invention therefore substitutes a previous operation of positioning the anchoring legs on the structure along the joint column by welding with a new operation of positioning the anchoring legs on the structure along the joint column by so-called skeleton anchoring.It is therefore understood that the operators need less qualification to carry out the operations and instead of carrying out as previously 1 - welding operations then 2 - structural anchoring operations, they must now carry out with the means offered by the invention, 1 - a series of so-called skeleton anchors, then 2 - a series of so-called structural anchors.

[0007] The new inventive arrangement of the parts according to the invention thus allows rapid adaptation to the situation on the ground and offers a quality of finish equivalent to that of the joints of the prior art.

[0008] A main object of the invention is therefore to propose a quick-lay road joint which adapts quickly and easily to construction site configurations unknown before the construction site.

[0009] An object of the invention is to propose a solution which satisfies the safety standards and construction standards in force in the profession.

[0010] An object of the invention is to propose a solution which is easy to understand for site operators and which is so well designed that it eliminates possible defects due to incorrect use of the product.

[0011] An object of the invention is to propose an industrializable product whose cost price is competitive with the solutions of the prior art.

[0012] In a main aspect, the invention proposes anchoring legs which slide in translation in the joint column and which, once their position on the site has been clearly defined, can be fixed securely to the column by a first operation known as skeleton anchoring on the joint column.

[0013] In a particular aspect, the anchoring legs slide in the joint column according to a double rectangular dovetail slide cooperation.

[0014] In a particular aspect, the skeleton according to the invention comprises three types of parts to be assembled by a screw system 1 - the joint column 2 - the anchoring tabs 3 - the column / tab plate to secure the tab to the column.

[0015] The invention will be better understood on reading the following appended figures in which

[0016] [Fig-1] represents a sectional view of the prior art solution of a road joint

[0017] [Fig.2] represents a top view of the prior art solution of a joint of roadway cooperating with the structure

[0018] [Fig.3] represents a sectional view of the road joint solution according to the invention

[0019] [Fig. 1] shows a sectional view of the prior art solution for a roadway joint. The prior art proposes a set of two joint columns (11) which hold a joint (10) between them. Anchoring legs (12) are secured to the joint columns (11) by means of welds (1112) perpendicularly outwards. The anchoring legs (12) are respectively anchored to the roadway and to the structure by means of structural anchors (13) of known type.

[0020] [Fig.2] represents a top view of the solution of the prior art and it is understood thus how the anchoring legs (12) must be positioned by the operator along the joint column (11) to find their place in the reinforcement (21) of the anchoring structures (roadway, civil engineering structure). In top view, the anchoring legs (12) have an oblong shape and their function is to keep the joint column (11) fixed by an anchor (13) to the structure by sliding into the middle of the reinforcement (21). As explained previously, the only method of fixing the anchoring legs to the joint column known to date consists of a craft operation on site by welding on site carried out by specialized operators.

[0021] [Fig.3] represents a sectional view of the solution according to the invention. It proposes a complete solution that integrates several assembly tips.

[0022] Unlike the prior art which proposes a joint skeleton structure in two parts: 1 - joint column (11) + 2 - anchoring tabs on structure (12), the invention proposes a joint skeleton structure made in three parts: 1 - joint column (11) + 2 - anchoring tabs on structure (12) + 3 - column / tab fixing plate (30).

[0023] The securing of the anchoring lugs on the structure (12) to the joint column (11) is now done by the cooperation of two means. A first means of longitudinal sliding constraint which consists of a set of hollow slides (111) made in the joint column which cooperate with a set of complementary rectangular dovetails (121) protruding from the anchoring lug on the structure (12). In a preferred form, the contact between the two parts is made along a flat bearing surface at approximately 45° downwards. For this first means, the operator must insert the anchoring lugs by their dovetail into the column slides. This arrangement of engaging the dovetail in the slide leaves only one degree of freedom of the anchoring lug (12) with respect to the joint column (11). The operator meticulously moves the anchor plates (12) along the joint column according to this degree of freedom to finely adapt to the reinforcement of the structures in order to position them in free spaces. Once the anchor plates (12) are finely positioned longitudinally along the joint column (11), he firmly secures them together by the second skeleton anchoring means. These second means consist of a so-called column / leg fixing plate (30) which rests with a complementary upper face shape (112) on both the joint column (11) and the anchoring leg (12). The operator then anchors the column / leg fixing plate (30) to both the joint column (11) and the anchoring leg (12) by known screw-type plate anchoring means (31). The assembly becomes irremediably linked without any degree of freedom available.The assembly is finely positioned and adapted to the specific second-lay configuration found on site.

[0024] All that remains for the operator 1 - is to anchor the entire skeleton by its anchoring legs using structural anchors (13) of a known type of screw type on the structure. 2 - is to add alignment bars of a known type in the windows (122) perforated in the anchoring legs (12) to keep the assembly secured to the reinforcement. The joint is then firmly anchored to the structure and to the reinforcement and the rest is treated in a known manner by pouring quick-setting concrete.

[0025] The invention thus consists of a road joint comprising a set of two joint columns (11) which hold between them a joint (10) and anchoring lugs (12) fixed on the one hand to the joint columns (11) and on the other hand to the roadway / works of art structures to be joined, characterized in that the anchoring lugs (12) are secured to the joint columns by a first longitudinal sliding constraint means (111, 121) and by a second screw fixing means (30, 112, 31).

[0026] The invention thus consists of a road joint characterized in that the longitudinal sliding constraint means (111, 121) consist of a set of hollow slides (111) made in the joint column (11) which cooperate with a set of complementary dovetails (121) protruding from the anchoring lugs on the structure (12).

[0027] The invention thus consists of a road joint characterized in that the sliding contact between the joint column (11) and the anchoring plate (12) at the level of the slides (111) is made along a flat bearing surface at approximately 45° oblique downwards.

[0028] The invention thus consists of a road joint characterized in that the second fixing means consist of a so-called column / lug fixing plate (30) which comes to bear with a complementary upper face shape (112) both on the joint column (11) and on the anchoring lug (12) and which is fixed with means known screw-type plate anchors (31) to both the column / leg fixing plate (30) and the joint column (11).

[0029] It is understood that the invention covers the possible variations made to the present with the obvious contribution of those skilled in the art.

Claims

Claims

1. Road joint comprising a set of two joint columns (11) which hold between them a joint (10) and anchoring lugs (12) fixed on the one hand to the joint columns (11) and on the other hand to the roadway structures / civil engineering structure to be joined, characterized in that the anchoring lugs (12) are secured to the joint columns by a first longitudinal sliding constraint means (111, 121) and by a second screw fixing means (30, 112, 31).

2. Road joint according to claim 1 characterized in that the longitudinal sliding constraint means (111, 121) consist of a set of hollow slides (111) made in the joint column (11) which cooperate with a set of complementary dovetails (121) protruding from the anchoring lugs on the structure (12).

3. Road joint according to claim 1 and 2 characterized in that the sliding contact between the joint column (11) and the anchoring lug (12) at the level of the slides (111) is made according to a flat support surface oblique downwards.

4. Road joint according to claim 1 characterized in that the second fixing means consist of a said column / lug fixing plate (30) which comes to bear with a complementary upper face shape (112) both on the joint column (11) and on the anchoring lug (12) and which is fixed with known plate anchoring means (31) of the screw type both to the column / lug fixing plate (30) and to the joint column (11).

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