BG3031U1 - Coupling module for expansion joints in elastic restraint systems for bridges - Google Patents

Abstract

The utility model relates to a coupling module for expansion joints in elastic restraint systems for bridges, which will find application in road construction, in particular for the safety of road users and road infrastructure of bridges. The created joint module for expansion joints in elastic restraint systems for bridges includes two steel posts (3), spaced apart, with a horizontal beam (2) attached to each pillar (3) by means of connecting elements (4). The beam (1) for the expansion joint is located between the posts (3) and the horizontal beams (2) are located at the two ends of the beam (1). The beams (1) and the horizontal beams (2) have a C-shaped profile and the posts (3) have a U, C or ?-shaped profile and are located with their closed part in the direction of the vehicle movement. The beam (1) is provided with elliptical openings (6) for clamping to both posts (3) and to the two horizontal beams (2) through the connecting elements (4). A steel rectangular plate is welded to the steel posts (3) for clamping (5) on the coupling module to the existing concrete base of the road.

Description

Field of technology

The utility model refers to a connection module for expansion joints in elastic restraint systems for bridge structures, which will find application in road construction, in particular for the safety of road users and the road infrastructure of bridge structures.

BACKGROUND OF THE INVENTION

Expansion joints are a key element of modern construction. They connect building parts and elements that are made of different materials, allowing movement and subsidence of the respective structure. The joints must be properly planned and treated depending on the thermal expansion of the materials and the air stresses. Expansion joints are needed to prevent damage to the structure such as deformations and cracks due to differences in the characteristics of different building materials with adjacent structural elements.

The bridge facilities of the road infrastructure are secured by road restraint systems. The main purpose of restraint systems is to protect drivers and passengers in vehicles from significant injuries. The restraint systems partially absorb the kinetic energy of the impact of vehicles in them. They must restrain the vehicle, as far as possible without damaging the occupants and without disturbing essential elements of the restraint system or other deformations.

At the places where the expansion joints of the bridge structures are located, the restraint systems are installed with interrupted sections so that the thermal expansions and air stresses do not affect them. Due to the interruption of the elements and leaving an empty distance between them, there is a danger of falling vehicles, as there is nothing to keep them in the event of their deviation.

Technical essence of the utility model

The task of the utility model is to create a connection module for expansion joints in elastic restraint systems for bridge facilities, which will ensure safety for road users by appropriate protection of the road infrastructure.

The problem was solved by creating a connection module for expansion joints in elastic restraint systems for bridge equipment, which includes two steel pillars located at a distance, and to each pillar, by means of connecting elements is attached a horizontal beam. The expansion joint beam is located between the columns, and the horizontal beams are located at both ends of the expansion joint beam. The expansion joint beam and the horizontal beams have a C-shaped profile, and the steel columns have a U, C or Σ-shaped profile and are located with their closed part in the direction of movement of the vehicles. The expansion joint beam is provided with elliptical holes for gripping both the steel columns and the two horizontal beams through the connecting elements.

A rectangular steel plate is welded to the steel poles, for fastening through studs of the connecting module to the existing concrete base of the road.

The advantage of the created connection module for expansion joints is that it provides continuity of the restraint systems of bridge facilities and safety for the participants in the road traffic. In addition, the connection module for expansion joints provides absorption of the horizontal movements of the restraint systems in bridge structures, due to thermal expansion or contraction of the materials, earthquakes and others.

Explanation of the attached figures

This utility model is illustrated in the accompanying figures, where:

Figure 1 is a longitudinal section of a connection module for expansion joints for elast2289 Descriptions to utility registration certificates № 12.1 / 17.12.2018 tic restraint systems for bridge structures, according to the utility model; and Figure 2 - the elements of the connecting module of Figure 1 in disassembled form.

Examples of implementation of the utility model

The created connection module for expansion joints in elastic restraint systems for bridge structures, shown in figures 1 and 2, includes two steel pillars 3, located at a distance, and to each pillar 3 by means of connecting elements 4 is attached a horizontal beam 2. The beam 1 for an expansion joint is located between the pillars 3, and the horizontal beams 2 are located at both ends of the beam 1.

The beam 1 and the horizontal beams 2 have a C-shaped profile, and the posts 3 have a U, C or Σ-shaped profile and are located with their closed part in the direction of movement of the vehicles, the beam 1 being located on the inside of the horizontal beams 2.

The connection module for expansion joints is installed in restrictive systems of bridge facilities and its main task is to absorb the temperature expansions or contractions of the materials. For this purpose, the beam 1 for expansion joints is provided with special elliptical openings 6 for fastening both to the columns 3 and to the two horizontal beams 2 by the connecting elements 4. The elliptical openings 6 allow absorbing the horizontal movements of the bridge structures due to temperature expansions or contractions, earthquakes, stopping forces and others.

The steel posts 3 are provided with a steel rectangular plate for fastening through studs 5 of the connecting module to the existing concrete base of the road.

The beam 1, the horizontal beams 2 and the posts 3 are made of steel S235JR or S355JR. All elements of the coupling module are made with anti-corrosion protection by means of hot-dip galvanizing, which guarantees a longer service life.

Claims (2)

Claims Jointing module for expansion joints in elastic restraint systems for bridge structures, characterized in that it comprises two steel pillars (3) located at a distance, and to each pillar (3) by means of connecting elements (4) is attached a horizontal beam (2), and between the two horizontal beams (2) is the beam (1) for expansion joint, where the beam (1) and the horizontal beams (2) have a C-shaped profile, and the pillars (3) have a P-shape. , C or Σ-shaped profile and are located with their closed part in the direction of movement of the vehicles, the beam (1) is provided with elliptical holes (6), through which it is attached to the horizontal beams (2) and to the pillars. 3) through the connecting elements (4). Coupling module according to claim 1, characterized in that a steel rectangular plate is welded to the steel columns (3) for fastening by means of studs (5) of the coupling module to the existing concrete base of the road.