KR20200095274A - Sliding elastic supporting apparatus for construction - Google Patents

Abstract

The present invention relates to a sliding elastic support for building. The sliding elastic support for building includes: a lower plate fixed to an upper surface of a pier; an upper plate fixed to a lower surface of a bridge deck in a position corresponding to the lower plate; and a middle plate arranged on a lower portion of the upper plate to be slid on the lower plate. Therefore, the sliding elastic support for building can measure deformation of the bridge deck in a bridge axis direction and a direction perpendicular to the bridge axis direction.

Description

Sliding elastic support for construction {SLIDING ELASTIC SUPPORTING APPARATUS FOR CONSTRUCTION}

The present invention relates to a sliding elastic support for construction and specifically relates to a sliding elastic support for construction including an intermediate plate that is disposed under the upper plate and slides on the lower plate.

In general, between the bridge piers and the bridge deck, the load transmitted from the bridge deck is transmitted to the pier, and internal factors such as deflection due to its own weight, creep and shrinkage of concrete, and earthquakes, wind, temperature changes and external factors. Sliding feet are installed to safely adapt to changes in the bridge deck.

Since the upper plate of the bridge exhibits thermal expansion due to changes in the dynamic load and ambient temperature due to the passage of the vehicle, the deformation occurs in the direction of the bridge axis (the direction of travel of the vehicle) and the direction perpendicular to the direction of the bridge axis.

The elastic support for a bridge according to the prior art is composed of an upper plate anchored to an upper structure, a lower plate anchored to a pier, and an elastic body installed between the upper and lower plates and reinforcing plates disposed therein at equal intervals. Therefore, when a vertical load is applied, the elastic body swells to exert a buffering force and a resistance force, and when a horizontal load is generated, the elastic body is sheared in parallel to resist horizontal load.

On the other hand, as elongation or contraction of the upper structure occurs due to temperature change, a relative displacement occurs between the alternating or bridge pier and the upper structure, and this relative displacement occurs in two dimensions instead of one dimension.

For example, when the upper structure is elongated (thermal expansion) in the longitudinal direction, a very large relative displacement occurs between the pier and the upper structure in the longitudinal direction of the upper structure. On the other hand, when the upper structure extends in the width direction, a large relative displacement occurs between the pier and the upper structure in the width direction of the upper structure. In addition, the same problem occurs even when shrinkage due to low temperature in winter occurs.

Therefore, there is a need for a technique for solving the above-described problem.

Meanwhile, the above-described background technology is technical information acquired by the inventor for the derivation of the present invention or acquired in the derivation process of the present invention, and is not necessarily a known technology disclosed to the general public before filing the present invention. .

It is an object of the present invention to provide a sliding elastic support for construction.

The present invention relates to a sliding elastic support for construction, and specifically relates to a sliding elastic support for construction including an upper plate, an intermediate plate and a lower plate.

According to an embodiment of the present invention described above, in the present invention, by attaching the measuring device to the upper plate and the lower plate, damage to the measuring device does not occur during installation and maintenance of the bridge, and the amount of deformation of the bridge upper plate is always more accurate. Can be measured.

The bridge seating device equipped with the displacement measurement function according to the present invention can measure the deformation of the bridge deck in the direction of the bridge axis and the direction perpendicular to the direction of the bridge axis by installing the measurement device in the direction of the bridge axis and in the direction perpendicular to the bridge axis direction. By comparing the allowable deformation amount of the bridge upper plate and the deformation amount of the bridge upper plate according to the change of, it is possible to obtain a measurement result that makes it easier to determine the maintenance of the bridge.

The effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the field to which the present invention belongs from the following description. .

1 is a side view showing a state of use of a sliding elastic support for construction according to an embodiment of the present invention.
2 is an exploded perspective view of a sliding elastic support for construction according to an embodiment of the present invention.
3 is an exploded perspective view of a sliding elastic support for construction according to an embodiment of the present invention.
4 is a view showing the internal structure of the intermediate plate included in the sliding elastic support for building according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains may easily practice. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. In addition, in order to clearly describe the present invention in the drawings, parts irrelevant to the description are omitted, and like reference numerals are assigned to similar parts throughout the specification.

Throughout the specification, when a part is said to be "connected" to another part, this includes not only the case of being "directly connected" but also the case of being "indirectly connected". In addition, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless specifically stated to the contrary.

Prior to the description of the present invention, terms used in the present invention will be described.

In assigning reference numbers to elements of a drawing, it has been revealed in advance that the same elements are assigned the same reference numbers even if they are on different drawings, and when necessary, elements of other drawings may be referred to when describing the drawing. Put.

Hereinafter, the terms'left' and'right' indicating directions mean that the configuration is shown on the'left' and'right' in the drawings describing the configuration, and the configuration is actually arranged on the left and right. It doesn't mean it's done

In addition, hereinafter, "front" refers to a direction from the sole of the wearer's toe toward the toe, and "rear" refers to a direction from the wearer's toe toward the sole.

1 is a side view showing a state of use of a sliding elastic support for construction (1) according to an embodiment of the present invention, Figure 2 is an exploded perspective view of a sliding elastic support for construction (1) according to an embodiment of the present invention, 3 is an exploded perspective view of a sliding elastic support for building 1 according to an embodiment of the present invention, and FIG. 4 is an internal structure of an intermediate plate included in the sliding elastic support 1 for building according to an embodiment of the present invention. It is a figure shown.

Referring to Figure 1, a sliding elastic support for construction according to an embodiment of the present invention (1) is a lower plate (20) fixed to the upper surface of the pier (3), the lower plate (20) on the lower surface of the bridge upper plate (5) And an upper plate 10 fixed to a position corresponding to the upper plate 10, and an intermediate plate 30 fixed to the lower surface of the upper plate 10 and sliding from the upper surface of the lower plate 20.

The upper plate 10 is installed to correspond to the position of the lower plate 20 installed on the pier 3 at the lower part of the bridge upper plate 5, and on the lower surface, the intermediate plate sliding from the upper part of the lower plate 20 (30) is combined.

The lower plate 20 is a part that forms the basis of the structural sliding elastic support 1 and is fixed to the upper surface of the pier 3 by using a fastening means such as an anchor and a non-shrink mortar.

The position of the upper plate 10 is changed based on the extension of the bridge upper plate 5, and the lower plate 20 is fixed to the upper surface of the pier 3. Therefore, when the relative position between the preset piers 3 and the bridge top plate 5 is changed, the relative positions of the upper plate 10 and the lower plate 20 change. At this time, the upper plate 10 and the lower plate ( 20) Intermediate plate 30 located between the excessive stress and excessive deformation should not occur.

On the other hand, the intermediate plate 30 may include an upper position adjustment key 31 and a lower position adjustment key 32, the upper position adjustment key 31 is fastened with the upper groove 11, the lower position adjustment key 32 may be fastened to the lower groove 21.

To be more specific, the intermediate plate 30 may include a lower position adjustment key 32 protruding toward a lower surface and an upper position adjusting key 31 protruding toward the upper surface. There, the upper plate 10 can move along the longitudinal direction of the upper groove 11, which can be seen as the upper position adjustment key 31 moves along the upper groove (11). In addition, the upper plate 10 and the intermediate plate 30 can be moved along the longitudinal direction of the lower groove 21, in which case, the lower position adjustment key 32 can slide along the lower groove 21. .

The intermediate plate 30 and the upper and lower plates 10 and 20 will be described in detail with reference to FIGS. 2 to 4.

First, grooves 11 and 21 may be formed in the upper plate 10 and the lower plate 20, respectively, and the upper groove 11 and the lower groove 21 may be formed perpendicular to each other.

The upper plate 10 may be arranged to move in the longitudinal direction of the upper groove 11 in a state in which the upper position adjustment key 31 fixed to the intermediate plate 30 is penetratingly coupled to the upper groove 11. .

In addition, the lower plate 20 is disposed so as to be able to move in the longitudinal direction of the lower groove 21 in a state in which the lower positioning key 32 fixed to the intermediate plate 30 is penetratingly coupled to the lower groove 21. I can. When the position of the bridge upper plate 5 is deformed, the intermediate plate 30 may move.

When the lower plate 20 and the upper plate 10 move, each plate 10, 20, and 30 may not move well due to frictional force. Specifically, each plate (10, 20, 30) generates a frictional force between the plates (10, 20, 30), and due to this, even if the bridge is deformed, the plates (10, 20, 30) do not move properly. There is a risk of breakage.

Accordingly, a configuration capable of reducing the frictional force is required. In the present invention, sliding plates 12 and 22 may be disposed on the upper plate 10 and the lower plate 20.

Specifically, when the sliding plates 12 and 22 come into contact with the intermediate plate 30 and move the upper plate 10 and the intermediate plate 30, frictional force may be generated less than that of other materials. To this end, the sliding plates 12 and 22 may be made of a PTFE material.

In other words, the upper sliding plate 12 may be disposed on the bottom surface of the upper plate 10, and the lower sliding plate 22 may be disposed on the upper surface of the lower plate 20, each of the sliding plates 12 and 22 While in contact with the plate 30, the frictional force can be reduced compared to the intermediate plate 30 contacting the respective plates 10 and 20 without the sliding plates 12 and 22.

In this way, by allowing the intermediate plate 30 to move along the longitudinal direction of the lower groove 21 and the upper plate 10 to move along the longitudinal direction of the upper groove 11, the upper plate 10, the intermediate plate ( 20) and the lower plate 30 can be prevented from being separated from each other, and furthermore, even if the bridge upper plate 5 moves in any direction, the upper plate 10 and the intermediate plate 30 can easily move, thereby concentrating stress or No moment or the like occurs.

Meanwhile, the intermediate plate 30 may be formed in a stacked structure. Specifically, the intermediate plate 30 may be formed of an elastic portion 33 that is deformed by a load, and the elastic portion 33 is a material that can be deformed by an external force, for example, rubber or elasticity. It can be composed of a material with.

However, when the intermediate plate 30 is composed of only the elastic portion 33, the intermediate plate 30 may be damaged by an external force. Therefore, a material that is strong against tension and shear may be disposed on the intermediate plate 30 so that the elastic portion 33 is not damaged.

Specifically, the intermediate plate 30 includes an elastic portion 33, and the inside of the elastic portion 33 reinforces the elastic portion 33 so that the elastic portion 33 is not easily damaged, a fixing portion of iron material ( 34) may be disposed, and the elastic part 33 and the fixing part 34 may be disposed in a stacked form. Although the material of the fixing part 34 has been described as iron, this is only an example, and the fixing part 34 is a material that is relatively stronger against external forces than rubber and is not easily damaged, which prevents deformation to the extent that the elastic part 33 is damaged. It can be composed of.

The above description of the present invention is for illustration only, and those skilled in the art to which the present invention pertains can understand that the present invention can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and the concept of equality should be interpreted as being included in the scope of the present invention. do.

1: Sliding elastic support for construction
3: pier
5: bridge deck
10: lower plate
11: lower groove
20: upper plate
21: upper groove
30: middle plate
31: upper position adjustment key
32: lower position adjustment key

Claims (6)

A lower plate fixed to the upper surface of the pier;
An upper plate fixed at a position corresponding to the lower plate on a lower surface of the bridge upper plate; And
Doedoe disposed under the upper plate, sliding on the lower plate, a sliding elastic support for construction including an intermediate plate. The method of claim 1,
The intermediate plate,
On the lower surface of the intermediate plate, a lower position control key is formed toward the lower plate,
The lower position control key,
As the lower position adjustment key is fitted into the lower groove formed in the lower plate, a sliding elastic support for construction that slides along the longitudinal direction of the lower position adjustment key. According to claim 2,
The intermediate plate,
On the upper surface of the intermediate plate, doedoe formed protruding toward the upper portion, and including an upper position control key coupled to the upper groove formed in the upper plate,
The upper plate,
Sliding elastic support for construction that slides along the longitudinal direction of the upper groove formed in the upper plate. The method of claim 3,
The upper groove and the lower groove,
Sliding elastic support for buildings formed perpendicular to each other The method of claim 4,
On the bottom of the upper plate,
An upper sliding plate made of PTFE is arranged,
On the upper surface of the lower plate,
Sliding elastic support for construction on which the lower sliding plate formed of PTFE is placed. The method of claim 5,
The intermediate plate,
Sliding elastic support for construction in which an elastic portion that absorbs a load and a fixing portion that prevents the elastic portion from being deformed to the extent that it is deformed are arranged in a stacked form.

Images