KR20040000207A - Pandrolltype concrete vibration-proof sleeper for bridge - Google Patents

Abstract

PURPOSE: A concrete vibroisolating sleeper for a pandrol type bridge is provided to scatter the load of vehicles widely on roadbed by expanding the section of a sleeper and to resist against vertical, horizontal pressure added on a rail effectively. CONSTITUTION: The concrete vibroisolating sleeper for a pandrol type bridge contains a base plate fixture formed on the retreated parts from both ends of a precast concrete sleeper(101) to install a base plate(103) for placing a sleeper(101), wherein many anchor bolts(104) are formed on the base plate fixture to fix the base plate(103) to the sleeper(101), a projection(101t) is formed from the base plate fixture to both ends of the sleeper(101) to resist the horizontal pressure of a rail(102) installed on the sleeper(101), and a bolt hole(105h) is formed to install an anti-derailment guardrail(105) and a bolt hole(106h) is formed to scatter vehicular load widely and to install an H-beam(106) for increasing elasticity on roadbed between both base plate fixtures.

Description

Pandrolltype concrete vibration-proof sleeper for bridge}

The present invention relates to a concrete dustproof sleeper for a pedroll type bridge, in particular, considering the derailment, resistance, noise / vibration of the train lacking in the existing sleeper, by reducing the noise and vibration by installing a dustproof fastener at the bottom of the rail, sleeper The present invention relates to a concrete dustproof sleeper for a pedroll type bridge which can distribute the load from the vehicle to the roadbed by providing projections at both ends to improve longitudinal and lateral resistance generated at the left and right sides of the rail, and by installing a section steel at the center of the sleeper.

In general, a track in a railroad is collectively referred to as rails, sleepers, icons and rail fasteners. Among these, the sleeper is a component that supports and fixes the rail at the bottom, and serves to transfer the load of the train received through the rail back onto the ship. Wooden sleepers have been used as the sleepers in the past, but concrete sleepers have been used in recent years due to various problems such as strength, lifespan, and raw material supply.

Conventional concrete sleepers are configured to receive the load and vibration from the vehicle by fixing only the rail pad to the rail bottom. Such conventional concrete sleepers are difficult to distribute the load from the railroad car to the roadbed widely. Therefore, in order to distribute the load widely on the roadbed, two types of sleepers, namely, concrete sleepers and concrete sleepers that can be fastened to the guard rail, must be installed. In addition, in order to catch the resistance generated from the left and right of the rail, the gravel pattern should be installed high at the end of the sleeper.

The present invention was created to improve the problems in the conventional concrete sleepers as described above, by expanding the sleeper cross-section can be widely distributed the load of the vehicle on the roadbed, by forming a protruding jaw on both ends of the sleepers generated on the left and right rail It is an object of the present invention to provide a concrete dustproof sleeper for a pedroll type bridge which can effectively resist the longitudinal and lateral pressures.

1 is a side view showing the structure of a concrete dustproof sleeper for a pedroll type bridge according to the present invention.

Figure 2 is a plan view showing the structure of a concrete dustproof sleeper for a pedroll type bridge according to the present invention.

<Explanation of symbols for the main parts of the drawings>

101 ... concrete sleeper 102 ... rail

103 ... Base plate 104 ... Anchor bolt

105 ... guard rail 106 ... section steel

101t ... protrusions 103p ... base plate seat

105h, 106h ... Bolt Insertion Holes

In order to achieve the above object, the concrete dustproof sleeper for a pedroll type bridge according to the present invention has a PC steel wire embedded therein, and at each point spaced inward by a predetermined distance from both ends, installation of a base plate for seating the rail on the sleeper. In the concrete sleeper is provided with a base plate seat for,

The base plate seating portion is formed integrally with the sleeper body a plurality of anchor bolts for fixing the base plate seated on the sleeper body during the field installation of the sleeper, the rail provided on the sleeper from the base plate seating portion to both ends of the sleeper Protruding jaws are formed respectively to resist the longitudinal and transverse pressures of the steel plate. Between the base plate mounting portions, bolt insertion holes for installing the derailment guard rail and vehicle load are widely distributed on the roadbed, It is characterized in that the bolt insertion holes are formed for the installation of each.

Here, preferably, the protruding jaw formed at both ends of the sleeper is formed so that the central portion of the contact portion with the base plate protrudes in the form of iron so as to effectively resist the longitudinal and lateral pressure of the rail.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 show the structure of the concrete dustproof sleepers for the pedroll type bridge according to the present invention, Figure 1 is a side view, Figure 2 is a plan view.

As shown in Figures 1 and 2, the concrete dustproof sleepers for the pedroll-type bridges according to the present invention are spaced inwardly by a predetermined distance from both ends of the body of the precast concrete sleepers 101 having a certain width and height, respectively A base plate seating portion 103p is provided for installation of the base plate 103 for seating the rail 102 on the sleeper 101. The base plate seating portion 103p includes a plurality of anchor bolts 104 integrally formed with the sleeper body for fixing the base plate 103 seated on the sleeper 101 to the sleeper 101 main body. And, from the base plate seating portion (103p) to both ends of the sleeper 101, protrusions (101t) for resisting the lateral pressure of the rail 102 installed on the sleeper 101 are formed, respectively, the base plate seating Between the portions 103p, a bolt insertion hole 105h for installing the derailment preventing guard rail 105 and a vehicle load are widely distributed on the roadbed, and a section steel (H-shaped steel) 106 is installed for increasing the elasticity of the drawing. Bolt insertion holes 106h for each are formed.

Here, preferably, the projection jaw (101t) formed on both ends of the sleeper 101, so that the central portion of the portion in contact with the base plate protrudes in the form of iron so as to effectively resist the longitudinal and transverse pressure of the rail Is formed.

On the other hand, the anchor bolt 104 is fixed and installed in advance in the position set at the time of reinforcing the reinforcing bars (PC steel wire) in the formwork when manufacturing the sleepers 101 by the formwork. Therefore, in the state of the completed sleeper 101, a part of the body (part where the male thread is formed) is protruded to the upper surface of the sleeper 101. Therefore, any type of dustproof fasteners in which holes for inserting bolts are formed can be applied.

As described above, the pandroll-type concrete dustproof sleepers according to the present invention changed the existing sleepers for the sleepers from the sleepers to increase the maintenance and durability, the cross section of the sleeper to form a larger than the existing sleepers of the train The load can be widely distributed on the roadbed, and by forming a bolt insertion hole in the center of the sleeper, it is possible to hold the elasticity of the shape by installing the shape steel by bolting. In addition, it is possible to increase the safety by forming protruding jaws at both ends of the sleepers in order to resist the longitudinal and transverse resistance of the rail, and by using another bolt insertion hole provided in the body to prevent derailment, You can prevent the train from derailing. In addition, the anchor bolt is installed in the sleeper body to receive the vibration from the vehicle in the existing concrete sleeper only from the rail pad, there is an advantage to reduce the noise and vibration thereby.

Claims (2)

In the concrete sleeper is embedded in the PC steel wire, the base plate seating portion is provided for the installation of the base plate for seating the rail to the sleeper at points spaced inward from each end by a predetermined distance from each end, The base plate seating portion is formed integrally with the sleeper body a plurality of anchor bolts for fixing the base plate seated on the sleeper body during the field installation of the sleeper, the rail provided on the sleeper from the base plate seating portion to both ends of the sleeper Protruding jaws are formed respectively to resist the longitudinal and transverse pressures of the steel plate. Between the base plate mounting portions, bolt insertion holes for installing the derailment guard rail and vehicle load are widely distributed on the roadbed, Pedroll type bridge concrete dustproof sleepers, characterized in that the bolt insertion hole is formed for each installation. The method of claim 1, Protruding jaw respectively formed on both ends of the sleeper is formed so that the central portion of the contact portion with the base plate protrudes in the form of iron so as to effectively resist the longitudinal and transverse pressure of the rail Concrete dustproof sleepers.