CN201116129Y

CN201116129Y - Adaptability improvement of double block type rail bearing and track circuit and rail bearing cracking prevention device

Info

Publication number: CN201116129Y
Application number: CNU2007201546598U
Authority: CN
Inventors: 李平卓
Original assignee: FOURTH SURVEY AND DESIGN INSTITUTE OF CHINA RAILWAY
Current assignee: FOURTH SURVEY AND DESIGN INSTITUTE OF CHINA RAILWAY
Priority date: 2007-05-14
Filing date: 2007-05-14
Publication date: 2008-09-17
Anticipated expiration: 2017-05-14

Abstract

The utility model relates to an adaptive transformation of a double block type sleeper and a tract circuit and a sleeper cracking prevention device, and relates to the field of the railroad track, in particular to a design technique of a non-slag railway double block type sleeper. The height of the positions of four truss ribbed bars of the lower course of the double block type sleeper is adjusted (uneven legs), that is, the positions of two truss ribs at the outer side are high, and the positions of two truss ribbed bars at the inner side are low, or the positions of the two truss ribbed bars at the inner side are high, and the positions of the two truss ribbed bars at the outer side are low. A cracking prevention hooping is adopted between a support rail stage and the truss ribbed bars, and a weldless connection way is adopted between the cracking prevention hooping and the truss ribbed bars. When the entering mould of the truss ribbed bars of a sleeper is carried out, the upper layer and the lower layer are inverted, and the truss ribbed bars at the upper layer are placed downwards, therefore, the work surface of the cracking prevention hooping between a mounding board and the truss ribbed bars is narrow, and the installation is difficult, so a hooping built-in fitting is adopted to fix the cracking prevention hooping and the truss ribbed bars, and a traditional way of welding or binding is not adopted, the installation is convenient, and manpower and physical resources are saved.

Description

The adaptability reform of double-block type sleeper and track circuit and sleeper are prevented cracking device

Technical field:

The utility model relates to the railroad track field, and what be specifically related to is no slag track double-block type sleeper designing technique.

Background technology:

The thread test section changes then; the domestic girder rib that adopted first; reveal muscle formula double-block type sleeper; for adapting to the China Railway High-speed signaling mode; satisfy signal transmission length requirement; need to carry out insulation processing between the longitudinal reinforcement of sleeper girder rib need and railway roadbed; the point of crossing that domestic former double block type does not have 4 girder ribs of slag track location sleeper lower floor and railway roadbed longitudinal reinforcement all adopts insulating tube to insulate; point of crossing is many and driving surface is little; the thickness of concrete cover of double-block type sleeper is big simultaneously; be prevention sleeper crack on concrete; reduce the scope of insulation processing; convenient construction; reduce investment; satisfy transportation simultaneously again; install; the requirement of others such as use proposes following utility model technology.

The utility model content:

The utility model purpose provides the adaptability reform and the anti-cracking device of sleeper of a kind of double-block type sleeper and track circuit, on the basis of the resonant mode signaling mode that adapts to China, saves the insulation processing cost, and prevention double-block type sleeper cracking is convenient to factory and is manufactured.The utility model is by the following technical solutions: four girder ribs of double-block type sleeper lower floor are carried out the height adjustment (height leg) of position, i.e. and two reinforcement location height in the outside, inboard two reinforcement locations are low; Or inboard two reinforcement location height, two reinforcement locations in the outside are low; Between support rail platform and girder rib, adopt anti-cracking stirrup; Adopt the connection mode of non-welding between anti-cracking stirrup and the sleeper girder rib.

This patent application be that railway does not have double block type or the multi-block sleeper that the slag track is used, for adapting to the resonant mode signaling mode of China, lower floor's reinforcing bar at the sleeper girder rib is insulating with bed board longitudinal reinforcement junction, road, its insulation measures comprises that insulating support (insulating tube) connects the longitudinal reinforcement of sleeper girder rib and road bed board, or in the junction reinforcing bar is carried out insulating coating and handle, by sleeper lower floor girder rib being carried out the height adjustment of position, the stability in the time of can satisfying the sleeper placement and the requirement of other aspect, simultaneously reduce the processing quantity of insulated joint again, thereby reach the purpose that reduces construction costs.After this technology is used, join 11 longitudinal ribs by road bed board lower floor and calculate (longitudinal reinforcement of railway roadbed is more when being positioned on the bridge), every kilometer insulation processing that can reduce by 33846 point of crossings is saved about 3.5 ten thousand yuan of investments; Simultaneously, owing to reduced work capacity, can reduce manually accelerating construction progress again.The upper strata girder rib of double-block type sleeper is far away apart from concrete surface, for crackle appears in the prevention concrete sleeper, between upper strata girder rib and concrete surface, add one deck stirrup or one deck fine steel rib net, simultaneously, production process according to double-block type sleeper, carrying out the sleeper truss bars when going into mould, it is turned upside down, its upper strata girder rib is placed towards the below, therefore the scope of operation is narrow between template and girder rib for crackproof stirrup (or fine steel rib net), difficulty is installed, thus adopt the stirrup connecting element with girder rib and anticracking stirrup (or the fine steel rib net is fixed), and do not adopt traditional welding or colligation mode, easy for installation, save manpower, material resources.

Description of drawings:

Fig. 1 is a structural representation of the present utility model, Fig. 2 is the birds-eye view of Fig. 1, Fig. 3 is the constructional drawing of the height arrangement (height leg) of sleeper lower floor girder rib in the utility model, and Fig. 4 is the structural representation of anti-cracking stirrup and mattress, the structural representation of Fig. 5 stirrup connecting element.

The specific embodiment:

Shown in Fig. 1-5, lower floor's reinforcing bar at the sleeper girder rib is insulating with bed board longitudinal reinforcement junction, road, its insulation measures comprises that insulating support connects the longitudinal reinforcement of sleeper girder rib and road bed board or in the junction reinforcing bar carried out the insulating coating processing, by sleeper lower floor girder rib being carried out the height adjustment of position, the stability in the time of can satisfying the sleeper placement and the requirement of other aspect, simultaneously reduce the processing quantity of insulated joint again, thereby reach the purpose that reduces construction costs.After this utility model technology is used, join 11 longitudinal ribs by road bed board lower floor and calculate (longitudinal reinforcement of railway roadbed is more when being positioned on the bridge), every kilometer insulation processing that can reduce by 33846 point of crossings is saved about 3.5 ten thousand yuan of investments; Simultaneously, owing to reduced work capacity, can reduce manually accelerating construction progress again.The upper strata girder rib of double-block type sleeper is far away apart from concrete surface, for crackle appears in the prevention concrete sleeper, between upper strata girder rib and concrete surface, add one deck stirrup, simultaneously, production process according to double-block type sleeper, carrying out the sleeper truss bars when going into mould, it is turned upside down, its upper strata girder rib is placed towards the below, therefore the scope of operation is narrow between template and girder rib for crackproof stirrup (or fine steel rib net), difficulty is installed, thus adopt stirrup connecting element (Fig. 4) with girder rib and anticracking stirrup (or the fine steel rib net is fixed), and do not adopt traditional welding or colligation mode, easy for installation, save manpower, material resources.

Claims

1. the anti-cracking device of the adaptability reform of double-block type sleeper and track circuit and sleeper is characterized in that four girder ribs of double-block type sleeper lower floor are carried out the height adjustment (height leg) of position, i.e. two reinforcement location height in the outside, and inboard two reinforcement locations are low; Or inboard two reinforcement location height, two reinforcement locations in the outside are low; Between support rail platform and girder rib, adopt anti-cracking stirrup; Adopt the connection mode of non-welding between anti-cracking stirrup and the sleeper girder rib.