Title:
CONCRETE-FILLED STEEL TUBE SLEEPER SUITABLE FOR BALLASTLESS TRACK
Document Type and Number:
WIPO Patent Application WO/2017/084636
Kind Code:
A1
Abstract:
A concrete-filled steel tube sleeper suitable for a ballastless track comprises two or more sleeper concrete blocks (2) and sleeper connecting pieces (3) for connecting the sleeper concrete blocks (2). The sleeper concrete blocks (2) have blocky structures, are formed by pouring concrete, and are internally provided with embedded parts (5) used for fixing steel rails (1), and reinforcing steel mesh pieces or stirrups connected to the sleeper connecting pieces (3); the sleeper connecting pieces (3) are formed by a plurality of hollow steel tubes which are arranged between the sleeper concrete blocks (2) along the transverse direction; and in a pouring process of the sleeper concrete blocks (2), the hollow steel tubes are internally filled with concrete at the same time, such that concrete-filled steel tubes are formed, and the sleeper connecting pieces (3) and the sleeper concrete blocks (2) are further enabled to form a whole by pouring. When being applied to a concrete sleeper of a ballastless track, concrete-filled steel tubes are taken as sleeper block connecting pieces, and the concrete-filled steel tubes and sleeper concrete blocks (2) are molded into a whole, such that the geometry maintaining ability of the sleeper is effectively improved, and the steel consumption is reduced. The present invention has the advantages of being simple in preparation, high in constructability, and the like.
Inventors:
SUN LI (CN)
WANG SENRONG (CN)
LI QIUYI (CN)
CHEN XIAO (CN)
LIN CHAO (CN)
WANG SENRONG (CN)
LI QIUYI (CN)
CHEN XIAO (CN)
LIN CHAO (CN)
Application Number:
PCT/CN2016/110229
Publication Date:
May 26, 2017
Filing Date:
December 16, 2016
Export Citation:
Assignee:
CN RAILWAY SIYUAN SURVEY & DES (CN)
International Classes:
E01B3/32
Foreign References:
| CN1167183A | 1997-12-10 | |||
| CN1125798A | 1996-07-03 | |||
| CN205171283U | 2016-04-20 | |||
| CN105463948A | 2016-04-06 |
Attorney, Agent or Firm:
WUHAN DONGYU PATENT AGENCY (CN)
Download PDF:
Previous Patent: RECOMBINANT LACTIC ACID BACTERIA AND THE USE THEREOF IN ORAL UNIVERSAL INFLUENZA VACCINE
Next Patent: PROSTHETIC THUMB
Next Patent: PROSTHETIC THUMB