Concrete crosstie

Abstract

A monoblock concrete crosstie for railway tracks that achieves a high performance in operation includes a steel structure that is formed from ultra-resistant high strength steel plates embedded in a concrete element and having pre-stressed cold rolled wires with ends that form button head knots which are anchored to the steel plates. The crosstie includes rail seats with a convex channeled formation that is mateable with an extending member of a faceplate wherein the railseat has a width less than the width of the faceplate, and a center of the face plate has a first distance from a center of the concrete element and a center of the rails seat has a second distance from the center of the concrete element, the first distance greater than the second distance.

1 - 18 . (canceled) 
     
     
         19 . A device comprising:
 an internal structure having one or more reinforced, u-shaped steel plates, each steel plate having an associated first tensioning structure and second tensioning structure, the first tensioning structure and the second tensioning structure configured to be coupled to a tensioning apparatus to apply tension to a plurality of wires embedded in high strength concrete;   a rail seat formed in the high strength concrete;   a face plate assembly having an extending member configured to mate with the rail seat; and   wherein the rail seat has a width less than a width of the face plate assembly and the face plate assembly is asymmetric relative to the rail seat.   
     
     
         20 . The device of  claim 19  wherein the device has a first horizontal plane and the face plate assembly has a second horizontal plane wherein the second horizontal plane is disposed at an angle relative to the first horizontal plane. 
     
     
         21 . The device of  claim 19  wherein the device has a first horizontal plane and the face plate assembly has a second horizontal plane wherein the second horizontal plane is disposed at an angle less than 90 degrees relative to the first horizontal plane. 
     
     
         22 . The device of  claim 19  wherein the rail seat and the extending member have a convex shape. 
     
     
         23 . The device of  claim 19  wherein the rail seat and the extending member have a convex shape with chamfered edges. 
     
     
         24 . The device of  claim 19  wherein the face plate assembly further includes a rubber gasket. 
     
     
         25 . The device of  claim 19  wherein the face plate assembly further includes a rubber gasket interfaced between a fastener plate and clip and the device. 
     
     
         26 . The device of  claim 19  wherein the internal steel structure is formed by two or more first u-shaped plates at a first end. 
     
     
         27 . The device of  claim 19  wherein the internal steel structure is formed by two or more first u-shaped plates at a first end and two or more second plates at a second end. 
     
     
         28 . The device of  claim 19  wherein the internal steel structure is formed by two or more first u-shaped plates at a first end and two or more second plates at a second end, each of the first u-shaped plates coupled to one of the second plates by a plurality of pre-stressed wires. 
     
     
         29 . The device of  claim 19  wherein the internal steel structure is formed by two or more first u-shaped plates at a first end and two or more second plates at a second end, each of the first u-shaped plates coupled to one of the second plates by a plurality of pre-stressed wires, wherein each wire is tensioned to at least 70% (seventy percent) of its elastic capacity. 
     
     
         30 . The device of  claim 19  wherein the internal steel structure is formed by two or more first u-shaped plates at a first end and two or more second plates at a second end, each of the first u-shaped plates coupled to one of the second plates by a plurality of pre-stressed wires, wherein each wire is tensioned to at least 70% (seventy percent) of its elastic capacity, wherein the plurality of pre-stressed wires are arranged in parallel. 
     
     
         31 . The device of  claim 19  wherein the internal steel structure is formed by two or more first u-shaped plates at a first end and two or more second plates at a second end, each of the first u-shaped plates coupled to one of the second plates by a plurality of pre-stressed wires, wherein each wire is tensioned to at least 70% (seventy percent) of its elastic capacity, wherein the plurality of pre-stressed wires are arranged in parallel, and wherein each of the plurality of pre-stressed wires is secured to one or more of the plates by pressed button head type knots located at the wire ends. 
     
     
         32 . The device of  claim 19  wherein the steel plates of the internal steel structure are embedded in the concrete and apply a compressive force to the concrete, and the plurality of wires transfer a load to the concrete by adherence. 
     
     
         33 . The device of  claim 19  wherein the steel plates comprise two or more plates at each end that are configured to apply a compressive force to the concrete. 
     
     
         34 . The device of  claim 19  wherein the steel plates comprise two or more first plates at a first end and two or more second plates at a second end. 
     
     
         35 . The device of  claim 19  wherein each of the first plates coupled to one of the second plates by a plurality of pre-stressed wires. 
     
     
         36 . The device of  claim 19  wherein each wire is tensioned to at least 70% of its elastic capacity. 
     
     
         37 . The device of  claim 19  wherein the plurality of wires are arranged in parallel. 
     
     
         38 . The device of  claim 19  wherein each of the plurality of wires is secured to one or more of the plates.