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The technology principle The track is subject to variable vertical, transverse and longitudinal static and dynamic loads, which are transferred from the rail to the roadbed by sleeper and roadbed. By means of mechanical theory, the stress and strain generated by each component of the track under various load conditions are analyzed and studied to determine its bearing capacity and stability. Track mechanics analyses the force and deformation of track structure under the action of locomotive and vehicle, as well as the influence of track structure diseases on track damage and train operation, so as to provide a basis for the design of track structure and the formulation of track management standards. The tracks 1.The structure The track is composed of trackbed, sleeper,  rail , connecting parts, anti-climbing equipment, and turnout. 2.Railway track Originally cast rails, developed into i-rails, the standard gauge (see track geometry) used by most of the world's railways in the 1980s

Crane track is a combined field of mechanical engineering and civil engineering. Generally speaking, mechanical engineers are only concerned with operational equipment issues, and civil engineers are only concerned with the safety and reliability of track construction. As for the part in between, crane tracks always have some problems due to the lack of professional engineers and technicians. At present, most crane track fixing schemes are designed according to the standard drawings of railway tracks. The traditional way of rail connection is to use rail connecting rods, but crane rails are better to use rail fastening system. In fact, with the update of technology, the crane tonnage is getting bigger and bigger, and the working frequency is getting higher and higher. The traditional rail fastening system can not adapt to the requirements of crane development, so it is important to understand the crane rail fastening system. In China, the traditional rail fastening system has low inves