Truss gantry crane

With light weight , small frontal area , large carrying capacity and other characteristics, are widely used in factories , railway stations , ports, power plants, construction sites and other steel crane areas of production. Rationality and reliability of its security architecture design , and the ability to work directly determines the efficiency of the crane . Now most companies by virtue of experience to design truss gantry crane , the utilization of steel is low, and detailed design calculations and relatively cumbersome. Therefore, the steel truss crane design and analysis , has become the focus of design in the field of research , and the main beam is a major part of the door frame . In this paper, the use of modern design methods, lifting the total mass of 60 t, span 40 m, lifting height of 16 m, main beam structure hoist gantry crane working-level A3 truss gantry crane optimization. Main beam structure optimization mathematical model of optimization objective function optimization goals gantry crane metal structure is the total mass of the smallest structure itself , which is a parameter VOLUME minimum value . Design variables need to optimize the design variables are independent variables objective function and state function . Optimization process is optimized by constantly changing variable values ​​to achieve. Truss girder gantry crane main components, mainly steel, link8 unit can be modeled .