Design And Application Technology Of Steel Truss Type Coal Handling Trestle Bridge

China has a wealth of coal resources,the coal industry is China’s energy industry is an important industry,is to protect the national energy security and stability of the supply base.In the new economic development situation,the coal industry has entered a new stage of development.With the trend of coal production to mechanization,informatization,intelligence and green mining,the new theory of design and design of mine special structure is put forward.The coal transportation bridge is an important part of coal mine ground construction and power plant construction,Which has important and positive significance for the research of engineering application and design optimization.In this paper,the steel truss structure of the bridge as the object of study,combined with engineering examples,that is,Shaanxi Fushui Tsui coal mine limited liability company in the expansion project 5 #,6 # transfer station and the main plant to the product warehouse coal belt corridor,the use of related The design manual,the design manual,the atlas,the teaching material and the STS calculation software,carries on the detailed analysis to each of the routine design,uses the illustrated method to summarize some experience the practice,the design step key and the optimization design suggestion.In this paper,the methods of manual analysis and machine calculation are used to analyze the factors such as theoretical internal force analysis,general layout,internode arrangement,load statistics,bar design,node design,bearing design,modeling steps,The results of the analysis,the program than the selection,cross-section optimization of these key links,than the selection of economic and reasonable design methods and programs to make the bridge reasonable force,safe and applicable,energy saving,staff comfort,ease of construction,construction efficiency,For the coal mine ground production system construction to bring good economic and environmental protection benefits.Finally,the steel structure has the advantages of poor corrosion resistance and poor fire resistance,emphasizes the necessity of corrosion and fire prevention of steel trusses,and introduces some economical and practical treatment methods of steel truss anticorrosion fire prevention.