The first stop is a professional truss truss manufacturers, the company produces trusses in line with national production standards, each production process by the design and production of professional and technical personnel to ensure the quality of products, we share with you the following more aspects of the production standard truss . First, from the mechanics analysis, truss shape and simple beam bending moment diagram are similar, the bottom chord axial force distribution, belly bar axial force is small, the most efficient use of materials; ranging from materials and manufacturing analysis, made of wood trusses triangular, trapezoidal or parallel steel truss chord shape, reinforced concrete and prestressed concrete trusses polygon or trapezoid appropriate. The height of the truss span ratio, usually 1/6 to 1/12, in the design manuals and specifications are specific provisions. Truss using a wide range, the choice of form must be considered truss truss uses, material and the support means, working condition, the best choice of the form of its principle is to meet the requirements, it aims to manufacture and installation of the materials and the minimum amount of labor. Truss http://www.bzhangjia.com