Civil Diary Online

Definition of Continuous frame and Truss Continuous frame A continuous frame is a structure which is dependent for its stability and load carrying capacity, upon the ability of one or more of its joints to resist moment. In other words, one or more joints in continuous frame are more or less rigid. Truss or articulated structures A truss or an articulated structure, composed of bars, connected by frictionless pins at joints, and arranged so that the area enclosed within the boundaries of the structure is sub-divided by the bars into geometrical figures usually triangles. Or A truss is an assemblage of members or bars forming a framework of different geomteric figures usually triangles

✡  PRIMAR REQUIREMENTS OF FORMWORK REQUIREMENTS OF FORMWORK REQUIREMENTS OF FORMWORK – QUALITY, SAFETY & ECONOMY In the selection of materials for formwork, the three general principles  of quality ,  safety  and  economy must be paramount. Material quality can ensure safety, and significantly contributes to the achievement of economy. Formwork failure can result in loss of life and always causes catastrophic financial loss. Some general guidelines can be given for form face and framing materials, and for the associated components. These can be covered under the headings of Strength Stiffness Impact Resistance Durability Weight Accuracy Compatibility Insulation 1.   STRENGTH The material strength must be adequate to resist the forces anticipated. This is not only a structural design requirement, but also an essential safety aspect. 2.   STIFFNESS The structural movement under load must be small and predictable....