PPT-Forces Tension, Compression, shear, and Torsion

Mr Ruddle Construction Technology Lesson Overview In this lesson you will analyze the four forces that can potentially act upon structural objects tension compression shear and torsion The lesson will prepare you to be able to select appropriate materials and designs for different situations based on the types of forces that need to be accounted for. Randy Raugh, PT, DPT. 1. Osteoarthritis (OA). 37.4% > age 60 with knee OA. 2030 - 25% of Americans. Leading cause of immobility/disability > 60. Symptoms: pain, stiffness, noisy and local swelling. Tension, Compression, shear, and Torsion. Mr. Ruddle. Construction Technology. Lesson Overview. In this lesson, you will analyze the four forces that can potentially act upon structural objects: tension, compression, shear and torsion. The lesson will prepare you to be able to select appropriate materials and designs for different situations based on the types of forces that need to be accounted for.. How Forces Affect Different Types of Bridges. Forces on a Beam Bridge. Simplest design (girder bridge). Compression on top of the beam. Tension on bottom of beam. Middle part not much of either forces. A body being squeezed. Forces. Compression. Tension. A body being stretched. Truss. A truss is composed of slender members joined together at their end points.. They are usually joined by welds or gusset plates.. What is a bridge?. A bridge is an elevated structure designed to support the movement of objects over a span. Bridges are made of steel and pure awesomeness. Designed by Leonardo da Vinci . Bike Bridge, Norway. Zdeněk . Padovec. 1. Classic lamination theory. layered laminates. each lamina is orthotropic and quasi. . homogeneous. thickness << width, length plane stress. displacement of particular points are very small. Review. A . truss is considered to be a solid beam full of holes. A truss and beam behave similarly under the same live load.. The point of a truss is to disperse forces as far from the neutral axis as possible in order to resist deflection.. Topics 4-7. Topic 4: Forces, Loads, and Stresses. Types of Forces. Internal. Tension, compression, shear, torsion, bending. External. Dead Load. Permanent force acting on a structure. Includes the weight of the structure itself. A body being squeezed. Forces. Compression. Tension. A body being stretched. Truss. A truss is composed of slender members joined together at their end points.. They are usually joined by welds or gusset plates.. Chapter 6: Concurrent and Parallel Forces. (. Ewen. et al. 2005). Objectives:. Analyze equilibrium in one dimension.. Analyze concurrent forces using force diagrams.. Distinguish between compression and tension.. © 2012 Project Lead The Way, Inc.. Principles of Engineering. A body being squeezed. Compression. Tension. A body being stretched. Forces. A truss is composed of slender members joined together at their end points.. - the influence that tends to change the speed and direction of a stationary or a moving body.  . External Forces . Internal Forces . There are 3 types. of Internal forces . . 1. Compression. 2. Tension. “This material was produced under grant SH20866SH0 from the Occupational Safety and Health Administration, U.S. Department of Labor. It does not necessarily reflect the views or policies of the U.S. Department of Labor, nor does mention of trade names, commercial products, or organizations imply endorsement by the U.S. Government”. The tension members can have a variety of cross sections. The single angle and double angle sections [Fig 2(. a. )] are used in light roof trusses as in industrial buildings. The tension members in bridge trusses are made of channels or I sections, acting individually or built-up [Figs. 2(.