PPT-Calculating Truss 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. 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. 8. th. . How Does a Bridge Stay Up?. Bridges don. ’. t always Stay . U. p. Forces act on a bridge. Engineers must design bridges that account for these forces.. Forces can come from many sources.. Chapter 4 Analysis of Structure. Introduction. Structure – connected system of members designed to support loads safely or to transfer forces effectively. Analysis of structures involves analyzing the equilibrium of the entire structure, part of the structure, or an individual member. Velocity & Slope. Calculating Velocity Graphically. I. Velocity Activity. Measure the speed of a steel bearing that is rolling across your table. II. Velocity and Slope. II. Velocity and Slope.  . Chapter 7. University of Engineering & Technology, Taxila. 1. Prof Dr Z. A. Siddiqi. PANEL LOADS. . Concentrated load applied at the interior panel point of the truss in kN is called . Panel Load (P). Chapter 7. University of Engineering & Technology, Taxila. 1. Properties of Trusses. . Truss is a frame structure in which all the members have axial forces due to the following facts:. Members are arranged in triangles for stability.. Chapter 7. University of Engineering & Technology, Taxila. 1. Prof Dr Z. A. Siddiqi. LOADS. ON TRUSS ROOF. . All the gravity or vertical loads acting on the building trusses are first calculated in terms of the loads acting per one square meter of the horizontally projected area (plan area) having the units kg/m. Optimiz. Objectives. At the end of this session you will . be able to :. State the DOT rules used to calculate a scheduled ETA in . Optimiz. State the Optimiz system default rules used to calculate a scheduled ETA . Reading Quiz. Applications. Simple Trusses. Method of Joints. . Zero-force . Members. Concept Quiz. Group Problem Solving. Attention Quiz. Today’s Objectives. :. Students will be able to:. a) Define a simple truss.. Reading Quiz. Applications. . Method of Sections. Concept Quiz. Group Problem Solving. Attention Quiz. Today’s Objectives. :. Students will be able to determine:. Forces in truss members using the method of sections.. a Truss-equivalence Based Indexing Approach. Esra. . Akbas. , . Peixiang Zhao. Computer Science, Florida State University. zhao@cs.fsu.edu. Outline. Introduction. State-of-the-art . solutions. Index-free, TCP-Index (SIGMOD’14). What is a force?. A force is a push or a pull. . Forces make objects accelerate. What are the two general types of forces? How are they different?. Type 1: Contact Forces. Force as a result of object touching. . Scalars and vectors. . Types of forces. . Resultant of forces. . Equilibrium of particles. Scalar and Vectors. . Scalar - . a physical quantity that is completely described by a real number. Methods of Analysis. 2. Method of Joints. Method of Sections. The method of joints utilizes the force equations of equilibrium for each joint. . Analysis normally begins at a joint where at least one force is known and not more than two forces are unknown for plane trusses (or not more than three forces are unknown for space trusses).