The Hong Kong Polytechnic University Department of Civil & Structural Engineering BEng(Hons) in Civil Engineering Structural Mechanics II Laboratory Instruction Sheet: Shear Center Objective: (1) To find the shear center of various cross sections‚ and (2) To compare them with the theoretical values. Apparatus: Three mild steel frames made of different cross sections (channel‚ equal angle and ‘Z‚ section). Two dial gauges‚ end support brackets‚ load hangers‚ weights. Procedure: 1.
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TITLE : Shear Force Variation with an Increasing Point Load. INTRODUCTION: SHEAR FORCE The shearing force (SF) at any section of a beam represents the tendency for the portion of the beam on one side of the section to slide or shear laterally relative to the other portion. The diagram shows a beam carrying loads . It is simply supported at two points where the reactions are Assume that the beam is divided into two parts by a section XX The resultant of the loads and reaction acting on
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Shear Stress Forces parallel to the area resisting the force cause shearing stress. It differs to tensile and compressive stresses‚ which are caused by forces perpendicular to the area on which they act. Shearing stress is also known as tangential stress. where V is the resultant shearing force which passes through the centroid of the area A being sheared. Problem 115 What force is required to punch a 20-mm-diameter hole in a plate that is 25 mm thick? The shear strength is 350 MN/m2
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rectangular cross-section that is 50 mm wide and 250 mm deep is subjected to shear force of 22 kN‚ axial force (tension) of 16.5 kN and bending moment of 33 kN-m. Calculate and show the stress diagrams in the cross-section. What is the maximum normal stress‚ and where does it occur. What is the maximum shear stress and where does it occur. Problem No. 2 (20 points) Determine the principal stress‚ the maximum in-plane shear stress‚ and average normal stress. Specify the orientation of the element
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Lab report SHEAR FORCE & BENDING MOMENT Bachelor (Hons) of Civil Engineering Course: Structures l (ECS3213) Lecturer: Ir Pan Submission date: 07-11-2013 Group 8: Members No. Name Student ID 1 Diallo Mamadou Aliou SCM-014804 2 Balmeiiz Abilkhaiyrova SCM-014742 3 Elmogdad Merghani Mohamed Elhag SCM-017223 4 Omar Mohamed Abdelgawwad SCM- 018031 5 Salah Mohammed Alesaei SCM-015473 6 Ali Abdulrahman Mohammed SCM-008879 7 Kasem Heiazi SCM-017913 Contents A. Introduction: 3 B. Objectives:
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Experiment 1 : Shear Force Variation with an Increasing Point Load Name …………………………………..…………………. Student Number …………………………………… Aim: Apparatus: Procedure: Observations: Mass‚ g Force (from mass)‚ N Experimental Shear Force‚ N (Reading) 100 200 300 400 500 Table 1 Calculations: Calculations of Theoretical Shear Force at Beam Cut Theoretical Shear Force‚ N Table 2 Analysis
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experiment‚ shear centre‚ was conducted in order to find the shear centre. Finally‚ all the experiments were completed‚ and the objectives were met‚ even with the presence of errors‚ which were mostly due to machinery and apparatus inaccurasy. TABLE OF CONTENTS Report section Page number 1. Introduction 3 2. Theory 4 2.1 Simple Euler Strut 2.2 Unsymmetrical Bending 2.3 Shear Centre
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each material. 2. Two bars are equal length but different materials are suspended from a common support‚ bar A supports 200lbs and bar B supports 2000lbs‚ if the cross sectional area of bar A is 0.00015ft2 and bar B is 0.015ft2‚ compare the strength of bar A and bar B in psi. Assignment 1. A timber shown in figure with a force of 50kN‚ compressive with an angle of 30˚ the diameter of 150mm. Calculate the thickness at pt. b and pt. c with the shearing stress of 10Mpa. 2. Truss shown
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Materials * Helical spring * support * rods * weight hanger * slotted masses * vertical scale * stopwatch. Procedure Part I: Determination of k from Hooke’s Law 1. Suspend the spring from its support. 2. Hook the weight hanger from the bottom loop of the spring and determine the vertical scale reading of the bottom of the weight hanger. 3. Record this as the equilibrium position of the system. 4. Add 5 g to the weight hanger and again record the actual
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W. Fellin · H. Lessmann · M. Oberguggenberger · R. Vieider (Eds.) Analyzing Uncertainty in Civil Engineering Wolfgang Fellin · Heimo Lessmann Michael Oberguggenberger · Robert Vieider (Eds.) Analyzing Uncertainty in Civil Engineering With 157 Figures and 23 Tables Editors a.o. Univ.-Prof. Dipl.-Ing. Dr. Wolfgang Fellin Institut f¨ r Geotechnik und Tunnelbau u Universit¨ t Innsbruck a Technikerstr. 13 6020 Innsbruck Austria em. Univ.-Prof. Dipl.-Ing. Heimo Lessmann Starkenb¨
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