considering beams in which either no lateral restraint or only intermittent lateral restraint is provided to the compression flange Dr. A Aziz Saim 2010 EC3 Unrestrained Beam 6 Lateral Torsional Buckling Dr. A Aziz Saim 2010 EC3 Unrestrained Beam 7 Lateral Torsional Buckling Figure 3-1 shows an unrestrained beam subjected to load increment. The compression flange unrestrained and beam is not stiff enough. There is a tendency for the beam to deform sideways and twist about the longitudinal
Premium Buckling Beam Column
provided is 12mm *min diameter link provided is 8mm d d = h – Cnom – Ølink – Øbar/2 Neutral Axis Lies in Flange Design as a rectangular section Size of beam (bf X d) Z = d (0.5+(0.25 – (k/1.134))1/2 0.95 d‚ use 0.95d as z value Asreq = M/0.87fykZ Provide main reinforcement Asmin = 0.26fctmbd/fyk < 0.0013bd Asmax = 0.04Ac Neutral Axis Below Flange Design as a flange section Muf = 0.167fckbwd2+ 0.567 fck(bf–bw) (d-(hf/2)) If M < Muf – singly reinforced If M > Muf – doubly
Premium Beam
Case Study Analysis Activity Title: Name: Date: Cause(s) of Accident The probable cause to the crash of American Airlines Flight 191 is the asymmetrical stall and the ensuing roll of the aircraft due to the un-commanded retraction of the left wing outboard leading edge slats and the loss of stall warning and slat disagreement indication systems‚ resulting from maintenance-induced damage leading to the separation of the number one engine and pylon assembly at a critical point during take-off
Premium Wing Airfoil Air safety
Table of Contents 1. Executive Summary............................................................................... 2 2. Introduction ............................................................................................ 3 2.1 Aims and Objectives.................................................................................................. 3 2.2 Methodology.............................................................................................................. 3 2.3 Description
Premium Risk assessment Occupational safety and health Risk
Influence of lips on thin-walled sections‚ ThinWalled Struct 16 (1–4) (1993)‚ pp. 145–178. 26. Thong‚ C.M.‚ 2003‚ Development of New Cold-formed Steel Sections for Roof Truss System‚ Master Thesis‚ UTM. 27. Winter G.‚ Strength of thin steel compression flanges. Trans. Am. Soc. Civ. Engrs. 112 (1947)‚ pp. 527–554. 28. Yang K.C. ( 2004)‚ Journal of Construction Steel Research. Department of Civil Engineering‚ The University of Hong Kong‚ Pokfulam Road‚ Hong Kong.
Premium Steel Finite element method
STUDENTS’ INDUSTRIAL WORK EXPERIENCE SCHEME (SIWES) REPORT AT DANGOTE SUGAR REFINERY PLC SHED 20‚ APAPA –WHARF‚ APAPA LAGOS BY ADENIYAN OLUWASEYI ADEDEJI 070406007 PRESENTED TO THE DEPARTMENT OF METALLURGICAL & MATERIALS ENGINEERING UNIVERSITY OF LAGOS JUNE - NOVEMBER 2010 CERTIFICATION This is
Premium Sugar Welding Sucrose
PREVENTIVE PROSTHODONTICS Dr. Antalika Sarkar‚ post graduate student‚ Department of Prosthodontics‚ SSCDS CONTENTS What is prevention?? Statement of the problem What is preventive prosthodontics? Levels of Prevention Overdentures Vital v/s non vital root resection Immediate dentures Conclusion Refrences “Perpetual preservation of what remains is more important than the meticulous replacement of what has been lost” - De Van WHAT IS PREVENTION ? The goals of medicine are
Premium
1) Wrinkling in the flange. Wrinkling in a drawn part consists of a series of ridges that form radially in the undrawn flange of the work part due to compressive buckling. Wrinkling in the wall. If and when the flange is drawn into the cup‚ these ridges appear in the vertical wall. Tearing. Tearing is an open crack in the vertical wall‚ usually near the base of the drawn cup‚ due to high tensile stresses that cause thinning and failure of the metal at this location. This type of failure can also
Premium Buckling Elasticity Compressive stress
screws with the transmission in neutral and lift the boot up the shift lever. * 8 Mark the driveshaft and rear axle companion flange on the differential using the chalk‚ then disconnect the driveshaft from the flange by removing the bolts with a metric socket wrench. * 9 Pull the driveshaft toward the rear of the vehicle and disconnect it from the transmission output flange‚ using a metric socket wrench to remove the bolts. * 10 Disconnect the speedometer cable from the transmission by turning the
Premium Socket wrench Nut Screw
24/7/2012 “FLIGHT ENGINE DOWN” Air Travel Most effective and safest forms of transport < 1 for every 2 x 109 personmiles flown Air crash – One of worst situation Team Members: Seran Karikalan 1002764 Sivaguru S/O Sivagnanam 1003260 Ng Aiting 1067138 DARE 3B 24 Number of lives it takes with it Human Error Manufacturers to Engineers No one wishes for air crashes Synopsis On 25th May 1979‚ 15:00Hrs A McDonnell Douglas (MD) DC-10 American Airlines Took-off from Chicago O’Hare
Premium Air safety National Transportation Safety Board Aviation accidents and incidents