WOOD DESIGN REVIEW KNOWLEDGE BASE REQUIRED: STRENGTH OF MATERIALS STEEL DESIGN SOIL MECHANICS REVIEW OF TIMBER DESIGN BENDING MEMBERS DEFLECTION MEMBERS.

Slides:



Advertisements
Similar presentations
Beams Stephen Krone, DSc, PE University of Toledo.
Advertisements

2.2 STRUCTURAL ELEMENT BEAM
REVIEW OF STEEL DESIGN KNOWLEDGE BASE REQUIRED: STRENGTH OF MATERIALS
Chp12- Footings.
Parts of typical slab formwork
Timber Structures Sawn Lumber Glulam Plywood.
CE A434 – Timber Design Structural Behavior.
Reinforced Concrete Flexural Members
Structural Mechanics 4 Shear Force, Bending Moment and Deflection of Beams 20 kN RA RB 3.00m 2.00m.
CEA UNIT 3 TERMS & DEFINITIONS. BEAM A structural member, usually horizontal, that carries a load that is applied transverse to its length.
Beams Extremely common structural element
Bending Moments A bending moment exists in a structural element when an external force is applied to the element so that the element bends (or wishes to.
Chp.12 Cont. – Examples to design Footings
Wall Form Design Example (Continued)
WOOD, SOILS, AND STEEL INTRO KNOWLEDGE BASE REQUIRED: STRENGTH OF MATERIALS STEEL DESIGN SOIL MECHANICS REVIEW OF TIMBER DESIGN BENDING MEMBERS DEFLECTION.
Lecture #1 Student Objectives: * You should know what the instructor expects from you to final grade * You should be able to assess your level of knowledge.
Engineering with Wood Tension & Compression
Shear - Tensile - Compression Stresses Slip Ted 126 Spring 2007.
Feasibility MSA P Base Plate Feasibility 3 plastics were looked at for MSA mounting board material: ABS, Acrylic, and polypropylene. Due to cost.
BEARING OR CRUSHING Bearing Stresses (Compression Perpendicular to the Grain) Allowable stresses for compression perpendicular to the grain are available.
Copyright © 2011 Pearson Education South Asia Pte Ltd
CTC / MTC 222 Strength of Materials
Slab Form Design.
Barrios Laura Bigott Dairet Vertical structure Solid Defines an area Delineates a building Types of walls: Load-bearing wall: supports.
Mechanics of Materials(ME-294)
University of Sydney – Structures SECTIONS Peter Smith & Mike Rosenman l The size and shape of the cross- section of the piece of material used l For timber,
Beam Analysis Civil Engineering and Architecture
BSE 2294 Animal Structures and Environment
Lecture 21 – Splices and Shear
Lecture 5 January 31,  Sudhir K. Jain, IIT Kanpur E-Course on Seismic Design of Tanks/ January 2006 Lecture 5/ Slide 2 In this Lecture Impulsive.
Design Example The 10” TH. wall system shown in the figure below is to be checked for a service gravity load of 3 Kips/ft and a lateral load of 25 Kips,
BEAMS AND COLUMNS.
Chapter 29 Determining Simple Beams. 2 Links for Chapter 29 Loads & Supports Properties of Lumber Beam Design Related Web Sites.
Jurg Conzett – Traversina Bridge
LECTURE #1 Book Overview Read Chapt. 1(skip sect. 1.9)
WORKSHEET 4 BEAMS.
Load Resistance – The Structural Properties of Materials Chapter 4.
WOOD DESIGN REVIEW KNOWLEDGE BASE REQUIRED: STRENGTH OF MATERIALS STEEL DESIGN SOIL MECHANICS REVIEW OF TIMBER DESIGN BENDING MEMBERS DEFLECTION MEMBERS.
Strength of Material-1 Introduction. Dr. Attaullah Shah.
REVIEW LECTURE #1 KNOWLEDGE BASE REQUIRED: STRENGTH OF MATERIALS
Structural Curriculum for Construction Management and Architecture Students 1 Prepared by: Ajay Shanker, Ph.D., P.E. Associate Professor Rinker School.
Chapter 13 Concrete Form Design. SLAB FORM DESIGN Method WALL AND COLUMN FORM DESIGN DESIGN OF LATERAL BRACING.
Shear Stresses in Concrete Beams
Effective Stress Soil is a multi phase system
PLAN Square Base Plate, A1, in2 Finding Size of Plate ( __in x __in) FINDING THICKNESS OF PLATE (__in) Square Concrete Pedestal, A2, in2 Basic Sizing of.
Beam Design Beams are designed to safely support the design loads.
SOIL DESIGN REVIEW KNOWLEDGE BASE REQUIRED: SOIL MECHANICS.
STEEL DESIGN KNOWLEDGE BASE REQUIRED: STRENGTH OF MATERIALS STEEL DESIGN REVIEW OF TIMBER DESIGN BEARING PROBLEM TIMBER DESIGN SOIL MECHANICS REVIEW OF.
INTRODUCTION TO FORM DESIGN (CHAPTER ONE) WHAT KNOWLEDGE BASE SHOULD UNDERSTAND TO HANDLE FORM AND BRACING DESIGNS? STRENGTH OF MATERIALS STEEL DESIGN.
Design of Gantry Girders
Engineering Analysis & Updated Layout Drawings SofaKing 9 March 2005.
The Engineering of Foundations
WALL Barrios Laura Bigott Dairet
62323: Architectural Structures II
Design of Gantry Girders
Tilt N’ Store Design Analysis
contents Design of beams (week 11,12,13), (10,17,24 Nov.)
Lecture 39 - Design of Two-Way Floor Slab System
FOR 5TH SEMESTER DIPLOMA IN CIVIL ENGINEERING
Revision for Mechanics of Materials
BEAM BY WSM BY AQUIB ZAFAR Assist Professor ACET,Nagpur
Structure II Course Code: ARCH 209 Dr. Aeid A. Abdulrazeg.
CONNECTION Prepared by : Shamilah
REVIEW OF STEEL DESIGN KNOWLEDGE BASE REQUIRED: STRENGTH OF MATERIALS
Tilt N’ Store Design Analysis
Lecture 9 – Deformation and Damage
An-Najah National University
Chapter 13 Concrete Form Design.
KNOWLEDGE BASE REQUIRED:
KNOWLEDGE BASE REQUIRED:
Presentation transcript:

WOOD DESIGN REVIEW KNOWLEDGE BASE REQUIRED: STRENGTH OF MATERIALS STEEL DESIGN SOIL MECHANICS REVIEW OF TIMBER DESIGN BENDING MEMBERS DEFLECTION MEMBERS SHEAR MEMBERS COLUMN MEMBER BEARING PROBLEM TIMBER DESIGN

BEARING PERPENDICULAR TO THE GRAIN- fc(perp) REVIEW OF TIMBER: l b +3/8 lblb P where l b = bearing length Note: When the bearing length is less than 6 in. and when the distance from the end of the beam to the contact area is more than 3 in., the allowable bearing stress may be increased by Cb.

The deformation limit of.04 inch. is provided by ASTM D143 provides adequate service in typical wood-frame construction. Special Cases In some designs where the deformation is critical, a reduced value can be applied. ( WWPA P.9 Table F) Deflection can be designed for a reduce limit of.02 in. (also refer to P.251 in text) Fc (perp.02) = 0.73 Fc (perp.04) Sample Problem: Given a Hem-Fir Select Structural with 11,000#s on supports: a) check for the bearing of a cantilever support. b) Assume critical deflection for heavy impact loads at end of cantilever.

2 - 2x12 4x8 > 3” 3.5” 1.5” Fc(perp) = 405 psi lb= 3” therefore we can increase bearing stress, but lets be conservative and use l b as recommended N.G.

We have to increase bearing V 11,000 Req’d Area= = = 27 sq in. Fc(perp) 405psi add 2-2X12 X 12 A= 6 X 3.5 = 21 sq in < 27 sq in NG 2-3X12 X 12 A=[(2X1.5)+(2X2.5)](3.5)= 28 sq in > 27 sq in OK b) 4x8 bearing problem is O.K., now solve for critical deflection with limit of.02 inch F’c(perp.02) = 0.73 (405) F’c(perp.02)= psi Req’d Area = 11000/ =36.5 sq in add 2- 4x12x12 A=[(2X3.5)+(2X1.5)](3.5)= 35 sq in N.G. use 2- 6x sq in. or a steel plate 3.5X10.5

REVIEW OF SOIL MECHANICS VERTICAL STRESSES LATERAL STRESSES REVIEW LECTURE #4 BASIC SOIL MECHANICS REVIEW: = UNIT WEIGHT OF SOIL (PCF, KN/m 3 ) = SATURATED UNIT WEIGHT OF SOIL = BOUYANT UNIT WEIGHT OF SOIL = UNIT WEIGHT OF WATER(62.4PCF,9.81 KN/m 3 )

REVIEW LECTURE #4(CONT) BASIC SOIL MECHANICS REVIEW: = - VERTICAL STRESSES: = VERTICAL STRESS (PSF, TSF,KN/m 2 ) CALCULATE TOTAL (TOTAL STRESS) Ka=0.5

REVIEW LECTURE #4(CONT) BASIC SOIL MECHANICS REVIEW: VERTICAL STRESSES: EFFECTIVE VERTICAL STRESSES:

REVIEW LECTURE #4(CONT) BASIC SOIL MECHANICS REVIEW: LATERAL STRESSES: LATERAL FORCE:

REVIEW LECTURE #4(CONT) BASIC SOIL MECHANICS REVIEW: LATERAL FORCES:

REVIEW LECTURE #4(CONT) BASIC SOIL MECHANICS REVIEW: LATERAL FORCES: TO FIND RESULTANT SUM FORCES: R TO FIND RESULTANT LOCATION TAKE MOMENT:y

REVIEW LECTURE #4(CONT) BASIC SOIL MECHANICS REVIEW: LATERAL FORCES: TO FIND RESULTANT SUM FORCES: R TO FIND RESULTANT LOCATION TAKE MOMENT:y 472.5# 1575# 1500#

REVIEW LECTURE #4(CONT) BASIC SOIL MECHANICS REVIEW: LATERAL FORCES: R= =3547.5# LATERAL ARM: