Lecture 1 Advance Design of RC Structure
Advance Design of RC Structure
Lecture 1
Course Syllabus
Warm welcome to everybody at our inspiring institute
University of Palestine
Lecture 1 Advance Design of RC Structure
SubjectCourse: Advance Design of RC Structure
Prerequisite: Design II
Class Room: BK-
202Semester:
2nd
2009
Grads: Assignments
30%Midterm exam
30%Final exam
40%
Tutor: M.Sc. Malek Abuwarda
Lecture 1 Advance Design of RC Structure
Instructional Objectives Upon completion you would be able to: Workout the equivalent seismic load & wind
load on a building DesignReinforced concrete shear wall, that can
withstand the lateral load of the equivalent seismic load & wind load Retaining wallRectangular and circular tanksMat foundation
Lecture 1 Advance Design of RC Structure
Course Outline Seismic designIntroductionGeneral informationCauses of earthquakeSeismic wavesThe effects of seismic on structures
Method of analysis of structures under seismic loadEquivalent static load methodSymmetrical shear wallUnsymmetrical shear wallCore
Lecture 1 Advance Design of RC Structure
Course Outline Continued . . .
Using computer program SAP2000 or ETABS to analysis the equivalent static load on tall building I if applicable Shear wall design
Wind LoadWind pressureWind load & distribution
Retaining wallTypes Geotechnical designStructural design
Lecture 1 Advance Design of RC Structure
Course Outline Continued . . . TanksGeneral informationRectangular tankCircular tank
Mat foundationGeneral informationGeotechnical designStructural design
Lecture 1 Advance Design of RC Structure
Course Materials Lecture notesPower points slidesHandout sheets
Textbooks
Uniform Building Code UBC 1997
International Building Code IBC 2002ACI-
318 2005Reinforced Concrete Design Dr. Samir ShihadaEarthquake Engineering: Application to Design.
Charles K. Erdey
Lecture 1 Advance Design of RC Structure
What Causes Earthquake The Earth & its interior
Inner Core
1290 km Radius Outer Core
2200 km thicknessThe Mantle
2900 km thicknessCrust
5-
40 km thickness
The circulationConvection currents develop in the
viscous Mantle, because of different pressure and temperature between the Crust & the Core That result in circulation of the
Earths mass. Hot Lava comes out & the cold rock mass goes into the Earth
Lecture 1 Advance Design of RC Structure
What Causes Earthquake Continued . . .n Plate Tectonics Flows of Mantle material cause the crust to slide
on the hot molten outer core
Sliding of earth mass takes place in pieces called Tectonic Plates
Lecture 1 Advance Design of RC Structure
What Causes Earthquake Continued . . . The surface of the earth consists of seven major
Tectonic Plates and many smaller ones Plates move in different directions
Average movement of plate boundary 2-
10 cm per year
Lecture 1 Advance Design of RC Structure
What Causes Earthquake Continued . . .n The Earthquake Rocks are made of elastic material Elastic strain energy is stored Rocks reach their strength Sudden movement takes place Crack in the rocks formed
Lecture 1 Advance Design of RC Structure
What Causes Earthquake Continued . . . Sudden slip taken place & release the enormous elastic
strain energy stored The sudden slip (EARTHQUAKE) causes a violent
shaking of the earth & the released energy spreads out through SEISMIC WAVES that travel in all direction through the earths layers
n Seismic WavesTwo types of waves Body waves Surface waves
Lecture 1 Advance Design of RC Structure
What Causes Earthquake Continued . . .n Body Waves Primary waves (P-Waves) Extension & compression action
Speed 4.8 km/s (fastest) Secondary waves (S-Waves) Vertical & horizontal action
Speed 3 km/s
n Surface Waves Love waves Horizontal component action
Rayleigh waves Vertical component action
Lecture 1 Advance Design of RC Structure
What Causes Earthquake Continued . . . Measuring instruments
Seismograph
Some typical recorded
Lecture 1 Advance Design of RC Structure
Effects of Seismic on Structures Inertia force in structure
Seismic waves shaking the groundBuilding base moves with the groundUpper body has tendency to stay in its original positionWalls & columns drag the upper body along with them
Lecture 1 Advance Design of RC Structure
Effects of Seismic on StructuresIts much like when the ground moves, the building is
thrown backward or the upper body experience a force called INTERIA FORCE
Newtons second law of motionUpper body has a mass mExperience an acceleration aThen F (inertia force) = m.a
a
F
I That means the more mass the greater F (inertia force) you get
F so the lighter buildings sustain seismic better
Lecture 1 Advance Design of RC Structure
Effects of Seismic on Structures Effect of deformations in structures
Columns undergo relative movement between their endsTransfer the inertia force from the upper body of the
building to the ground
Lecture 1 Advance Design of RC Structure
Effects of Seismic on StructuresColumns resist deformation so develop inertia forces,
which called stiffensWalls & columns are the most critical elements in
resisting seismic
Lecture 1 Advance Design of RC Structure
Effects of Seismic on Structures Horizontal & vertical shaking
Earthquake shakes the ground in all directionGround shakes randomly back and
forth (- & +) along in X, Y and Z directionAll structures are primarily
designed to curry downward force, which called gravity loadfactor of safety, used in the design
of structures, magnifying the design gravity load (dead load + live load + other loads)
x
YZ
Lecture 1 Advance Design of RC Structure
Effects of Seismic on Structures Horizontal & vertical shaking
That means most of the designed structures adequate against vertical shaking
The horizontal shaking along X & Y direction (both + & - direction of each) is our big concern as a structural designer
Lecture 1 Advance Design of RC Structure
Discussions
Any Question?
Notes
Advance Design of RC StructureSubjectInstructional Objectives Course OutlineCourse Outline Continued . . .Course Outline Continued . . .Course MaterialsWhat Causes EarthquakeWhat Causes Earthquake Continued . . .What Causes Earthquake Continued . . .What Causes Earthquake Continued . . .What Causes Earthquake Continued . . .What Causes Earthquake Continued . . .What Causes Earthquake Continued . . .Effects of Seismic on StructuresEffects of Seismic on StructuresEffects of Seismic on StructuresEffects of Seismic on StructuresEffects of Seismic on StructuresEffects of Seismic on StructuresDiscussions