Ghazvin - Rashat - Anzaliy Railway Bridge DESIGN OF LEAD RUBBER BEARINGS STRUCTURAL - Printable Version +- Civil Engineering Association (https://forum.civilea.com) +-- Forum: Civil Engineering Resource (https://forum.civilea.com/forum-1.html) +--- Forum: Civil Engineering Documents (https://forum.civilea.com/forum-89.html) +---- Forum: Calculation Notes & Analysis Files (https://forum.civilea.com/forum-80.html) +---- Thread: Ghazvin - Rashat - Anzaliy Railway Bridge DESIGN OF LEAD RUBBER BEARINGS STRUCTURAL (/thread-40038.html) |
Ghazvin - Rashat - Anzaliy Railway Bridge DESIGN OF LEAD RUBBER BEARINGS STRUCTURAL - david-smith - 11-27-2012 Ghazvin - Rashat - Anzaliy Railway Bridge DESIGN OF LEAD RUBBER BEARINGS STRUCTURAL CALCULATIONS Author: CALCULATIONS BY: Ernesto De Peralta | Size: 0.6 MB | Format: PDF | Quality: Original preprint | Publisher: Holmes Consulting Group | Year: 2011 | pages: 28 | ISBN: PROJECT NUMBER: 107347
TABLE OF CONTENTS 1. SUMMARY OF CALCULATIONS........................................................................................... 4 1.1 CHANGES IN REVISION ................................................................................................... 4 1.2 EFFECT OF INCREASED RUBBER SHEAR MODULUS...................................................................... 4 1.2.1 ISOLATION SYSTEM DISPLACEMENTS AND FORCES............................................................. 4 1.2.2 DYNAMIC PROPERTIES AND DAMPING ........................................................................... 5 1.2.3 TEST CONDITIONS.................................................................................................. 5 2. PROJECT REQUIREMENTS ................................................................................................... 7 2.1 REFERENCES................................................................................................................. 7 2.2 DESIGN CONDITIONS..................................................................................................... 7 3. PROCEDURES USED FOR BEARING DESIGN.......................................................................... 9 3.1 DEFINITIONS ................................................................................................................ 9 3.2 CALCULATION OF EQUIVALENT SHEAR STRAINS ..................................................................... 10 3.3 LIMITING STRAIN CRITERIA............................................................................................... 11 3.3.1 AASHTO LIMITING STRAIN CRITERIA........................................................................... 11 3.4 VERTICAL LOAD STABILITY ................................................................................................ 11 3.4.1 AASHTO VERTICAL LOAD STABILITY ............................................................................ 11 3.5 AASHTO LATERAL RESTORING FORCE ................................................................................ 13 3.6 LATERAL STIFFNESS PARAMETERS FOR BEARING....................................................................... 13 3.7 SYSTEM PROPERTY MODIFICATION FACTORS......................................................................... 15 3.7.1 AGE CHANGE IN PROPERTIES ................................................................................... 16 3.7.2 TEMPERATURE CHANGE IN PROPERTIES......................................................................... 17 3.7.3 MODIFICATION FACTORS USED FOR DESIGN................................................................. 17 4. BEARING DESIGN CALCULATIONS.................................................................................... 19 4.1 ANALYSIS RESULTS USED FOR ISOLATION SYSTEM DESIGN......................................................... 19 4.2 DESIGN LOADS ........................................................................................................... 20 4.3 MATERIAL PROPERTIES .................................................................................................... 20 4.4 BEARING SHAPE .......................................................................................................... 20 4.5 BEARING DIMENSIONS.................................................................................................. 21 4.6 BEARING PROPERTIES..................................................................................................... 22 4.7 LIMITING STRAIN CALCULATIONS ...................................................................................... 23 4.7.1 AASHTO CRITERIA ............................................................................................... 23 4.7.1.1 AASHTO Equation 25 ............................................................................................................. 23 4.7.1.2 AASHTO Equation 26 ............................................................................................................. 24 4.7.1.3 AASHTO Equation 27 ............................................................................................................. 24 4.8 VERTICAL LOAD STABILITY ................................................................................................ 25 4.8.1 AASHTO REQUIREMENTS ....................................................................................... 25 4.9 RESTORING FORCE....................................................................................................... 26 4.10 EFFECTIVE STIFFNESS AND DAMPING .............................................................................. 27 Code: *************************************** Code: *************************************** Code: *************************************** RE: Ghazvin - Rashat - Anzaliy Railway Bridge DESIGN OF LEAD RUBBER . - gulilero - 02-25-2014 New Link: Code: *************************************** |