Sensitivity Analysis of Soil Site Response Modelling in Seismic ... - ITC

Table of Contents
Page
Acknowledgement............................................................................................................................... ii
Abstract .............................................................................................................................................. iii
Table of Contents ...............................................................................................................iv
List of Figures .................................................................................................................... vi
List of Tables...................................................................................................................... ix
List of Abbreviations............................................................................................................x
1. Introduction ....................................................................................................................................1
1.1. Scope of the study ....................................................................................................................1
1.2. Problem Statement ...................................................................................................................4
1.3. Research Objectives .................................................................................................................5
1.4. Research Methodology.............................................................................................................5
1.4.1. Input data..........................................................................................................................6
1.4.2. Data collection................................................................................................................11
1.4.3. Data organization ...........................................................................................................13
1.4.4. Structure of the Thesis....................................................................................................14
2. Literature Review.........................................................................................................................16
2.1. Overview Of Methods For Seismic Hazard Assessment........................................................17
2.1.1. Seismic Hazard Assessment ...........................................................................................17
2.1.2. Seismic Microzoning......................................................................................................22
2.1.3. Ground Response Modelling; Soil Site Effects..............................................................24
Experimental Methods ...................................................................................................................24
Numerical Analysis ........................................................................................................................30
Advanced methods .........................................................................................................................32
Empirical and semi-empirical methods ..........................................................................................33
2.1.4. Sensitivity Analysis........................................................................................................34
2.2. Conclusıons ............................................................................................................................36
3. Shake2000 .....................................................................................................................................38
3.1. Introduction ............................................................................................................................38
3.2. Background ............................................................................................................................38
3.3. Program Structure...................................................................................................................41
4. Study Area ....................................................................................................................................49
4.1. Location..................................................................................................................................49
4.2. Geology ..................................................................................................................................50
4.3. Seismicity ...............................................................................................................................54
5. Seismic Response Analysis For Lalitpur, Nepal ........................................................................56
5.1. Ground Response Modelling Methodology ...........................................................................56
5.1.1 Methodology 1: Modelling based on available borehole data........................................57
5.1.2 Methodology 2: Generating acceleration maps..............................................................74
6. Sensitivity Analysis.......................................................................................................................85
6.1. Methodology ..........................................................................................................................85
6.2. Sensitivity to changes in Shear Wave Velocity......................................................................86
6.3. Sensitivity to Input Motions...................................................................................................90
IV
Sensitivity Analysis Of Soil Site Response Modelling In Seismic Microzonation For Lalitpur, Nepal