EVALUATION OF CONSTRUCTION FORMWORK PRACTICES AND SAFETY ON PROJECTS IN NIGERIA

• <p>&nbsp;      <b>T</b><b>ABLE OF CONTENTS&nbsp;</b></p><p>ACKNOWLEDGMENTS ....................................................................................... ii&nbsp;</p><p>LIST OF TABLES....................................................................................................v&nbsp;</p><p>LIST OF FIGURES ................................................................................................ vi</p><p>&nbsp;ABSTRACT......................................................................................................... viii&nbsp;</p><p>

Chapter ONE

INTRODUCTION

• ABOUT THIS THESIS ...................................................................1&nbsp;</p><p>
• 1.1Introduction.................................................................................................... 1&nbsp;</p><p>
• 1.2Research Objectives and Analysis Approach ................................................ 3&nbsp;</p><p>
• 1.3Reader’s Guide................................................................................................ 6</p><p><b>

Chapter TWO

LITERATURE REVIEW

• </b>&nbsp;</p><p>ELEVATED FORMWORK FAILURE DURING CONSTRUCTION..........................7</p><p>
• 2.1Definition of Elevated Formwork............................................................... 7&nbsp;</p><p>
• 2.2Criteria of Formwork ....................................................................................... 8&nbsp;</p><p>2.
• 2.1Design Regulations...................................................................................... 8&nbsp;</p><p>2.
• 2.2Construction and Safety Regulations......................................................... 10&nbsp;</p><p>2.
• 2.3Sequences of Concrete Placement ............................................................ 11&nbsp;</p><p>
• 2.3Case Study: Formwork Failures during Concrete Construction..................... 13&nbsp;</p><p>2.
• 3.1Formwork Failures in South Korea............................................................ 13&nbsp;</p><p>2.
• 3.2Main Causes of Formwork Failures............................................................ 14</p><p><b>

Chapter THREE

RESEARCH METHODOLOGY

• ...............................................................................................17</b>&nbsp;</p><p>3 INVESTIGATION ON ELEVATED FORMWORK DURING CONSTRUCTION...17</p><p>&nbsp;
• 3.1Analysis of Low-clearance Elevated Formwork............................................ 17&nbsp;</p><p>3.
• 1.1Overview of Field Survey .......................................................................... 17&nbsp;</p><p>3.
• 1.2Field Investigation....................................................................................... 20&nbsp;</p><p>3.1.
• 2.1Present status for construction ...............................................................20&nbsp;</p><p>3.1.
• 2.2Sequence of placing fresh concrete........................................................22&nbsp;</p><p>3.
• 1.3Summary .................................................................................................... 23&nbsp;</p><p>
• 3.2Analysis of High-clearance Elevated Formwork............................................ 24&nbsp;</p><p>3.
• 2.1Overview of an Interview.............................................................................. 24</p><p>&nbsp;3.
• 2.2Questionnaire Survey................................................................................. 25&nbsp;</p><p>3.2.
• 2.1Present status for construction ................................................................25&nbsp;</p><p>3.2.
• 2.2Sequence of placing fresh concrete.........................................................29&nbsp;</p><p>3.
• 2.3Overview of Field Survey ........................................................................... 31&nbsp;</p><p>3.
• 2.4Field Investigation....................................................................................... 33&nbsp;</p><p>3.2.
• 4.1Present status for construction ................................................................33&nbsp;</p><p>3.2.
• 4.2Sequence of placing fresh concrete.........................................................37&nbsp;</p><p>3.
• 2.5Summary .................................................................................................... 38&nbsp;</p><p><b>

Chapter FOUR

DATA PRESENTATION AND ANALYSIS

• ..................................................................................................39</b><br></p><p>
• 4.0IMPORTANCE OF THE SEQUENCE OF CONCRETE PLACEMENT..........39&nbsp;</p><p>
• 4.1Problem Analysis......................................................................................... 39&nbsp;</p><p>
• 4.2Simplified Structural Analysis......................................................................... 41&nbsp;</p><p>
• 4.3Proposed Improvements for Construction .................................................... 45&nbsp;</p><p>
• 4.4Summary........................................................................................................ 45&nbsp;</p><p><b>

Chapter FIVE

SUMMARY, CONCLUSION AND RECOMMENDATIONS

• .....................................................................................................48</b><br></p><p>
• 5.0CONCLUSIONS AND RECOMMENDATIONS ..........................................48&nbsp;</p><p>
• 5.1Conclusions................................................................................................... 48</p><p>&nbsp;
• 5.2Recommendations........................................................................................ 49&nbsp;</p><p>APPENDIX A MEASURED DATA FOR THE SPACING OF SHORES ..............................................................................................................................50&nbsp;</p><p>B MEASURED DATA FOR THE INCLINATION OF SHORES..............................72&nbsp;</p><p>LIST OF REFERENCES......................................................................................74&nbsp;</p><p>BIOGRAPHICAL SKETCH ..................................................................................76&nbsp;</p>