Natividad, Cresencio P. 4 0
Design of steel latticed telecommunication tower using National Structural Code of the Philippines (NSCP 2010) / 6 6 Cresencio P. Natividad. - - - xi, 119 pages 28 cm. - - - - - . - . - 0 . - . - 0 .
Thesis (M.A.) -- Pamantasan ng Lungsod ng Maynila, 2012.;A directed study presented to the faculty of Graduate School of Engineering in partial fulfillment of the requirements for the degree Master of Engineering (MEng) with specialization in Structural Engineering.
5
ABSTRACT: Construction of Steel Latticed Tower is growing rapidly worldwide through diversification to meet the increasing demand for telecommunication services. The antennas of mobile phones, internets, telephones, radios, televisions and the likes are mostly installed in a steel latticed or trussed tower. In the Philippines, there is a tremendous growth in mobile and telecommunication services. The country was even named as texting capital of the world. Recent typhoons in the Philippines damaged notably many latticed towers and pole-type structures which greatly affect the telecommunication industries in the Philippines especially during the time of disaster. RESEARCH METHODOLOGY Formulation of design procedure for Steel Latticed Telecommunication Tower using LRFD of NSCP 2010 standard was done through flowchart. ANSI/TIA-222-G was also used as reference for wind loads on antennas. Spreadsheet Programs were also developed for anchor bolt design and base plate design. SUMMARY OF FINDINGS This paper familiarizes Structural and Civil Engineers. Students and Practitioners on tower concept by giving them background and figures on tower members, antennas and appurtenances, likewise with the different codes, standards and criteria pertaining to tower analysis and design. Optimized design of members were done in the tower by using TSTower which is a general program for the load generation, analysis and design of latticed self-supporting structures using LRFD. The spreadsheet programs for the determination of capacity of bolt connections, design of anchor bolt and base plate run successfully. CONCLUSIONS The formulated design procedure using NSCP 2010 were shown through flowchart and chronological design procedure. These were done by specifying loadings design parameters and criteria process, loadings and design analysis. Optimizations of materials were done by running the program repeatedly. Spreadsheet programs for connections, anchor bolt and base plate were shown sequentially with the given formulas. Results were tabulated in a table and in a chart showing the optimized sizes and quantities. RECOMMENDATION Since Civil and Structural Engineers having knowledge and skills in tower design are in high demand in the market today, it is hereby recommended that further studies be done by engineering students and researchers on the latest available tower software and codes and standard updates. As a continuity of this study, they may also do foundation design for towers using available software in the market. It is also recommended to include or integrate the significance of tower concepts, analysis and design in the college and graduate school of engineering subjects and curriculum for them to competitive in this fast growing industry.
5
2 = =
2
2 --0------
6 --0-- 2 --------
0 2 --
--20------
--------20--
--------20--
----2
/ 2
/ 2
/
/
Design of steel latticed telecommunication tower using National Structural Code of the Philippines (NSCP 2010) / 6 6 Cresencio P. Natividad. - - - xi, 119 pages 28 cm. - - - - - . - . - 0 . - . - 0 .
Thesis (M.A.) -- Pamantasan ng Lungsod ng Maynila, 2012.;A directed study presented to the faculty of Graduate School of Engineering in partial fulfillment of the requirements for the degree Master of Engineering (MEng) with specialization in Structural Engineering.
5
ABSTRACT: Construction of Steel Latticed Tower is growing rapidly worldwide through diversification to meet the increasing demand for telecommunication services. The antennas of mobile phones, internets, telephones, radios, televisions and the likes are mostly installed in a steel latticed or trussed tower. In the Philippines, there is a tremendous growth in mobile and telecommunication services. The country was even named as texting capital of the world. Recent typhoons in the Philippines damaged notably many latticed towers and pole-type structures which greatly affect the telecommunication industries in the Philippines especially during the time of disaster. RESEARCH METHODOLOGY Formulation of design procedure for Steel Latticed Telecommunication Tower using LRFD of NSCP 2010 standard was done through flowchart. ANSI/TIA-222-G was also used as reference for wind loads on antennas. Spreadsheet Programs were also developed for anchor bolt design and base plate design. SUMMARY OF FINDINGS This paper familiarizes Structural and Civil Engineers. Students and Practitioners on tower concept by giving them background and figures on tower members, antennas and appurtenances, likewise with the different codes, standards and criteria pertaining to tower analysis and design. Optimized design of members were done in the tower by using TSTower which is a general program for the load generation, analysis and design of latticed self-supporting structures using LRFD. The spreadsheet programs for the determination of capacity of bolt connections, design of anchor bolt and base plate run successfully. CONCLUSIONS The formulated design procedure using NSCP 2010 were shown through flowchart and chronological design procedure. These were done by specifying loadings design parameters and criteria process, loadings and design analysis. Optimizations of materials were done by running the program repeatedly. Spreadsheet programs for connections, anchor bolt and base plate were shown sequentially with the given formulas. Results were tabulated in a table and in a chart showing the optimized sizes and quantities. RECOMMENDATION Since Civil and Structural Engineers having knowledge and skills in tower design are in high demand in the market today, it is hereby recommended that further studies be done by engineering students and researchers on the latest available tower software and codes and standard updates. As a continuity of this study, they may also do foundation design for towers using available software in the market. It is also recommended to include or integrate the significance of tower concepts, analysis and design in the college and graduate school of engineering subjects and curriculum for them to competitive in this fast growing industry.
5
2 = =
2
2 --0------
6 --0-- 2 --------
0 2 --
--20------
--------20--
--------20--
----2
/ 2
/ 2
/
/