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Numerical investigation on the strengthening work of transmission tower

Numerical investigation on the strengthening work of transmission tower / Aqilah Jamberi
Kejadian angin ribut di Malaysia adalah suatu perkara yang tidak dijangka terutama sekali dengan keadaan Bumi yang semakin tua. Keutuhan bangunan dalam merekabentuk struktur di bawah angin ribut adalah penting bagi memastikan tiada kesan negatif yang boleh memberi impak yang besar terutamanya terhadap masyarakat. Oleh itu, menaik taraf pencawang elektrik adalah penting untuk mengatasi bencana ini. Secara umumnya, kaedah menguatkan menara ini adalah dengan menambah pendakap mendatar atau dikenali sebagai diafragma atau member sekunder. Dalam kajian ini, member yang kritikal dalam setiap panel telah dikenal pasti dan jenis diafragma yang paling berkesan dikesan melalui pelbagai analisis. Empat jenis diafragma diperkenalkan dalam kajian ini. Keputusan dalam kajian ini menunjukkan bahawa, jenis diafragma A adalah yang paling berkesan kerana daya yang rendah daripada kapasitinya dengan beban berat yang sedikit berbanding diafragma yang lain. Oleh itu, kaedah yang paling ekonomi telah dihasilkan dalam kajian ini dengan pengurangan kepada keupayaannya member tersebut. _______________________________________________________________________________________________________ Windstorm occurrence in Malaysia is unpredictable as the world becomes old. The susceptibility in designing structures under wind storm is important to ensure no damages occurs which leads many negative impacts mostly towards the society. Therefore, an upgrading the transmission tower is important nowadays to overcome this wind disaster. Basically, the method on retrofitting of existing transmission tower is by adding the horizontal braces or as known as diaphragm or by secondary member. In this study, the critical member in each panelise been identify and the most effective type of diaphragm is being introduce through multiple analysis. Four types of diaphragm are introduced in this study. The results shown that, diaphragm type A is the most efficient as it can carry the same load with the minimize steel weightage. Lattice structure need to be upgrading by adding the diaphragm to eliminate the failure members. Diaphragm type A gave the lowest additional steel weightage with zero number of failed member. Hence, the most economical method was produced with a reduction on its used capacity.
Contributor(s):
Aqilah Jamberi - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875006846
Barcode : 00003106723
Language:
English
Subject Keywords:
Windstorm; transmission tower; wind disaster
First presented to the public:
6/1/2017
Original Publication Date:
3/23/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Civil Engineering
Citation:
Extents:
Number of Pages - 71
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-03-23 15:58:28.172
Date Last Updated
2020-05-28 18:37:21.841
Submitter:
Mohd Jasnizam Mohd Salleh

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