Optimum Design of Transmission Towers Subjected to Wind and Earthquake Loading

Alaa C. Galeb; Ahmed Mohammed Khayoon

doi:10.12816/0000545

Article Details

Optimum Design of Transmission Towers Subjected to Wind and Earthquake Loading

Authors:

Alaa C. Galeb | Ahmed Mohammed Khayoon

Publisher:

Jordan University of Science and Technology : Deanship of Research

Main Topics:

Engineering and applied operations

Journal:

Jordan Journal of Civil Engineering 2013 Vol.7 Issue 1, pp.70-92

Document Type:

Article

Publication Date:

1/2013

Document Language:

English

Document ID (Org No.):

32541

Frequency:

Quarterly

eISSN:

2225157X

pISSN:

19930461

DOI:

10.12816/0000545

Descriptors:

Keywords:

Abstract:

 Transmission towers (1S2 and 2S2-132 kV types) subjected to multiple combinations of wind, seismic anddead loads are optimally designed for least weight. The member areas and joint coordinates are treated asdesign variables. Members are designed to satisfy stress limits. Joint coordinate variables are linked to reducethe number of independent design variables. The optimization problem is divided into two design spaces.
While changing the coordinate variables, using Hooke and Jeeves method, the member areas are treated asdependent design variables. The sections used are: angle and pipe sections which represent the commonlyused sections in lattice transmission towers, in addition to tube sections. The structural analysis and the fullystressed design are performed using STAAD pro v.2006. It is found that the 1S2 tower with angle section andX-bracing, under anti-cascade loading condition, has a reduction in weight of about 14% of the weight beforeoptimization, while the reduction for 2S2 was 24% for the same conditions. For seismic loading conditions,the reductions were about 24% for 1S2 tower and 22% for 2S2 tower with angle section and X-bracing. Theresults showed that the 1S2 tower with pipe section has a weight of 85% of that with angle section, under thesame loading condition, while for 2S2 tower, the weight with pipe section was about 88% of that with anglesection.

Article Details

Optimum Design of Transmission Towers Subjected to Wind and Earthquake Loading

Authors:

Alaa C. Galeb | Ahmed Mohammed Khayoon

Publisher:

Jordan University of Science and Technology : Deanship of Research

Main Topics:

Engineering and applied operations

Journal:

Jordan Journal of Civil Engineering 2013 Vol.7 Issue 1, pp.70-92

Document Type:

Article

Publication Date:

1/2013

Document Language:

English

Document ID (Org No.):

32541

Frequency:

Quarterly

eISSN:

2225157X

pISSN:

19930461

DOI:

10.12816/0000545

Descriptors:

ELECTRIC POWER GENERATION

CHANNELS

MECHANICAL TRANSMISSION SYSTEMS

WIND POWERED SYSTEMS

EARTHQUAKES

DYNAMICS

ENGINEERING DESIGN

Transmission towers

Optimum design

Wind load

Earthquake

Issues

Article Details

Authors: Alaa C. Galeb | Ahmed Mohammed Khayoon

Publisher: Jordan University of Science and Technology : Deanship of Research

Main Topics: Engineering and applied operations

Journal: Jordan Journal of Civil Engineering 2013 Vol.7 Issue 1, pp.70-92

Document Type: Article

Publication Date: 1/2013

Document Language: English

Document ID (Org No.): 32541

Frequency: Quarterly

eISSN: 2225157X

pISSN: 19930461

DOI: 10.12816/0000545

Descriptors:

Issues

Authors:

Alaa C. Galeb | Ahmed Mohammed Khayoon

Publisher:

Jordan University of Science and Technology : Deanship of Research

Main Topics:

Engineering and applied operations

Journal:

Jordan Journal of Civil Engineering 2013 Vol.7 Issue 1, pp.70-92

Document Type:

Article

Publication Date:

1/2013

Document Language:

English

Document ID (Org No.):

32541

Frequency:

Quarterly

eISSN:

2225157X

pISSN:

19930461

DOI:

10.12816/0000545