Design of a Lightning Protection System for Suspension Bridges

Cüneyt Koç; Özgür Turay Kaymakçı

Makale detayları

Design of a Lightning Protection System for Suspension Bridges

Yazarlar:

Cüneyt Koç | Özgür Turay Kaymakçı

Yayıncı:

Gazi University

Ana Başlıklar:

Mühendislik

Dergi:

Politeknik Dergisi Vol.27 Issue 4, pp.1409-1416

Belge Tipi:

Makale

Yayın Tarihi:

9/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001327687

pISSN:

2147-9429

Anahtar kelimeler:

Özet:

 Suspension bridges are located on the connection point of big cities. Therefore lightning protection is crucial for that kind of critical structures. Lightning strike not only can cause casualties, but also can destroy the bridge and other electro-mechanical systems. Due to this, lightning protection system design is highly critical. In this article, worlds 7th biggest suspension bridge Osmangazi Bridge located in key control projection of Gebze-Izmir Highway between Izmit and Yalova cities are selected for case study calculations. The Lightning Protection System LPS has been examined as a whole system. Unlike similar studies, it has been shown that when the suspension bridge structure is used as the down conductor, the tower body with a smaller impedance than the external down conductor in terms of the same peak value and so lightning current will always prefer tower body as down conductor. In this study, unlike the examples in the literature, the lightning protection system in suspension bridges was examined as a whole system and the most reliable system for suspension bridges was proposed with the necessary calculations.

 Suspension bridges are located on the connection point of big cities. Therefore lightning protection is crucial for that kind of critical structures. Lightning strike not only can cause casualties, but also can destroy the bridge and other electro-mechanical systems. Due to this, lightning protection system design is highly critical. In this article, worlds 7th biggest suspension bridge Osmangazi Bridge located in key control projection of Gebze-Izmir Highway between Izmit and Yalova cities are selected for case study calculations. The Lightning Protection System LPS has been examined as a whole system. Unlike similar studies, it has been shown that when the suspension bridge structure is used as the down conductor, the tower body with a smaller impedance than the external down conductor in terms of the same peak value and so lightning current will always prefer tower body as down conductor. In this study, unlike the examples in the literature, the lightning protection system in suspension bridges was examined as a whole system and the most reliable system for suspension bridges was proposed with the necessary calculations.

 Suspension bridges are located on the connection point of big cities. Therefore lightning protection is crucial for that kind of critical structures. Lightning strike not only can cause casualties, but also can destroy the bridge and other electro-mechanical systems. Due to this, lightning protection system design is highly critical. In this article, worlds 7th biggest suspension bridge Osmangazi Bridge located in key control projection of Gebze-Izmir Highway between Izmit and Yalova cities are selected for case study calculations. The Lightning Protection System LPS has been examined as a whole system. Unlike similar studies, it has been shown that when the suspension bridge structure is used as the down conductor, the tower body with a smaller impedance than the external down conductor in terms of the same peak value and so lightning current will always prefer tower body as down conductor. In this study, unlike the examples in the literature, the lightning protection system in suspension bridges was examined as a whole system and the most reliable system for suspension bridges was proposed with the necessary calculations.

 Asma köprüler ülkelerde büyük şehirlerin kilit bağlantı noktalarında yer almaktadır. Bundan dolayı yıldırımdan korunma sistemi böylesine önemli kritik yapılarda hayati öneme sahip olmaktadır. Yıldırım çarpması yalnızca can kaybına neden olmakla kalmaz, aynı zamanda köprüyü ve köprü üzerindeki elektro-mekanik sistemleri de tahrip edebilir. Bu nedenle yıldırımdan korunma sistemi tasarımı çok önemlidir. Bu çalışmada vaka çalışması olarak İzmit ile Yalova illeri arasında bulunan Gebze-İzmir Otoyolunun kilit noktasında yer alan dünyanın en büyük 7. asma köprüsü olan Osmangazi Köprüsü için hesaplar yapılmıştır. Yıldırımdan Korunma Sistemi YKS bir bütün olarak incelenmiştir. Benzer çalışmalardan farklı olarak asma köprü yapısının aşağı iniş iletkeni olarak kullanıldığında aynı tepe değerli yıldırım akımı bakımından indirme iletkenine göre daha küçük empedansa sahip olan direk gövdesinin tercih edileceğini hatta bu tür asma köprülerde indirme iletkeni kullanılmayıp doğrudan köprü metal gövdesinin akım yolu olarak kullanılabileceğini gösterilmiştir. Bu çalışmada literatürdeki örneklerinden farkı olarak asma köprülerde yıldırımdan korunma sistemi bir bütün halinde incelenerek gerekli hesaplar ile asma köprüler için en güvenilir sistem önerilmiştir.

Makale detayları

Design of a Lightning Protection System for Suspension Bridges

Yazarlar:

Cüneyt Koç | Özgür Turay Kaymakçı

Yayıncı:

Gazi University

Ana Başlıklar:

Mühendislik

Dergi:

Politeknik Dergisi Vol.27 Issue 4, pp.1409-1416

Belge Tipi:

Makale

Yayın Tarihi:

9/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001327687

pISSN:

2147-9429

suspension bridge

lightning

characteristic impedance

resistivityGüneş enerjili hava kollektörü

konik yay

bulanık mantık

modelleme

çıkış sıcaklığı

termal verim

Sayı

Makale detayları

Yazarlar: Cüneyt Koç | Özgür Turay Kaymakçı

Yayıncı: Gazi University

Ana Başlıklar: Mühendislik

Dergi: Politeknik Dergisi Vol.27 Issue 4, pp.1409-1416

Belge Tipi: Makale

Yayın Tarihi: 9/2024

Belge Dili: Türkçe

Document ID (Org No.): 2001327687

pISSN: 2147-9429

Sayı

Yazarlar:

Cüneyt Koç | Özgür Turay Kaymakçı

Yayıncı:

Gazi University

Ana Başlıklar:

Mühendislik

Dergi:

Politeknik Dergisi Vol.27 Issue 4, pp.1409-1416

Belge Tipi:

Makale

Yayın Tarihi:

9/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001327687

pISSN:

2147-9429