Performance of a Tied-Arch Reinforced Concrete Railway Bridge: Rating, Safety Assessment, and Bond Length Evaluation

被引：10

作者：

Uzgider, Erdogan ^{[1
]}

Aydogan, Metin ^{[1
]}

Caglayan, Ozden ^{[1
]}

Ozakgul, Kadir ^{[1
]}

Tezer, Ovunc ^{[1
]}

机构：

[1] Istanbul Tech Univ, TR-34469 Istanbul, Turkey

来源：

JOURNAL OF PERFORMANCE OF CONSTRUCTED FACILITIES | 2009年 / 23卷 / 05期

关键词：

Bridges; arch; concrete; railroad; Finite element method; Rating; Reinforced concrete; Structural safety; Turkey;

D O I：

10.1061/(ASCE)CF.1943-5509.0000016

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study presents investigations regarding visual inspection, dynamic testing, and finite-element modeling of an approximately 80-year old reinforced concrete tied-arch railway bridge that is still in service in Turkey. Investigations were conducted as part of a systematic periodic inspection along Ankara-Zonguldak railway line. The bridge is subject to heavy freight trains with increasing axle loads. Field tests such as material tests and dynamic tests were used to calibrate the finite-element model of the bridge. Detailed information regarding testing and model updating procedure is given. Based on test results, computer model was refined. The calibrated model of the bridge structure was then used for structural assessment and evaluation. Despite sufficient overall safety, local details were found to be problematic. Due to insufficient bond length in hanger-to-arch connection, a strengthening scheme using steel channel sections was proposed.

引用

页码：366 / 371

页数：6

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