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原文传递 Field Verification of Simplified Analysis Procedures for Segmental Concrete Bridges

题名：	Field Verification of Simplified Analysis Procedures for Segmental Concrete Bridges
其他题名：	Al-Omaishi,N.,Tadros,M.K.,and Seguirant,S.J.(2009)."Elasticity modulus,shrinkage and creep of high-strength concrete as adopted by AASHTO."PCI J.,54(3),44-63.
正文语种：	英文
作者：	Marc Maguire
关键词：	literature；designer；analysis；bridge；prediction；presence；dimension；present；different；inventor
摘要：	Load tests on segmental bridges are uncommon in the literature given their relatively short history and comparatively smaller presence in the national bridge inventory. This paper presents results from two segmental concrete bridge field tests and compares them with common simplified longitudinal and transverse analysis procedures. These single-cell structures, built with balanced cantilever construction, represent two significantly different segmental concrete bridges. Designers frequently use a beamline model for longitudinal analysis. When compared with the load test results, this simple method produces conservative predictions of longitudinal behavior within 20％, which is also reflected in the literature. Conversely, little information exists in the literature on transverse bending analysis. When analyzing the localized transverse bending from concentrated wheel loads, designers commonly use an equivalent frame model. Most frequently, designers use influence surfaces to estimate the scaled loads to apply to these two-dimensional frame models. This simplified approach is shown to be conservative overall but cannot always predict bending sense and frequently overpredicts demand in excess of 100％.
出版年：	2015
论文唯一标识：	P-26Y2015V141N01009
英文栏目名称：	Technical Papers
doi：	10.1061/(ASCE)ST.1943-541X.0001111
期刊名称：	Journal of Structural Engineering
拼音刊名(出版物代码)：	P-26
卷：	141
期：	01
页码：	78-88