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contributor authorHui-Sheng Chiu
contributor authorJenn-Chuan Chern
contributor authorKuo-Chun Chang
date accessioned2017-05-08T22:37:55Z
date available2017-05-08T22:37:55Z
date copyrightJune 1996
date issued1996
identifier other%28asce%290733-9399%281996%29122%3A6%28489%29.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/84418
description abstractCreep and shrinkage of concrete may lead to excess long-term deflection in concrete members, especially in prestressed concrete structures. The long-term vertical deflection of a segmentally constructed prestressed concrete bridge due to prestress loss is a typical example. This excessive deflection not only reduces service life of bridge structures but also leads to poor riding quality for the passengers. This paper proposes a method that employs control tendons to adjust the prestress of a bridge system in a timely basis. The result of this study shows that deflection control in a prestressed concrete bridge can be achieved through the application of small tendon forces at proper timings. The proposed deflection control method is also verified by experimental studies. This paper describes the concept of the proposed method and control algorithm. Experimental verifications and numerical simulations are shown in a companion paper.
publisherAmerican Society of Civil Engineers
titleLong-Term Deflection Control in Cantilever Prestressed Concrete Bridges. I: Control Method
typeJournal Paper
journal volume122
journal issue6
journal titleJournal of Engineering Mechanics
identifier doi10.1061/(ASCE)0733-9399(1996)122:6(489)
treeJournal of Engineering Mechanics:;1996:;Volume ( 122 ):;issue: 006
contenttypeFulltext


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