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Predicting Long-Term Deflection in Large-Span Beam Bridges Based on Creep Self-Identification
Publisher: American Society of Civil Engineers
Abstract: A theory for directly identifying shrinkage and creep in a structure, along with an embedded self-identification system, is proposed. The theory and system aim to obtain accurately the time-dependent regularity of shrinkage ...
Review of Study of Long-term Deflection for Long Span Prestressed Concrete Box-girder Bridge
Publisher: American Society of Civil Engineers
Abstract: The long-term deflection of Long Span Prestressed Concrete Box-girder Bridge (LSPCBB) is getting more and more serious in terms of structure safety. And there are still many ambiguous reasons as to the cause of the deflection ...
Exploratory Experimental Study on Fatigue Prestress Loss of Prestressed Concrete Beams
Publisher: American Society of Civil Engineers
Abstract: To study the fatigue prestress loss of prestressed concrete beams, four bonded post-tensioned bonded concrete simple supported beams were designed and constructed for constant-amplitude fatigue load displacement tests. ...
Long-Term Deflection Prediction and Correction of Creep and Shrinkage Model of High-Strength Concrete Based on Short-Term Measured Data for Bridge
Publisher: American Society of Civil Engineers
Abstract: To investigate the laws of creep and shrinkage in high-strength, concrete for long-span prestressed continuous box-girder bridge and predict long-term deflection, strain sensors were embedded in the midspan of a box-girder ...