EXPERIMENTAL STUDY ON BENDING BEHAVIOR OF PRESTRESSED CONCRETE BOX BEAM WITH PRETENSIONED BENT-UP TENDONS

摘要：

This paper presents the test results of a prestressed concrete box beam with pretensioned bent-up tendons under loading; the box beam which has a span length of 35m is one of the bridge beams of Huaihe River Bridge in Henan Province of China. The prestress losses, the stresses of tendons and concrete are measured; the bending behaviors such as the cracking resistance, the deflection and flexural capacity of the prestressed concrete box beam are discussed and analyzed. The results show that the bending behaviors of the prestressed concrete box beam with pretensioned bent-up tendons are better than that of conventional post-tentioned prestressed concrete bridge beam, and this may serve as a reference for the applications of this newly pre-stressed beam in bridge.

关键词： prestressed concrete pre-tensioned method bent-up tendons bending behavior

作者: Xin-Yu Wang Li-Xin Liu Hong-Fei An

作者单位: School of Civil Engineering, Zhengzhou University, Zhengzhou 450002, P.R. China

会议类型: 国际会议

会议名称: 2009年土木工程结构创新与可持续发展国际会议(The International Symposium on Innovation & Sustainability of Structures in Civil Engineering)

会议地点: 广州

会议语种:英文

页码: 436-441

在线出版日期: 2009-11-28（万方平台首次上网日期，不代表论文的发表时间）