Influence of vertical earthquake motion and pre-earthquake stress on joint response of precast concrete segmental bridges

PCI Journal ◽  
2009 ◽  
Vol 54 (3) ◽  
pp. 99-128 ◽  
Author(s):  
Marc J. Veletzos ◽  
José I. Restrepo
Keyword(s):  
Precast Concrete ◽  
Earthquake Motion ◽  
Segmental Bridges

An Experimental Study on the Joints in Ultra High Performance Precast Concrete Segmental Bridges

2011 ◽  
Vol 23 (2) ◽  
pp. 235-244 ◽  
Author(s):  
Chang-Hong Lee ◽  
Won-Jong Chin ◽  
Eun-Suk Choi ◽  
Young-Jin Kim
Keyword(s):  
Experimental Study ◽  
High Performance ◽  
Precast Concrete ◽  
Segmental Bridges

Damage Detection of Epoxied Joint Model in Precast Concrete Segmental Bridges Using PZT Technology

2020 ◽  
Vol 33 (3) ◽  
pp. 04020012
Author(s):  
Jingnan Ding ◽  
Jingfu Kang ◽  
Jinsong Zhu ◽  
Xusheng Chen
Keyword(s):  
Damage Detection ◽  
Precast Concrete ◽  
Joint Model ◽  
Segmental Bridges

scholarly journals Numeric Analysis on Shear Behavior of High-Strength Concrete Single-Keyed Dry Joints with Fixing Imperfections in Precast Concrete Segmental Bridges

Materials ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 2914 ◽  
Author(s):  
Haibo Jiang ◽  
Mingzhu Chen ◽  
Zhijun Sha ◽  
Jie Xiao ◽  
Jiahui Feng
Keyword(s):  
Shear Strength ◽  
High Strength Concrete ◽  
Precast Concrete ◽  
Concrete Strength ◽  
High Strength ◽  
Lower Surface ◽  
Shear Capacity ◽  
Experimental Results ◽  
Strength Concrete ◽  
Segmental Bridges

Fixing imperfections in keyed dry joints between the concrete segments compromise the performance of precast concrete segmental bridges (PCSBs), which needs to consider carefully. In this study, a finite-element model on high-strength concrete single-keyed dry joints in PCSBs was established and validated by experimental results. Parametric studies on fixing imperfections in key, concrete strengths, and confining pressures were carried out based on that model. The numeric results included crack patterns, load–displacements and shear strength. Fixing imperfections—especially at lower surface of keys—reduced shear strength of single-keyed dry joints by the different shear transfer mechanism. Higher confining pressure and concrete strength improved the shear strength, but they mitigated and aggravated the effect of fixing imperfections at lower surface of key on shear strength, respectively. Compared with simulating results, AASHTO standard overestimated the shear capacity of single-keyed dry joints with fixing imperfections at lower surface of key by up to 0.602–22.0%, but greatly underestimated that of the rest. A modified formula with a strength reduction factor was proposed. For six experimental three-keyed dry-joint specimens and 30 numeric single-keyed dry-joint specimens with or without fixing imperfections, the average ratio of code predictions to experimental results was 90.4% and 81.6%, respectively.

Shear Behavior of Epoxy Resin Joints in Precast Concrete Segmental Bridges

2019 ◽  
Vol 24 (4) ◽  
pp. 04019009 ◽  
Author(s):  
Aimin Yuan ◽  
Chen Yang ◽  
Jiwei Wang ◽  
Leike Chen ◽  
Rongwei Lu
Keyword(s):  
Epoxy Resin ◽  
Precast Concrete ◽  
Shear Behavior ◽  
Segmental Bridges

Shear Behavior of Joints in Precast Concrete Segmental Bridges

1990 ◽  
Vol 116 (12) ◽  
pp. 3380-3401 ◽  
Author(s):  
Oral Buyukozturk ◽  
Mourad M. Bakhoum ◽  
S. Michael Beattie
Keyword(s):  
Precast Concrete ◽  
Shear Behavior ◽  
Segmental Bridges

Analysis of in-situ stitches in precast concrete segmental bridges

2012 ◽  
Vol 5 (1) ◽  
pp. 1-15 ◽  
Author(s):  
Y. Zeng ◽  
F.T.K. Au ◽  
C.C.Y. Leung
Keyword(s):  
Precast Concrete ◽  
Segmental Bridges

Effect of specimen thickness and coarse aggregate size on shear strength of single‐keyed dry joints in precast concrete segmental bridges

2019 ◽  
Vol 20 (3) ◽  
pp. 955-970 ◽  
Author(s):  
Haibo Jiang ◽  
Jiahui Feng ◽  
Airong Liu ◽  
Weibin Liang ◽  
Yuhua Tan ◽  
...  
Keyword(s):  
Shear Strength ◽  
Coarse Aggregate ◽  
Precast Concrete ◽  
Aggregate Size ◽  
Specimen Thickness ◽  
Segmental Bridges
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