Flexural Performance Analysis of UHPC Wet Joint of Prefabricated Bridge Deck

Shah, Yasir Ibrahim; Hu, Zhijian; Yin, Bing; Li, Xiao

doi:10.1007/s13369-021-05735-z

Cited by 28 publications

(7 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The effectiveness of the UHPC repaired overlay improving the fatigue life of orthotropic steel bridge panels was demonstrated by the equivalent standard axle cycles according to the Miner's linear accumulative damage rule [36]. The wet joints of prefabricated bridge panels with UHPC applied to found that the application of UHPC could greatly enhance its cracking resistance [37]. It can be found from the above research that UHPC has great application potential in highway bridges repair.…”

Section: Introductionmentioning

confidence: 93%

Experimental Research on Properties of UHPC Based on Composite Cementitious Materials System

Kong

Xiong

et al. 2022

Coatings

View full text Add to dashboard Cite

As concrete damage occurs frequently in the transition zone of bridge expansion joints, this paper discussed ultra-high-performance concrete (UHPC) based on composite cementitious materials system for the repair of the bridge expansion joint transition zone. The performance of UHPC based on composite cementitious materials system was studied by combining the macroscopic properties and microstructure of the material with the hydration mechanism of the cementitious material. The influence of sulphate aluminum cement (SAC) on composite cementitious materials system was studied. The experimental results showed that the appropriate amount of SAC can effectively reduce the setting time in the composite cementitious materials system. While SAC caused the strength to decrease, it has little effect on the mechanical properties of the composite cementitious materials system. When the ratio of SAC is 0.1 in the composite cementitious materials system, the setting time is shortened with maintaining the dense micro-structure observed by the SEM images. It can achieve fast hardening and have good early mechanical performance while retaining excellent long-term properties. Therefore, the addition of SAC can effectively make it possible to apply the excellent performance of UHPC for the repair of highway and bridge.

show abstract

Section: Introductionmentioning

confidence: 93%

Experimental Research on Properties of UHPC Based on Composite Cementitious Materials System

Kong

Xiong

et al. 2022

Coatings

View full text Add to dashboard Cite

show abstract

“…The UHPC and high-strength mortar were independently developed by "Huaxin new building materials Co., Ltd." UHPC was composed of premixed powder, admixture, steel fiber, and water, aggregates gradation of UHPC is provided in the author's previous work (Shah et al, 2021). According to relevant provisions (CECS13-2009;GB/T 31387-2015GB/T 31387- , 2015.…”

Section: Parameters Of the Test Specimenmentioning

confidence: 99%

“…The connection of structure for prefabricated components is an essential part of the design and construction. The joint connection forms of prefabricated structures mainly include wet connection and dry connection (Shah et al, 2021). The form of a wet connection is to weld, lap, or mechanically connect the reserved connecting steel bar at the connection part.…”

Section: Introductionmentioning

confidence: 99%

Interface bond strength performance of overlap joints within the corrugated pipes used in prefabricated bridges

Shah

Yao

2022

Advances in Structural Engineering

Self Cite

View full text Add to dashboard Cite

This paper presents an experimental study of a novel composite structure used in prefabricated bridges. Corrugated pipes were used to improve the interface bond performance of the structure because of their excellent stiffening effect on the grouting material. Interface bond performance of overlap joints within corrugated pipes was explored by the load-displacement curve and load-strain curves. Ultra-High Performance Concrete (UHPC) and high-strength mortar were used as grouting materials. The diameter of steel bars, UHPC, high-strength mortar, strength grades of surrounded concrete, anchorage length, the diameter of the corrugated pipe, and lap length was taken as influential factors. Twenty specimens were designed for the pull-out test by using a larger cover thickness. The failure modes and the influence of different influential factors on the interface bond strength of each specimen were analyzed. The results show that the bond performance between UHPC and reinforcement was better than that of high-strength mortar and normal concrete, which can effectively improve the bond strength and reduce the basic anchorage length of reinforcement besides the design size of prefabricated members. In addition, the differences in anchorage length and lap length between the corrugated pipe grouting reinforcement were compared to the different specifications and prefabricated concrete members. Combined with the test phenomenon and analysis results, it is suggested that the anchorage length and lap length of connecting reinforcement should be reconsidered. Furthermore, the grouting effect under different diameters of corrugated pipe and reinforcement were compared. It is recommended that the corrugated pipe diameter should be four times that of the overlapping grouting reinforcement.

show abstract

“…In recent years, several research studies have been conducted on the structural form and mechanical properties of bridge deck joints [9][10][11]. Wet joints are the main structural form to realize the reliable connection between precast bridge decks.…”

Section: Introductionmentioning

confidence: 99%

Experiment on Flexural Fatigue Performance of Precast Bridge Deck Joints with Loop Connections

Hu,

Zhu,

Shi

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

With the background of bridge industrialized construction, as a convenient construction form of a joint, a joint with loop connections has been applied in the connection of the precast bridge deck. As a relatively new type of connection structure, the fatigue performance and degradation law of a loop connection joint are still not clear. In this paper, different flexural fatigue specimens are designed based on the application situation of the loop connection joint. After 0 to 2 million fatigue-loading cycles, the fatigue-loading process is suspended and the static flexural performance of the specimen is tested. The load-deflection curves of specimens under static loading remain roughly linear, and the slope changes little. After 200 × 104 fatigue-loading cycles, the failure mode of each specimen is still presented as typical pure flexural failure. In addition, the strain of steel and concrete changes little, as well, and the stiffness degradation of each specimen is not obvious. It is indicated from this experiment that the fatigue-loading cycles has little effect on the mechanical properties of the concrete and loop bars, and the joint with loop connections has good fatigue performance.

show abstract

Flexural Performance Analysis of UHPC Wet Joint of Prefabricated Bridge Deck

Cited by 28 publications

References 21 publications

Experimental Research on Properties of UHPC Based on Composite Cementitious Materials System

Experimental Research on Properties of UHPC Based on Composite Cementitious Materials System

Interface bond strength performance of overlap joints within the corrugated pipes used in prefabricated bridges

Experiment on Flexural Fatigue Performance of Precast Bridge Deck Joints with Loop Connections

Contact Info

Product

Resources

About