Application of Ultra-High Performance Concrete in bridge engineering

Zhou, Mi; Wei, Lu; Song, Jianwei; Lee, George C.

doi:10.1016/j.conbuildmat.2018.08.036

Cited by 244 publications

(67 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Ultra-high performance concrete (UHPC), as a new cement-based material, is different from traditional high strength concrete (HSC) and steel fiber reinforced concrete (SFRC), which has excellent mechanical and durability properties [1][2][3][4]. Normally, the compressive strength of UHPC is higher than 150 MPa for structural concrete [5][6][7] and shows outstanding performance [8][9][10]. UHPC is produced via optimizing the granular mixtures at very low water-to-binder ratio (w/b < 0.2), using high amount of binding materials and a certain amount of steel fibers [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Effects of Steel Slag Powder and Expansive Agent on the Properties of Ultra-High Performance Concrete (UHPC): Based on a Case Study

Cheng

et al. 2020

Materials

View full text Add to dashboard Cite

In view of the performance requirements of mass ultra-high performance concrete (UHPC) for the Pang Gong bridge steel cable tower in China, the UHPC incorporating of steel slag powder and hybrid expansive agents is optimized and prepared. The effects of steel slag powder and hybrid expansive agents on the hydration characteristics and persistent shrinkage of UHPC are investigated. The results indicate that 15 wt.% steel slag powder and 5 wt.% hybrid expansive agents can effectively reduce the drying shrinkage deformation of UHPC with a slight decrease of strength. Heat flow calorimetry results show that the incorporation of steel slag powder and expansive agents decreases the hydration heat at three days. Moreover, the obtained adiabatic temperature rise of UHPC is 59.5 °C and the total shrinkage value at 180 days is 286 με. The hydration heat release changes of large volume UHPC in the steel-concrete section of cable tower is agreed with the result of adiabatic temperature rise in the laboratory.

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of Steel Slag Powder and Expansive Agent on the Properties of Ultra-High Performance Concrete (UHPC): Based on a Case Study

Cheng

et al. 2020

Materials

View full text Add to dashboard Cite

show abstract

“…The increasing amount of concrete production leads to a rising demand for innovative solutions for concrete structures and their implementation in real construction projects [4]. In the present trend of constructing taller and longer structures, the application of lightweight aggregate concrete is becoming an increasingly important advanced solution in the modern construction industry.…”

Section: Introductionmentioning

confidence: 99%

Deformation Analysis of Reinforced Beams Made of Lightweight Aggregate Concrete

Bačinskas

Rumsys²,

Соколов

et al. 2019

Materials

View full text Add to dashboard Cite

In the present trend of constructing taller and longer structures, the application of lightweight aggregate concrete is becoming an increasingly important advanced solution in the modern construction industry. In engineering practice, the analysis of lightweight concrete elements is performed using the same algorithms that are applied for normal concrete elements. As an alternative to traditional engineering methods, nonlinear numerical algorithms based on constitutive material models may be used. The paper presents a comparative analysis of curvature calculations for flexural lightweight concrete elements, incorporating analytical code methods EN 1992-1 and ACI 318-19, as well as a numerical analysis using the constitutive model of cracked tensile lightweight concrete recently proposed by the authors. To evaluate the adequacy of the theoretical predictions, experimental data of 51 lightweight concrete beams of five different programs reported in the literature were collected. A comparison of theoretical and experimental results showed that the most accurate predictions are obtained using numerical analysis and the constitutive model proposed by the authors. In the future, the latter algorithm can be used as a reliable tool for improving the design standard methods or numerical modeling of lightweight concrete elements subjected to short-term loading.

show abstract

“…After years of research and practice, ultrahigh-performance fiber-reinforced concrete (UHPFRC) has made its way into the construction field. UHPFRC is a cement-based and hybrid fiber composite material with ultrahigh mechanical performance that can reduce structure sectional size and make structures more lightweight, so it is widely applied in bridge engineering [1][2][3][4]. e main idea is using UHPFRC to build bridges where structures are mainly subjected to high mechanical loading [5], high seismic zones [6], and severe environment [7].…”

Section: Introductionmentioning

confidence: 99%

Structural Behavior of Ultrahigh-Performance Fiber-Reinforced Concrete Thin-Walled Arch Subjected to Asymmetric Load

Yang

Zhou

Wang

et al. 2019

Advances in Civil Engineering

View full text Add to dashboard Cite

Ultrahigh-performance fiber-reinforced concrete (UHPFRC) is an innovative material in the field of bridge engineering. With superior mechanical characteristics, this new material reduced the structural self-weight and extended the span of modern bridges. A series of tests should be conducted to establish reliable design rules for UHPFRC structures. This paper aimed at determining the compressive behavior of UHPFRC for thin-walled arch section design and a comparison was made with a normal concrete (NC) arch. Eighteen axial compression columns for arch section design and arches under asymmetric load were tested in this paper. Behaviors of the arches were assessed using various mechanical properties, including the failure pattern, load-deflection relationship, strain analysis, and analytical investigation. A finite element model (FEM) considering the material and geometric nonlinearity was developed to predict the behavior of the UHPFRC arch. Results indicated that a wall thickness of 50 mm with stirrups effectively restrained instability failure of the thin-walled compression columns. The cracking load and the ultimate load of the UHPFRC arch increased by 60% and 34%, respectively, when comparing with the NC arch. It showed the UHPFRC arch had higher load capacity and outstanding durability. The failure mode of the UHPFRC arch was similar to that of the NC arch, which belonging to the destruction of multihinges. However, the appearance of the plastic hinges was delayed, and a better elastic-plastic performance was obtained when using UHPFRC. The analytical formula for calculating the ultimate load of the UHPFRC arch was derived with high precision by using the limit equilibrium method. The results of the FEM showed good agreement with test results, and they were able to predict the behavior of the UHPFRC arches.

show abstract

Application of Ultra-High Performance Concrete in bridge engineering

Cited by 244 publications

References 6 publications

Effects of Steel Slag Powder and Expansive Agent on the Properties of Ultra-High Performance Concrete (UHPC): Based on a Case Study

Effects of Steel Slag Powder and Expansive Agent on the Properties of Ultra-High Performance Concrete (UHPC): Based on a Case Study

Deformation Analysis of Reinforced Beams Made of Lightweight Aggregate Concrete

Structural Behavior of Ultrahigh-Performance Fiber-Reinforced Concrete Thin-Walled Arch Subjected to Asymmetric Load

Contact Info

Product

Resources

About