Results 21 to 30 of about 2,540 (186)

Experimental and Numerical Study on UHPC–RC Decks within Hogging Moment Region

Applied Sciences, 2022
Steel–concrete composite continuous bridges can take full advantage of concrete and steel, but in regions with hogging moments, cracking of the concrete deck is a big issue affecting the durability of bridges.
Guanxu Long, Ruigen Zhou, Haiying Ma, Gongfeng Xin, Seyyedbehrad Emadi, Xuefei Shi   +5 more
doaj   +1 more source

Concrete in architecture: Redefining form, space, function, and insights from bibliometric analysis

Structural Concrete, EarlyView.
Abstract Concrete has become a cornerstone in architectural and engineering innovation, as it seamlessly integrates structural performance with artistic expression. Its evolution from ancient opus caementicium to contemporary ultra‐high‐performance concrete illustrates its adaptability to the change in technological, environmental, and design paradigms.
Mouhcine Benaicha, Khalid El Harrouni, Samir Kabouss   +2 more
wiley   +1 more source

Effective axial strength of laterally strengthened RC pier heads with post‐tensioning method

Structural Concrete, EarlyView.
Abstract This study investigates the structural performance enhancement of reinforced concrete (RC) pier heads laterally strengthened with unbonded post‐tensioning (PT) to accommodate increased design loads following a deck replacement of an existing railway bridge.
Yujae Seo, Hyunjin Ju, Benjamin Täubling‐Fruleux, Alfred Strauss   +3 more
wiley   +1 more source

Ultra-High-Performance Concrete Crack Propagation Based on Fiber Random Distribution Model

Frontiers in Materials, 2022
The tensile strength, crack behavior, and strain-hardening properties of ultra-high-performance concrete (UHPC) are mainly affected by the steel fibers distributed in the matrix. In this study, a mesoscopic model of UHPC was established using a numerical
Ziruo Yu, Weizhi Liang, Mingzhe An, Yue Wang   +3 more
doaj   +1 more source

KICT’s Application of UHPC to the First UHPC Cable Stayed Roadway Bridge

First International Interactive Symposium on UHPC, 2016
This paper presents systematic research of Korea Institute of Civil Engineering and Building Technology (KICT) to develop a competitive structural system using the advantages of Ultra High Performance Concrete (UHPC). Three projects have been proceeding for the material technology of UHPC (K-UHPC), K-UHPC guidelines and the application of UHPC to a ...
Byung-Suk Kim, Changbin Joh, Gyung-Taek Koh, Jongbum Park, Kihyon Kwon, Sung-Yong Park   +5 more
openaire   +1 more source

Concrete with a very high number of load cycles—Identification of stress levels for efficient investigation of fatigue behavior

Structural Concrete, EarlyView.
Abstract Fatigue stresses are receiving increasing attention in structural engineering, particularly in the design of increasingly slender structures. However, the mechanical response of concrete—particularly its fatigue behavior under very high numbers of load cycles—is still scarcely understood.
Kerstin Willers, Lutz Gerlach, Frank Dehn   +2 more
wiley   +1 more source

Identification of brittle damage in a UHPC beam using ultrasonic transmission tomography

Budownictwo o Zoptymalizowanym Potencjale Energetycznym
This paper presents the results of ultrasonic testing conducted on a steel fiber-reinforced UHPC (Ultra-High Performance Concrete) beam with dimensions of 0.2 m × 0.24 m × 6.0 m.
Karolina Tatara, Piotr Adam Bońkowski
doaj   +1 more source

Experimental investigation on UHPC shrinkage of full-scale steel-UHPC composite bridge deck

Developments in the Built Environment, 2023
Three full-scale composite bridge deck segments with various steel-to-UHPC area ratios, as well as free shrinkage specimens, were tested to investigate the restrained shrinkage and cracking behaviors. Based on the measured UHPC strain and temperature, the variations in shrinkage strain were analyzed, and a time-varying analysis theory for calculating ...
Chuanxi Li, Yu Shi, Jiale Zhou, Changle Fang, Jun He, Longfei He   +5 more
openaire   +2 more sources

Contribution of dowel action to interfacial shear transfer in flat joints with unbonded posttensioned bars for precast segmental bridges

Structural Concrete, EarlyView.
Abstract Dry joints are widely used in precast segmental bridge construction because they simplify assembly and accelerate erection. Incorporating fasteners crossing flat dry joints represents an innovative configuration for this type of connection.
Rogelio Franco Segarra, Pedro Miguel Sosa, José Luís Bonet Senach, Alberto García Cárcel   +3 more
wiley   +1 more source

Ultra-high-performance concrete: Constituents, mechanical properties, applications and current challenges

Case Studies in Construction Materials, 2021
Ultra-high-performance concrete (UHPC) is a new class of concrete developed in France in the 1990s with superior characteristics including high workability, high compressive strength, increased ductility, and high resistance to environmental attacks ...
Amin K. Akhnoukh, Chelsea Buckhalter
doaj   +1 more source