High-Performance Concrete Carpet: A Hydraulic Flexible Wearing Course. Part II: Full-scale testing

2005 ◽  
Vol 6 (4) ◽  
pp. 549-564
Author(s):  
François de Larrard ◽  
Jean-Pierre Kerzérho ◽  
Jean-Marc Potier ◽  
Ludovic Baroin ◽  
Joseph Abdo
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Full Scale ◽  
Full Scale Testing

scholarly journals Experimental Behavior of Precast Bridge Deck Systems with Non-Proprietary UHPC Transverse Field Joints

Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 6964
Author(s):  
Mohamed Abokifa ◽  
Mohamed A. Moustafa
Keyword(s):  
High Performance ◽  
Bridge Deck ◽  
High Performance Concrete ◽  
Experimental Testing ◽  
Bridge Decks ◽  
Transverse Field ◽  
Full Scale ◽  
Bridge Construction ◽  
Vertical Loading ◽  
Precast Bridge Deck

Full-depth precast bridge decks are widely used to expedite bridge construction and enhance durability. These deck systems face the challenge that their durability and performance are usually dictated by the effectiveness of their field joints and closure joint materials. Hence, commercial ultra-high performance concrete (UHPC) products have gained popularity for use in such joints because of their superior mechanical properties. However, the proprietary and relatively expensive nature of the robust UHPC mixes may pose some limitations on their future implementation. For these reasons, many research agencies along with state departments of transportation sought their way to develop cheaper non-proprietary UHPC (NP-UHPC) mixes using locally supplied materials. The objective of this study is to demonstrate the full-scale application of the recently developed NP-UHPC mixes at the ABC-UTC (accelerated bridge construction university transportation center) in transverse field joints of precast bridge decks. This study included experimental testing of three full-scale precast bridge deck subassemblies with transverse NP-UHPC field joints under static vertical loading. The test parameters included NP-UHPC mixes with different steel fibers amount, different joint splice details, and joint widths. The results of this study were compared with the results of a similar proprietary UHPC reference specimen. The structural behavior of the test specimens was evaluated in terms of the load versus deflection, reinforcement and concrete strains, and full assessment of the field joint performance. The study showed that the proposed NP-UHPC mixes and field joint details can be efficiently used in the transverse deck field joints with comparable behavior to the proprietary UHPC joints. The study concluded that the proposed systems remained elastic under the target design service and ultimate loads. In addition, the study showed that the use of reinforcement loop splices enhanced the load distribution across the specimen’s cross-section.

Seismic performance of a full-scale, reinforced high-performance concrete building. Part II: Analytical study

2008 ◽  
Vol 35 (8) ◽  
pp. 849-862 ◽  
Author(s):  
Sébastien Mousseau ◽  
Patrick Paultre ◽  
Jacky Mazars
Keyword(s):  
High Performance ◽  
Damage Mechanics ◽  
High Performance Concrete ◽  
Full Scale ◽  
Building Structures ◽  
Test Results ◽  
Seismic Behaviour ◽  
Analysis And Design ◽  
Advantages And Disadvantages ◽  
Concrete Building

Full-scale tests provide valuable information on the characteristics of building structures that can be used to evaluate design methods, to calibrate modelling techniques, and to determine damage corresponding to loading levels. These tests are scarce due to the enormous requirements in testing space and specialized testing equipment. The seismic behaviour of a full-scale, two-storey, reinforced high-performance concrete building designed with moderate ductility detailing is evaluated by pseudo-dynamic testing, during which increasing seismic loads are applied, resulting in increasing levels of permanent damage to the structure. This paper presents the analytical predictions of the test results using a global force–displacement parameters approach and a refined approach, half-way between global modelling and finite element modelling, using force–strain parameters and damage mechanics principles. Identification of the parameters required to describe the response parameters are presented together with a description of the numerical procedures used in each approach. It is shown that the predictions are in good agreement with the test results. Advantages and disadvantages of each approach are highlighted in the context of performance-based analysis and design.

Full-scale bending test and parametric study on a 30-m span prestressed ultra-high performance concrete box girder

2019 ◽  
Vol 23 (7) ◽  
pp. 1276-1289 ◽  
Author(s):  
Jia-zhan Su ◽  
Xi-lun Ma ◽  
Bao-chun Chen ◽  
Khaled Sennah
Keyword(s):  
Parametric Study ◽  
High Performance ◽  
High Performance Concrete ◽  
Full Scale ◽  
Bending Test ◽  
Ultra High Performance Concrete ◽  
Original Design ◽  
Cross Sectional ◽  
Box Girder ◽  
Concrete Box Girder

Due to its structural efficiency, durability, and cost-effectiveness, ultra-high performance concrete was utilized to build the first highway overpass bridge in China. The bridge was made of prestressed ultra-high performance concrete box girders of four continuous spans of 30 m each. As the original design of such bridge was observed to be somewhat conservative, its cross-sectional dimensions, in the form of the box girder wall thicknesses were optimized in this research to lower the material cost in future bridge construction. Then, a full-scale simply supported ultra-high performance concrete box girder of 30 m span, incorporating the new box girder wall thicknesses, was fabricated and then tested under static loading to obtain research data to justify the revised design. The loading system was designed to examine the flexural behavior of the girder using two concentrated loads symmetrically located at the mid-span. Experimental results show that the optimized girder has a favorable ductile behavior and excellent flexural strength, which can meet the design requirements for serviceability and ultimate limit states. A finite element model of the tested girder was developed, using ABAQUS software, and then was verified using the experimental findings. A parametric study was then conducted to investigate the influence of key parameters on the structural response, namely, the reinforcement ratio, the number of the prestressing wires, and the web thickness. Recommendations on minimum and maximum compressive strength and tensile property of ultra-high performance concrete were proposed. Also, a simplified calculation method of prestressed ultra-high performance concrete box girder was developed based on a verified strain and stress diagrams for cross-sectional analysis. The proposed methodology can be used in future practice with confidence.

Seismic performance of a full-scale, reinforced high-performance concrete building. Part I: Experimental study

2008 ◽  
Vol 35 (8) ◽  
pp. 832-848 ◽  
Author(s):  
Sébastien Mousseau ◽  
Patrick Paultre
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Dynamic Testing ◽  
Dynamic Properties ◽  
Full Scale ◽  
Building Structures ◽  
Seismic Behaviour ◽  
Earthquake Excitation ◽  
Concrete Building ◽  
Full Scale Tests

Full-scale tests provide valuable information on the characteristics of building structures that can be used to evaluate design methods, to calibrate modelling techniques, and to determine damage corresponding to loading levels. These tests are scarce due to the enormous requirements in testing space and specialized testing equipment. The seismic behaviour of a full-scale, two-storey, reinforced high-performance concrete building designed with moderate ductility detailing is evaluated by pseudo-dynamic testing, during which increasing seismic loads are applied, resulting in increasing levels of permanent damage to the structure. To monitor the level of damage, a series of successive forced-vibration tests are also carried out at each step of the process and are used to track changes in the key dynamic properties of the building. The paper presents the design of the test structure according to the new edition of the CSA A23.3-04 Design of concrete structures standard, the series of pseudo-dynamic tests simulating different levels of earthquake excitation consistent with the 2005 edition of the National building code of Canada, and the evaluation of the performance of the building. It is shown that the detailing requirements of CSA A23.3-04 are more than adequate to provide the ductility and overstrength expected.

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