scholarly journals PRODUCTIVITY AND STRUCTURAL PERFORMANCE OF STEEL/PRECAST CONCRETE HYBRID STRUCTURAL SYSTEM USING FLAT-STEEL-PLATE-CONNECTIONS

1999 ◽  
Vol 5 (7) ◽  
pp. 157-160
Author(s):  
Koichi SUZUKI ◽  
Tomohiro YOSHIDA ◽  
Akio TOMITA ◽  
Yukitada OGIHARA
Keyword(s):  
Steel Plate ◽  
Precast Concrete ◽  
Structural Performance ◽  
Structural System ◽  
Flat Steel ◽  
Plate Connections

Structural Performance of a Precast Beam to Column Connection Strengthened with FRP under Monotonic Loading

2018 ◽  
Vol 878 ◽  
pp. 121-125
Author(s):  
Charles K.S. Moy
Keyword(s):  
Steel Plate ◽  
Precast Concrete ◽  
High Strength ◽  
Careful Consideration ◽  
Structural Performance ◽  
Rotational Stiffness ◽  
Basalt Fibre ◽  
Reinforced Polymer ◽  
The World ◽  
Fibre Reinforced Polymer

Over the years, precast concrete construction has been employed in many parts of the world mainly because it is less labour intensive and rapid. However, its connection remains in many cases an issue that requires careful consideration at both the design and construction stages. More precisely, the ductility and rotational stiffness are often challenging factors that need to be considered. In that perspective, this work focuses on finding the improvement of a precast beam-to-column connection with strengthening from fibre reinforced polymer (FRP). High strength basalt fibre fabric was used in this particular study. The study revealed a net improvement in the connection’s rotational stiffness and ductility. It was also found that the addition of a steel plate on top of the FRP contributed to maintaining the strength of the connection under late plastic deformation.

scholarly journals Experimental and Numerical Studies on the Structural Performance of a Double Composite Wall

2021 ◽  
Vol 11 (2) ◽  
pp. 506
Author(s):  
Sun-Jin Han ◽  
Inwook Heo ◽  
Jae-Hyun Kim ◽  
Kang Su Kim ◽  
Young-Hun Oh
Keyword(s):  
Shear Strength ◽  
Precast Concrete ◽  
Structural Performance ◽  
Behavioral Characteristics ◽  
Element Analysis ◽  
Numerical Studies ◽  
Shear Performance ◽  
Flexural Analysis ◽  
Composite Wall ◽  
Current Code

In this study, experiments and numerical analyses were carried out to examine the flexural and shear performance of a double composite wall (DCW) manufactured using a precast concrete (PC) method. One flexural specimen and three shear specimens were fabricated, and the effect of the bolts used for the assembly of the PC panels on the shear strength of the DCW was investigated. The failure mode, flexural and shear behavior, and composite behavior of the PC panel and cast-in-place (CIP) concrete were analyzed in detail, and the behavioral characteristics of the DCW were clearly identified by comparing the results of tests with those obtained from a non-linear flexural analysis and finite element analysis. Based on the test and analysis results, this study proposed a practical equation for reasonably estimating the shear strength of a DCW section composed of PC, CIP concrete, and bolts utilizing the current code equations.

scholarly journals Experimental/Numerical Evaluation of Steel Trapezoidal Corrugated Infill Panels with an Opening

2021 ◽  
Vol 11 (7) ◽  
pp. 3275
Author(s):  
Majid Yaseri Gilvaee ◽  
Massood Mofid
Keyword(s):  
Energy Dissipation ◽  
Ultimate Strength ◽  
Steel Plate ◽  
Shear Walls ◽  
Experimental Results ◽  
Structural Performance ◽  
Initial Stiffness ◽  
Infill Panels ◽  
Energy Dissipation Capacity ◽  
Ductility Ratio

This paper investigates the influence of an opening in the infill steel plate on the behavior of steel trapezoidal corrugated infill panels. Two specimens of steel trapezoidal corrugated shear walls were constructed and tested under cyclic loading. One specimen had a single rectangular opening, while the other one had two rectangular openings. In addition, the percentage of opening in both specimens was 18%. The initial stiffness, ultimate strength, ductility ratio and energy dissipation capacity of the two tested specimens are compared to a specimen without opening. The experimental results indicate that the existence of an opening has the greatest effect on the initial stiffness of the corrugated steel infill panels. In addition, the experimental results reveal that the structural performance of the specimen with two openings is improved in some areas compared to the specimen with one opening. To that end, the energy dissipation capacity of the specimen with two openings is obtained larger than the specimen with one opening. Furthermore, a number of numerical analyses were performed. The numerical results show that with increasing the thickness of the infill plate or using stiffeners around the opening, the ultimate strength of a corrugated steel infill panel with an opening can be equal to or even more than the ultimate strength of that panel without an opening.

Development of a new class of precast concrete pipes - an experimental evaluation

2007 ◽  
Vol 34 (7) ◽  
pp. 885-889 ◽  
Author(s):  
H El Naggar ◽  
E N Allouche ◽  
M H. El Naggar
Keyword(s):  
Experimental Evaluation ◽  
Solid Wall ◽  
Research Effort ◽  
Precast Concrete ◽  
Load Test ◽  
Added Value ◽  
Structural Performance ◽  
Concrete Pipes ◽  
Concrete Pipe ◽  
Cellular Concrete

Concrete pipes represent the backbone of the municipal storm and wastewater collection systems of Ontario, Canada. Industry and academia partnered on a research effort that aimed at developing new precast-concrete pipe products that provide added value to the final user in comparison with existing products. This paper describes a full-scale experimental evaluation of the design, manufacturing, and performance aspects of a "cellular" concrete pipe, a precast concrete pipe in which multiple continuous conduits were incorporated within its wall. Two fully-instrumented prototype segments of the proposed cellular concrete pipe were manufactured using standard dry-cast manufacturing procedures. The pipe segments were subjected to a D-load test to evaluate their structural performance. The observed structural performance was found to be comparable to solid-wall specimens, particularly when a four-conduit configuration was used. Of the six materials used as conduits, PVC and aluminum were found to perform the best. The presence of the conduits appears to delay the on-set of major cracks, thus increasing the D-load value. Key words: precast, concrete, pipe, experimental, conduit system, trenchless construction methods.

scholarly journals Structural shear performance of insulated precast concrete sandwich panels with steel plate connectors

2020 ◽  
Vol 215 ◽  
pp. 110691 ◽  
Author(s):  
Oliver Kinnane ◽  
Roger West ◽  
Richard O. Hegarty
Keyword(s):  
Steel Plate ◽  
Precast Concrete ◽  
Sandwich Panels ◽  
Shear Performance

scholarly journals Hollow bridge columns with triangular confining reinforcement

2019 ◽  
Vol 46 (6) ◽  
pp. 467-480
Author(s):  
Tae-Hoon Kim ◽  
Ick-Hyun Kim ◽  
Jae-Hoon Lee ◽  
Hyun Mock Shin
Keyword(s):  
Evaluation System ◽  
Precast Concrete ◽  
Lateral Load ◽  
Bridge Columns ◽  
Structural Performance ◽  
Dissipated Energy ◽  
Concrete Bridge ◽  
Element Analysis ◽  
Joint Element ◽  
Cumulative Dissipated Energy

The purpose of this study is to assess the structural performance of hollow bridge columns with triangular confining reinforcement. The proposed triangular reinforcement details were equal to the conventional reinforcement details in terms of required structural performance. The triangular confining reinforcement is also economically feasible and rational, and facilitate shorter construction periods. Three hollow cast-in-situ concrete and three precast concrete bridge columns were tested. The behavior of the hollow columns is discussed in terms of their lateral load-drift relationship, cumulative dissipated energy, and lateral load-strain curves. The nonlinear finite element analysis program RCAHEST (reinforced concrete analysis in higher evaluation system technology) was used to analyze hollow bridge columns, and adopted a modified joint element for the precast concrete bridge columns. The results showed that the proposed innovative reinforcement details were superior to the conventional reinforcement details, in terms of the required structural performance.

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