scholarly journals Reinforced concrete and fiber reinforced concrete panels subjected to blast detonations and post-blast static tests

2014 ◽  
Vol 76 ◽  
pp. 24-33 ◽  
Author(s):  
C.P. Pantelides ◽  
T.T. Garfield ◽  
W.D. Richins ◽  
T.K. Larson ◽  
J.E. Blakeley
Keyword(s):  
Reinforced Concrete ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Static Tests ◽  
Concrete Panels

scholarly journals A SOLUTION OF SUBORDINATE VERTICES FOR QUALITY CONNECTIONS OF EXTERNAL FREE-FORM CONCRETE PANELS

2018 ◽  
Vol 24 (5) ◽  
pp. 399-409
Author(s):  
Jeeyoung Lim ◽  
Seunghyun Son ◽  
Do Yeong Kim ◽  
Heni Fitriani ◽  
Sunkuk Kim
Keyword(s):  
Reinforced Concrete ◽  
Glass Fiber ◽  
Fiber Reinforced Concrete ◽  
Junction Point ◽  
Free Form ◽  
Fiber Reinforced ◽  
Aesthetic Quality ◽  
Concrete Panels ◽  
Glass Fiber Reinforced

3D-designs of free-form buildings are developed using a computer due to difficulty of shape implementation. When producing free-form concrete panel (FCP) using materials such as GFRC (glass fiber reinforced concrete), engineers or manufacturers should precisely calculate the offset value or geometry of each member at the junction point of three or more FCPs before it is constructed. However, it is difficult to calculate offset geometry easily and quickly, and no research has been conducted on this topic. Therefore, the objective of this paper is to develop a solution of subordinate vertices for quality connections of external free-form concrete panels. The developed mathematical solutions practically support the production of FCPs with precise installation to ensure aesthetic quality of the building. This paper academically contributes to the automatic creation of joint details of FCPs implemented by BIM.

Relationship between Fiber Orientation and Flexural Strength in Ultra-High-Performance Fiber-Reinforced Concrete Panels

2014 ◽  
Vol 629-630 ◽  
pp. 71-78 ◽  
Author(s):  
Bo Zhou ◽  
Yuichi Uchida
Keyword(s):  
Reinforced Concrete ◽  
Flexural Strength ◽  
Fiber Orientation ◽  
High Performance ◽  
Fiber Reinforced Concrete ◽  
Bending Test ◽  
Fiber Reinforced ◽  
Three Point Bending ◽  
Concrete Panels ◽  
High Performance Fiber

In this study, the influence of fiber orientation on the flexural strength of ultra-high-performance fiber-reinforced concrete (UHPFRC) was examined. To this end, a circular UHPFRC panel measuring φ1,200 × 50 mm was cast from its center, and test specimens measuring 50 × 50 × 200 mm with 10 mm notches for three-point bending tests were cut from it with angles of 0, 30, 60 and 90° between the specimen axis and the radial direction of the panel. After the bending test, fiber orientation on the ruptured surfaces of the specimens was observed. The flexural strengths of the specimens cut at angles of 60, 30 and 0° were 80, 40 and 10% of that for the specimen cut at an angle of 90°. It was also found that the flexural strength of specimens cut from a rectangular panel cast from its center point depended on their original positions and orientation within the panel. Similar fiber orientation characteristics were found in the circular and rectangular panels.

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