A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Interface characteristics and laboratory constructability tests of novel fiber-reinforced polymer/concrete piles
This study is focused on the interface characteristics and constructablility of FRP-concrete hybrid piles. SCC (self-consolidating concrete) is used to assure the structural integrity of piles and to eliminate air pockets. The SCC is cast in FRP tubes. The prime objectives of this study are to evaluate the FRP/sand interface behavior for deep foundation applications and to develop an efficient installation tchnique for FRP-SCC hybrid piles. The interface characteristics between FRP and dry dense sand and the constructability of FRP-SCC hybrid piles are examined in this paper. The IST (interface shear test) tests and uplift pile load tests were carried out on two FRP composite materials and on a steel specimen in dry dense sand. The IST test results showed that the rough FRP surface coupled with rounded sand results in a brittle interface behavior and strain softening at high displacement levels. The inexpensive tests can be used efficiently to capture the skin friction characteristics of FRP piles installed in granular soils. The use of FRP materials in deep foundations should be an added advantage due to their resistance to degradation in addition to increased shaft frictional resistance. Drivability tests showed that FRP-SCC hybrid piles can be constructed either by installing the composite pile using head driving or installing the FRP shell using head driving or installing the FRP shell using toe driving and then casting the SCC inside the shell.
Interface characteristics and laboratory constructability tests of novel fiber-reinforced polymer/concrete piles
This study is focused on the interface characteristics and constructablility of FRP-concrete hybrid piles. SCC (self-consolidating concrete) is used to assure the structural integrity of piles and to eliminate air pockets. The SCC is cast in FRP tubes. The prime objectives of this study are to evaluate the FRP/sand interface behavior for deep foundation applications and to develop an efficient installation tchnique for FRP-SCC hybrid piles. The interface characteristics between FRP and dry dense sand and the constructability of FRP-SCC hybrid piles are examined in this paper. The IST (interface shear test) tests and uplift pile load tests were carried out on two FRP composite materials and on a steel specimen in dry dense sand. The IST test results showed that the rough FRP surface coupled with rounded sand results in a brittle interface behavior and strain softening at high displacement levels. The inexpensive tests can be used efficiently to capture the skin friction characteristics of FRP piles installed in granular soils. The use of FRP materials in deep foundations should be an added advantage due to their resistance to degradation in addition to increased shaft frictional resistance. Drivability tests showed that FRP-SCC hybrid piles can be constructed either by installing the composite pile using head driving or installing the FRP shell using head driving or installing the FRP shell using toe driving and then casting the SCC inside the shell.
Interface characteristics and laboratory constructability tests of novel fiber-reinforced polymer/concrete piles
Grenzflächeneigenschaften und Laboruntersuchungen zur Einbaubarkeit von neuartigen Gründungspfeilern aus faserverstärktem Kunststoff und Beton
Sakr, M. (author) / Naggar, M.H. El (author) / Nehdi, M. (author)
Journal of Composites for Construction ; 9 ; 274-283
2005
10 Seiten, 11 Bilder, 5 Tabellen, 21 Quellen
Article (Journal)
English
| British Library Online Contents | 2005
Interface Shear Tests on Fiber Reinforced Polymer (FRP) Composite Piles
| British Library Conference Proceedings | 2002
Loading tests of reinforced-concrete piles
| Engineering Index Backfile | 1927