Publications by Julia De Castro San Roman Fest

Long-term design of GFRP-PUR web-core sandwich structures

Julia De Castro San Roman Fest, Thomas Keller, Sonia Yanes Armas

2018

Integration of dye solar cells in load- bearing translucent glass fiber- reinforced polymer laminates

Julia De Castro San Roman Fest, Thomas Keller, Andreas Schueler, Carlos Pascual Agullo

The encapsulation of dye solar cells in translucent, structural and lightweight glass fiber-reinforced polymer laminates was investigated with a view to designing multifunctional envelopes for daylit buildings. Small and large integrating sphere experiment ...

SAGE Publications2017

Long-term design of FRP-PUR web-core sandwich structures in building construction

Julia De Castro San Roman Fest, Thomas Keller, Sonia Yanes Armas

The structural behavior of GFRP-polyurethane (PUR) web-core sandwich structures subjected to sustained loading was investigated. As a basis, a study of the mechanical behavior of rigid PUR foams used as core materials was conducted, with emphasis on creep. ...

Elsevier2017

Rotational stiffness of web-flange junctions of pultruded GFRP decks

Julia De Castro San Roman Fest, Thomas Keller, Sonia Yanes Armas

The rotational behavior of the web-flange junctions (WFJs) of a pultruded glass fiber-reinforced polymer (GFRP) bridge deck system with trapezoidal cell cross-sectional geometry was investigated. The rotational response of three WFJ types, in two bending m ...

Elsevier2017

Aramid/glass fiber-reinforced thermal break - thermal and structural performance

Julia De Castro San Roman Fest, Thomas Keller, Kyriaki Goulouti

Energetically weak points in thermally insulated building envelopes are formed by thermal breaks that are implemented to structurally connect external balconies to internal slabs. Current thermal breaks comprise stainless steel bars that penetrate the insu ...

Elsevier2016

System transverse in-plane shear stiffness of pultruded GFRP bridge decks

Julia De Castro San Roman Fest, Thomas Keller, Sonia Yanes Armas

The static transverse behavior of two pultruded GFRP deck systems with trapezoidal (DS) and triangular (AS) cell cross-sectional geometry was experimentally investigated in order to study their transverse in-plane shear stiffness. Symmetric three-point ben ...

Elsevier2016

Aramid/glass fiber-reinforced thermal break - Structural system performance

Julia De Castro San Roman Fest, Thomas Keller, Kyriaki Goulouti

Energetically critical points in thermally insulating building envelopes are caused by penetrations of building interior concrete slabs through the envelope insulation layers to create external balconies. A new highly insulating balcony thermal break eleme ...

Elsevier2016

Effect of Natural Weathering on Durability of Pultruded Glass Fiber-Reinforced Bridge and Building Structures

Julia De Castro San Roman Fest, Thomas Keller, Anastasios Vassilopoulos, Nikolaos Alexandros Theodorou

After 17 and 15years of use, respectively, a detailed inspection of a pedestrian bridge and a 5-story building structure composed of partly adhesively bonded pultruded glass fiber-reinforced polymer (GFRP) profiles was conducted accompanied by full-scale s ...

American Society of Civil Engineers2016

Energy dissipation and recovery in web-flange junctions of pultruded GFRP decks

Julia De Castro San Roman Fest, Thomas Keller, Sonia Yanes Armas

The energy dissipation capacity resulting from progressive cracking and the recovery after unloading of the web-flange junctions (WFJs) of a pultruded GFRP deck were experimentally investigated. Web-cantilever bending experiments up to failure were perform ...

Elsevier2016

Optically-derived mechanical properties of glass fiber-reinforced polymer laminates for multifunctional load-bearing structures

Julia De Castro San Roman Fest, Thomas Keller, Andreas Schueler, André Gabriel Kostro, Anastasios Vassilopoulos, Carlos Pascual Agullo

This paper demonstrates how the translucency of glass fiber-reinforced polymer (GFRP) laminates allows the derivation of their mechanical properties through optical measurements. Spectrophotometric, goniophotometric and tensile experiments were performed o ...

SAGE Publications2015

Time-dependent mechanical behavior of acrylic adhesives

Julia De Castro San Roman Fest, Thomas Keller, Anastasios Vassilopoulos, Myrsini Angelidi

2015

Energy dissipation in web-flange junctions of pultruded GFRP decks

Julia De Castro San Roman Fest, Thomas Keller, Sonia Yanes Armas

The energy dissipation capacity resulting from progressive cracking of the web-flange junctions (WFJs) of a pultruded GFRP deck system was experimentally investigated. Web-cantilever bending experiments up to failure were performed on two WFJ types (IfO, I ...

2015

Performance in Transverse Direction of Fiber‐Reinforced Polymer Bridge Decks

Julia De Castro San Roman Fest, Thomas Keller, Sonia Yanes Armas

Pultruded glass fiber‐reinforced polymer (GFRP) bridge decks distribute punctual vehicular loads to the underlying superstructure and can also act as the upper chord of hybrid main girders. The deck’s structural performance in both cases is influenced by i ...

International Association for Bridge and Structural Engineering - IABSE2015

Static performance in transverse direction of pultruded GFRP bridge decks

Julia De Castro San Roman Fest, Thomas Keller, Anastasios Vassilopoulos, Sonia Yanes Armas

Pultruded glass fiber-reinforced polymer (GFRP) bridge decks distribute punctual vehicular loads to the underlying superstructure and can also act as the upper chord of hybrid main girders. The deck’s structural performance in both cases is influenced by i ...

2014

Total light transmittance of GFRP laminates for building construction

Julia De Castro San Roman Fest, Thomas Keller, Anastasios Vassilopoulos, Carlos Pascual Agullo

The total light transmittance of hand lay-up glass fiber-reinforced polymer (GFRP) laminates for building construction was investigated for the purpose of two architectural applications: translucent load-bearing building envelopes and the encapsulation of ...

2014

GFRP-Balsa Sandwich Bridge Deck: Concept, Design, and Experimental Validation

Julia De Castro San Roman Fest, Thomas Keller, Michael Osei-Antwi

The concept, design, and experimental validation of the new Avancon Bridge in Bex, Switzerland, are described. The lightweight glass fiber-reinforced polymer (GFRP) sandwich bridge deck adhesively bonded to steel girders, reduced the traffic disruption per ...

American Society of Civil Engineers2014

Total light transmittance of glass fiber-reinforced polymer laminates for multifunctional load-bearing structures

Julia De Castro San Roman Fest, Thomas Keller, Andreas Schueler, Anastasios Vassilopoulos, Carlos Pascual Agullo

The total light transmittance of hand lay-up glass fiber-reinforced polymer laminates for building construction was investigated with a view to two architectural applications: translucent load-bearing structures and the encapsulation of photovoltaic cells ...

SAGE Publications2014

FRP-balsa composite sandwich bridge deck with complex core configuration

Julia De Castro San Roman Fest, Thomas Keller, Anastasios Vassilopoulos, Michael Osei-Antwi

The aim of this work was to investigate to what extent the performance of a glass fiberreinforced polymer (GFRP) sandwich slab-bridge with uniform high-density balsa core could be improved in terms of structural efficiency and weight thanks to a more compl ...

2014

GFRP-balsa sandwich bridge deck: Concept, design and experimental validation

Julia De Castro San Roman Fest, Thomas Keller, Michael Osei-Antwi

The concept, design and experimental validation of the new Avançon Bridge in Bex, Switzerland, are described. The lightweight glass fiber-reinforced polymer (GFRP) sandwich bridge deck adhesively bonded to steel girders reduced the traffic disruption perio ...

2014

Structural limits of FRP-balsa sandwich decks in bridge construction

Julia De Castro San Roman Fest, Thomas Keller, Michael Osei-Antwi

The span limits of two glass fiber-reinforced polymer (GFRP) bridge concepts involving GFRP-balsa sandwich plates are discussed. The sandwich plates were either used directly as slab bridges or as decks of a hybrid sandwich-steel girder bridges. In the lat ...

International Association for Bridge and Structural Engineering2014