Concept

Structure spatiale

Publications associées (39)

Designing tensegrity modules for pedestrian bridges

Ian Smith, Landolf-Giosef-Anastasios Rhode-Barbarigos, Nizar Bel Hadj Ali, René Motro

Tensegrity systems are spatial structures composed of tensile and compression components in a self-equilibrated state of prestress. The tensegrity concept has already been studied by researchers in various fields over the past decades. A family of tensegri ...

Elsevier2010

Experimental investigation into the shear resistance of a reinforced UHPFRC web element

Eugen Brühwiler, Talayeh Noshiravani, Karl Telleen, Rita Galrito

Ultra-high performance fiber reinforced concrete (UHPFRC) can be implemented in combination with steel reinforcing bars to enhance the performance of UHPFRC elements subject to shear stresses. This paper presents an experimental investigation into the beha ...

fib PhD Symposium2010

Fatigue Testing and Analysis of an Orthotropic Bridge Welded Detail Using Structural Hot Spot Stress Method

Farshid Zamiri Akhlaghi

At present, more powerful tools for numerical modelling and structural analysis are available for the use in fatigue design and assessment of complex structures. Taking advantage of these tools, structural hot spot stress approach (SHSS) can predict the fa ...

CETIM2009

Towards a Five-Axis Machining CAPP System: A Set-Up Planning Tool Solving Accessibility Constraints

The overall aim of the authors' work is to create a computer aid to support the macroplanning of five-axis parts, and in this context this paper presents the methodology developed to enable the determination of set-up orientations on five-axis machine-tool ...

2009

Modal parameter identification for a GFRP pedestrian bridge

Thomas Keller, Yu Bai

Dynamic experiments were conducted on an all-FRP composite pedestrian bridge. The structure was excited by impact and human-induced vibrations. The peak-picking method and stochastic subspace identification method were used to extract structural dynamic ch ...

2008

Size effects in the fatigue behaviour of tubular bridge joints

Luís Costa Borges

A critical aspect in the design of tubular bridges is the fatigue performance of the structural joints. Economic viability depends on it. Lower fatigue strength for joints with thicker failing members was observed in welded joints typical to the bridge app ...

EPFL2008

Piezoresistive scanning probe arrays for operation in liquids

Nico de Rooij, Terunobu Akiyama, Laure Aeschimann, André Meister

Piezoresistive scanning probe arrays have been developed in view of operation in liquid environments. When the cantilevers are immersed in electrically conductive solutions like for instance physiological buffers, the piezoresistive sensing elements as wel ...

2007

Experimental study on the fatigue behaviour of welded tubular K-joints for bridges

Alain Nussbaumer, Ann Schumacher

Fatigue tests were carried out on welded circular hollow section K-joints typical to bridges. The tests specimens were large-scale (approximately 9 m long and 2 m high) trusses loaded in the plane of the truss. Measured member stresses showed that a signif ...

Elsevier2006

On the constants in hp-finite element trace inverse inequalities

Jan Sickmann Hesthaven

We derive inverse trace inequalities for hp-finite elements. Utilizing orthogonal polynomials, we show how to derive explicit expressions for the constants when considering triangular and tetrahedral elements. We also discuss how to generalize this techniq ...

Elsevier2003

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