Soletanche Freyssinet

Erik Mellier

Jérôme Stubler

Jean-Daniel Lebon

Jerome Stubler

Stephane Joye

Aurélien Sylvestre

Charles-Emmanuel Ferrand De La Conte

Christian Tourneur

Ivica Zivanovic

Nicolas Fabry

Stefano Gabaldo

Gilles Hovhanessian

Thierry Jeanmaire

Benoit Melen

Patrick Bermingham

Brice Le Treut

Stéphanie Joye

Memphis Loygue

Alexandre Chaperon

Stéphane Joye

Patrick D Bermingham

Stefano L Gabaldo

Charles-Emmanuel Ferrand De La Conté

Benoit Lecinq

The invention has for object a method for manufacturing concrete construction blocks () for a wind-generator tower made up of at least two consecutive blocks secured to one another by a contact surface of each of the two blocks, the manufacturing method comprising the following steps:

Method for manufacturing concrete construction blocks for a wind-turbine tower and associated system

A vibration damping device for suspension-bridge type cables includes first and second linear dampers supported by a generally V-shaped support member mounted to the bridge deck.

Device for damping vibrations of a cable

A method for building a bridge, said bridge comprising piers and at least one deck. The method including a cantilever step, wherein a girder is set in a cantilevered position relative to a bank or to a constructed zone of the bridge so that the girder comprises a first end overhanging the bank or the constructed zone, and a second end overhanging a construction zone of the bridge, and a construction step, wherein pier elements and deck elements are installed in said construction zone via a first and a second lifting devices mounted movable on the girder between the first and second ends. The first and second lifting devices cross one another along the girder during the cantilever step and/or during the construction step.

Method for building a bridge and bridge-building apparatus

A contribution is made to the assembly of a wind turbine intended to comprise, in a final assembly condition, a tower () surmounted by a nacelle () cooperating with a rotor () receiving a plurality of blades (-). To this end, a temporary association is made between at least some blades from said plurality of blades and the tower, so that said blades extend substantially in the longitudinal direction of the tower.

Method, system and device for contributing to the assembly of a wind turbine

A method of damping the vibrations of at least one pair of stay cables of a civil engineering structure, in which the stay cables of said pair are linked by a damper having a first stiffness in response to tensile stress and a second stiffness in response to compressive stress, the first stiffness being greater than the second stiffness.

Method of damping the vibrations of stay cables and associated system

The invention relates to a prestressed diaphragm wall in the ground () including a concrete panel (), at least one anchor tube open at its upper end () and closed at its lower end () and, embedded at least partially in the concrete panel, at least one cable () extending inside the anchor tube (), a lower portion of the cable () being fixed to said tube (), and a cable anchoring system (), configured to hold the cable in tension () and secure its upper portion () to the upper portion of the concrete panel (). It also relates to a method for making a prestressed diaphragm wall.

Pre-stressed molded wall, and method for creating such a wall

A device () for damping vibrations in a cable () comprises an arm () oscillating about a pivot (), a first damper () for damping the oscillations of the arm, a coupler () attached to the cable, a second, linear-travel damper () having an upper end connected to the coupler and a lower end connected to the arm, and a guide () for sliding the coupler with respect to the arm parallel to the travel of the second damper such that the movements of the cable that are transverse to the travel of the second damper are transmitted to the arm independently of the second damper.

Device for damping vibrations in a cable

The damping device comprises an interconnecting structure between cables of a group of at least three cables of the suspension system which extend substantially in one and the same suspension plane P. The interconnecting structure has, outside the plane P, at least one bearing point for an energy dissipating element arranged so as to develop a damping force in response to a movement of one of the cables of the group relative to the other cables of the group in a direction perpendicular to the suspension plane.

Device for damping vibrations in cables of a suspension system of a civil engineering structure

The method is for protecting the end of a cable made of a plurality of parallel tendons () anchored using a block () having a front side, a rear side and channels () extending between the front and rear sides. Each tendon of the cable is held in a respective channel of the anchor block with a blocking member (). The method comprises performing a first phase of injecting protective material () into at least some of the channels of the anchor block. A chamber () is formed on at least one side of the anchor block () so as to contain portions of the plurality of tendons. A second phase of injecting protective material () into the chamber () is then performed.

Method of protecting the end of a multi-tendon cable

A seal for sealing a cable anchor device () to a structural element (), the cable anchor device () being arranged to anchor at least one cable () to the structural element () and having a front surface () facing an opening () of the structural element, through which front surface the at least one cable () extends towards the exterior of the structural element, characterized in that the seal comprises a sleeve () which extends from a perimeter of a surface of the structural element including the opening () of the structural element to a perimeter of a hermetic portion of the anchored cable () comprising at least the front surface () of the anchor device ().

Seal for cable anchor device of a cable construction

A strand () comprising a group of twisted threads () and arranged so as to have, over a first part () of its length: a sheath () containing the group of twisted threads, and a flexible filling product () filling a peripheral interstice () located between the inner face of the sheath and the periphery of the group of twisted threads, and, over a second part () of its length, which is separate from the first part: a material () covering the periphery of the group of twisted threads, said material adhering to the twisted threads of the group.

Strand, structural cable and method for manufacturing the strand

The invention relates to a method for determining the fatigue capital of a cable supporting a civil engineering structure, the method including: a measuring step (S, S) during which the normal tensile stress in the cable and the bending stress in the cable are measured in a synchronized manner so as to obtain the compound stress in the cable; a counting step (S) during which a count of the number of stress cycles, depending on the amplitude of the stress, is carried out from the measured compound stresses; and a step (S) of assessing the fatigue capital of the cable during which the fatigue capital of the cable is determined by comparing the count, carried out in the counting step, with a pre-set Wohler curve for the cable.

Method for determining the fatigue capital of a cable

The structural cable has several stretched tendons (). It is diverted in a device comprising a body crossed by conduits (). Each conduit has a wall to guide one of the tendons along a curved path. The wall of the conduit has a tendon support area () directed toward the interior of the curve of the path. This support area presents, in the center portion of the conduit and transverse to the curved path, a section in the shape of a circular arc whose radius is appreciably equal to half the external diameter of the tendon. The central portion of the conduit has a cross-section enlarged outside the support area.

Device for diverting a structural cable such as a stay and a structure so equipped

The anchoring device for a cable made of plurality of tendons comprises an anchor block having a front side, a rear side and channels extending between the front and rear sides, each tendon of the cable being received in a respective channel with a blocking member. It also comprises a first protective material with which at least some of the channels of the anchor block are filled, a chamber containing portions of the plurality of tendons of the cable, located on at least one of the front and rear sides of the anchor block, and a second protective material, different from the first protective material, with which the chamber is filled.

Anchoring device for a multi-tendon cable

Process for reinforcing a construction structure where, laid on one portion of said structure, is at least one portion of a reinforcement () of elongated shape comprising continuous fibers in the longitudinal direction of said reinforcement, which are combined with a polymer matrix, wherein said process comprises a step of removing the polymer matrix in one portion () of the reinforcement so as to release the fibers of the reinforcement in order to allow their rearrangement following their release from the polymer matrix. It is thus possible to optimize the binding configuration of the reinforcement with a portion of the structure to be reinforced.

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Versailles, France

Erik Mellier