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1. (WO1990008059) FLOATING MODULATE CONCRETE PLATFORM
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REPORT DESCRIPTIVE OF PATENT INVENTION " FLOATING MODULATE CONCRETE PLATFORM "

The present invention refered about a rein-forced concrete platform, constitutive by several modules in association, that after joined among thenselves, will be create a plane surface, that would be used by platform oil exploration, base to extraction of minerals in depht sea, naval base, airport, etc..

It intend basicaly, to show how can conceived and builted a concret platform, like a artificial floating island, which utilities and aplications, will depend it economical viability. It consider, soon or later, there will be necessity explored marines riches, this invention is a possible alternative, that in brasilian case off shore exploration oil could be utilized to depht water, greater than 500 meters.

The platform construction will be made by hexagonal modules width stiffiness walls between opposite vertex. The modules will be constructed at the coast and transported to point where it wish to have the platform location.

It understand by stiffines walls between oposite vertex, vertical walls that crossing all module were conected at it center.

The figure 1 shows an horizontal cross section where can see the walls st iff iness between oposite vertex.

The figure 2 shows the vertical croos section in hexagonal module.

While some modules were constructed and transported to final position on the sea, they were going conected by prestressed tie-beans, in order to, soon after tensioned to confer whole the stiffiness necessary.

The figure 3 shows the module being transported.

The modules conection by prestressed tie-beans will be localized at edge enlargement space and internal stiffiness walls.

The figure 4 shows detail of prestressed tie-beans conection between modules.

Afterwards it has so great wish or necessary the modules will be partially filled with water sea, so as to increase the platform greatest inertia, and so that, most economical.

The figure 5 shows the horizontal cross section platform.

The figure 6 shows a platform assembled by several modules.

Finaly will be instaled anchors that will be fix the platform in it work place.

Observe that the anchors instalation is to help the platform fixation. Because the water sea in the platform is to increase the inertia, in this manner, to dificult the efects of waves displacements.

The anchors for platform will be concrete reinforced blocks will be arrested at platform by cables.

The figure 7 shows the cross section where can see the fixation cables and the block to anchors.

There were many kinds platforms, some suported in bed sea, other were floating, also there are the floating platform fixed by cables. There are several platforms formed by assembly small modules too.

The new in this platform conception, is that, it is not fixed only by cables. How the platform can increase how much we want, it almost immobility will be reached by big mass obtained with filling up water sea.

Another new characterist is the hexagonal modules conception with stiffinees walls between oposite vertex. When they will be conected by prestressed, they were formed a set of beans crossing depht sea. The platforms suported by bed sea are limited by profundity, in tension leg platforms the tie-beans are tensioned to keep the platform in operation place, none takes it weight own to help in the fixedness, leaving for cables and anchors a small drag force because wave efects. How they are small a feel cables will be necessary.