• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Construction system for wind towers. The system of the invention has a plurality of improvements compared to conventional systems for the construction of wind towers based on sections of reinforced concrete, in order to reduce significantly the manufacturing costs. Among them, it is worth highlighting the obtaining of a broken profile from truncated-conical sections that resembles as much as possible the ideal curved profile provided for the tower, as well as the use of adherent prestressing cables that are tensioned in the factory before placing the rebar, and tendons that run through the interior of the voussoirs, which make it possible to relate several voussoirs to each other, the reduction in the thickness of the voussoirs together with the arrangement of the ferralla in a single layer, as well as other improvements that are described throughout of the present invention. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2545038A1
    申请号:ES201430312
    申请日:2014-03-07
    公开日:2015-09-07
    发明作者:José Emilio Jimeno Chueca；José Luis LLEYDA DIONIS；José Salustiano SERNA GARCÍA-CONDE
    申请人:INNEO TORRES SL；
    IPC主号:
    专利说明:

    CONSTRUCTION SYSTEM FOR WIND TOWERS

    D E S C R I P C I Ó N

    OBJECT OF THE INVENTION 5

    The present invention relates to a construction system for wind towers, of the type constituted from segments obtained in concrete.

    The object of the invention is to provide a simple structuring of the elements that participate in the tower, so that greater simplicity is obtained in the execution of the molds and the geometry of the manufactured segments, reducing the control times and their cost, also achieving greater precision in the manufacture of these elements.

    It is also the object of the invention to reduce the overall thickness of the segments, and consequently the volume of concrete necessary to obtain them, with the consequent cost savings and greater ease of assembly due to their lower weight.

    Likewise, it is also the object of the invention to reduce the need for ferrallist labor and the installation times of said ferralla. twenty

    These and other advantages that derive from the new structuring will be seen throughout this report.
    BACKGROUND OF THE INVENTION 25

    In the field of practical application of the invention, that of wind towers obtained on the basis of segments made of concrete, the tower itself is obtained from a plurality of modules that are arranged vertically, obtained from the union of two or more segments, so that the profile of the tower is not straight, but has about 30 radii of curvature of the order of 1000 to 5000m radius.

    This is a huge complexity in terms of obtaining the molds of the segments that participate in the tower, which translates into an exhaustive control and some
    extremely high manufacturing costs.

    Although towers are also known whose profile is completely straight, with a certain inclination, the reality is that, this type of towers are only suitable for small heights, since, when a certain height is exceeded, the width of the tower at the lower level must be 5 vastly greater than its width at higher levels, non-linearly.

    To this problem, we must add the relative to the structural complexity of this type of construction systems as regards the joints between modules and segments, the high thicknesses used and the use of double layers of ferralla, as well as the testing of 10 the different pieces, all of which translates into significant costs, which would be desirable to minimize.
    DESCRIPTION OF THE INVENTION
     fifteen
    The construction system for wind towers that the invention proposes solves in a fully satisfactory way the problem previously exposed, thanks to a simple solution but of great efficiency.

    More specifically, it is envisaged that the vertical modules into which the tower is divided, 20 obtained through the use of two or more segments, are obtained from conical trunk sections of straight directrix.

    These modules will have a straight profile, although their inclination will be different, contrary to what happens in the straight profile towers, so that the final profile 25 obtained while not curved, adapts to the curve “ ideal ”from different sections of different inclinations, so that, since the ideal radii of curvature are of the order of 1000 to 5000 meters, the tower obtained has virtually no visual or structural impact with respect to the“ ideal ”profile, keeping the amounts of armor.
     30
    However, this structural simplification drastically reduces manufacturing costs by requiring much simpler molds, reducing control times and costs, with greater precision in the manufacture of the segments.

    In accordance with another of the features of the invention, it is provided that in substitution of the classic fixing means in the horizontal joints between segments, in which prestressed bolts and passive bars participated, the segments are vertically related to each other from cable tendons, which run vertically through the inside of the segments, and are passed through respective holes made in respective prominent elements 5 of the edges defined in the joint, so that the same tendon of a segment is related by one of its ends with the immediately superior dovela, and at the other end with the immediately inferior dovela.
     These elements collaborate in resisting the operating efforts in service of the 10 tower assembly, so that it is not adherent elements, but is sheathed with a lining and tested in the park after the assembly of the tower sections .

    Similar structuring has been foreseen when fixing the tower to the foundation so that in replacement of the classic passive bars and protruding bolts protruding from the shoe that were anchored to the lower end of the dovela at the base of the tower, has provided that cable tendons emerge from the shoe itself, which are passed through vertical conduits at the lower end of the segments of the 1st section until they are connected with tendons of these segments, being tested above the horizontal joint between the first and second 20 stretch.

    In this way, the tendons have a sufficiently wide length so that the elongation, when tested, is large enough so that the losses that occur in the anchorage of the wedges, when removing the jacks, do not excessively decrease the elongation of the tesado and So much tendon tension.

    According to another of the characteristics of the invention, it is planned to reduce the overall thickness of the segments, thus reducing the weight, which facilitates the assembly of the sections in the wind farm, especially in high-rise towers. 30

    For this, it is planned that the ferralla is arranged in a single layer, instead of in the two conventional layers.

    In parallel, the use of prestressed reinforcements is planned as part of the reinforcement 35
    active, so that in addition to the tendons that run through the inside of the segments, adherent cords are arranged that are tensioned at the factory before placing the general ferrule of the segment in the mold, before concreting it.

    These cords collaborate with the general armor of the dovela to resist the operating efforts 5 in service of the tower, additionally having two functions; on the one hand, to resist the efforts of the dovela in the operations of manipulation of the same, demoulding, stockpiling, transport and pre-assembly, and in parallel to serve as support and fixation of the iron grills on most of the surface of the dovela, removing part of the elements of separation of the ferralla and keeping the concrete coatings 10 provided.

    The special configuration of the arrangement of the ferralla in a single layer, together with the fixation by means of a layer of prestressed reinforcements, can reduce the need for ferrallists' labor and the times of placement of the ferralla. fifteen

    According to another of the features of the invention, the inclusion of lifting and handling anchors has been provided in the thickened areas of the base and the head of the slider, so that, by reducing the overall thickness of the slider, It is necessary to supplement the thickness locally to place the corresponding anchors. twenty

    In this way, the excess thickness at the ends allows the handling anchors to be loosely positioned, even decreasing their number from 4 to 2 units at each end.

    Finally, it should be noted that, optionally, the boxes defined in the horizontal joint joints to accommodate the active and passive testing ends of the tendons can be eliminated, modifying the geometry of said ends of the segments. which is a simplification in the manufacture of the same facilitating the work of testing in the wind farm.
     30 DESCRIPTION OF THE DRAWINGS

    To complement the description that is going to be made below and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization thereof, it is accompanied as an integral part of said invention.
    description, a set of drawings where, for illustrative and non-limiting purposes, the following has been represented:


    Figure 1 shows a profile view of a wind tower, whose scale has been deformed 5 vertically to be able to more easily notice the theoretical profile of the tower and its real profile.

    Figure 2.- Shows a schematic perspective view of a section consisting of several segments. 10

    Figure 3.- Shows a detail in vertical section of the joint profile between segments, corresponding to a first variant embodiment in which boxes are defined to accommodate the active and passive testing ends of the tendons.
     fifteen
    Figure 4 shows a view similar to that of Figure 3, but corresponding to a variant embodiment in which the boxes are removed to accommodate the active and passive testing ends of the tendons.

    Figures 5 and 6. - They show two details in sequential section of the means for fixing the lower key to the shoe.

    Figure 7.- Finally, it shows a detail in section according to a horizontal cutting plane of a dovela, in order to be able to visualize the armor that participates in it.
     25 PREFERRED EMBODIMENT OF THE INVENTION

    As can be seen in the aforementioned figures, and especially in figures 1 and 2, the tower (1) of the invention is constituted from a series of vertical sections (2) obtained in turn from two or more segments (4), so that, in front of the ideal curved theoretical profile (3), which 30 by calculations should present the tower, it is foreseen that said profile is obtained from straight segments (13), for which the sections Verticals that participate in the tower have a cone-shaped trunk configuration of a straight guideline.

    Consequently, the different sections of the tower will have a straight profile, although their inclination will be different, contrary to what happens in conventional straight profile towers.

    As can be seen in Figures 3 and 4, and in accordance with another of the 5 characteristics of the invention, it is provided that in substitution of the classic fixing means in the horizontal joints between segments, the segments are vertically related from each other from cable tendons (5), which run vertically through the interior of the segments emerging at both ends in a perfectly vertical position to allow in the assembly process their introduction through respective holes (6) made in 10 prominent prominent elements (7) of the edges that are defined in the horizontal joint of the segments (4), so that the same tendon (5) of a segment is related at one end to the immediately superior segment, and at the other end with the keyway immediately below, by means of the corresponding active anchors (8), and passive (8 ').
     15 The tendons (5), as previously mentioned, are sheathed with a lining and are tested in the park after the assembly of the tower sections.

    In accordance with Figures 5 and 6, when fixing the tower to the foundation or footing (9), it is foreseen that the same vertical tendons (5 '') emerge from it, which by means of 20 joints (10) fixed to tendons (5) of the segments that will form the first tower section, which incorporate longitudinal holes (11) through which these tendons are passed, testing above the horizontal joint between the first and the second section, so that the tendons have a sufficiently wide length so that the elongation when tying them, is large enough so that the losses that occur in the anchorage of the wedges, when removing the jacks, do not excessively decrease the elongation of the tesado and therefore the tension of the tendon.

    As for the thickness of the segments (4), it is expected that it will be reduced, thus reducing the weight, which facilitates the assembly of the sections in the wind farm, especially in high-rise towers.

    To do this, and as seen in Figure 7, it is provided that the rail (12) is arranged in a single layer, rather than in the two conventional layers.
     35
    More specifically, the use of prestressed reinforcements is planned as part of the active reinforcement, so that in addition to the tendons (5) that run inside the segments, the adherent cords or tendons (5 ') are arranged which are tensioned at the factory before placing the general ferrule of the dovela in the mold, before concreting it. 5

    These cords or tendons (5 ’), as previously mentioned, collaborate with the general armor of the dovela to resist the operating efforts in service of the tower, additionally having two functions; on the one hand, to resist the efforts of the dovela in the operations of manipulation of the same, demoulding, stockpiling, transport and 10 pre-assembly, and at the same time to serve as support and fixation of the ferrule grills in most of the surface of the dovela , eliminating part of the elements of separation of the ferralla and maintaining the planned concrete coverings.

    The reduction of thickness mentioned above makes it necessary to move the lifting and handling anchors 15 to the areas of the base and the head of the segment (4), corresponding to the prominent sectors of greater thickness (7). Said excess thickness allows to easily position the anchors, even decreasing their number from 4 to 2 units.

    Finally, and again according to figures 3 and 4, the prominent elements (7) 20 in which the active (8) and passive (8 ') anchors of the tendons (5) are established, and specifically the surface where They fix said anchors, it can constitute a smooth surface of revolution, which extends circumferentially, as shown in Figure 4, or be established punched or recessed pockets, radially distributed, as in the example of Figure 3. 25
    权利要求:
    Claims (1)
    [1]
    R E I V I N D I C A C I O N E S
    1st.- Construction system for wind towers, of the type constituted from a series of vertical sections (2) of reinforced concrete, obtained by joining two or more segments (4), characterized in that the different sections (2) that participate in tower 5 have a trunk-conical configuration of a straight guideline, of different inclination for each section, so that a broken profile is obtained as close to the theoretical and optimal curved profile provided for the tower.
    2nd.- Construction system for wind towers, according to claim 1, characterized in that 10 the segments (4) that participate in the sections (2) in which the tower is divided are vertically related to each other from cable tendons (5) , which run vertically through the interior of the segments, emerge at both ends in a perfectly vertical position, and pass through respective holes (6) made in respective prominent elements (7) of the edges defined in the horizontal joint of the Dovelas (4), so that the same tendon (5) of a dovela is related by one of its ends with the immediately superior dovela, and on the other end with the immediately inferior dovela.
    3.- Construction system for wind towers, according to claim 2, characterized in that the tendons (5) are sheathed with a non-stick coating.
    4th.- Construction system for wind towers, according to claims 1 to 3, characterized in that for fixing the tower to the shoe, it is foreseen that from the shoe (9) respective tendons (5 '') emerge, which through splices ( 10) they are fixed to the tendons (5) of the 25 segments that will form the first section of the tower, which incorporate longitudinal holes (11) through which these tendons are passed, being tested above the horizontal joint between the first and the second section of the tower.
    5th.- Construction system for wind towers, according to claim 1, characterized in that the segments have a smaller thickness than the conventional one, so that the ferrule (12) is arranged in a single layer.
    6th.- Construction system for wind towers, according to claim 2 and 5, characterized in that the segments (4) include prestressed reinforcements as part of the active reinforcement, 35
    so that in addition to the tendons (5) that run through the inside of the segments, the adherent cords or tendons (5 ') are arranged that are tensioned at the factory before placing the general ferrule of the dovela in the mold, prior to concreting Of the same.
    7.- Construction system for wind towers, according to claim 5, characterized in that the areas of the base and the head of the dovela corresponding to the prominent sectors (7) have an excess thickness, on which the lifting and handling anchors are established and the active (8) and passive (8 ') anchors of the tendons (5).
    8.- Construction system for wind towers, according to claim 2, characterized in that the active (8) and passive (8 ’) anchors of the tendons (5) are arranged on a smooth surface of revolution that extends circumferentially.
    9.- Construction system for wind towers, according to claim 2, characterized in that the active (8) and passive (8 ') anchors of the tendons (5), are arranged in a series of 15 boxes (14) or punched, radially recessed distributed.
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    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    法律状态:
    2016-04-26| FG2A| Definitive protection|Ref document number: 2545038 Country of ref document: ES Kind code of ref document: B1 Effective date: 20160426 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201430312A|ES2545038B1|2014-03-07|2014-03-07|Construction system for wind towers|ES201430312A| ES2545038B1|2014-03-07|2014-03-07|Construction system for wind towers|
    EP15758970.6A| EP3118453A4|2014-03-07|2015-03-04|Wind towers construction system|
    US15/124,243| US20170016242A1|2014-03-07|2015-03-04|Wind towers construction system|
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    CN201580023129.7A| CN106460797A|2014-03-07|2015-03-04|Wind towers construction system|
    PCT/ES2015/070156| WO2015132438A1|2014-03-07|2015-03-04|Wind towers construction system|
    MX2016011518A| MX2016011518A|2014-03-07|2015-03-04|Wind towers construction system.|
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