• 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:
    The invention relates to a construction element (1) in concrete comprising an upper surface (2) and a lower surface (3) and two end surfaces (4a, 4b) and at least one reinforcing tensioning member (5) stretching between the end surfaces (4a, 4b). The invention is characterized in that the tensioning member (5) is enclosed by a pipe (6) which is embedded into the concrete and wherein the at least one tensioning member (5) have a length (I1) longer than the pipe (I2) and is arranged moveable in relation to the pipe (6) and is arranged to stay moveable in relation to the pipe (6). The invention also relates to method to manufacture such a construction element (1).
    公开号:SE1250653A1
    申请号:SE1250653
    申请日:2012-06-19
    公开日:2013-12-20
    发明作者:Markus Andersson；Martin Persson
    申请人:Btng Projekt Ab；
    IPC主号:
    专利说明:

    [6] The perforated casting giuts on a casting shed that is between ó0-100 meters long, the reinforcement placed at the bottom of the casting mass dies and is prestressed with a certain force. When the casting mass has been heard, the prestressed reinforcement is embedded in the material. After casting, the elements are sawn to the desired dimensions.
    [7] The technique of using prestressed reinforcement in the manufacture of hollow core tires is old and well-proven and requires large fleets of machines for finishing in order for the product to suit the end customer. Furthermore, casting comprising prestressed reinforcement requires high quality concrete because it needs to be heard quickly to a certain strength value before the elements can be lifted out and cut up. Pick-up takes place as a representative already the day after casting. If the concrete has not reached the desired strength, the reinforcement will be able to sprout from the concrete.
    [8] Unfortunately, concrete is one of the building materials that is least beneficial to chickens' CO2 emissions. Today's technology with high quality values means that C02 emissions are very high. By using recycled material or a concrete of lower quality, it will be possible to reduce C02 emissions. This is not possible today with technology that uses prestressed reinforcement and with a fixed production plant. This means that materials and resource management suffer and are thus not good from an environmental point of view.
    [9] There are a number of patents and patent applications for perforated tires and the manufacture of perforated tires. See, for example, WO0121249A2 and USS] 14617 which show perforated decks comprising prestressed reinforcements arranged in the upper and / or lower edge of the perforated deck. Attempts have been made to solve the above problems by adding different types of materials to reinforce the concrete.
    [12] The invention thus relates to a building element in concrete comprising an upper surface and a lower surface as well as two end surfaces and at least one reinforcing clamping member extending between the end surfaces. The invention is characterized in that the clamping means is enclosed by a pipe which is cast in the concrete and the clamping means dies are arranged movably in relation to the pipe.
    [13] Because the clamping member is arranged movably in relation to the cast-in pipe, it is possible to cast a clamping member which is not in the clamp but is slaughtered arranged in the casting mass. In order to increase the strength, the clamping member can instead be retightened when the building element has been completed. The concrete used in a post-tensioned building element can be of a significantly lower strength as the tensioning member is not prestressed before casting. Since the clamping member is slack in the concrete mass, the risk of splashing is also minimized.
    [15] By arranging the pipe and the clamping means the pipe encloses at the lower edge of the building element, a dead clamping means is created, a pretension is created in the building element and a certain upward bending of the element which partly counteracts the deflection which otherwise occurs due to the deck plasticization due to its own weight.
    [16] According to a second embodiment of the invention, the tube also has a middle part arranged between the first and second ends of the tube. This middle part is arranged closer to the lower surface of the building element than the first and second ends of the pipe so that the pipe assumes a gay shape.
    [17] By casting in the pipe so that the seed initially has a gay shape, the tensile forces of the clamping member work directly against the torque forces. This means that the clamping member is optimally mounted with respect to the deflection of the beam.
    [18] In a further embodiment, the first and second ends of the pipe are arranged in the vicinity of the upper surface of the building element and the middle part of the pipe is arranged near the lower surface of the building element.
    [19] By utilizing most of the height of the building element, the pipe dies and clamping means are mounted, additional torque forces can be counteracted and the building element can be made longer if desired.
    [20] In another embodiment, the clamping means is fixedly clamped in the first end surface of the building element and arranged loosely in the pipe at the second end surface of the building element.
    [21] By having a clamping member probe loose and a fixed clamp, the post-tensioning of the clamping member is facilitated because tensile forces only need to be added at one end of the clamping member.
    [22] In a further embodiment, the clamping means is arranged at least partially projecting through at least one of the first and second ends of the tube.
    [23] If the clamping member protrudes a bit from the ends of the pipe, and thus also from the ends of the base element, it is later facilitated by the ends of the ends, since it becomes easier to get a grip with the tool used.
    [24] In another embodiment, the clamping means is a reinforcement consisting of a rod or wire. The clamping member can also be made of metal or composite material.
    [25] By using a rod or wire in metal as clamping means, the construction becomes pourable and is easy to retighten and read in a tensioned state. If the reinforcement is made of a composite material, for example carbon fiber or fiberglass, the construction becomes lighter and more moisture-resistant because these materials do not rust.
    [26] In a further embodiment, building elements comprise at least one continuous channel which extends between the end surfaces of the building element substantially parallel to the upper and lower surface of the building element.
    [27] By arranging channels in the building element, the weight of the element decreases and it is also possible to use the channels for cabling and the like. A heel deck was then created.
    [28] The invention also relates to a method of manufacturing a building element according to any one of the preceding claims, characterized in that it comprises the steps of: attaching both ends of a pipe, which encloses a clamping member movable in relation to the pipe, in a mold, supplying casting mass in the mold , remove the building element after curing.
    [29] By the above method, a building element is created comprising a clamping member which is possible to retighten when it has hardened. It is then also possible for concrete to be poured over a lower strength barrier, optimally mounted mounting red reinforcement and a technology that makes it possible to remove the production support as needed at the same time as the mounting bracket is separate. This means that the technology means that significantly less resources are required in the desired language. This makes a lot of money for environmental benefits in the form of smaller cement volumes ti | production, short-haul transport routes sewn an optimized red production that meets the requirements of the dark distress on a modern construction emergency element.
    [30] In one embodiment, the method above the step ött ti | se ött tube | öngd ör | öngre ön giutformens | öngd sö ött tube hangs in a gay form in giutformen.
    [31] Through a wet assembly island into a pipe which is longer than the casting and which hangs in a gay form, the clamping element becomes so island-like that it dies in the trailing force against the torque force and counteracts the deflection of the building element. This also makes the wet element better retain its shape.
    [32] In an island embodiment, the method includes the step over step with a tool post-tensioning the tension member with a pulling force.
    [33] Retightening over the clamping member increases its durability and reduces its deflection.
    [34] A | ö unobtrusive embodiments e | er delör over an embodiment sex combinable free so long the combination is not contradictory.
    [35] The invention will now be described, as an example, with reference to the invention attached drawing, pö vi | kö:
    [36] Fig. 1 shows a side view of a blunted embodiment of the building emergency element according to the invention,
    [37] Fig. 1b shows an end view of a first embodiment of the building element according to the invention,
    [38] Fig. 2a shows a side view of a second embodiment of the building element according to the invention,
    [39] Fig. 2b shows an end view of a second embodiment of the building element according to the invention,
    [40] Fig. 2c shows a sectional view taken in section A-A in Fig. 2a of a second embodiment of the building element according to the invention, Fig. 3 shows a third embodiment of the building element according to the invention,
    [42] Fig. 4 shows a sketch of how the forces are absorbed in the building element according to the invention.
    [43] Fig. 5 shows the building element during its manufacture.
    [44] In the following comes a detailed description of embodiments of the building element according to the invention. All examples should be considered as parts of the general description and are therefore generally possible to combine.
    [45] Figures 1a and 1b show a building element 1 in concrete in which at least one substantially straight pipe ó is enclosed, which encloses a clamping member 5.
    [46] The tube ó has a first and a second spirit óa, ób and a middle part óc arranged between the spirits. The pipe ó extends between the two end faces 4a, 4b of the building element and its first and second ends óa, ób is preferably in line with the end faces 4a, 4b so that the hollow space of the tube extends through the entire building element l. In this embodiment the lengths of the tubes are substantially the same length as the length L. of the building element 1 The clamping member 5 protrudes in a distance from the end surfaces 4a, 4b and is thus possible to grip from both sides of the building element 1 and retighten with a force F. The clamping member 5 is also movable in relation to the pipe ó which it is possible to retighten.
    [47] The pipes ó and the clamping means 5 are arranged in a substantially straight line next to each other in the lower edge of the building element, i.e. closer to the lower surface 3 of the building element. However, it is also possible to displace the pipes ó and the clamping means 5 in relation to each other in the height element H .
    [48] Figures 2a-2c show a second embodiment of the building element where the pipes δ and the clamping means 5 are arranged in a baking mold in the building element 1. Thus, the middle part of the pipes and arranged closer to the lower surface 3 of the building element than the first and second ends of the pipes óa, ób. It is also the case that the first and second ends of the pipes ó are arranged near the upper surface 2 of the building element and the middle part of the pipes are arranged near the lower surface 3 of the building element.
    [49] The length of the pipes extends longer than the length L. of the building element. The clamping member 5 is fixedly clamped in the first end face 4a of one building element and arranged loosely lying in the pipe at the second end face 4b of the building element.
    [50] Figure 2b shows a view of the end surface 4b of the building element and clarifies that the pipes δ and the clamping member 5 protrude from the end surface at the upper surface 2 of the building element.
    [51] In the spirit 4a of the building element where the clamping member 5 is fixedly clamped, the clamping member 5 may itself be cast or otherwise sweetly attached to the concrete in its upper part. This is not shown in any figure but can of course also be applied in the embodiment shown in figures 1a and 1b.
    [52] Figure 2c shows a sectional view through the section A-A in figure 2a. It has been clarified that the middle part of the pipes and arranged closer to the lower surface 3 of the building element.
    [53] Figure 3 shows an embodiment in the form of a hollow channel 7 channels running through the building element 1. Between the channels 7 the pipes δ and the clamping means are arranged.
    [54] Figure 4 shows a pouring mold M in which a pouring mass C of concrete is about to be supplied. In the lvl edges of the mold both the spirits óo, ób of at least one tube ó are attached. The tubes ó enclose a clamping member movable and untensioned in relation to the tube 5.
    [55] The clamping means 5 can have a length even longer than the tubes ó so that they at least partially protrude through the edge of the mold M or so that they protrude at least a bit in the edge of the mold. In such a case, only the pipes δ and not the clamping member 5 are fixed in the concrete as the building element hardens so that the clamping member remains movable in relation to the pipes.
    [56] When the building element is fully hardened, the clamping member 6 is retightened with a required traction force F. The retightening takes place with a suitable tool, for example a jack. The chip member can be retightened at the construction site or at an intermediate warehouse.
    [57] The casting mass C used may be recycled or have a lower quality because the chip members ó are arranged slack in the casting mass C when it hardens and thus does not cause any stress on the concrete. Since this method also allows casting on site of separate individual elements, the curing time is also not of a concern for the choice of concrete quality. 9 9
    [58] With this method, all elements die can be manufactured separately, it is also possible to custom manufacture the elements so that some comprise channels 7 and some comprise other cavities or when the elements have a different shape.
    权利要求:
    Claims (13)
    [1]
    1. 1 PATE NTKRAV 1. Building elements (1) in concrete comprising an upper surface (2) and a lower surface (3) and two end surfaces (4a, Åb) and at least one reinforcing tensioning member extending between the end surfaces (4a, Ab) ( 5) characterized in that the at least one clamping member (5) is enclosed by a pipe (ó) which is cast in the concrete and where the at least one clamping member (5) is arranged movably in relation to the pipe
    [2]
    Building element (1) according to claim 1, wherein the pipe (ó) has a first and a second spirit (óa, ób) which are arranged so that they coincide with the two end faces (Aa, Åb) of the building element (l).
    [3]
    Building element (1) according to claim 1 or 2, wherein the pipe (ó) is substantially straight and arranged closer to the lower surface (3) of the building element than its upper surface.
    [4]
    Building element (1) according to claim 1 or 2, wherein the pipe (ó) also has a central part (óc) arranged between the first and second ends of the pipe (óa, ób) and wherein this central part (óc) is arranged closer to the lower surface (öc) of the building element. 3) the first and second spirit of the tube (óa, ób) said that the tube (ó) has assumed a bag shape.
    [5]
    Building element (1) according to claim 4, wherein the first and second ends (óa, ób) of the pipe (ó) are arranged near the upper surface (2) of the building element and the middle part (óc) of the pipe are arranged near the lower surface ó of the building element.
    [6]
    Building element (1) according to one of the preceding claims, wherein the at least one clamping member (5) is fixedly clamped in the first end face (4a) of one building element and arranged loosely in the pipe at the second end face (Åb) of the building element.
    [7]
    Building element (1) according to one of the preceding claims, wherein the clamping member (5) is arranged at least partially projecting through at least one of the first and second end faces (óa, ób) of the pipe. 12
    [8]
    Building element (1) according to one of the preceding claims, in which the clamping member (5) is a reinforcement consisting of a rod or wire.
    [9]
    Building element (1) according to claim ó, wherein the clamping member (5) is made of metal or composite material.
    [10]
    10. lO. Building element (1) according to one of the preceding claims, if the building element (1) comprises at least one continuous channel (7) which extends between the end surfaces (4a, Åb) of the building element (1) substantially parallel to the upper and lower surface (2) of the building element (1). , 3).
    [11]
    11. l l. Method of manufacturing a building element (1) according to one of the preceding claims, characterized in that it comprises the steps of: Attaching both ends (óa, ób) of a pipe (ó), which encloses a chip member movable and unspaned relative to the pipe (5). ), in a casting mold 0 Apply casting compound (C) in the casting mold (M) 0 Remove the building element (l) after hardening.
    [12]
    l2. Method according to claim 9, which also comprises the step of: Ensuring that the length (l) of the tube (l) is longer than the length (L) of the mold so that the tube (ó) hangs in an arcuate shape in the mold
    [13]
    l3. Method according to claim 11 or 12, which further comprises the step of: Using a tool, the clamping member (5) is machined with a pulling force (F).
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    同族专利:
    公开号 | 公开日
    EP2861805A1|2015-04-22|
    WO2013191615A1|2013-12-27|
    EP2861805A4|2016-01-20|
    SE536597C2|2014-03-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB935557A|1959-01-26|1963-08-28|Jack Vernon Welborn|Improvements in or relating to stressing concrete|
    US3422586A|1966-05-12|1969-01-21|Domenico Parma|System for post-stressing concrete slabs,beams or other structures|
    AT279124B|1968-05-07|1970-02-25|Holzmann Philipp Ag|Process and duct for the production of prestressed concrete components|
    US3579931A|1969-09-18|1971-05-25|Du Pont|Method for post-tensioning tendons|
    ZA72312B|1971-01-21|1972-10-25|Shakespeare Co|Method and apparatus for prestressing concrete structural members and members made thereby|
    US4306395A|1978-06-01|1981-12-22|Carpenter Orval R|Lightweight cementitious product and method for making same|
    CA2279527A1|1997-12-05|1999-06-17|Youji Yanagi|Prestressed concrete structure, reinforcing member used for prestressed concrete moldings, and sheet material for reinforcing members|
    ITMI20022119A1|2002-10-04|2004-04-05|Benito Zambelli|DEVICE FOR THE CONNECTION OF A BEAM TO PILLARS,|
    US8297026B1|2009-07-21|2012-10-30|Bracegirdle P E|Construction system and method having integrated plank and framing members|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1250653A|SE536597C2|2012-06-19|2012-06-19|Building elements in concrete and method of making such a building element|SE1250653A| SE536597C2|2012-06-19|2012-06-19|Building elements in concrete and method of making such a building element|
    EP13806191.6A| EP2861805A4|2012-06-19|2013-06-11|Construction element and method to manufacture such a construction element|
    PCT/SE2013/050666| WO2013191615A1|2012-06-19|2013-06-11|Construction element and method to manufacture such a construction element|
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