Wood-concrete composite floor element and wood-concrete composite floor

Abstract

Wood-concrete composite ceiling element (10, 10a, 200, 202) with a wooden substructure (12, 12a) comprising a plurality of beams (14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 14a, 16a, 18a, 22a, 24a, 28a, 30a) and a reinforced concrete slab (34, 34a) arranged on the wooden substructure (12, 12a) and connected thereto, characterized in that on at least one side of the wood-concrete composite ceiling element (10, 10a, 200, 202) at least one first beam section (36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 36a, 38a, 40a, 44a, 46a, 48a, 204, 206, 208) projects laterally beyond the reinforced concrete slab (34, 34a).

Description

[0001] The invention relates to a wood-concrete composite floor element comprising a wooden substructure comprising several beams and a reinforced concrete slab arranged on and connected to the wooden substructure. Furthermore, the invention relates to a wood-concrete composite floor comprising several wood-concrete composite floor elements according to the invention.

[0002] In prefabricated house construction, it is common practice to first construct a basement and then provide a ceiling constructed from several wood-concrete composite ceiling elements at the top of the basement. The wood-concrete composite ceiling elements usually completely cover the load-bearing walls of the basement. When wall elements are subsequently placed on top of this wood-concrete composite ceiling, it is no longer immediately apparent where the load-bearing walls are located below the wood-concrete composite ceiling. Furthermore, attaching the wall elements, and especially connecting them to the load-bearing wall sections of the basement, can prove difficult.

[0003] The object of the present invention is therefore to provide a wood-concrete composite ceiling element with which the above-mentioned disadvantages can be eliminated.

[0004] This object is achieved according to the invention by a wood-concrete composite floor element with a wooden substructure comprising several beams and a reinforced concrete slab arranged on and connected to the wooden substructure, wherein at least one first beam section projects laterally beyond the reinforced concrete slab on at least one side of the wood-concrete composite floor element. Preferably, several first beam sections project laterally beyond the reinforced concrete slab on at least one side. Such a wood-concrete composite floor element can be placed with the first beam sections on a load-bearing wall, for example of a basement. A load-bearing beam can then be placed on the first beam sections. This beam remains visible, so that a wall element can be easily positioned on the load-bearing beam. An exact positioning of the wall element on the load-bearing beam is not required.However, the load is transferred to the load-bearing wall below via the load transfer beam and the first beam sections.

[0005] In this context, the load-bearing beam can be constructed as a wooden beam. Alternatively, it can be made of concrete, in particular including steel reinforcement.

[0006] The first beam section can be reduced in height compared to a second beam section located beneath the reinforced concrete slab. This creates a recess into which the load-bearing beam can be inserted. The height reduction of the first beam section can be dimensioned such that the sum of the height reduction and the thickness of the reinforced concrete slab corresponds to the height of the load-bearing beam. The load-bearing beam is thus flush with the reinforced concrete slab at the top.

[0007] The first beam section can have a through-hole. A threaded rod can be passed through this through-hole. This threaded rod can, for example, be anchored in a load-bearing cavity wall located beneath the first beam section. This makes it possible to connect the wood-concrete composite floor element to the underlying wall. It is also conceivable to pass the threaded rod through the load-bearing beam and the first beam section and anchor it in the underlying cavity wall. This makes it possible to connect the load-bearing beam, together with the wood-concrete composite floor element, to the load-bearing wall. Likewise, it can be provided that the threaded rod is anchored in a load-bearing solid wall, if necessary. For example, it can be positioned in the still-flowing concrete after the in-situ concrete has been poured.Alternatively, a hole can be drilled into the hardened concrete, into which the threaded rod is anchored, for example, using an adhesive. Similarly, other known anchoring options can be provided, depending on the structure of the respective load-bearing wall.

[0008] At least one beam of the timber substructure can have a first beam section extending laterally beyond the reinforced concrete slab at opposite ends. This allows a load-bearing beam to be attached to the opposite side. The beam of the timber substructure can, in particular, be a continuous beam. Such a beam can also be composed of several shorter beams.

[0009] A crossbeam can be arranged between two adjacent beams, offsetting the two beams, with a crossbeam section projecting laterally beyond the reinforced concrete slab. The crossbeam section, which projects laterally beyond the reinforced concrete slab, forms an additional support surface for the load-bearing beam. The crossbeam can also be used to attach a wall element to the wood-concrete composite floor element.

[0010] The crossbeam section can be reduced in height compared to the rest of the crossbeam. The height reduction can correspond to the height reduction of the first beam section, so that the support surfaces for the load-bearing beam are all arranged at the same height.

[0011] At least one, preferably several, first beam sections can be attached to a long side of a beam, projecting laterally beyond the reinforced concrete slab. A load-bearing beam can also be placed on these first beam sections. Thus, first beam sections can be provided on two sides of the wood-concrete composite floor element arranged at 90° to each other.

[0012] Also within the scope of the invention is a wood-concrete composite floor comprising a plurality of wood-concrete composite floor elements according to the invention. Such a wood-concrete composite floor can, in particular, have a plurality of supports for one or more load-bearing beams. The wood-concrete composite floor can have a circumferential channel or groove for accommodating one or more load-bearing beams or a circumferential frame of load-bearing beams if corresponding load-bearing beams are placed on the first beam sections. Load-bearing beams can be installed by a prefabricated house builder or by a basement builder.

[0013] The wood-concrete composite floor can have a load-bearing beam that is supported on several initial beam sections. A wall element of a house can then be positioned on this load-bearing beam.

[0014] The height of the load-bearing beam can be equal to the sum of the height reduction of the first beam section and the thickness of the reinforced concrete slab. This results in the top of the load-bearing beam being at the same height as the top of the reinforced concrete slab.

[0015] A threaded rod may be provided extending through the first beam section or through the load-bearing beam and the first beam section. If the threaded rod extends through the load-bearing beam and the first beam section, these elements can be jointly connected to an underlying wall.

[0016] The first beam sections of two adjacent wood-concrete composite floor elements can be offset, and a load-bearing beam can be placed on the first beam sections of both wood-concrete composite floor elements. The offset arrangement of the first beam sections of the two wood-concrete composite floor elements makes it possible to arrange the two wood-concrete composite floor elements relatively close to each other, leaving only a small gap that can be filled by a load-bearing beam. In the area of ​​the overlapping first beam sections, the two wood-concrete composite floor elements can be connected to an underlying wall.

[0017] Further advantages of the invention will become apparent from the description and the drawings. Likewise, the above-mentioned and further-described features can be used individually or in combination in any desired manner. The embodiments shown and described are not intended to be exhaustive, but rather are exemplary in nature for describing the invention.

[0018] They show: Fig. 1a a plan view of a first wood-concrete composite floor element; Fig. 1b a sectional view along the line Ib-Ib in the Fig. 1a; Fig. 1c a sectional view along the line Ic-Ic of the Fig. 1a; Fig. 1d a side view of the wood-concrete composite floor element; Fig. 2 a view from below of the wood-concrete composite ceiling element of the Fig. 1a; Fig. 3a a view from below of a second wood-concrete composite ceiling element; Fig. 3b a sectional view along the line IIIb-IIIb of the Fig. 3a; Fig. 4 is a partial sectional view illustrating the fastening of a wood-concrete composite floor element to a load-bearing wall, wherein a load-bearing beam is connected to the load-bearing wall together with a first beam; Fig. 5 one of the Fig. 4 corresponding representation, whereby only the first beam section is connected to the load-bearing wall via a threaded rod; Fig. 6a a plan view of two wood-concrete composite floor elements; Fig. 6b a view of one side of the arrangement of the Fig. 6a; Fig. 7a is a partial sectional view illustrating the fastening of a wood-concrete composite floor element to a load-bearing wall, wherein a threaded rod has been inserted into the fresh concrete of the load-bearing wall and wherein a load-bearing beam is formed from concrete; Fig. 7b one of the Fig. 7a corresponding representation, where a threaded rod was subsequently anchored in the hardened concrete of a load-bearing wall.

[0019] Fig. Figure 1a shows a plan view of a wood-concrete composite floor element 10. The wood-concrete composite floor element has a wood substructure 12 comprising a plurality of parallel beams 14, 16, 18, 20. Parallel beams 14 to 20 are spaced apart by cross beams 22, 24, 26, 28, 30, 32. A reinforced concrete slab 34 is arranged on the wood substructure 12. The reinforced concrete slab 34 is connected to the wood substructure 12. On a first side of the wood-concrete composite floor element 10, first beam sections 36, 38, 40, 42 are provided, which project laterally beyond the reinforced concrete slab 34. The first beam sections 36, 38, 40, 42 represent the ends of the beams 14, 16, 18, 20. First beam sections 44, 46, 48, 50 are also provided on the opposite side, which also project laterally beyond the reinforced concrete slab 34.On a third side, offset by 90° from the other two sides described above, first beam sections 52, 54, 56, 58, 60, 62 are arranged, which also project laterally beyond the reinforced concrete slab 34. The first beam sections 52 to 62 are attached to the beams 20.

[0020] The Fig. 1b shows a sectional view along the line Ib-Ib of the Fig. 1a. Here, it can be seen that the first beam sections 40, 48 are reduced in height compared to a second beam section 18b of the beam 18. The crossbeam 24 has a crossbeam section 24' that is also reduced in height. The height reduction of the crossbeam 24 corresponds to the height reduction of the first beam sections 40, 48.

[0021] The Fig. Figure 1c shows a sectional view along the line Ic-Ic of the Fig. 1a. In this sectional view, it can be seen that the first beam section 62 is also reduced in height, or has a lower height, than the beams 14, 16, 18, 20.

[0022] The Fig. 1d shows a side view of the wood-concrete composite floor element 10 of the Fig. 1a. The reference numbers of the elements described so far are entered.

[0023] The Fig. 2 shows a plan view of the underside of the wood-concrete composite ceiling element 10 of the Fig. 1a. Here, it can be seen that a compartment is formed between the beams 14, 16, 18, and 20, which can be filled with insulation material. The reference numbers of the elements of the wood-concrete composite ceiling element 10 described above are shown.

[0024] The Fig. Figure 3a shows a view of the underside of an alternative embodiment of a wood-concrete composite floor element 10a, which also has a wood substructure 12a. The wood substructure 12a has beams 14a, 16a, 18a, which are spaced apart by crossbeams 22a, 24a, 28a, 30a. First beam sections 36a, 38a, 40a protrude laterally on one side relative to a reinforced concrete slab 34a. On the opposite side, first beam sections 44a, 46a, 48a also protrude laterally beyond the reinforced concrete slab 34a. The first beam sections 36a, 38a, 40a, 44a, 46a, 48a are reduced in height compared to the remaining beams 14a, 16a, 18a and thus to a second beam section. The cross beams 22a, 24a have beam sections 22a', 24a' that are reduced in height and project laterally beyond the reinforced concrete slab 34a.

[0025] The Fig. Figure 3b shows a sectional view along line IIIb-IIIb of the Fig. 3a.

[0026] Fig. Figure 4 shows the connection to a load-bearing wall 100 using the example of the wood-concrete composite ceiling element 10. The load-bearing wall 100 is designed as a hollow wall and, for example, is part of a basement. Likewise, the load-bearing wall 100 could be a solid wall. The wood-concrete composite ceiling element 10 is placed on the load-bearing wall 100 with its first beam section 40. A load-bearing beam 102 is, in turn, placed on the first beam section 40. Both the first beam section 40 and the load-bearing beam 102 have a through-hole 104, 106 through which a threaded rod 108 is inserted. The threaded rod 108 is anchored in the load-bearing wall 100. The threaded rod 108 thus connects the load-bearing beam 102 and the first beam section 40, and thus the wood-concrete composite ceiling element 10, to the load-bearing wall 100. A wall element 110 is placed on the load-bearing beam 102.The load-bearing beam 102 is visible from above, which facilitates the positioning of the wall element 110. Precise positioning of the wall element 110 is not required; in particular, a certain lateral offset is tolerable, which facilitates the installation of the wall element 110. The wall element 110 can be attached using an angle bracket 112, which can be connected to the crossbeam 24 via a fastener 114. This ensures secure attachment of the wall element 110. Insulation 116 can be applied subsequently.

[0027] The design according to the Fig. 5 differs from the design according to the Fig. 4 in that only the first beam section 40 has a through-hole 104 in which the threaded rod 108 is arranged. Thus, only the first beam section 40 is connected to the load-bearing wall 100 via the threaded rod 108. The load-bearing beam 102 mounted on the first beam section 40 can be mounted only on the first beam section 40 or connected to it in some other way.

[0028] The Fig. Figure 6a shows a plan view of two wood-concrete composite floor elements 200, 202. On mutually facing sides, the wood-concrete composite floor elements each have first beam sections 204, 206, 208. The first beam sections 204, 208 are assigned to the wood-concrete composite floor element 200, and the first beam section 206 is assigned to the wood-concrete composite floor element 202. The first beam section 206 is arranged overlapping the first beam sections 204, 208. A load-bearing beam 210 is placed on the first beam sections 204, 206, 208. The load-bearing beam 210 can preferably be made of wood or concrete, in particular reinforced concrete. In particular, insulating material can be inserted below the load transfer beam 210 between the respective first beam sections 204 and 206 and 206 and 208.

[0029] The Fig. Figure 6b shows a side view of the arrangement according to the Fig. 6a. Here, it can be seen that the top of the load-bearing beam 210 is arranged at the same height as the top of the wood-concrete composite floor elements 200, 202. The first beam sections 204, 206, 208 are therefore reduced in height. The load-bearing beam 210 can be connected to a wall 212 arranged below it.

[0030] A wood-concrete composite floor can be formed from several of the previously described wood-concrete composite floor elements 10, 10a, 200, 202. Such a wood-concrete composite floor can, for example, represent the basement ceiling of a cellar.

[0031] The Fig. Figure 7a shows another possibility of connecting the wood-concrete composite ceiling element 10 to a load-bearing wall 300. In a partial sectional view, the first beam section 58 arranged on the beam 20 and the reinforced concrete slab 34 are visible.

[0032] The load-bearing wall 300 has two shell-like prefabricated elements 301, 302, with in-situ concrete poured between the shell-like prefabricated elements 301, 302. A threaded rod 308 with a first nut 309 screwed into the area of ​​the lower end of the threaded rod 308 was inserted into the still fresh in-situ concrete. After the in-situ concrete has hardened, the threaded rod 308 and the nut 309 are firmly anchored in the load-bearing wall 300. The threaded rod 308 passes through a through hole 304 in the first beam section 58. A second nut 310 screwed onto the threaded rod 308 rests against the upper side of the first beam section 58.

[0033] In the example shown, a load-bearing beam 306 is made of reinforced concrete. In particular, the load-bearing beam 306 was formed using in-situ concrete, embedding the threaded rod 308 and the second nut 310, as well as a third nut 311 screwed onto the upper end of the threaded rod 308. If several such load-bearing beams 306 form a closed ring, for example, by arranging them on all exterior walls of a building, a concrete chord can advantageously be formed. Similarly, a load-bearing beam 306 made of concrete can be arranged on a load-bearing interior wall.

[0034] Perpendicular to the representation plane, in front of and behind the first beam section 58 in the space up to the respective next first beam section 56, 60 (see Fig. 1a) in particular insulating material (not visible). Preferably, insulating material can be arranged between at least some, preferably all, of the respective adjacent first beam sections 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62 (see Fig. 1a) be arranged on the circumference of the wood-concrete composite ceiling element 10.

[0035] Although both the load-bearing beam 306 and the reinforced concrete slab 34 are made of reinforced concrete in the illustrated embodiment, the load-bearing beam 306 is clearly visible from above. This facilitates the positioning of an overlying wall element (see Fig. 4 and Fig. 5) facilitated.

[0036] The Fig. 7b shows a Fig. 7a similar type of connection of the wood-concrete composite ceiling element 10 to a load-bearing wall 300. In contrast to Fig.7a, the threaded rod 308 was subsequently inserted through a hole in the solid concrete of the load-bearing wall and anchored therein by means of an adhesive 312.

Claims

[1] Wood-concrete composite ceiling element (10, 10a, 200, 202) with a wooden substructure (12, 12a) comprising several beams (14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 14a, 16a, 18a, 22a, 24a, 28a, 30a) and a reinforced concrete slab (34, 34a) arranged on the wooden substructure (12, 12a) and connected thereto, characterized by that on at least one side of the wood-concrete composite ceiling element (10, 10a, 200, 202) at least one first beam section (36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 36a, 38a, 40a, 44a, 46a, 48a, 204, 206, 208) projects laterally beyond the reinforced concrete slab (34, 34a). [2] Wood-concrete composite ceiling element according to claim 1, characterized by that the first beam section (36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 36a, 38a, 40a, 44a, 46a, 48a, 204, 206, 208) is reduced in height compared to a second beam section (18b) arranged under the reinforced concrete slab (34, 34a). [3] Wood-concrete composite ceiling element according to one of the preceding claims, characterized by that the first beam section (36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 36a, 38a, 40a, 44a, 46a, 48a, 204, 206, 208) has a through hole (104, 304). [4] Wood-concrete composite ceiling element according to one of the preceding claims, characterized by that at least one beam (14, 16, 18, 20, 14a, 16a, 18a) of the wooden substructure (12, 12a) has at opposite ends in each case a first beam section (36, 38, 40, 42, 44, 46, 48, 50, 36a, 38a, 40a, 44a, 46a, 48a) projecting beyond the reinforced concrete slab (34, 34a). [5] Wood-concrete composite ceiling element according to one of the preceding claims, characterized bythat between two adjacent beams (14, 16, 18, 20, 14a, 16a, 18a) there is arranged a cross beam (22, 24, 26, 28, 30, 32, 22a, 24a, 28a, 30a) which spaced the two beams (14, 16, 18, 20, 14a, 16a, 18a) apart and which projects laterally beyond the reinforced concrete slab (34, 34a) with a cross beam section (24'). [6] Wood-concrete composite ceiling element according to one of the preceding claims, characterized by that the crossbeam section (24') is reduced in height compared to the remaining crossbeam (22, 24, 26, 28, 30, 32, 22a, 24a, 28a, 30a). [7] Wood-concrete composite ceiling element according to one of the preceding claims, characterized by that at least one, preferably several first beam sections (52, 54, 56, 58, 60, 62) which project laterally beyond the reinforced concrete slab (34) are attached to a longitudinal side of a beam (20). [8] Wood-concrete composite floor comprising a plurality of wood-concrete composite floor elements (10, 10a, 200, 202) according to one of the preceding claims. [9] Wood-concrete composite floor according to claim 8, characterized by that a load transfer beam (102, 210, 306) is placed on several first beam sections (36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 36a, 38a, 40a, 44a, 46a, 48a, 204, 206, 208). [10] Wood-concrete composite floor according to claim 8 or 9, characterized by that the height of the load transfer beam (102, 210, 306) corresponds to the sum of the height reduction of the first beam section (36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 36a, 38a, 40a, 44a, 46a, 48a, 204, 206, 208) and the thickness of the reinforced concrete slab (34, 34a). [11] Wood-concrete composite floor according to one of claims 8 to 10, characterized bythat a threaded rod (108, 308) is provided which extends through the first beam section (36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 36a, 38a, 40a, 44a, 46a, 48a, 204, 206, 208) or through the load transfer beam (102, 210, 306) and the first beam section (36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 36a, 38a, 40a, 44a, 46a, 48a, 204, 206, 208). [12] Wood-concrete composite floor according to one of the preceding claims 8 to 11, characterized by that the first beam sections (204, 206, 208) of two adjacent wood-concrete composite ceiling elements (200, 202) are arranged offset and a load transfer beam (210) is placed on the first beam sections (204, 206, 208) of both wood-concrete composite ceiling elements (200, 202).

Images