WO2011001021A1 - Fastening plate - Google Patents

Fastening plate Download PDF

Info

Publication number
WO2011001021A1
WO2011001021A1 PCT/FI2010/050508 FI2010050508W WO2011001021A1 WO 2011001021 A1 WO2011001021 A1 WO 2011001021A1 FI 2010050508 W FI2010050508 W FI 2010050508W WO 2011001021 A1 WO2011001021 A1 WO 2011001021A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
anchorage
fastening
concrete
plate part
Prior art date
Application number
PCT/FI2010/050508
Other languages
French (fr)
Inventor
Kari Tuominen
Raimo Lehtinen
Dominique Dupuch
Original Assignee
Peikko Group Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Peikko Group Oy filed Critical Peikko Group Oy
Publication of WO2011001021A1 publication Critical patent/WO2011001021A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry

Definitions

  • the invention relates to a fastening plate comprising a plate part and anchorage parts fastened thereto, the fastening plate being intended to be arranged in concrete before the concrete hardens and further to be fastened to the concrete by means of the concrete hardening, whereby each anchorage part is fastened to the plate part by means of a threaded connection provided by a threaded part at the anchorage part and a hole with internal threads and provided in the plate part.
  • Fastening plates are elements intended to be fastened to concrete before the concrete hardens.
  • Fastening plates are made of a suitable material, such as steel material.
  • anchorage parts are fastened to the plate part in a suitable way, such as by welding them to the plate surface or to a hole extending through the plate. Threaded connections have also been used for fastening anchorage parts to the plate part.
  • the fastening plates are arranged in concrete in such a manner that the anchorage parts protrude into the concrete and the outer surface of the plate part lies on the surface of the concrete. The fastening plates adhere to the concrete during the hardening of the concrete.
  • the purpose of a fastening plate is to achieve a structure allowing the transfer of forces and loads induced by different structures to concrete.
  • the aforementioned structure is achieved by fastening structural fastening means to the plate part on the surface of the concrete after the concrete has hardened.
  • the fastening may be performed by welding directly to the plate part, for example.
  • different structures may be fastened to the structural fastening means mentioned above and it is possible to achieve a structure that transfers forces and loads induced by different structures via the fastening plate to the concrete.
  • the purpose of the invention is to provide a fastening plate, by which the prior art disadvantages can be eliminated. This is achieved by a fastening plate according to the invention.
  • the fastening plate of the invention is characterized in that, in the plate part, there is provided at least one alterna- tive hole with internal threads for at least one anchorage part to fasten the anchorage part to the plate part.
  • the invention provides above all the advantage that it is remarkably easy to arrange the plate at the reinforcement when compared with prior art fastening plates, which have fixed fastening points for anchorage parts.
  • An advantage of the invention is also its simplicity, which makes the adoption of the invention advantageous.
  • Figure 1 shows a perspective principle view of a fastening plate at- tached to a concrete structure and structural fastening means fastened to the fastening plate
  • Figure 2 shows a principle view of the fastening plate of the invention from the side
  • Figure 3 shows a principle view of the fastening plate according to Figure 2 from another direction
  • Figure 4 shows a detail A of Figure 2 on a larger scale.
  • FIG. 1 shows the principle of a fastening plate attached to a concrete structure 1.
  • the fastening plate comprises a plate part 2 and anchorage parts 3.
  • Structural fastening means 10 are fastened to the plate part 2.
  • the anchorage parts 3 may be fastened to the plate part 2 by welding or a threaded connection, for instance.
  • the fastening plate is arranged in concrete before the concrete dries, whereby it is fastened to the concrete while the concrete hardens.
  • the concrete structure 1 and the structural fastening means 10 are shown in Figure 1 by broken lines.
  • the concrete structure 1 may be any known structure.
  • the structural fastening means may be any structures known per se.
  • different structural elements of a building may be fastened to the structural fastening means 10, whereby forces and loads induced by these structural elements are transferred to the concrete via the fastening plate.
  • the plate part 2 may be made of any suitable material, such as a steel plate part.
  • the anchorage parts may be any suitable steel parts.
  • the free ends of the anchorage parts may comprise expansion parts, as shown in Figure 1 .
  • the aforementioned expansion parts are not necessary but it is quite possible to use anchorage parts without expansion parts.
  • the anchorage parts may be smooth-surface elements or elements with suitable projection surfaces, such as ribbed steel bars.
  • FIGS 2 to 4 illustrate an embodiment of the fastening plate of the invention.
  • the same reference numerals are used in Figures 2 to 4 as in Figure 1 to refer to the corresponding parts.
  • the anchorage parts 3 are fastened to the plate part 2 by means of a threaded connection.
  • the threaded connection comprises a threaded part 4 provided at the anchorage part 3 and a hole 6 with internal threads 5 provided in the plate part 2.
  • the plate part 2 there is provided at least one alternative hole 7 with internal threads for at least one anchorage part 3 to fasten the anchorage part 3 to the plate part 2.
  • the idea of an alternative fastening point is to enable the arranging of the anchorage part 3 in a suitable hole with internal threads, such as either a hole 6 or 7, according to the reinforcement.
  • the location of the fastening point for the anchorage part 3, i.e. the hole 6 with internal threads is fixed.
  • Due to an alternative fastening point it is easier to arrange the plate part than in cases where prior art fastening plates are used, since the location of the fastening parts 3 may be varied according to the reinforcement.
  • each anchorage part 3 may be arranged in either the hole 6 or the hole 7 serving as an alternative fastening point.
  • this is not the only feasible solution, but the invention may be applied in different ways.
  • a fastening plate where only one anchorage part 3 comprises an alternative fastening point, i.e. an alternative hole 7 with internal threads.
  • This application may be further modified in such a manner that a fastening plate is formed, in which one anchorage part 3 has a plurality of alternative fastening points, i.e. alternative holes 7 provided with internal threads.
  • the aforementioned applications may be further modified in such a manner that more than one anchorage part 3 has one or more alternative fastening points, i.e. alternative holes 7 provided with internal threads.
  • the plate part may thus comprise an additional fastening point or additional fastening points for, for instance, two, three, etc. anchorage parts 3.
  • each anchorage part of the plate part 2 of the fastening part has an alternative fastening point, i.e. an alternative hole 7 with internal threads, or a plurality of alternative fastening points, i.e. alternative holes 7 with internal threads.
  • anchorage parts 3 of the fastening plate may naturally vary depending on the need.
  • the threaded connection of the anchorage parts may be a conventional threaded connection, as shown by the example of the figures. However, it is also possible that different yielding flange and/or wall solutions are used in connection with the threaded connection, enabling the user to see that the anchorage part is tightened to a sufficient degree.
  • the above applications are not intended to limit the invention in any way, but the invention may be varied entirely freely within the scope of the claims.
  • the shape and size of the plate part may vary freely according to each situation. Accordingly, the number and dimensions of the anchorage parts may vary freely according to the situation, etc.
  • the alternative holes with internal threads may also be placed differently from how the figures show, which means that the location of alternative holes with internal threads may vary depending on the need. Also, the number of alternative holes with internal threads may vary depending on the need, as was stated above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Connection Of Plates (AREA)

Abstract

The invention relates to a fastening plate comprising a plate part (2) and anchorage parts (3) fastened thereto. The fastening plate is intended to be arranged in concrete before the concrete hardens and further to be fastened to the concrete by means of the concrete hardening, whereby each anchorage part (3) is fastened to the plate part (2) by means of a threaded connection provided by a threaded part (4) at the anchorage part and a hole (6) with internal threads (5) and provided in the plate part. In the plate part (2), for at least one anchorage part (3) there is provided at least one alternative hole (7) with internal threads to fasten the anchorage part to the plate part (2).

Description

Fastening plate
[0001] The invention relates to a fastening plate comprising a plate part and anchorage parts fastened thereto, the fastening plate being intended to be arranged in concrete before the concrete hardens and further to be fastened to the concrete by means of the concrete hardening, whereby each anchorage part is fastened to the plate part by means of a threaded connection provided by a threaded part at the anchorage part and a hole with internal threads and provided in the plate part.
[0002] Various fastening plates are nowadays well-known in the construction industry. Fastening plates are elements intended to be fastened to concrete before the concrete hardens. Fastening plates are made of a suitable material, such as steel material. According to the prior art, anchorage parts are fastened to the plate part in a suitable way, such as by welding them to the plate surface or to a hole extending through the plate. Threaded connections have also been used for fastening anchorage parts to the plate part. The fastening plates are arranged in concrete in such a manner that the anchorage parts protrude into the concrete and the outer surface of the plate part lies on the surface of the concrete. The fastening plates adhere to the concrete during the hardening of the concrete.
[0003] The purpose of a fastening plate is to achieve a structure allowing the transfer of forces and loads induced by different structures to concrete. The aforementioned structure is achieved by fastening structural fastening means to the plate part on the surface of the concrete after the concrete has hardened. The fastening may be performed by welding directly to the plate part, for example. Thus, different structures may be fastened to the structural fastening means mentioned above and it is possible to achieve a structure that transfers forces and loads induced by different structures via the fastening plate to the concrete.
[0004] There are some practical problems with the prior art solutions. In case of using prefabricated fastening plates, in which the anchorage parts are fastened by welding, the problem is that it is in many cases difficult and sometimes even impossible to mount the plates in their places in the concrete structure, if the concrete structure has a great number of reinforcements. Another disadvantage of a welded connection is also that the anchorage parts welded to the surface cause additional stress on the plate part which, in turn, makes additional demands on the plate part.
[0005] In cases where the welded structure causes problems, it is naturally possible to use fastening plate solutions, in which the anchorage parts are fastened to the plate part by a threaded connection. A drawback of this solution is that, under construction site conditions, it is often difficult to screw in the anchorage part to its place due to reinforcements and limited work and assembly spaces and also to ensure the proper operation of the threads of the threaded connection. A poor fastening of the anchorage parts may endan- ger the entire fastening process of the fastening plate to the concrete.
[0006] The purpose of the invention is to provide a fastening plate, by which the prior art disadvantages can be eliminated. This is achieved by a fastening plate according to the invention. The fastening plate of the invention is characterized in that, in the plate part, there is provided at least one alterna- tive hole with internal threads for at least one anchorage part to fasten the anchorage part to the plate part.
[0007] The invention provides above all the advantage that it is remarkably easy to arrange the plate at the reinforcement when compared with prior art fastening plates, which have fixed fastening points for anchorage parts. An advantage of the invention is also its simplicity, which makes the adoption of the invention advantageous.
[0008] The invention will be explained in the following in more detail by means of the example described in the attached drawing, in which
Figure 1 shows a perspective principle view of a fastening plate at- tached to a concrete structure and structural fastening means fastened to the fastening plate,
Figure 2 shows a principle view of the fastening plate of the invention from the side,
Figure 3 shows a principle view of the fastening plate according to Figure 2 from another direction, and
Figure 4 shows a detail A of Figure 2 on a larger scale.
[0009] Figure 1 shows the principle of a fastening plate attached to a concrete structure 1. The fastening plate comprises a plate part 2 and anchorage parts 3. Structural fastening means 10 are fastened to the plate part 2. The anchorage parts 3 may be fastened to the plate part 2 by welding or a threaded connection, for instance. The fastening plate is arranged in concrete before the concrete dries, whereby it is fastened to the concrete while the concrete hardens.
[0010] The concrete structure 1 and the structural fastening means 10 are shown in Figure 1 by broken lines. The concrete structure 1 may be any known structure. Accordingly, the structural fastening means may be any structures known per se. For example, different structural elements of a building may be fastened to the structural fastening means 10, whereby forces and loads induced by these structural elements are transferred to the concrete via the fastening plate. These facts are well known to a person skilled in the art, wherefore they are not explained in greater detail herein.
[0011] The plate part 2 may be made of any suitable material, such as a steel plate part. The anchorage parts may be any suitable steel parts. The free ends of the anchorage parts may comprise expansion parts, as shown in Figure 1 . However, the aforementioned expansion parts are not necessary but it is quite possible to use anchorage parts without expansion parts. The anchorage parts may be smooth-surface elements or elements with suitable projection surfaces, such as ribbed steel bars.
[0012] For a person skilled in the art, this is fully conventional technology, wherefore it is not explained in greater detail herein.
[0013] Figures 2 to 4 illustrate an embodiment of the fastening plate of the invention. The same reference numerals are used in Figures 2 to 4 as in Figure 1 to refer to the corresponding parts.
[0014] In the embodiment of Figures 2 to 4, the anchorage parts 3 are fastened to the plate part 2 by means of a threaded connection. The threaded connection comprises a threaded part 4 provided at the anchorage part 3 and a hole 6 with internal threads 5 provided in the plate part 2.
[0015] According to the essential idea of the invention, in the plate part 2, there is provided at least one alternative hole 7 with internal threads for at least one anchorage part 3 to fasten the anchorage part 3 to the plate part 2. The idea of an alternative fastening point is to enable the arranging of the anchorage part 3 in a suitable hole with internal threads, such as either a hole 6 or 7, according to the reinforcement. In the prior art fastening plates, the location of the fastening point for the anchorage part 3, i.e. the hole 6 with internal threads, is fixed. Thus, it is in some cases difficult to arrange the plate part at the reinforcement. Due to an alternative fastening point, it is easier to arrange the plate part than in cases where prior art fastening plates are used, since the location of the fastening parts 3 may be varied according to the reinforcement.
[0016] In the example of the figures, there is one alternative fastening point of an anchorage part 3, i.e. hole 7 with internal threads, for each ac- tual fastening point, i.e. hole 6 with internal threads, which means that each anchorage part 3 may be arranged in either the hole 6 or the hole 7 serving as an alternative fastening point. However, this is not the only feasible solution, but the invention may be applied in different ways.
[0017] According to the basic idea of the invention, it is for instance possible to provide a fastening plate where only one anchorage part 3 comprises an alternative fastening point, i.e. an alternative hole 7 with internal threads. This application may be further modified in such a manner that a fastening plate is formed, in which one anchorage part 3 has a plurality of alternative fastening points, i.e. alternative holes 7 provided with internal threads.
[0018] The aforementioned applications may be further modified in such a manner that more than one anchorage part 3 has one or more alternative fastening points, i.e. alternative holes 7 provided with internal threads. The plate part may thus comprise an additional fastening point or additional fastening points for, for instance, two, three, etc. anchorage parts 3.
[0019] The aforementioned applications may be further modified in such a manner that each anchorage part of the plate part 2 of the fastening part has an alternative fastening point, i.e. an alternative hole 7 with internal threads, or a plurality of alternative fastening points, i.e. alternative holes 7 with internal threads.
[0020] It is to be noted in connection with each aforementioned application that the number of anchorage parts 3 of the fastening plate may naturally vary depending on the need. In the example of the figures there are four anchorage parts 3. However, this is not the only alternative, but the number of anchorage parts may vary. There may also be, for example, six anchorage parts 3, etc.
[0021] The threaded connection of the anchorage parts may be a conventional threaded connection, as shown by the example of the figures. However, it is also possible that different yielding flange and/or wall solutions are used in connection with the threaded connection, enabling the user to see that the anchorage part is tightened to a sufficient degree. [0022] The above applications are not intended to limit the invention in any way, but the invention may be varied entirely freely within the scope of the claims. For example, the shape and size of the plate part may vary freely according to each situation. Accordingly, the number and dimensions of the anchorage parts may vary freely according to the situation, etc. The alternative holes with internal threads may also be placed differently from how the figures show, which means that the location of alternative holes with internal threads may vary depending on the need. Also, the number of alternative holes with internal threads may vary depending on the need, as was stated above.

Claims

Claims
1. A fastening plate comprising a plate part (2) and anchorage parts (3) fastened thereto, the fastening plate being intended to be arranged in concrete before the concrete hardens and further to be fastened to the concrete by means of the concrete hardening, whereby each anchorage part (3) is fastened to the plate part (2) by means of a threaded connection provided by a threaded part (4) at the anchorage part and a hole (6) with internal threads (5) and provided in the plate part, characterized in that, in the plate part (2), there is provided at least one alternative hole (7) with internal threads for at least one anchorage part (3) to fasten the anchorage part to the plate part (2).
2. A fastening plate as claimed in claim ^ characterized in that, in the plate part (2), for each anchorage part (3) there is provided at least one alternative hole (7) with internal threads to fasten the anchorage part to the plate part (2).
3. A fastening plate as claimed in claim ^ characterized in that, in the plate part (2), for the anchorage part (3) there is provided more than one alternative hole (7) with internal threads to fasten the anchorage part to the plate part (2).
4. A fastening plate as claimed in claim 2, characterized in that, in the plate part (2), for each anchorage part (3) there is provided more than one alternative hole (7) with internal threads to fasten the anchorage part to the plate part (2).
PCT/FI2010/050508 2009-07-03 2010-06-16 Fastening plate WO2011001021A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20095759A FI20095759A0 (en) 2009-07-03 2009-07-03 fastening plate
FI20095759 2009-07-03

Publications (1)

Publication Number Publication Date
WO2011001021A1 true WO2011001021A1 (en) 2011-01-06

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ID=40935840

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2010/050508 WO2011001021A1 (en) 2009-07-03 2010-06-16 Fastening plate

Country Status (2)

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FI (1) FI20095759A0 (en)
WO (1) WO2011001021A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59182502U (en) * 1983-05-24 1984-12-05 三菱重工業株式会社 Embedded board for reinforced concrete structures
JP2005133360A (en) * 2003-10-29 2005-05-26 Hitachi Plant Eng & Constr Co Ltd Dowel after putting type embedded hardware

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59182502U (en) * 1983-05-24 1984-12-05 三菱重工業株式会社 Embedded board for reinforced concrete structures
JP2005133360A (en) * 2003-10-29 2005-05-26 Hitachi Plant Eng & Constr Co Ltd Dowel after putting type embedded hardware

Also Published As

Publication number Publication date
FI20095759A0 (en) 2009-07-03

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