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Title:
A SYSTEM FACILITATING POSITION ADJUSTMENT OF SEISMIC BRACES PROTECTING ROD HANGERS AGAINST EARTHQUAKES
Document Type and Number:
WIPO Patent Application WO/2014/178808
Kind Code:
A2
Abstract:
The invention relates to a system which comprises rod connection part (50), structural connection part (10), and rigid brace profile (20) and which enables the rigid brace profile (20) used in construction industry for protecting the installation against earthquake load to be connected to rod hangers (80) and to the structural connection part (10) in desired brace length (60) and with desired connection angle (70) in brace direction, without having to cut the rigid brace profile (20), said system facilitating the position adjustment of lateral seismic braces providing protection against earthquake load; wherein said system further comprises a length adjustment part (30) which is fixed in the rigid brace profile (20) in the desired area by being slid on said rigid brace profile (20), and intermediate connection part (40) which prevents the length adjustment part (30) from rotating around the connection member (130) by leaning against the rod connection part (50), helps to adjust the connection angle (70) in fixing members (110) axes, and provides the distance allowing mounting between the rod (81) and the rigid brace profile (20) by interconnecting the length adjustment part (30) and the rod connection part (50), without having to cut the rigid brace profile (20).

Inventors:
KARSU, Mustafa (Akçaburgaz Mah. 119. Sk. No:10 Esenyurt, Istanbul, TR)
HARTOKA, Ahmet Timucin (Akçaburgaz Mah. 119. Sk. No:10 Esenyurt, Istanbul, TR)
Application Number:
TR2014/000150
Publication Date:
November 06, 2014
Filing Date:
April 29, 2014
Export Citation:
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Assignee:
EAE ELEKTRIK ASANSOR ENDUSTRISI INSAAT SANAYI VE TICARET ANONIM SIRKETI (Akcaburgaz Mah. 119. Sk. No: 10 Esenyurt, Istanbul, TR)
International Classes:
E04H9/02
Domestic Patent References:
WO2000019028A12000-04-06
WO2012075576A12012-06-14
Foreign References:
US4065218A1977-12-27
Other References:
None
Attorney, Agent or Firm:
DESTEK PATENT, INC. (Konak Mah. Lefkose Cad. NM Ofis Park B, Blok No: 36 / 5 Besevler Nilufer, Bursa, 16110, TR)
Download PDF:
Claims:
CLAIMS

1. A system which comprises

- structural connection part (10),

rigid brace profile (20), and

rod connection part (50) and which enables the rigid brace profile (20) used in construction industry for protecting installation against earthquake load to be connected to rod hangers (80) and to the structural connection part (10) in desired brace length (60) and with desired connection angle (70) in direction of rigid brace profile (20), without having to cut the rigid brace profile (20), said system facilitating position adjustment of horizontal seismic braces providing protection against earthquake load; characterized in further comprising a length adjustment part (30) which is fixed in the rigid brace profile (20) in the desired area by being slid on said rigid brace profile (20), and

intermediate connection part (40) which prevents the length adjustment part (30) from rotating around connection member (130) by leaning against the rod connection part (50), helps to adjust the connection angle (70) in fixing members (1 10) axes, and provides distance allowing mounting between the rod (81) and the rigid brace profile (20) by interconnecting the length adjustment part (30) and the rod connection part (50), without having to cut the rigid brace profile (20). 2. The system according to Claim 1 ; characterized in comprising an additional safety extension (33) which is formed on the length adjustment part (30), is located in movement channel (23) inside the rigid brace profile (20), provides additional safety for the deformations likely to occur in the safety bolt (50) after fixation, and also helps the length adjustment part (30) to be fixed in the movement channel (53).

3. The system according to Claim 1 ; characterized in that

- said rod connection part (50) allows the brace direction to be adjusted longitudinally and transversely with respect to the installation, and - said rod connection part (50) comprises channels (51) thereon which are formed in reverse manner, provided with cavities (52) in closed ends thereof, and through which the rod (81) is passed during mounting. 4. The system according to Claim 1 ; characterized in that the channel (51) and cavities (52) on said rod connection part (50) are compatible with the rods (81) of M8, M10.M12, or M14, M15, M16, M17, M18, M19, and M20 in size.

5. The system according to Claim 1 ; characterized in comprising length adjustment part fixing member (22) which is located in the movement channel (53) of the rigid brace profile (20) and allows up and down movement of the length adjustment part (30) inside the movement channel (23), and

a safety (i.e. shear) bolt (150) fixing the length adjustment part (30) in the rigid brace profile (20).

6. The system according to Claim 5; characterized in that said fixing member (22) is spring nut.

7. The system according to Claim 5; characterized in that said safety bolt (150) is shear bolt.

Description:
DESCRIPTION

A System Facilitating Position Adjustment of Seismic Braces Protecting Rod Hangers against Earthquakes

Technical Field

The invention relates to length adjustment and connection pieces (i.e. parts) providing protection against horizontal loads occurring in rod hangers in case of earthquake, within construction industry.

The invention more particularly relates to a system which enables the desired seismic brace length to be adjusted according to need without cutting the rigid brace profile (i.e. beam) and which is located between the rod and brace profile, said system comprising length adjustment part, intermediate connection part, and rod connection part.

Prior Art "Earthquake (or quake)" is defined as the tremors suddenly emerging due to the cracks in the crust, shaking the earth surface and the places on their way, by spreading in waves. Compared to other natural disasters, earthquake is a natural phenomenon of geological origin, the time and intensity of which cannot be estimated accurately. When the concept of construction is associated with earthquakes, the definition of construction includes strength, stability, endurance, and resistance against loads and external factors. In reinforced concrete structures, which are most frequently used today, sensitive building elements, e.g. beams, columns, curtains, and slabs, are faced with various forces due to earthquakes at the same time and they need to resist against all of them at once. In order for the reinforced concrete structures to be earthquake-resistant, they must comply with the standards required by the regulations.

Turkey, where earthquakes are frequent, is a country with most areas being in seismic zone 1. By taking this into account, some precautions in mechanical, ventilation, and electric installations, as well as in the statics of the structure, must be taken. Seismic protection has not been paid much attention in designing and implementation of the installations in Turkey up to now. However, some foreign projects recommended taking precautions to some extent. After the latest earthquakes, this issue has gained importance.

In most of the current implementations, the "rigid" horizontal seismic braces, which protect the installation mounted in the building in a hanging manner against earthquake load, cannot be attached without dismounting the hanger, once the rod hangers are mounted.

In current implementations, although the desired seismic brace length and angle can be achieved, the "rigid" brace profile is necessarily adjusted by being cut. In current implementations, the part by which the seismic brace is connected to the structural concrete/steel is not designed in accordance with the required connection angle and causes extra load due to the moment (i.e. prying factor) created in the wall plug and/or bolt.

As a result, due to the drawbacks mentioned above and the inadequacy of the existing solutions regarding the subject matter, it is required to make a development in the related technical field.

Object of the Invention The invention, configured by being inspired by the current conditions, aims to solve the above mentioned drawbacks.

The primary object of the present invention is to enable the length of the brace profile to be adjusted without being cut, among the "rigid" seismic brace systems.

Another object of the invention is to minimize the load in the wall plug and/or bolt resulting from the prying factor, thanks to a mounting part in accordance with the recommended connection angles (35-70 degrees) between the "rigid" seismic brace systems. Another object of the invention is to provide protection against horizontal loads to occur during earthquakes in rod hangers, and to enable the brace direction to be adjusted along the installation length (longitudinal) and installation width (lateral or transverse) thanks to the rod connection part. The object of the invention is to be attachable in rod hangers, which carry the installation in the building, even after the hanger is mounted. Another object of the invention is that the brace can be implemented even after rod hangers are mounted, thanks to the rod connection part.

Another object of the invention is to be used in the connection of steel beams in construction industry.

In order to achieve the aforementioned objects, a system is developed which enables the rigid brace profile used in construction industry for protecting the installation against earthquake load to be connected to rod hangers and to the structural connection part in desired brace length and with desired connection angle in brace direction, without having to cut the rigid brace profile, said system facilitating the position adjustment of seismic braces providing protection against earthquake load; wherein said system further comprises a rod connection part, structural connection part, rigid brace profile, length adjustment part which is fixed in the rigid brace profile in the desired area by being slid on said rigid brace profile, and intermediate connection part which prevents the length adjustment part from rotating around the connection member by leaning against the rod connection part, helps to adjust the connection angle in fixing members axes, and provides the distance allowing mounting between the rod and the rigid brace profile by interconnecting the length adjustment part and the rod connection part, without having to cut the rigid brace profile.

A preferred embodiment of the invention comprises an additional safety extension which is formed on the length adjustment part, is located in the movement channel inside the brace profile, provides additional safety for the deformations likely to occur in the safety bolt after fixation, and also helps the length adjustment part to be fixed in the movement channel.

In a preferred embodiment of the invention, said rod connection part is adjusted both longitudinally and transversely with respect to the installation and said rod connection part comprises channels thereon which are formed in reverse manner, provided with cavities in closed ends thereof, and through which the rod is passed during mounting.

In a preferred embodiment of the invention, the channel and cavities on said rod connection part are compatible with the rods of M8, M10, M12, or M14, M15, M16, M17, M18, M19, and M20 in size. A preferred embodiment of the invention comprises length adjustment part fixing member which is located in the movement channel of the brace profile and allows up and down movement of the length adjustment part inside the movement channel, as well as comprising a safety bolt fixing the length adjustment part in the brace profile.

In a preferred embodiment of the invention, said fixing member is spring nut.

In a preferred embodiment of the invention, said safety bolt is shear bolt.

The structural and characteristic aspects and all the advantages of the present invention will be more clearly understood by means of the following figures and the detailed description written with references to these figures. Therefore, while making an evaluation, these figures and the detailed description should be taken into account.

Figures for a Better Understanding of the Invention Fig. 1 is a front view showing the system facilitating position adjustment of the seismic braces according to the invention such that brace direction is transverse to the installation width.

Fig. 2 shows front and rear perspective views of the structural connection part in the system according to the invention, respectively.

Fig. 3 is the top perspective view of the fixing member (spring nut) in the system according to the invention.

Fig. 4 shows side two-dimensional views of the shear bolt in the system according to the invention, respectively showing before and after the bolt head is removed.

Fig. 5 shows top perspective views of the intermediate connection part in the system according to the invention.

Fig. 6 shows top perspective views of the rod connection part in the system according to the invention.

Fig. 7 shows top perspective views of the adjustable length part in the system according to the invention.

Figs. 8a, 8b, 8c, 8d, and 8e are side two-dimensional views showing how the rod connection part is mounted in the rod within the system according to the invention. (The arrows that are not numbered are used for indicating the attachment and rotation directions of the parts.)

Figs. 9a and 9b are side two-dimensional views showing how the rod connection part having been mounted in the rod is mounted in the intermediate connection part within the system according to the invention. (The arrows that are not numbered are used for indicating the attachment and rotation directions of the parts.) Fig. 10 is the top perspective view showing the system according to the invention in a mounted manner.

Fig. 11 shows the upper perspective views of the parts mounted to one another (except for the rod hanger) in the system according to the invention. In this figure, the inner structure of some part of the rigid brace profile is shown in order for the length adjustment part to be visible.

Fig. 11a is the two-dimensional cross-sectional view showing the position of the spring nut and the form of the safety bolt.

Description of Part Numerals

10. Structural connection part

11. Anchor hole

12. Fixing hole

20. Brace profile

21. Safety bolt bearing

22. Length adjustment part fixing member

23. Movement channel

30. Length adjustment part

31. Safety bolt fixing hole

32. Intermediate connection part fixing hole

33. Additional safety extension

40. Intermediate connection part

41. Contact holes

42. Connection hole

50. Rod connection part

51. Channel

52. Cavity

53. Fixing hole

54. Compression hole

60. Brace length

70. Connection angle

80. Rod hanger

81. Rod

82. Hanger profile

100. Structural connection part fixing members

110. Fixing members 120. Length adjustment part fixing nut

130. Connection member

140. Compression member

150. Safety bolt

The drawings do not necessarily need to be scaled and the details that are not required for understanding the present invention may have been ignored. Apart from that, the elements that are at least substantially identical or have at least substantially identical functions are referred with the same numeral.

Detailed Description of the Invention

In this detailed description, the preferred embodiments of the system facilitating position adjustment of the seismic braces protecting the rod hangers against earthquakes according to the invention will be explained in order for the subject matter to be better understood, without any limitations.

Fig. 1 is a front view showing the system facilitating position adjustment of the-seismic braces according to the invention. The rigid brace profile (20) is attached in the construction by means of the structural connection part (10). The connection between the rigid brace profile (20) and rod hanger (80) is provided by the length adjustment part (30), the intermediate connection part (40), and the rod connection part (50). The rigid brace profile (20) and rod hanger (80) are connected with 35-70° connection angle (70), thereby preventing the rod hanger (80) from swinging transversely or longitudinally with respect to the installation in case of earthquake.

In Fig. 3, length adjustment part fixing member (22) is seen. Length adjustment part fixing member (22) is preferably spring nut. Fig. 4 shows the views of the safety bolt (105), respectively showing before and after the bolt head is removed. The type of the safety bolt (150) is shear bolt.

Adjusting the seismic brace length (60) without cutting the brace profile (20) according to the need is provided by the length adjustment part (30), the intermediate connection part (40), and the rod connection part (50), which are located between the rod hanger (80) and the rigid brace profile (20). What is most important about this connection type is that the brace length (60) can be adjusted without any need for cutting the brace profile (20). In addition, the rigid brace profile (20) can be implemented even after the mounting of the rod hanger (80) is completed, thanks to the rod connection part (50).

The angle between central axes of the structural connection part fixing members (100), by which the structural connection part (10) is connected to the rigid brace profile (20), is arranged so as to minimize the loads created by the torque in the range of connection angle (70). Therefore, the geometry of the structural connection part (10) in itself is different from that of the prior art in terms of design. The properties of the parts (i.e. components) used in the system according to the invention are given below:

Structural Connection Part (10): The perspective views of the structural connection part (10) are given in Fig. 2. Provided on the structural connection part (10) are anchor hole (11) and fixing holes (12). The anchor hole (10) enables the structural connection part (10) to be fixed on the ceiling. The fixing holes (12), on the other hand, enables the brace profile (20) to be fixed in the structural connection part (10) by means of structural connection part fixing members (100), the fixing members selected here being bolts and nuts. The geometry of the structural connection part (10) is specially designed. The structural connection part fixing members (100) are designed in a way to minimize the load created by the moment referred to as "prying factor", for the given connection range. The structural connection part (10) is adjusted in the axis of structural connection part fixing members (100), chosen as bolts and nuts, i.e. in the bolt axis, and thus facilitating the mounting compatible with the inclination of the structure and connection angle (70).

Brace Profile (20): It is made of cold formed profile section, the so called "G profile", commonly used in the USA and all around the world. It withstands pressure and tensile forces. As the brace length (60) increases, the compressive strength decreases; however, tensile strength does not change. Therefore, the strength of the whole system is calculated and defined in accordance with the compressive strength by calculation methods defined by some regulations according to the length of this profile (20). It is directly connected to the structural connection part (10). The wall thickness of the profile (20) should not be more than 3 mm. The strength of the system is calculated taking all of the above factors into account.

Length Adjustment Part (30): The perspective views of the length adjustment part (30) are given in Fig. 7. The safety bolt fixing hole (31 ), intermediate connection part fixing holes (32), and additional safety extension (33) are formed on the length adjustment part (30). The function of the additional safety extension (33) is to guarantee the continuation of the fixation in the areas where the safety bolt (150) is deformed. An additional safety for the deformations likely to occur in safety bolt (150) is provided thanks to the tongue-shaped additional safety extension (33) entering into rigid brace profile (20) provided in the area where the length adjustment part (30) is connected to the intermediate connection part (40). The additional safety extension (33), i.e. the tongue, can be connected to the rigid brace profile (20) from the open end thereof; similarly, it can be connected thereto from the middle of the profile (20). This component facilitates the mounting process.

The length adjustment part (30) is fixed in the brace profile (20) by means of a flare nut or a safety bolt (i.e. shear blot) ( 50). When the diameter of the end of the conical head is 1 mm and the conical entrance angle is 90 degrees, fixation is performed with a torque of 25 Nm and by compression, for a brace profile (20) of 2.5 mm thickness. The flare nut or safety bolt (150) will cause a deformation in a profile body (20) of such torque and form a conical safety bolt bearing (21 ). Thus, the brace length (60) is fixed. Other means used in this connection are spring nut and hexagonal nut (120), which are frequently used in such profile (20) connections.

Intermediate Connection Part (40): The perspective views of the intermediate connection part (40) are given in Fig. 5. Formed on the intermediate connection part (40) are contact holes (41) and connection hole (42). The contact holes (41) allow to be in contact with the length adjustment part (30) whereas the connection hole (42) permits fixation to the rod connection part (50). The function of the intermediate connection part (40), which connects the length adjustment part (40) to the rod connection part (50), is to increase the distance between the brace profile (20) and the rod hanger (80). One of the functions of the intermediate connection part (40) is that it prevents the rod connection part from rotating around the connection member (130), by resting against the rod connection part (50). Moreover, upon being joined with the rod connection part (50), it acts like a closed cross- section, thereby achieving high resistance. In addition, as also mentioned before, a distance is created between the rigid brace profile (20) and the rod hanger (81 ) and the rigid brace profile (20) is thus enabled to be mounted without having to be cut.

Rod Connection Part (50): The rod connection part (50) is seen in Fig. 6. The upper, lower and short side edges of the rod connection part (50) are in the form of a rectangular prism. There are channels (51 ), through which the rod (81) is to be passed, in the upper edge and lower sections. The open ends of these channels (51 ) are reverse with respect to one another. In closed end of each channel (51 ), a cavity (52) is formed in such a size that the rod (81 ) will be located therein. The cavities (52) are in the same direction. Moreover, one fixing hole (53) for each one of the lower and upper edge sections is provided; and there is also a compression hole (54) in the area where said sections are joined.

Connection to the rigid brace profile (20) is provided by the length adjustment part (30) and intermediate connection part (40) of the rod hanger (80) (can be a hanger with a single rod (81)).

The rod connection part (50) is pushed till the end of the hole provided on the rod (81 ) from the open side thereof and rotated 90°, thereby enabling the rod (81 ) to be fitted in the channel (51 ) on the rod connection part (50). Compression bolt (140) is used for fixing the rod (81) in the hole (52) provided on the rod connection part (50). The compression hole (54) is provided at the end of the rod connection part (50). Such connection also enables the direction of the brace profile to be adjusted both longitudinally and transversely with respect to the installation. Further, both transverse and longitudinal seismic protection can be achieved at the same time by connecting two rigid brace profiles (20) successively in the rod (81 ) axis of the rod connection parts (50) with a 90° angle, when necessary.

The channel (51 ) and cavities (52) on the rod connection part (50) are in accordance with the rods (81) in the diameter range of M8, M10, and M12. However, they can be made suitable for the rods (81 ) ranging from M14 to M20 in size by opening holes, when desired. It is because the distance between the two twisted sections of the rod connection part (50) allows M20 rod (81 ) to pass therethrough. In addition, the rod connection part (50) can be arranged such that it will allow connection to the rods (81 ) of a diameter smaller than M8; however, hanging cannot be performed with the rods (81) smaller than M8 due to safety factors and as per regulations. Mounting of the system according to the invention, the properties and functions of the components of which are described above, is performed as follows:

First, the length adjustment part fixing member (22), i.e. the spring nut here, is fixed in the channel inside the rigid brace profile (20). The intermediate connection part (40) is connected to the length adjustment part (30) by means of connection angle axis fixing members (1 10), i.e. the bolts and nuts here. Then, it is overlapped with the hole on the fixing hole (31) and spring nut, i.e. on the length adjustment part fixing member (22), and is engaged loosely in the rigid brace profile (20) of the length adjustment part (30) by means of the shear bolt (150).

On the other hand, the rod connection part (50) is advanced until aligned with the rod (81 ) channels (51 ), from the short open end thereof and around the rod. Afterwards, the rod connection part (50) is rotated 90°. The compression member (140) is rotated and the rod (81) is made to be properly placed in the cavity (53). The nut on the rod (81) is rotated and the rod (81) is compressed downwards. Later, the intermediate connection part (40) is introduced into the hole inside the rod connection part (50) by aligning the connection hole (42) with the fixing holes (53). The connection member (130), i.e. the bolt here, is passed through the fixing holes (53) and connection hole (42) and compressed by means of the nut. Thus, mounting process is completed. After mounting is completed, adjustment of the brace length (60) is performed as follows: the shear bolt (150) is loosened and up and down movement of the length adjustment part (30) inside the movement channel (23) is provided. After adjusting the brace length (60), the safety (i.e. shear) bolt (150) is screwed until the head thereof is pulled apart and the length adjustment part fixing nut (120) is compressed.

The connection angle (70) can be adjusted as desired after mounting; and yet the connection angle of 35 to 70° is recommended.