JP2537937B2 - Tightening structure of steel frame building - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting device for a unit building.

2. Description of the Related Art In conventional high-rise buildings, structural tolerances are strict in a normal high-rise building because the structure and arrangement of components on each floor are related to the shape and position of various parts on the immediately preceding assembly floor. . Field survey (field meas
urement) is required continuously, especially for internal structures that must rely on the actual finished state as built. Modifications to maintain the specified structural tolerances are typically designed to be included in the articulating structure of the building. For example, steel structure bolted connections have oversized or slotted holes to accommodate dimensional tolerances by adjusting the position of the nuts and bolts.

Computer analysis in building design can predict how a building will respond to external forces such as earthquakes, which allows the building design to be modified to reduce the effects of such forces. became. Motion in a normal building is difficult to predict. This is because the position of the bolted connections can be changed to produce virtually infinite combinations. Therefore, computer analysis is difficult because the values for friction and stress cannot be accurately determined.

Unit buildings such as those described in U.S. Pat.No. 3,758,998 issued to Oris et al. And U.S. Pat. To Since the joints on each floor can be inspected at the factory, less field measurements are required and changes can be made even more conveniently.

A connecting device for a concrete building using a tensioned connecting rod is shown in U.S. Pat. No. 3,782,061 to Minutri and Rokke. A plurality of in-line connecting rods are connected by nuts through a conduit in a panel of a concrete building.

SUMMARY OF THE INVENTION The present invention provides an improved coupling device particularly suitable for unit steel building construction. The unit building means a building of a type in which a plurality of basic building units are combined to form a building as a whole.

The present invention is an apparatus for building a building that uses a conical connector for aligning rods that connect structural members of the building, sometimes referred to as a MODULOC system. A conical connector is a rigid device as a rigid body of circular cross section with an axial bore. This connector consists of flat top and bottom surfaces that are perpendicular to the axis of the hole, a ring-shaped flange between these top and bottom surfaces, and each sloped surface between the top and bottom flanges and between the bottom and flanges. And as it approaches the flange,
The connector has a conical shape in which the circumference of the connector formed by the inclined surface increases. The beveled surface of the connector fits precisely into the recess in the structural member of the building. A tensioning mechanism that penetrates the hole in the connector provides a connecting force to the structural member to hold the connector.

In a preferred embodiment, the structural member of the building is a steel building block. A large number of tubes are arranged vertically in each basic unit, and rods penetrate these tubes. These rods are connected by a connector, washer, and a threaded connecting nut that mates with the threaded ends of the two connecting rods, one of these connecting rods connecting the washer and the connector. Penetrate. Each tube has metal plates attached to its top and bottom through which a rod extends, each metal plate defining a recess for engaging one end of the connector. There is.

This coupling device acts as a shock absorber for the building.
The inclined surface of the connector converts the transverse shear force applied to the building into a tensile force along the vertical steel rod,
Therefore, the allowable value of the building against external force is increased. The connector thus prevents shear forces on the vertical rods. The presence of the space between the recess of the structural member and the inclined surface of the connector near the flange facilitates the conversion of shear forces into vertical tension forces. This space is
Allowing the structural member to slide slightly laterally, the beveled surface of the connector forces the structural member axially, converting horizontal motion to vertical motion. This space also allows unhindered horizontal movement and prevents the vertical rods from being directly subjected to shear forces.

The connector can be molded by sintered powder metal processing, which can significantly reduce the manufacturing costs associated with machining. Sintered metal treatment allows various properties of the connector to be obtained that would otherwise be difficult to achieve (eg, corrosion resistant metals can be easily mixed).

Double-cone connectors are used to provide a secure interconnection to adjacent building blocks of a building. The double-cone connector essentially connects the flanges of the two connectors into a single flange that surrounds the two conical protrusions on each side. This single flange provides transverse force continuity between the elementary units by serving as a transverse force transmitter. Therefore, the pulling forces transmitted to the vertical rods within adjacent elementary units will be substantially the same, which in effect eliminates relative movement between the elementary units. Optionally, three, four or more connectors can be combined, such as at the corners of several elementary units or at the intersection of a building corridor.

The invention also makes it possible to prestress each floor in a simple manner by adjusting the connecting nuts as each floor is built, which is a rod extending through each floor. In addition, a plurality of basic units are integrally held so that sufficient vertical tension is applied to the unit. At some intermediate floor, sequentially and in particular after the top floor has been added, the entire connecting rod can be further tensioned to obtain the desired tension value. This pulls the connecting nut adjacent each lower level connector away from its washer and floats as the rod extends. Therefore, the rod effectively becomes a single rod body, and further exhibits excellent shock absorbing characteristics.

The tension in either connector is identified by computer analysis and effectively tunes to the building to counter destructive single string vibrations. This allows the unique connector geometry and dimensional integrity of the structural member assembly to be accurate in predicting response to external forces, which was not possible with conventional building techniques.

The basic unit design improves accurate computer analysis of buildings. The present invention combines molded connectors into basic unit floors that can be individually adjusted in the field by connecting nuts, thus eliminating the need for tight structural tolerances and reducing construction costs.

The dimensional integrity and predictable response to external forces made possible by the modulo device make it ideally suited to the complete design of structures by computer graphics.

 Examples of the present invention will be described below.

Embodiment As shown in FIG. 1, the conical connector 10 has a first
Mounted between a tube 12 of a basic unit (not shown) and a tube 14 of a second basic unit (not shown). Attached to the end of the tube 12 is a metal plate 16, which is formed with a recess 17 which engages one end of the connector 10.
A metal plate 18 is attached to the end of the metal plate, and the metal plate 18 is formed with a recess 19 that engages with the other end of the connector 10. Steel connecting rod 20 penetrates pipe 14 and connector 10
It extends within 12. Washer 22 on top of rod 20
The washer 22 is arranged so that the washer 22 is flush with the connector 10 after passing through. Hexagonal connection nut
24 is screwed onto the top end of rod 20 and washer 22
Is on the same plane as. The connecting nut 24 is a rod
It can be tightened to give a predetermined amount of stress to 20. The second rod after the second basic unit (not shown) is placed on top of the first basic unit (not shown)
26 extends through the tube 14 of the second basic unit to connect nut
It is screwed to the upper end of 24.

The top of the connector 10 has a flat surface 28, a beveled surface 30, and a peripheral flange 32. The bottom of connector 10 is similar to the top. The lateral motion of the building imparts shear forces to the connector. The sloping surface 30 of the connector converts the shear force into an axial extension force which causes compression of the tubes 12,14,
A tensile force is applied to the rods 20 and 26. The rods 20 and 26 are given a large pre-tension and can absorb the tensile force.

Figure 2B shows connector 10 located on the middle floor of the building.
FIG. Tubes 12 and 14 are connected to plates 16 and 18, respectively, which are also connected to connector 10.

The plate 16 is welded to the pipe 12 and attached to the metal ceiling plate 36 of one basic unit on one floor of the building. The plate 18 is welded to the pipe 14 and to a metal floor 38, which is the floor of the unit building on another floor of the building.

After the connecting nut 24 is threaded to the rod 20 and provides sufficient tension to build the building, the pipe 14 and floor 38
The basic unit including the pipe 12 and the ceiling plate 36 is disposed on the top of the basic unit. Next, the rod 26 is inserted into the pipe 14 and screwed and attached to the connecting nut 24. This procedure is repeated for each floor.

At the desired intermediate floor, in particular after the top floor has been added, the whole rods 20,26 can be further tensioned in sequence to obtain the desired tensile force value. The connecting nut 24 on each lower floor is pulled away from the washer 22 by further extension of the rods 20,26. In this way, the connecting nut 24 floats, and the rods 20 and 26 exert a single rod effect having a better shock absorbing characteristic. This also virtually eliminates eccentric forces on the connecting nut 24.

Transverse shear forces are transmitted to the connector 10 via the floor 38 and plate 18 and through the ceiling plate 36 and plate 16 to the connector 10.
It is understood that it will be transmitted to. This causes the connector 10 to convert shear forces into axial forces along the connecting rods including rods 20 and 26 as previously described. Multiple spaces 39 between the plates 16 and 18 and the connector 10 face the connector 10
Allow some horizontal movement. This horizontal movement is connector 10
It is converted into a vertical motion by the interaction of the inclined surface 30 of and the corresponding surfaces of the plates 16 and 18. Such reorientation of motion is effective in converting shear forces into tensile forces along rods 20,26.

FIG. 2A shows the connection of the bottom connecting rod 40 to the foundation 42. The rod 40 extends from the bottom of a first floor tube (not shown) and is threadedly connected to the anchor cone 44. The anchor cone 44 is shaped to fit into a recess in the bottom plate (not shown) of the first floor tube in the condition shown in FIG. The anchor cones 44 are welded to a continuous metal plate 45 of sufficient length to secure a number of these anchor cones 44. The rod 40 can extend through the plate 45 and be secured by the nut 46. The plate 45 is welded to the pair of reinforcing bars 47. Reinforcing bar 47 is plate 45
Is looped through a vertical reinforcing bar 48 between the connections to. An additional stiffening bar 49 loops through the bar 48 to provide additional structural integrity.

FIG. 2C shows the connection of the top rod 52 to the top of the pipe 54 on the top floor of the building. Connector 10, washer
There are 22 and a connecting nut 24, which are connected in the state as shown in FIGS. 1 and 2B. A second connecting nut 56 is screwed to the end of the rod 52. The upper end of connector 10 is engaged by a disk 58 held in place by a sleeve 60. The sleeve 60 is threadedly attached to the sleeve tube 62 and the cap 64 is threadably attached to the top of the sleeve tube 62. Calibrated ram (c
After adjusting the tension of the rod 52 by means of an alibrated ram, the sleeve tube 62 and the cap 64 are mounted so as to surround and protect the upper end of the rod 52. As a result, the sleeve pipe 62 and the cap 64 are enclosed or embedded in the plate material 66 of the concrete roof.

3 and 4 show a preferred embodiment of the double cone connector 68. Connector 68 is a single flange
It has two conical sections 70, 72 surrounded by 74.
FIG. 4 shows the connector 68 in place between the adjacent base units 76, 78 on the left and the adjacent base units 80, 82 on the right. Connection nut 24, washer 22
And the use of rods 20,26 is the same as shown in Figure 2B. There is a space 84 between the basic units 76, 78 and the basic units 80, 82. It can be seen that the flange 74 of the connector 68 transfers shear between the basic units 76,78 and the basic units 80,82. These shear forces are converted into tensile forces along the rods 20,26 and substantially the same forces are transmitted to the connector 68 by the conical portions 70,72. Therefore, the basic unit field 7
The relative motion between 6,78 and the basic units 80,82 is significantly reduced.

Also, a triple conical connector or a quadruple conical connector can be used for the connection portion at the corner of the basic unit or the edge of the corridor. The additional conical portion can be provided by simply extending the flanges so that the flanges of some connectors are effectively joined to form a single continuous flange.

The use of the coupling device of the present invention has many advantages, including using it to easily add or dismantle (without destroying) existing buildings.

Although the present invention has been shown and described with reference to the preferred embodiments, those skilled in the art can make various changes in shape and detail without departing from the spirit and scope of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a preferred embodiment of a connecting device for an intermediate floor of a building.

2A through 2C are partial cross-sectional views of a preferred embodiment of a connecting device for the top floor, middle floor and bottom floor of a building, respectively.

FIG. 3 is a perspective view of the preferred embodiment of the double cone connector.

FIG. 4 is a cross-sectional view of a preferred embodiment of a double cone connector on the middle floor of a building.

10: Conical connector, 12, 14: Tube, 16: Plate, 17: Recess, 18:
Metal plate, 20: connecting rod, 22: washer, 24: connecting nut, 26: connecting rod, 28: flat surface, 30: inclined surface, 32: flange, 36: ceiling plate, 38: floor, 40: rod, 45 : Metal plate, 52: Rod, 54: Pipe, 56: Connection nut, 58: Disc, 60: Sleeve, 62: Sleeve pipe, 64: Cap, 66: Plate, 68: Connector, 70, 72: Conical part, 76 , 78: Basic unit (module)

Claims (10)

(57) [Claims] 1. A tightening structure for a steel building for tightening the structural members, comprising a plurality of connectors, a plurality of rods, a plurality of connecting nuts, and a plurality of structural members of the building, The connector is a rigid connector as a rigid body having a circular cross section, each of which has a hole in an axial direction and has a flat top surface and a bottom surface in a direction perpendicular to the axis of the hole. Has a ring-shaped flange at an intermediate position, a first inclined surface extends from the top surface toward the flange, and a second inclined surface extends from the bottom surface toward the flange. The circumference of the connector defined by the sloping surface increases as it approaches the flange, a first vertical surface extends from the first sloping surface toward the flange, and a second vertical surface extends from the second sloping surface to the flange. A second vertical surface extends toward and the flange has an axial dimension that is less than the distance from the top surface to the flange, and the rod has a threaded first end. A threaded second end, the first end of each rod passing through the hole in the connector, the connecting nuts each positioned adjacent the connector A first end of the rod and a threaded through-hole for receiving the second end of another rod, the plurality of structural members being spaced apart from each other,
Each structural member has an assembling portion, the assembling portion being shaped to mate with a portion of the connector extending outwardly from one surface of the flange. Defining a recess in the section,
Each of the assembling parts is one of the inclined surfaces of the connector.
Two complementary sloping surfaces and one of the vertical surfaces of the connector that is continuous with the sloping surface of the assembly portion and has a complementary vertical surface, the vertical surface of the assembly portion being the vertical surface of the connector. A gap is formed at a position deviated from the surface, so that when a horizontal force is applied, the inclined surface of the structural member can slide along the inclined surface of the connector, and the rod for tightening is provided with a plurality of rods for tightening. Extending through the structural member, the plurality of connecting nuts and the plurality of connectors to align the structural members with each other;
A tightening structure of a steel frame building for tightening a plurality of structural members to each other. 2. The tightening structure for a steel building according to claim 1, wherein the structural member includes a plurality of tubes surrounding the rod. 3. The steel frame building according to claim 1, further comprising a plurality of washers respectively disposed between the connector and the connection nut, wherein the rod passes through each washer. Tightening structure. 4. The tightening structure for a steel building according to claim 2, wherein each of the pipes is connected to one of basic units of the unit building. 5. A steel building according to claim 2 having a second connecting nut screwed to said first end of said rod extending through the top of said uppermost tube. Tightening structure for objects. 6. A plurality of metal plates, each metal plate being attached to an end of said tube, each metal plate defining one of said recesses in each tube. Tightening structure of steel frame building described in paragraph. 7. The method according to claim 2, further comprising a plurality of metal ceiling plates, wherein the ceiling plates are attached to the top end of the pipe and the metal plate attached to the top of the pipe. The tightening structure for steel building described in. 8. A steel frame according to claim 1 wherein at least two of said connectors are joined to said flange in the same plane, said joined flanges forming a continuous single flange. Tightening structure for buildings. 9. A plurality of connectors, a plurality of rods, a plurality of hexagonal connection nuts, a plurality of washers, a plurality of pipes, a plurality of metal plates, a second connection nut, a sleeve pipe, and a recess. A base having a point, a conical anchor, and a platform attached to the bottom of the conical anchor;
A steel building structure for fastening structural members of a building to each other having a plurality of elongated members for attaching the platform to the bottom of the recess of the foundation, a plurality of metal ceiling plates, and a plurality of metal floors. In the tightening structure, the connector is a rigid connector as a rigid body having a circular cross section, each having a hole in an axial direction, and having a flat top surface and a bottom surface in a direction perpendicular to the axis of the hole, A ring-shaped flange is provided at an intermediate position between the top surface and the bottom surface, a first inclined surface extends from the top surface toward the flange, and a second inclined surface extends from the bottom surface toward the flange. And the circumference of the connector defined by the two inclined surfaces increases as it approaches the flange, and a first vertical surface extends from the first inclined surface toward the flange; A second vertical surface extends from the inclined surface toward the flange, the flange has an axial dimension that is less than the distance from the top surface to the flange, and the rod is threaded A first end and a threaded second end, the first end of each rod passing through the hole in the connector, and the hexagonal coupling nuts respectively adjacent the connector. Positioned, having a threaded through-hole for receiving a first end of one rod and a second end of another rod, the washer having the rod extending therethrough, the connector and the hexagonal connection nut. Respectively, the tubes are arranged in a row and spaced apart from each other,
The rod for connection extends through the pipe, the connection nut, the connector, and the washer, each pipe being a part of a basic unit of a unit building; A plate having mounting portions each attached to an end of the tube and defining a recessed portion for mating with a portion extending outwardly from one surface of the flange; A position at which the mounting portion is offset from a vertical surface of the connector, which is complementary to one of the inclined surfaces of the connector, and which is continuous with the inclined surface and complementary to one of the vertical surfaces of the connector. And a vertical surface at, a gap is formed by the deviation, and the inclined surface of the metal plate can slide along the inclined surface of the connector when a horizontal force is applied, The second connecting nut is located at the top. Is attached by threaded engagement to a first end of the rod extending through the top of the tube, and the sleeve tube is connected to the first end of the rod that extends through the top of the tube at the top. One end is surrounded by a cap mounted on the top of the sleeve tube by threaded engagement, the conical anchor extending through the bottom of the tube at the bottom of the end of the rod. Attached by screw engagement to and having an upwardly facing surface of the same shape as the upper half of the connector, the metal ceiling plates each forming part of a basic unit of a unit building, Attached to metal plates at the top end and at the top of the pipe, the metal floors each forming part of a basic unit of a unit building, the bottom end of the pipe and the bottom of the pipe. Multiple structures attached to the metal plate of Tightening structure of steel frame buildings for tightening the wood each other. 10. A plurality of connectors, a plurality of rods,
In a tightening structure of a steel frame building for tightening the structural members to each other, comprising a plurality of connecting nuts and a plurality of structural members of the building, the connector is a rigid connector as a rigid body having a circular cross section, , Each has an axial hole, has a flat top surface and a bottom surface in a direction perpendicular to the axis of the hole, and has a ring-shaped flange at an intermediate position between the top surface and the bottom surface. A first inclined surface extends from the surface toward the flange, a second inclined surface extends from the bottom surface toward the flange, and the circumference of the connector defined by the both inclined surfaces approaches the flange. The first vertical surface extends from the first inclined surface toward the flange, the second vertical surface extends from the second inclined surface toward the flange, and the flange extends Has an axial dimension that is less than the distance from the top surface to the flange, the sloping surface being substantially relative to the flange.
The rod has an angle of 45 degrees, the rod has a threaded first end and a threaded second end, the first end of each rod being the hole of the connector. The connecting nuts are each positioned adjacent to the connector and have through screw holes for receiving a first end of one rod and a second end of another rod; The structural members are spaced from each other,
Each structural member has an assembling portion, the assembling portion being shaped to mate with a portion of the connector extending outwardly from one surface of the flange. Defining a recess in the section,
Each of the assembling parts is one of the inclined surfaces of the connector.
And a complementary vertical surface that is continuous with the inclined surface of the mounting portion and is complementary to one of the vertical surfaces of the connector, the vertical surface of the mounting portion being the vertical surface of the connector. A gap is formed at a position deviated from the surface, so that when a horizontal force is applied, the inclined surface of the structural member can slide along the inclined surface of the connector, and the rod for tightening is provided with a plurality of rods for tightening. Extending through the structural member, the plurality of connecting nuts and the plurality of connectors to align the structural members with each other;
A tightening structure of a steel frame building for tightening a plurality of structural members to each other.