TWI621760B - The hinged buckling restrained brace and method for installing. - Google Patents

Abstract

The utility model relates to a hinged buckling beam bracing, which is composed of a buckling beam and a shaft hole plate, and the frustum beam bracing is a single hinge hole rod member, and an axial end portion is provided with a fixed shaft hole. The other axial end portion has a cross section formed by a vertical joint of the vertical limb and the horizontal limb. The interval between the two vertical limbs is such that the thickness of the shaft hole plate is formed to form a groove, and the shaft hole plate is provided with a shaft hole and a shaft hole. The axial ends of the plate and the buckling beam bracing are connected in an interlaced manner, and the shaft hole plate is embedded in the groove between the two sets of vertical limbs, so that the shaft hole plate can be temporarily fixed to the buckling beam bracing in advance. The utility model has the function of adjusting the length of the axial expansion and contraction, and is fixed by welding after the positioning of the shaft hole plate is completed, and the assembly of the hinged buckling beam bracing with double hinge holes is completed.

Description

Articulated setback brace and its application installation method

The present invention relates to a hinged buckling beam brace; in particular, to a hinged buckling brace of a general building structure, which is embedded by a shaft hole plate with a shaft hole and a buckling beam brace The method is connected, so that the shaft hole plate can be temporarily fixed on the buckling beam bracing in advance and has the function of axial telescopic adjustment length. After being positioned, the welding is fixed and assembled, and the installation hinged buckling bundle diagonal support link can be solved. When the two points of the fixed length of the structure are fixed, the hinged shaft holes cannot be aligned, and the shaft cannot be inserted into the shaft hole.

The assembly accuracy of the structural frame of steel structure buildings comes from the manufacturing error of the rods, the assembly positioning error, the welding deformation, and the load deformation of the rods. Therefore, even if all the rods are perfectly produced according to the design drawing, no precision error is sent. When the site is assembled on site, if the construction is inaccurate or the positioning is in error, the structural member will still face the dilemma that cannot be assembled. If the bolt is locked, there will be a situation where the bolt cannot be inserted into the bolt hole. If it is welded, If it is a docking method, welding will be very difficult if the gap is too large, if it is a lap joint, because there is overlap and close distance The adjustment can be adjusted, it is easier to overcome the assembly length error, and the most difficult is the hinged rods at both ends, because the precision of the shaft and the shaft hole is higher than the precision of the bolt and the bolt hole. There is also a reserve of ±1.5mm that can be adjusted, but the shaft and shaft hole for the hinge are almost tightly matched to avoid sway. If the length is slightly wrong, the shaft cannot be inserted into the shaft hole to complete the installation.

As shown in Figure 1, the M453702 new patented pin-type frustration beam support device has been machined at the factory for the first time. Generally, the drilling process is completed at the plate stage. After assembly, it becomes a finished product. Of course, it can be assembled into a finished product. It is necessary to drill the end of the finished product in the factory, or to drill the hole at the construction site.

If you want to work on the structure at the site to match the actual measurement of the hole spacing on the site structure, you must process the pin hole. The site processing is easy to have poor dimensional accuracy and it is difficult to match the site processing machinery. The problem is that it is almost impossible to set up a large-scale processing machine on the site, and it can only be processed with light drilling equipment. Unlike the fixtures with processing platforms and auxiliary positioning in the factory, the support of the buckling bundle needs to be placed. Appropriate space and appropriate angle to install light drilling equipment, there are cranes on the construction site, but there is no crane in the factory, lifting and moving is not as convenient and safe in the factory, light mobile drilling equipment in the outdoor, in addition to being susceptible to weather In addition to delayed operation, the drilling speed is also inferior to that of large-scale drilling equipment in the factory, and the problem of the site where the cutting lubricant and metal cutting debris are contaminated on the site must be overcome, plus the frustration bundle manufacturing factory and the construction plant. Often different manufacturers, some construction plants have very poor management environment for the site, and they have to frustrate the manufacturing process at the factory. The drilling operation in the environment is likely to cause problems in the accuracy and quality of the machining.

When the hinged buckling beam bracing is to be installed on the building structure, if the spacing of the shaft holes at both ends has been fixed at a fixed distance, the center-to-center spacing of the diagonal holes at both ends of the diagonal line of the structural frame must be everywhere. Accurate measurement, the design of the data can only be used as a reference, but in the super high-rise building's super high position, the outdoor may face strong wind and heavy rain measurements, the risk is extremely high, and very time-consuming. Moreover, the spacing of the shaft holes at each end of the same type of the diagonal strut members is different, so the material management and control will be more complicated. If the same type of appearance is the same, if the number is not carefully checked, the workers are prone to occur. The problem of drilling the wrong part, or the problem of hanging the wrong part on site.

On-site processing at the construction site of building structures is a very cumbersome task, because the erection of on-site drilling machines and the cleaning of cutting lubricants and cutting iron chips are also labor-intensive, and the construction plants are less willing to use them in large quantities. The on-site processing method will only adopt this on-site processing method when it is really impossible to assemble and can't be used. The construction of domestic steel structure is based on the principle of on-site welding or bolt locking. This kind of work should be completed in the steel structure factory, avoiding the need to prepare mechanical equipment for drilling and processing, and after the processing.

In addition, there is also the problem of the quality of construction workers in the domestic construction factory. If the hole position cannot be aligned, it is possible to collect the money in time for the completion of the work, in the case of not reporting the on-site quality management engineer, or self-considered as long as the shaft Can insert Even if the shaft hole is ignorant when the assembly is completed, it can be directly reamed by the hand-held power tool or the flame cutting method. The appearance may not be noticeable after installation, but it will cause the structural member to be generated due to the gap in the future. The swaying situation, and the function of the buckling restraint is not as good as the design estimate.

As shown in Fig. 2, the hinged buckling beam bracing is to be installed in the diagonally opposite corners of the building structure frame. The spacing between the shaft holes has been fixed at a fixed distance. The shaft holes at both ends are in the factory according to the design drawing dimensions. The machining is completed, but when the length of the hole spacing is large when the site is installed, the hole of one end can not be aligned and fixed. The shaft will not be inserted into the shaft hole to complete the installation. Although the installation can be completed, the gap between the shaft hole and the shaft is too large, and it is impossible to stabilize the tension and the pressing force of the axial reversal without shaking, which will make the energy dissipation effect of the buckling bundle bracing less favorable.

If the actual shaft hole spacing length is measured in accordance with the site installation location, and the shaft hole drilling process is performed in the factory, the production process in the factory may be affected, and the factory needs to wait for the measurement length to confirm before drilling. The manufacturing time course is affected by the confirmation of the axial hole spacing. It is impossible to provide the finished product to the site for on-site installation and delay to the entire project.

If the factory first produces the setback brace, the finished product including the bundled parts is not easy to process the end shaft hole, because the machining of the shaft hole is flattened when the steel plate is plated. It is easy. If the finished product of the assembly has to be processed, the shape and shape of the finished product must be fixed and fixed compared with the single flat steel plate, and the volume of the finished product is larger than that of the single plate. Whether the industry space can be matched is also a problem. In addition, the finished product stacking is mostly waiting for shipment. If it is time to wait for the site to measure the hole distance data, it may need more space to stack up to prevent other finished products. The process of assembly.

The hinged buckling beam brace of the present invention adopts a fixed shaft hole for one axial end portion and a shaft hole plate with adjustable axial position for the double hinge function, and the hinged frustum restraint system is adopted. The diagonal bracing has the function of axially telescopic length, that is, the single-hinged hole buckling-bending diagonal bracing is matched with the shaft hole plate to become a buckling brace of the axial length adjustment function and the double hinge hole, which can solve the installation hinge When the buckling bundle is connected to the two points of the fixed length on the structure, the hinged shaft hole cannot be aligned, and the shaft cannot be inserted into the shaft hole.

The hinged buckling beam brace of the present invention is characterized in that the thickness and size of the shaft hole plate are not limited, and the material thickness of the buckling brace is not required, and the buckling beam is not caused by the size of the shaft hole plate. When the material of the bracing material is cut, there is a waste of excess material. The shaft hole plate can be designed to have the required thickness and size after considering the hole opening at the shaft hole, so the design is not limited, the material is saved during manufacture, and the assembly can be Inter-embedded method for rapid positioning and assembly, and the relative position of the axial direction can be adjusted, that is, the axial length of the rod can be adjusted, which can tolerate large assembly errors, requires low assembly precision, can be welded and fixed after factory adjustment, or When it is installed on site, it is adjusted and then fixed.

The shaft hole plate of the hinged buckling beam bracing of the invention can be temporarily fixed in advance The utility model has the function of adjusting the length of the axial expansion and contraction on the buckling brace, and after the axial hole of the shaft hole plate is aligned and positioned, the welding is fixed on the contact edge of the close contact between the shaft hole plate and the buckling beam brace. The assembly of the hinged buckling beam bracing is completed. If the field assembly length error is too large and the shaft hole is not easy to be aligned, the assembly can be completed with the field adjustment length.

10‧‧‧Hinged buckling beam bracing

20‧‧‧Settlement

21‧‧‧ vertical limbs

22‧‧‧ horizontal limbs

23‧‧‧ Fixed shaft hole (frustration bundle)

30‧‧‧Axis plate

31‧‧‧Axis hole (shaft hole plate)

32‧‧‧ Fisheye

40‧‧‧Inlay (shaft hole plate)

41‧‧‧Clots (frustration bundles)

50‧‧‧Connecting plate

51‧‧‧ shaft

70‧‧‧ long hole or enlarged hole

71‧‧‧ Temporary fixing bolts

80‧‧‧Structural beam and column members

100‧‧‧M453702 pin-type frustration beam support device

110‧‧‧Knowledge of the hinged buckling beam

Fig. 1. The pinned frustum beam support device of the conventional M453702

Fig. 2. Description of the misalignment of the shaft hole of the hinged buckling beam

Figure 3. The preferred version of the articulated setback brace is 1-1

Figure 4. The preferred version of the articulated setback brace is 1-2

Figure 5. The preferred version of the articulated setback brace is 2-1

Figure 6. The preferred version of the articulated setback brace is 2-2

Figure 7. The preferred version of the articulated setback brace is 3-1

Figure 8. The preferred version of the articulated setback brace is 3-2

Figure 9. Preferred application of the hinged buckling beam bracing Example 1

Figure 10. Preferred application of the hinged buckling beam bracing Example 2

Figure 11. A preferred version of the fisheye hole in the shaft plate

As shown in Figures 3 and 4, the preferred version of the hinged buckling bracing (10) is a type of axial force type energy dissipating rod for structural construction. Axial or compressive deformation occurs during tension or pressure to achieve energy dissipation. The buckling beam bracing (20) is a single hinged hole member, and the axial core of the buckling beam bracing (20) For the plate, one of the axial ends of the buckling beam bracing (20) is provided with a fixed shaft hole (23), the cross-sectional shape of which is a cross shape, and the shaft hole (23) can be a setback The plate on the support (20) is directly processed, or is additionally welded with a plate having a shaft hole, and the other axial end of the buckling bundle (20) has a vertical limb (21) and The horizontal limbs (22) are perpendicularly joined to each other, and the two sets of vertical limbs (21) are respectively disposed on the lower plane position of the horizontal limbs (22), and the axial orifice plates (30) are held between the two sets of vertical limbs (21). The interval between thicknesses.

The shaft hole plate (30) is a flat plate structure, and the shaft hole plate (30) is provided with a shaft hole (31), the shaft The orifice plate (30) is provided with a groove (40) for matching the thickness of the horizontal limb (22) of the buckling bundle (20) to engage with the horizontal limb (22). The shaft hole plate (30) and the horizontal limbs (22) of the buckling beam bracing (20) are joined in an interlaced manner, and the shaft hole plate (30) is embedded in the interval between the two sets of vertical limbs (21), the shaft The surface of the orifice plate (30) can be close to the surface of the vertical limb (21) of the buckling restraint (20), and the axial orifice plate (30) can simultaneously be perpendicular to the limb of the buckling restraint (20) ( 21) Producing close contact with the horizontal limb (22), so that the shaft hole plate (30) can be temporarily fixed to the buckling beam bracing (20) in advance and has the function of axial telescopic adjustment length, and the shaft hole plate (30) After positioning, the shaft hole plate (30) is welded and fixed to the contact edge of the vertical limb (21) of the buckling beam brace (20) and the horizontal limb (22), and the hinge with the double hinge hole is completed. Assembly of the buckling braces (10).

The vertical limb (21) of the brace support (20), or the shaft hole plate (30) is provided with a long hole or an enlarged hole (70) for the bolt (71) to be connected and then locked on the plate. Or locking with the nut, temporarily fixing the buckling beam bracing (20) and the shaft hole plate (30), and loosening the bolt (71) enables the hinged buckling beam bracing (10) to have axial expansion and contraction adjustment The function of the length, after positioning and then locking, the welding of the shaft hole plate (30) is fixed.

As shown in Figures 5 and 6, another preferred version of the hinged buckling brace (10) is provided with a matching shaft plate for the horizontal limb (22) of the buckling brace (20). (30) The thickness of the groove (41) and the shaft hole plate (30) are connected in an interlaced manner, and the shaft hole plate (30) is embedded in the interval between the two sets of vertical limbs (21), the shaft hole plate (30) The vertical deflection direction and the vertical rotation direction are not limited with respect to the buckling beam bracing (20), so the buckling beam bracing (20) can be inserted into the shaft hole plate (30) by oblique insertion.

As shown in Figures 7 and 8, the hinged buckling beam bracing (10) In a preferred embodiment, one of the horizontal limbs (22) of the buckling beam bracing (20) is provided with three plates of a width of two sets of vertical limbs (21) and a set of axial orifice plates (30). The axial opening of the total thickness. The alignment of the two sets of vertical limbs (21) is kept parallel and the horizontal limbs (22) are combined in a staggered contact and then fixed by welding. The two sets of vertical limbs (21) are formed with an axial interval formed by two vertical façades. The groove (41) of the thickness of the orifice plate (30) is insertable into the shaft hole plate (30), and is adjacent to the vertical limb (21) of the shaft hole plate (30) and the buckling bundle bracing (20). The contact edge is welded and fixed, and the assembly of the hinged buckling brace (10) with double hinge holes is completed.

As shown in Fig. 9, a preferred application embodiment of the hinged buckling beam brace (10) is placed between the two connecting plates (50) provided with the shaft holes. The shaft (51) is inserted into the connecting plate (50) and the shaft hole of the hinged buckling beam bracing (10) is fixed, and the hinged buckling beam bracing (10) and the structural beam-column rod member (80) are completed. ) The link is assembled.

The axial ends of the hinged buckling restraint (10) can be hingedly coupled to the two different members (80) of the structure, respectively, when relative displacement occurs between the two different members (80) of the structure. It can only bear the load of the axial force, that is, the two force rods that can only withstand the tension and compression, because the end hinge relationship does not bear the bending moment force of the end corner deformation.

As shown in Fig. 10, another preferred embodiment of the hinged buckling beam bracing (10) is installed in a different manner. When the hinged buckling beam is installed on the structure, the first frustration is adopted. The fixed shaft hole (23) of the bending beam bracing (20) is mounted on one end connecting plate of the structural rod member, and the shaft hole of the shaft hole plate (30) is first installed on the other end connecting plate of the structural rod member. Upper shaft hole plate (30) can be temporarily fixed by temporary fixing device Fixing bolts (71) without rotation, and then connecting the shaft hole plate (30) and the buckling beam bracing (20) in an interlaced manner, as shown in the figure, the buckling beam bracing (20) is The upper rotation is inserted obliquely into the shaft hole plate (30), and then welded and fixed, the assembly of the hinged buckling beam bracing (10) is completed, the temporary fixing device is released, and the installation of the hinged buckling beam bracing (10) is completed.

As shown in Fig. 11, the shaft hole of the shaft hole plate (30) is a 360-degree rotating fisheye hole (32) structure, which can be used to articulate the buckling beam when the structural member is horizontally and horizontally deformed. It also has the function of articulated rotation in the horizontal direction, which can avoid the effect of the lateral bending moment force on the buckling beam restraint and affect the original estimated energy dissipation effect.

Claims (6)

A hinged buckling beam bracing comprises: a buckling beam bracing and a shaft hole plate; a buckling beam bracing is an axial force type energy dissipating rod for structural building, and the frustum beam is inclined The rod of the hinge hole, the axial core of the buckling beam bracing is composed of a plate, and one of the axial ends of the buckling beam bracing is provided with a fixed shaft hole, and the bending beam is The other axial end of the diagonal bracing is composed of two sets of vertical limbs and one set of horizontal limbs, and two sets of vertical limbs are respectively disposed above the horizontal plane of the horizontal limb, and the thickness of the shaft hole plate is maintained between the two sets of vertical limbs. The shaft hole plate is a flat plate structure, and the shaft hole plate is provided with a shaft hole; wherein: the axial hole plate and the axial end portion of the buckling beam bracing are connected in an interlaced manner, and the shaft hole plate is embedded in two sets of vertical limbs In the interval between the holes, the surface of the shaft plate can be close to the surface of the vertical limb of the end of the buckling beam, and the contact edge of the shaft plate and the end of the buckling beam is welded and fixed. Assembly of an articulated setback brace with double hinged holes. The hinged buckling bundle bracing according to claim 1, wherein the shaft hole plate is provided with a horizontal groove thickness matching groove of the buckling bundle to support the horizontal limb in an interlaced manner. The hinged buckling beam bracing according to claim 1, wherein the horizontal limb of the buckling beam bracing is provided with a groove matching the thickness of the shaft hole plate and the shaft hole plate are connected in an interlaced manner. The hinged buckling beam bracing according to the first aspect of the patent application, wherein the vertical limb of the buckling bundle is supported, or the shaft hole plate is further provided with a long hole or an enlarged hole for the bolt to be connected and then locked. Fixing on the plate or locking with the nut, the buckling beam is braced and the shaft plate is temporarily fixed, so that the hinged buckling brace has the function of axially telescopically adjusting the length. A method for installing an articulated setback brace, such as the hinged buckling brace according to claim 1, wherein the hinged buckling brace is mounted on the structure When the shaft hole plate is not firstly fixed with the buckling bundle diagonal support, the fixed shaft hole of the buckling beam bracing is firstly installed on one end of the structural rod member, and the shaft hole of the shaft hole plate is first installed. The connecting plate is connected to the other end of the structural member, and the axial hole plate and the buckling beam bracing are connected and fixed in an interlaced manner to complete the installation of the hinged buckling beam bracing. The hinged buckling beam brace according to claim 1, wherein the shaft hole of the shaft hole plate or the fixed shaft hole of the buckling beam bracing is a 360-degree rotating fish eye hole structure.