CN205012471U - Position adjustable buckling restrained brace round pin axle connected node - Google Patents

Abstract

In order to solve the problem of difficult construction and installation of the traditional anti-buckling support pin shaft connection node, the utility model further proposes an anti-buckling support pin shaft connection node with simple structure, adjustable position, and convenient construction, installation and positioning. The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: a position-adjustable anti-buckling support pin shaft connection node, the connection node includes a support node, a gusset plate, a pin shaft, a positioning ring, and a limit ring and connecting welds.

Description

A Position-Adjustable Buckling-Resistant Support Pin Shaft Connection Node

technical field

The utility model relates to a position-adjustable anti-buckling support pin shaft connection node, which belongs to the field of anti-seismic building structures.

Background technique

The anti-buckling brace (Fig. 1) is a shock-absorbing device for building structures that uses the plastic deformation of steel in tension and compression to dissipate earthquake energy. In general (Fig. 2~Fig. 7), pins, bolts or welding can be used to connect the anti-buckling support and the structure. Previous studies have shown that compared with bolted and welded connections, the pin connection (Fig. 2, Fig. 3) has the advantages of simple connection structure, short connection length, less steel consumption, good seismic performance and out-of-plane stability, and beautiful appearance. However, the application of pin-shaft connections in actual engineering of buckling-resistant braces is relatively seldom, mainly because of the difficulties in construction and installation caused by the traditional pin-shaft connection structure. Generally speaking, in order to ensure the anti-seismic performance of buckling-resistant braces, the diameter of the pin hole at the end of the brace and the gusset plate is only allowed to be 0.5-1mm larger than the diameter of the pin shaft, and there are inevitably errors in the construction and installation of building structures (especially concrete structures ), so such a small allowable installation gap tends to make it difficult to install the support between the gusset plates of the actual structure, which puts forward very high requirements for construction technology and invisibly increases the construction and installation costs of the support. This technical problem has become an obstacle to pinning The application of shaft connection to buckling-resistant braces is a major obstacle in practical engineering.

Utility model content

In order to solve the problem of difficult construction and installation of the traditional anti-buckling support pin shaft connection node, the utility model further proposes an anti-buckling support pin shaft connection node with simple structure, adjustable position, and convenient construction, installation and positioning.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: an adjustable anti-buckling support pin shaft connection node, the connection node includes a support node, a gusset plate, a pin shaft, a positioning ring, and a limit ring and connecting welds.

The support node is composed of two steel plates arranged in parallel. There is a gap between the steel plates. A slot hole is arranged at the center line of the plate. The diameter of the slot hole is larger than the pin shaft (about 2-5mm larger), and the length of the slot hole is The length direction of the slot hole is consistent with the direction of the support axis; the gusset plate is composed of a steel plate, which is perpendicular to the outer surface of the beam-column flange of the structure and fixed by welding. The geometric shape of the gusset plate consists of two vertical side, two horizontal sides and a hypotenuse, on the perpendicular line of the hypotenuse there is a round hole (0.1-0.3mm larger than the pin diameter is appropriate); the gusset plate is inserted in the support node between the two steel plates, and make the round hole of the support node consistent with the slot hole of the gusset plate; the two ends of the pin are provided with threads of a certain length, and the pin shaft passes through the slot hole of the gusset plate and the round hole of the support node at the same time Connect, and ensure that the length of the pin shaft protruding from both sides of the support node is the same; there is a round hole in the middle of the positioning ring, and the diameter of the round hole is larger than the diameter of the pin shaft (0.1-0.3mm larger), respectively. Both sides of the shaft are nested and tightly attached to the outer surface of the support node, and are connected to the support node through fillet welding; there is a round hole in the middle of the limit ring, and a hole corresponding to the diameter of the pin shaft and the thread is provided in the hole. Matching internal threads, a pair of horizontal planes are provided on the upper and lower surfaces of the limiting ring to facilitate rotation, which are respectively inserted and tightened from both sides of the pin shaft until the limiting ring is tightly attached to the surface of the supporting node.

The utility model has the following beneficial effects: the utility model has the advantages of simple connection structure, simple installation and positioning and construction, direct and clear force transmission, good out-of-plane stability and seismic performance. The advantages of the utility model are embodied in the following aspects:

1. The installation error between the upper and lower gusset plates can be adjusted by opening long slot holes at the support nodes, which is convenient for the installation of the pin shaft;

2. The positioning ring method with a round hole can be used to reduce the actual gap between the pin shaft and the supporting node;

3. The positioning ring and the supporting node are welded, the force of the pin shaft on the positioning ring can be directly transmitted to the supporting node through the weld, the force transmission is direct and clear, the bearing capacity is high, the out-of-plane stability and the seismic performance are good .

Description of drawings

Figure 1 is a typical structural diagram of buckling-resistant braces; Figures 2 to 7 are structural diagrams of connection nodes between three typical buckling-resistant braces and structures. A-A sectional view, Fig. 4 is a buckling-resistant bracing welded joint, Fig. 5 is a B-B sectional view of Fig. 4, Fig. 6 is a buckling-resistant bracing bolted joint, Fig. 7 is a C-C sectional view of Fig. 6; Fig. 8 to Fig. 11 are Structural diagram of the gusset plate and its supporting pin shaft, in which Fig. 8 is the structural diagram of the gusset plate, Fig. 9 is the right side view of Fig. 8, Fig. 10 is the structural diagram of the pin shaft, and Fig. 11 is the D-D sectional view of Fig. 10; Fig. Figures 12 to 13 are structural diagrams of supporting nodes, in which Figure 12 is a front view of supporting nodes, Figure 13 is a top view of Figure 12; Figures 14 to 15 are structural diagrams of positioning rings, and Figure 14 is a front view of positioning rings Fig. 15 is a side view of Fig. 14; Fig. 16 to Fig. 17 are structural diagrams of the limit ring, wherein Fig. 16 is a front view of the limit ring, and Fig. 17 is a side view of Fig. 16; Fig. 18 ~ Fig. 19 is an example diagram of the application of the utility model in actual engineering, wherein FIG. 18 is a connection structure diagram of a support and a gusset plate, and FIG. 19 is an E-E sectional view of FIG. 18 .

detailed description

Specific embodiment 1: In conjunction with Fig. 8 to Fig. 19, a position-adjustable anti-buckling support pin connection node of this embodiment includes: a gusset plate 6-1, which is opened with a round hole 6- 2; pin shaft 7-1, with thread 7-2 at both ends; support node 8-1, with long slotted round hole 8-2; positioning ring 9-1, with round hole 9-2 at the center of the circle ; The limiting ring 10-1 is provided with a round hole 10-2 with an internal thread at the center of the circle, and a pair of parallel planes 10-3 are provided on the upper and lower surfaces of the ring.

The gusset plate 6-1 is inserted in the gap between the support nodes 8-1, arranged in the center, and the opening positions of the two are consistent; the pin shaft 7-1 passes through the gusset plate 6-1 and the support node 8 at the same time The reserved holes 6-2 and 8-2 of -1 are arranged in the center; the positioning ring 9-1 is set on the outside of the support node 8-1 and closely attached to its surface, and is surrounded by the support node 8-1 through the fillet weld 11 Welding connection; the limit ring 10-1 is arranged on the outside of the positioning ring 9-1 and is in close contact with its surface.

Specific embodiment 2: In conjunction with Fig. 8 to Fig. 9, the gusset plate 6-1 in this embodiment is composed of a steel plate, which has two horizontal sides, two vertical sides and a hypotenuse, and the middle of the hypotenuse Perpendicularly be provided with circular hole 6-2, its diameter is larger than bearing pin 7-1 diameter 0.2mm. Such an arrangement can reduce the connection gap between the pin shaft 7-1 and the gusset plate 6-1.

Specific embodiment three: In conjunction with Fig. 10 to Fig. 11 , the pin shaft 7-1 in this embodiment is provided with external threads 7-2 of a certain length at both ends.

Specific Embodiment 4: In conjunction with Fig. 12 to Fig. 13, the supporting node 8-1 in this embodiment is composed of two steel plates, which are arranged in parallel with each other, and there is a gap between them, and the width of the gap is at least wider than that of the gusset plate 6-1. The thickness is 30mm larger, and one end of the support node 8-1 is an arc surface, and a long slot 8-2 is arranged on the center line of the support node 8-1, and its direction is consistent with the direction of the length of the support, and the diameter of the slot 8-2 is larger than that of the pin The diameter of the shaft 7-1 is 4 mm, and the length of the slot 8-2 is 10 mm. With such arrangement, it is easy to install the pin shaft.

Embodiment 5: In conjunction with Fig. 14 to Fig. 15, the positioning ring 9-1 in this embodiment is provided with a round hole 9-2 at the center of the circle, the diameter of which is 0.2 mm larger than that of the pin shaft 7-1, and its The thickness should meet the calculation requirements of the bearing capacity of the support. Such setting can reduce the actual gap between the pin shaft and the supporting node.

Specific embodiment six: In conjunction with Fig. 16 to Fig. 17, the limiting ring 10-1 in this embodiment is provided with a round hole 10-2 at the center of the circle, and is provided with threads 7 on both sides of the pin shaft 7-1. -2 matched internal threads 10-2, the upper and lower surfaces of the limiting ring 10-1 are provided with a pair of mutually parallel planes 10-3 as rotation planes. Such setting can facilitate the fixing of the pin shaft and facilitate the tightening during on-site construction.

Specific implementation mode 7: In conjunction with Figures 18-19, this implementation mode is an example of installing the utility model in an actual project: the gusset plate 6-1 is inserted between the support nodes 8-1 and arranged in the center; the pin The shaft 7-1 passes through the round hole 6-2 of the gusset plate 6-1 and the slot hole 8-2 of the support node 8-1 at the same time, and is arranged in the center; the positioning ring 9-1 is set on the outside of the support node 8-1, The two are closely attached to each other and connected by a fillet weld 11; the limiting ring 10-1 is occluded and tightened with the external thread 7-2 of the pin shaft 7-1 through the internal thread 10-2. Such a connection not only facilitates construction, installation and positioning, but also reduces the actual gap between the pin shaft and the supporting node, achieving good seismic performance.

As shown in FIGS. 8 to 19 , a method for processing a connection node of a buckling-resistant support pin with an adjustable position in this embodiment is implemented according to the following steps:

Step 1, welding and fixing the gusset plate 6-1 to the flange surface of the structural beam and column;

Step 2: hoist the support to the actual construction site, insert the gusset plate 6-1 into the internal gap of the support node 8-1, penetrate the pin shaft and connect the support node 8-1 and the gusset plate 6-1 at the same time;

Step 3: Sleeve the positioning ring 9-1 from both sides of the pin shaft 7-1 and tightly adhere to the outer surface of the support node 8-1, and connect the two through a fillet weld 11.

Step 4: Rotate the limiting ring 10-1 from both sides of the pin shaft and screw it in tightly with the outer surface of the positioning ring 9-1, and finally complete the processing, construction and installation of the utility model.

Claims (6)

1. A position-adjustable anti-buckling support pin shaft connection node, the connection node includes a support node, a gusset plate, a pin shaft, a positioning ring, a limit ring and a connecting weld, characterized in that: the support The node is composed of two parallel steel plates, there is a gap between the steel plates, and a slot hole is arranged at the center line of the plate, the diameter of the slot hole is slightly larger than the pin shaft, and the length direction of the slot hole is consistent with the direction of the support axis; the node plate It consists of a steel plate, which is perpendicular to the outer surface of the beam-column flange of the structure and is fixed by welding. The geometry of the gusset plate consists of two vertical sides, two horizontal sides and a hypotenuse. A round hole slightly larger than the diameter of the pin shaft; the gusset plate is inserted between the two steel plates supporting the node, and the position of the round hole of the supporting node is consistent with the slot hole of the gusset plate; The length of the thread, the pin shaft is connected through the slot hole of the gusset plate and the round hole of the support node at the same time, and the length of the pin shaft protruding from both sides of the support node is guaranteed to be consistent; the center of the positioning ring is provided with a round hole, and the circle The diameter of the hole is larger than the diameter of the pin shaft, and they are inserted from both sides of the pin shaft and tightly attached to the outer surface of the support node, and connected to the support node through fillet welding; there is a circular hole in the middle of the limiting ring, and the circle The hole is provided with an internal thread matching the diameter and thread of the pin shaft, and a pair of horizontal planes are provided on the upper and lower surfaces of the limiting ring to facilitate rotation. The surface of the support node is tightly attached. 2. The position-adjustable anti-buckling support pin connection node according to claim 1, characterized in that: the connection node comprises: a gusset plate (6-1) with a round hole (6-2); (7-1), with threads (7-2) at both ends; support node (8-1), with a slotted round hole (8-2); positioning ring (9-1), with a There is a round hole (9-2); the limit ring (10-1) is provided with a round hole (10-2) with an internal thread at the center of the circle, and a pair of parallel planes (10-2) are arranged on the upper and lower surfaces of the ring. 3); the gusset plate (6-1) is inserted in the gap between the support nodes (8-1), arranged in the center, and the opening positions of the two are consistent; the pin shaft (7-1) passes through at the same time The gusset plate (6-1) and the round hole (6-2) and the long hole (8-2) of the support node (8-1) are arranged in the center; the positioning ring (9-1) is set at the support node ( 8-1) and close to its surface, connected with the support node (8-1) by fillet weld (11); the limit ring (10-1) is set on the positioning ring (9-1) outside and adhere to its surface. 3. The position-adjustable anti-buckling support pin connection node according to claim 1, characterized in that: the gusset plate (6-1) is composed of a steel plate, which has two horizontal sides and two vertical sides side and a hypotenuse, a circular hole (6-2) is provided on the perpendicular line of the hypotenuse, and its diameter is 0.2mm larger than that of the pin shaft (7-1); Such setting can reduce the connection gap between the pin shaft (7-1) and the gusset plate (6-1). 4. The position-adjustable anti-buckling support pin connection node according to claim 1, characterized in that: the support node (8-1) is composed of two steel plates, which are arranged in parallel with each other, and there is a gap between them. Gap, the width of the gap is at least 30mm greater than the thickness of the gusset plate (6-10), one end of the support node (8-1) is an arc surface, and a long slot hole (8-2 ), its direction is consistent with the direction of the length of the support, the diameter of the slot (8-2) is 4mm larger than the diameter of the pin (7-1), and the length of the slot (8-2) is 10mm. 5. The position-adjustable anti-buckling support pin connection node according to claim 1, characterized in that: the positioning ring (9-1) is provided with a round hole (9-2) at the center of the circle, which The diameter is 0.2mm larger than the pin shaft (7-1) diameter. 6. The position-adjustable anti-buckling support pin connection node according to claim 1, characterized in that: the gusset plate (6-1) is inserted between the support nodes (8-1) and arranged in the center; The pin shaft (7-1) passes through the round hole (6-2) of the gusset plate (6-1) and the slot hole (8-2) of the support node (8-1) at the same time, and is arranged in the center; the positioning ring ( 9-1) Set on the outside of the support node (8-1), the two are close to each other and connected by the fillet weld (11); the limit ring (10-1) is connected with the internal thread (10-2) The external threads (7-2) of the pin shaft (7-1) are interlocked and tightened.