Anti-lock one-way sliding shock-absorbing hinge support

Abstract

The invention provides an anti-lock one-way sliding shock-absorbing hinge support, which includes an upper seat, a lower seat that is rotated and engaged by the upper seat, and a spherical crown plate placed on the top of the lower seat and pressed by the upper seat The component is characterized in that: it also includes a shear side plate extending downward connected to the side of the upper seat, and an elastic piece whose two ends are respectively connected to the shear side plate and the upper seat. The leaf spring assembly with large deformation and the disk spring assembly with "high stiffness and small allowable deformation", through the disk spring assembly arranged in the direction of the bridge, and the leaf spring assembly arranged in the direction of the bridge, make the two-way rigidity of the support inconsistent, and at the same time Because the disc spring assembly has the characteristics of high rigidity and small allowable displacement, it can effectively resist the strong wind with a relatively large return period suffered by the corridor bridge. Compared with the rigidly constrained support of the transverse bridge, the anti-locking one-way sliding The shock-absorbing hinge support can largely avoid the destruction of the bridge body structure caused by the locked bridge relative to the tower.

Description

technical field [0001] The invention relates to a shock-isolation and shock-absorbing structure of a fixed building, in particular to an anti-locking one-way sliding shock-absorbing hinge support. Background technique [0002] For the existing support nodes, leaf springs are usually used to achieve buffering for dynamic loads. For example, the comparative document of the announcement number CN204385607U discloses an anti-seismic connection seat, such as Figure 1 to Figure 2 As shown, the anti-seismic connecting seat is buffered by leaf spring 70 in both the direction of the bridge and the direction of the bridge. When an earthquake occurs, the end of the leaf spring 70 receives an excessive instantaneous dynamic load. The end of 70 scrapes against the inner side wall of box body 10 with high frequency, so that the inner side wall of box body 10 is scraped out of the stepped protrusion, and then causes the movement of the end of leaf spring 70 to be hindered by the protrusio...

AI Technical Summary

Problems solved by technology

However, due to the rigid constraints in the direction of the bridge, and because the one-way sliding bearings cannot ablate the displacement difference between the bridge nodes and the one-way sliding bearings, it is easy to cause the corridor bridge to lose its position relative to the The towers are locked, so that the support or bridge structure of the covered bridge is damaged when the two towers are twisted, causing more serious consequences

[0005] In addition, because the wind force at high altitude is stronger than that on the ground and the wind direction changes more frequently, the end of the plate spring 70 in the direction of the bridge will constantly scratch the inner side of the box 10 under the long-term wind load of the bridge direction. wall, the strength and hardness of the leaf spring steel are much higher than the steel of the box body 10, and the end of the leaf spring of the conventional support product is a sharp right angle, which will make the inner side wall of the box body 10 be scraped out of the stepped protrusion, Then the movement of the end of the plate spring 70 is hindered by the protrusion when stretching, and the lower support 20 is blocked by the box body 10, that is, the corridor bridge is blocked by the support.

Once the corridor bridge is stuck by the support, and then it is affected by the wind load for a long time, it is easy to cause the shaft bolt used to fix the leaf spring 70 to be sheared and broken, which will cause the leaf spring 70 to fall apart, and finally the entire anti-seismic connection seat loses the anti-seismic function

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