Inhaul cable damping support saddle

Abstract

An inhaul cable damping support saddle belongs to the technical field of bridge support saddles. The inhaul cable damping support saddle comprises a lower saddling, an upper saddling, a first buffer plate, a middle plate, a wearing plate and a second buffer plate, and is characterized in that: the inhaul cable damping support saddle further comprises a shear bolt, inhaul cables and a pair of automatic bolt-dislocation devices, the shear bolt is arranged on the lower saddling, the first buffer plate, the middle plate, the wearing plate, the second buffer plate and the upper saddling in a penetrating way, the upper end of the shear bolt sticking out of a sixth bolt hole on the upper saddling is connected with one automatic bolt-dislocation device of a pair of automatic bolt-dislocation devices, while the lower end thereof sticking out of a first bolt hole on the lower saddling is connected with the other automatic bolt-dislocation device, a shear mouth is formed in the middle of the shear bolt, the number of the inhaul cables are four groups, one end of each group of the inhaul cable is connected with the upper saddling, and the other end thereof is connected with the lower saddling. The invention is characterized in that: the invention can consume action energy generated on a bridge when earthquake occurs and controllably amortizes the horizontal displacement between the upper saddling and the lower saddling, and can be reliably reset after the earthquake vanishes.

Description

technical field [0001] The invention belongs to the technical field of bridge bearings, and in particular relates to a cable damping bearing, which is suitable for railway bridges, highway bridges, urban viaducts and various large-scale suspension structures, and plays a shock-absorbing role. Background technique [0002] China Utility Model Patent Authorization Notice No. CN2646197Y discloses a tensile basin type rubber bearing. The technical effect of this technical solution is twofold. The rectangular lugs form a pair of lockable structures with each other, which helps to improve the sliding and pulling resistance of the bridge deck and pier; the second is to add a rubber spring ring to the middle seat to prevent the middle seat from rotating. Rigid contact with the cavity wall of the middle seat body, thereby protecting the middle seat body. [0003] Chinese Utility Model Patent Authorization Announcement No. CN2646198Y recommends a pot-type rubber bearing. Compared wit...

AI Technical Summary

Problems solved by technology

More specifically, the above two patented technical solutions eliminate the following two shortcomings of the basin rubber bearing in the prior art: one is because the upper seat plate used to fix the bottom surface of the main beam of the bridge and the The infinite fastening mechanism between the lower seat plate fixed by the pier, therefore, when the bridge deck is caused to rotate due to earthquakes or other human factors, it will cause a rotational dislocation between the bridge deck and the pier; the second is Since the contact surface between the intermediate seat body and the wall of the intermediate body cavity on the lower seat plate is in rigid contact during the rotation (rotation) process, the intermediate seat body is vulnerable to damage.

[0004] However, the above two patented technical solutions all have common deficiencies: one is that when an earthquake occurs, part of the energy of the earthquake cannot be effectively consumed, so there is a lack of sufficient protection for the bridge body; the other is that when an earthquake or major vibration occurs During impact, the horizontal displacement between the upper and lower seat plates cannot be effectively buffered and reset (reset after the earthquake)

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