Tension-resisting anti- beam-falling combined shock insulation device and construction method thereof

A technology of anti-falling beams and shock isolation, applied in the direction of bridges, bridge parts, bridge materials, etc., can solve the problems of substructure damage, brittle damage of stoppers, uneconomical design, etc., to prevent falling beams, simple structure, good vertical effect on tensile strength

CN106638286AActive Publication Date: 2017-05-10CHINA MAJOR BRIDGE ENERGINEERING +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-05-10

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Abstract

The invention provides a tension-resisting anti-beam-falling combined shock insulation device and a construction method thereof. The tension-resisting anti-beam-falling combined shock insulation device is characterized by including lead core rubber shock insulation supporting bases used for preventing horizontal falling of beams and tension-resisting devices used for vertical tension resisting; the lead core rubber shock insulation supporting bases are connected between bridge piers and main beams, one end of each tension-resisting device is fixed on the lower bottom surface of the corresponding main beam, the other end of each tension-resisting device is fixed on the top surface of the corresponding straining beam, the tension-resisting devices include upper U-shaped steel members and lower U-shaped steel members, and the upper-portion U-shaped steel members and the lower-portion U-shaped steel members are connected through left hand threads. The tension-resisting anti-beam-falling combined shock insulation device not only can achieve the function of preventing horizontal falling of beams, but also can meet the need of vertical tension resisting, the system is clear, the stress is clear, and the structure is simple; the device is economical and practical, and has good tension-resisting, anti-beam-falling and shock insulation effects and good applicability in the design of bridges in a high intensity earthquake zone.
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Description

technical field

[0001] The invention relates to a shock-isolation device, in particular to a combined shock-isolation device of tensile anti-drop beams and a construction method thereof. Background technique

[0002] One of the warnings of the Wenchuan Earthquake is that we should pay close attention to the research and application of bridge shock absorption and isolation technology. The seismic isolation measures widely used in the bridge field are lead rubber isolation bearings. The support is made of rubber sheets and thin steel plates alternately laminated and then vulcanized, and filled with lead rods. Among them, the role of the thin steel plate is to restrain the lateral deformation of the rubber sheet, so that the rubber bearing has the same vertical stiffness as the conventional component. The role of the rubber sheet is to provide the required horizontal displacement and reduce the horizontal stiffness. The shock absorption and isolation mechanism of the lead ru...

Examples

Embodiment Construction

[0031] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings, but it does not constitute a limitation of the present invention, and is only used as an example. At the same time, the advantages of the present invention will become clearer and easier to understand through the description.

[0032] Such as figure 1 Shown: a combined shock-isolation device for tensile anti-fall beams, characterized in that it includes a lead rubber shock-isolation support 6 for horizontal anti-fall beams and an anti-pullout device 5 for vertical anti-pullout, The lead-core rubber shock-isolation bearing 6 is connected between the pier 1 and the main girder 3, one end of the anti-pullout device 5 is fixed on the lower surface of the main girder 3, and the other end of the anti-pullout device 5 is fixed on the top of the tie beam 4 On the other hand, the anti-pullout device 5 includes an upper U-shaped steel member 7 and a lower ...