Windproof, fireproof and explosion-proof integrated structure for bridge tower area

Abstract

The invention relates to a windproof, fireproof and explosion-proof integrated structure for a bridge tower area, which comprises a bridge tower area guardrail and two layers of partition plates arranged on the bridge tower area guardrail or on the outer side of the bridge tower area guardrail, a first partition plate layer is vertically arranged above the bridge tower area guardrail or on the outer side of the bridge tower area guardrail, and a second partition plate layer is vertically arranged on the first partition plate layer; the length of the second partition plate layer is 50%-80% of the set length of the first partition plate layer; holes are formed in the first partition plate layer and the second partition plate layer, the aperture ratio of the first partition plate layer is 30%-70%, and the aperture ratio of the second partition plate layer is 10%-20%. Compared with the prior art, the overall structure meets the optimal design based on aerodynamics, the gradient design meets the optimal design of the material consumption of the bridge tower area, the construction process of the overall structure is convenient, and popularization is facilitated.

Description

technical field [0001] The invention relates to the field of bridge engineering, in particular to a windproof, fireproof and explosion-proof integrated structure used in bridge tower areas. Background technique [0002] With the continuous advancement and innovation of bridge construction in our country, the number and span of bridge construction in areas with strong winds, including coastal areas, are constantly increasing, and the impact of wind on the traffic on the bridge and even on the bridge structure is becoming more and more obvious. In a strong wind environment, the driving vehicle will be significantly affected by the vertical lift, the downwind thrust and the driving resistance. At the same time, the bridge will also have further impact on the driving on the bridge due to buffeting, eddy vibration and other vibration phenomena. For special bridge types such as cable-stayed bridges and suspension bridges, the wind field at the intersection of towers and girders is...

AI Technical Summary

Problems solved by technology

For special bridge types such as cable-stayed bridges and suspension bridges, the wind field at the intersection of towers and girders is extremely complex. If appropriate wind protection measures are not taken, it will inevitably pose a major and unpredictable threat to driving vehicles

[0003] Considering that the sudden change of wind speed in the tower area of ​​the cable-loaded bridge will affect the driving safety caused by the wind, it will lead to driving safety problems. In addition, the traffic vehicle fire under the action of the wind may make the tower column face the test of fire; for the fire of dangerous flammable and explosive transport vehicles It may cause explosion problems, which will also have an adverse effect on the structure of the tower column

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