"Looking at the shape of the bridge from a distance, looking at the railings from a close perspective", railings are the facade of the bridge and an important part of the aesthetic design system of bridge architecture. Railings with a strong sense of the times not only beautify the city and its surrounding environment, but also set off the beautiful landscape of nature. As an important part of a bridge, do you really use railings?
With the development of the times, the continuous improvement of bridge construction technology, bridge railings are also changing. In the 21st century, people expect the landscape design of bridge guardrail to be more modern, personalized and humanized, and at the same time contain the national, cultural and regional flavor, so as to beautify people's living environment.
Generally speaking, the purpose of bridge guardrail is to prevent out of control vehicles from crossing the bridge, which has the function of preventing vehicles from breaking through, underneath, crossing the bridge and beautifying the bridge building. From ancient times to now, in the history of bridges, it is true that the main function of railings is to beautify and protect for a long time, because the bridges at that time were mainly made of wood, stone and other materials, not so many vehicles today, and the bridge guardrails solved the safety problems of people when crossing the bridge. However, with the development of society, the number of vehicles is increasing rapidly, and the span of bridge is increasing. The cost of bridge construction must be considered. First of all, the main structure of bridge pier, main tower, cable, bridge deck and so on should be given priority, while the anti-collision barrier, guardrail and so on are auxiliary structures. Therefore, in the case of limited investment, secondly, auxiliary facilities can be considered. The first thing to ensure for the bridge is the safety of the main structure, and the function of the bridge guardrail has changed a little. At present, the most important and frequent function of bridge guardrail is visual guidance, which is used to warn that the inside of guardrail is the bridge deck and the outside is the high altitude, so as to remind everyone to keep away from it.
Of course, this is not to say that the safety input of auxiliary facilities can be ignored. It should be noted that if a large vehicle collides with a guardrail at a high speed or at a high angle of attack (close to the vertical direction), the impact force exceeds the limit of the guardrail's protection ability, and the guardrail is also difficult to ensure that the vehicle will not rush out of the bridge.
Therefore, it also reminds drivers that they must pay attention to driving standards and drive safely.