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  • 桥梁护栏的高度有什么要求
  • 本站编辑:杭州楷高实业有限公司发布日期:2019-04-04 18:09 浏览次数:

1、人行道或安全带外侧的栏杆高度不应小于1.10m。栏杆构件间的最大净间距不得大于140mm,切不宜采用横线条栏杆。桥梁护栏栏杆结构设计必须安全可靠,栏杆底座应设置锚筋,其强度应满足国家规范要求。

2、桥梁护栏栏杆强度应满足:车辆以80KM/H的速度,与栏杆成15°角发生碰撞,不落河。

3、桥梁护栏栏杆造型、色调与周围环境协调,对重要桥梁宜作景观设计。

4、当桥梁跨越快速路、城市轨道交通、高速公路、铁路干线等重要交通通道时,桥面人行道栏杆上应加设护网,护网高度不应小于2m,护网长度宜为下穿道路的宽度并各向路外延长10m。

5、作用在桥上人行道栏杆扶手上竖向荷载应为1.2KM/m;水平向外荷载应为2.5KM/m。两者应分别计算

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1. The height of the railings outside the sidewalk or seat belt should not be less than 1.10m. The maximum net spacing between railings should not be greater than 140 mm, and horizontal railings should not be used in cutting. The structure design of bridge guardrail must be safe and reliable. The anchor bars should be set on the base of the guardrail, and its strength should meet the requirements of the national code.

2. The strength of bridge guardrail should be satisfied: the vehicle collides with the guardrail at a speed of 80KM/H at an angle of 15 degrees and does not fall into the river.

3. The shape and tone of the bridge guardrail are in harmony with the surrounding environment. It is suitable for landscape design of important bridges.

4. When bridges cross important traffic channels such as expressways, urban rail transit, expressways and trunk railways, protective nets should be installed on the pavement railings on the deck of bridges. The height of protective nets should not be less than 2m, and the length of protective nets should be the width of the underpass roads and extended by 10m in each direction.

5. The vertical load acting on the handrails of the pedestrian railings on the bridge should be 1.2KM/m, and the horizontal outward load should be 2.5KM/m. They should be calculated separately.


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