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什么是混凝土防撞护栏
一、什么是混凝土防撞护栏
I. What is a concrete crash barrier
就是钢筋混凝土浇筑的防护栏，混凝土工程一般都是加钢筋的，就是钢筋混凝土。
It is reinforced concrete pouring guardrail, concrete engineering is generally reinforced, that is, reinforced concrete.
防防撞护栏一般在高速公路上或者公路桥梁上用的。所谓防撞，其实就是比较结实，防止撞击损坏，车辆在发生事故时碰到防撞栏不至于冲破防撞栏坠落到路面或桥面以下造成更大损失和伤亡。
Anti-collision barriers are usually used on highways or highway bridges. The so-called anti-collision, in fact, is relatively strong, to prevent impact damage, vehicles in the event of accidents hit the anti-collision barrier will not break through the anti-collision barrier and fall below the road or bridge deck causing greater losses and casualties.
二、混凝土防撞护栏是不是防撞墙
2. Are concrete barriers anti-collision walls?
是的。
Yes.
防撞墙是桥面的重要组成部分，其砼表面质量要求不亚于立柱要求，且因防撞墙表面为弧形，故施工要求更高。
Anti-collision wall is an important part of bridge deck. Its concrete surface quality requirement is no less than that of column. Because the surface of anti-collision wall is arc, the construction requirement is higher.
根据规范，应该是在填方边坡大于6m的时候必须设置，或者外侧是凌空面。
According to the specifications, it should be set when the filling slope is larger than 6m, or the outside surface is empty.
三、混凝土防撞护栏尺寸
3. Size of concrete anti-collision guardrail
具体如下:模面钢板采用5mm厚的新钢板一次冲压成型，具有良好的整体性。每一块防撞护栏钢模板顺桥向长1.25m，模板外侧的加劲肋间距为30㎝左右，主要是保证模板在使用过程和吊装过程中不易变形。
Specifically as follows: the die surface steel plate is stamped once by a new steel plate with a thickness of 5mm, which has a good integrity. Each anti-collision guardrail steel formwork is 1.25m long along the bridge, and the stiffening rib spacing on the outer side of the formwork is about 30, which mainly ensures that the formwork is not easily deformed in the process of use and hoisting.
四、混凝土防撞护栏外观鉴定标准
4. Standard for Appearance Appraisal of Concrete Anti-collision Guardrail
1、 现浇混凝土防撞护栏顺直美观，表面光滑。色泽一致。
1. Cast-in-situ concrete barrier is straight and beautiful with smooth surface. The color is uniform.
2、 护栏混凝土表面的蜂窝麻面面积不超过该面积的0.5%，深度不 超过10mm。
2. The area of honeycomb linen on the concrete surface of guardrail does not exceed 0.5% of the area and the depth does not exceed 10 mm.
I. What is a concrete crash barrier
就是钢筋混凝土浇筑的防护栏，混凝土工程一般都是加钢筋的，就是钢筋混凝土。
It is reinforced concrete pouring guardrail, concrete engineering is generally reinforced, that is, reinforced concrete.
防防撞护栏一般在高速公路上或者公路桥梁上用的。所谓防撞，其实就是比较结实，防止撞击损坏，车辆在发生事故时碰到防撞栏不至于冲破防撞栏坠落到路面或桥面以下造成更大损失和伤亡。
Anti-collision barriers are usually used on highways or highway bridges. The so-called anti-collision, in fact, is relatively strong, to prevent impact damage, vehicles in the event of accidents hit the anti-collision barrier will not break through the anti-collision barrier and fall below the road or bridge deck causing greater losses and casualties.
二、混凝土防撞护栏是不是防撞墙
2. Are concrete barriers anti-collision walls?
是的。
Yes.
防撞墙是桥面的重要组成部分，其砼表面质量要求不亚于立柱要求，且因防撞墙表面为弧形，故施工要求更高。
Anti-collision wall is an important part of bridge deck. Its concrete surface quality requirement is no less than that of column. Because the surface of anti-collision wall is arc, the construction requirement is higher.
根据规范，应该是在填方边坡大于6m的时候必须设置，或者外侧是凌空面。
According to the specifications, it should be set when the filling slope is larger than 6m, or the outside surface is empty.
三、混凝土防撞护栏尺寸
3. Size of concrete anti-collision guardrail
具体如下:模面钢板采用5mm厚的新钢板一次冲压成型，具有良好的整体性。每一块防撞护栏钢模板顺桥向长1.25m，模板外侧的加劲肋间距为30㎝左右，主要是保证模板在使用过程和吊装过程中不易变形。
Specifically as follows: the die surface steel plate is stamped once by a new steel plate with a thickness of 5mm, which has a good integrity. Each anti-collision guardrail steel formwork is 1.25m long along the bridge, and the stiffening rib spacing on the outer side of the formwork is about 30, which mainly ensures that the formwork is not easily deformed in the process of use and hoisting.
四、混凝土防撞护栏外观鉴定标准
4. Standard for Appearance Appraisal of Concrete Anti-collision Guardrail
1、 现浇混凝土防撞护栏顺直美观，表面光滑。色泽一致。
1. Cast-in-situ concrete barrier is straight and beautiful with smooth surface. The color is uniform.
2、 护栏混凝土表面的蜂窝麻面面积不超过该面积的0.5%，深度不 超过10mm。
2. The area of honeycomb linen on the concrete surface of guardrail does not exceed 0.5% of the area and the depth does not exceed 10 mm.
