highway guardrail material

highway guardrail material

There are differences in flexibility between different highway guardrail material, so today we will introduce them.

What is a highway guardrail? The highway guardrail is a continuous structure, mainly composed of corrugated steel guardrails. Each corrugated steel fence is fixed on the guardrail column by the way of splicing to form a whole. The structure of the corrugated fence plate is not only beautiful, but also easy to use, such as inserting a column in a corrugated fence, so that it has good isolation function, convenient and quick.

Then, on a large number of guardrails, why do we use corrugated guardrails in road guardrails? This is due to the rigidity and flexibility of the characteristic wave guardrail. When it hits the guardrail from the car, it is rigid and flexible. It can quickly collide with energy absorption, turn to the control of the vehicle, the vehicle and the vehicle ensure the safety of the personnel. . In the vehicle impact barrier board, because the freeway guardrail board uses the wave guardrail plate through the column semi rigid connection, it will absorb a large number of impact wave barrier board through their determination and the deformation of the column and beam, so that the change of the driving direction of the vehicle will avoid the phenomenon of the Road on the vehicle. Driving on expressways requires not only skilled driving skills, but also wave guardrail, which provides strong security for everyone.

Spray and soak are two kinds of guardrail products, many friends say it is dipped in spray, in fact, their production process is different, today will give you a detailed explanation. What is the dip and spray in the production process of the wave guardrail? The first layer (inner layer) of the plastic impregnating element should be zinc, and the second layer (outer layer) non metal coating can be polyethylene, polyvinyl chloride or polyester (recommended by polyester impregnation).

The quality or thickness of each layer should meet the requirements of the following table. The average type of zinc layer quality g/m2 dipping thickness / 270 > 0.25 > 0.076 > 0.25 > 120 fasteners for PVC, PE, polyester steel plate and steel strip. The hot dip coating of connector 0.076 should conform to the following indexes: the bottom property affects the impact test of 50 cm kg, the free surface of the crack sample, and the dissection of the dipping layer. Dip coating adhesion: no less than 1.of highway guardrail material

highway guardrail

The utility model of highway guardrail material is mainly used for isolating protection wave guardrails of highway lanes, which involves a composite corrugated plate movable steel guardrail for the opening of the central section of the highway.

The guardrail is composed of two columns of corrugated steel guardrail and two vertical columns fixed between them. The two columns are fixed in two pieces of corrugated steel. Between the guardrails. In the normal operation of the highway, the guardrail can be conveniently inserted into the prearranged pluggable hole in the opening by using the plugged column, and it can play the role of isolation and protection.

At the same time, it corresponds to the guardrail belt on the outside of the highway. The corrugated beam guardrail is the main form of semi-rigid guardrail.

It is a continuous structure with corrugated steel guardrail plates spliced together and supported by main columns. It uses the deformation of the soil foundation, column and beam to absorb the energy of collision, and force the out of control vehicle to change direction, return to the normal driving direction, prevent the vehicle from out of the road, to protect the vehicle and passengers and reduce the loss caused by the accident. The soft phase of the wave beam guardrail has a strong ability to absorb the energy of collision.

It has good line of sight induction function. It can coordinate with the line shape of the road. It is beautiful in appearance. It can be used in a small radius bend. The damage place is easy to replace. The combined wave beam guardrail can be used in narrow central dividers. For the section that may cause serious consequences outside the bridge (bridge), the corrugated beam guardrail can be selected.

The system principle of highway guardrail

The highway guardrail material is the main form of semi steel guardrail. It is a continuous structure with corrugated steel guardrail plates spliced together and supported by columns.

It uses the deformation of the soil foundation, column and beam to absorb the energy of collision, and force the out of control vehicle to change direction, return to the normal driving direction, prevent the vehicle from out of the road, to protect the vehicle and passengers and reduce the loss caused by the accident.

The soft phase and soft phase of the freeway wave guardrail has a strong ability to absorb the energy of collision. It has good line of sight induction function, can coordinate with the line of road, beautiful shape, can be used in a small radius bend, and the damage place is easy to replace. According to the principles and relevant regulations established by the People's Republic of China industry standard "highway engineering technical standard" (JTJ01 - 88), this standard is formulated with reference to the experience of the design, construction and application of the domestic highway traffic safety facilities and the mature scientific and technological research results.

1, the highway guardrail does not need to paint and maintain, and the old and new are not old. It saves you from the trouble of maintenance and trouble, and the lowest comprehensive cost.

2, guardrail production and installation is simple and quick, the use of patented friction connection or special connection accessories for installation, greatly improving the installation efficiency.

3, the highway guardrail material variety specification is various, many modelling chooses you, has the European and American style and the present popular fashion, displays the noble and the modern esthetic sense.

w beam guardrail

4, guardrail safety, environmental protection, harmless to people (livestock), even if accidentally touches the guardrail, it will not hurt like steel and iron guardrail.

5. The inner cavity of the guardrail is equipped with galvanized steel or aluminum alloy. It has enough strength and impact resistance to make the PVC guardrail have the strength of steel and the beauty of PVC.