How to calculate the gutter cover, how thick is the general finished gutter cover

The basic starting point of the calculation of the load of the drainage ditch cover plate is to take the bending moment at the midpoint of the ditch cover plate as the maximum load, and the wheel load is evenly distributed on the bearing flat steel according to the wheel grounding area during the calculation, and the bending stress of each bearing flat steel does not exceed the strength design value of the material, that is, it is regarded as meeting the strength requirements. The maximum deflection should be calculated at the same time, and for the roadway ditch cover, the deflection should not be greater than 1 500 of the span. [Click to learn more product details of Dechuang Steel Grating Plate and**].

Gutter cover is also known as:"Gutter covers"、"Manhole covers"Initially, the "manhole cover" was made of cement and cast iron, but later it was easily damaged in normal use and had a large replacement cost. It is made of steel grating plate pressure welding, so that it has simple construction and installation, light weight, good bearing, strong impact resistance, excellent drainage, beautiful use of the surface of the product after hot-dip galvanizing treatment, anti-rust and anti-corrosion, and has the incomparable advantages of cast iron ditch cover.

If you want to buy galvanized ditch covers, we recommend Dechuang wire mesh products****. Dechuang wire mesh products company has a perfect organization, scientific and technological management mode, strong technical force, a variety of specifications of steel grating series products, products are widely used in highways, petrochemical, chemical, ports, alloys, electric power, papermaking, steel, building materials, municipal, petroleum, sewage treatment and general industrial plants, municipal construction and other fields. <>

A gutter cover is a component used to cover a gutter and is usually made of materials such as concrete, reinforced concrete, cast iron, etc. Its main function is to protect the gutter from damage from external objects, and it is also able to bear the weight of vehicles and pedestrians.

So, how do you calculate the size of a gutter cover? Here are some basic calculations:

1.Determine the size of the gutter: The length, width, and depth of the gutter need to be measured first to determine the area and depth that needs to be covered.

2.Determine the size of the cover: According to the size of the gutter, calculate the required cover size. Typically, the length and width of the cover should be a bit larger than the length and width of the gutter to ensure complete coverage.

3.Determine the thickness of the cover: The thickness of the cover should be determined according to the weight required to be carried. In general, the thickness of the cover plate should be greater than or equal to the depth of the gutter to ensure sufficient strength and stability.

4.Determine the material of the cover: The material of the cover should be selected according to the weight required to carry and the environment in which it will be used. For example, if you need to bear the weight of a heavy vehicle, then you should choose a reinforced concrete or cast iron cover.

In summary, there are several factors to consider when calculating the size of a gutter cover, including the size of the gutter, the size, thickness, and material of the gutter. When choosing a cover, it should be considered according to the actual situation to ensure that it has sufficient strength and stability.

First attach the common thickness table of the finished drainage ditch cover.

The thickness of 120mm can withstand about 900kN

The thickness of 100mm can withstand about 600kN

The thickness is 90mm, and it can withstand about 400kN

The thickness is 80mm, and it can withstand about 250kN

The thickness of 70mm can withstand about 125kn

The thickness of 50mm can withstand about 15kN

Then we understand a knowledge, that is, the load-bearing level of the gutter cover, which is divided into the following parts:

a15

Pedestrian areas, bicycles and other light vehicle driving areas, such as pedestrian streets, gardens and other places with low load-bearing requirements. B125 is often used in places where small vehicles pass, such as: slow lanes, small car parking lots, etc. Such as community access, parking lot and other situations.

c250

It is often used in places where large vehicles pass by, but not too frequently, such as: curbs, shoulder areas, traffic auxiliary roads, large parking lots, stadiums.

d400

Generally, it is often used in places where high-frequency vehicles pass, such as: road driving lanes, fast driving lanes, etc.

e600

Generally, it is a place where heavy vehicles pass, such as: forklifts, fire trucks, heavy-duty trucks, such as industrial areas, unloading yards and other high-load-bearing vehicles.

f900

This kind of standard is relatively used in the places where it is used, and the requirements for load-bearing are very high, such as: heavy-duty vehicle driving areas, such as airports, cargo ports, military venues, etc.!

Gutter covers are now selected FRP covers, and here are some of the regular sizes:

Trench cover plates are mainly used in some factories and high-end residential areas, mainly because cement trench covers are often crushed and the road surface is also damaged. Therefore, the trench cover plate made of steel grating is used to suit different load loads. Due to the simple construction, light weight, good load-bearing, impact resistance, rather bending than folding, large drainage, beautiful and durable after hot-dip galvanizing treatment, anti-corrosion, it has the incomparable advantages of cast iron cover.

And the use of hinge connection or the use of hook connection, etc., easy to open, and with anti-theft function.

The gutter cover plate is a device used to cover the gutter, which can effectively prevent debris, garbage, etc. from entering the gutter and ensure the smooth flow of the gutter. When installing the gutter cover, it is necessary to pay attention to the specification of the aperture size to ensure its normal use and safety.

First of all, the aperture size of the gutter cover plate should meet the provisions of the relevant national standards. According to the provisions of the Code for the Design of Urban Drainage Facilities (GB 50014-2016), the aperture size of the gutter cover plate should be determined according to the design flow rate of the gutter and the width of the gutter. Generally speaking, the aperture size should be greater than or equal to the design flow rate of the drain, and the width of the drain should also be taken into account to ensure the stability and safety of the drain cover.

Secondly, the aperture size of the gutter cover plate should also take into account the special requirements of the use environment. For example, in some places that require anti-slip, such as parking lots, sidewalks, etc., the aperture size of the gutter cover plate should be appropriately reduced to increase its anti-skid performance. In some places that need ventilation, such as underground garages, underground passages, etc., the aperture size of the drainage ditch cover plate should be appropriately increased to increase its ventilation performance.

Finally, the aperture size of the gutter cover should also take into account the service life and maintenance costs. In general, the smaller the aperture size, the longer the service life of the gutter cover, but the corresponding increase in maintenance costs. Therefore, when determining the aperture size of the gutter cover, it is necessary to comprehensively consider the use environment, service life and maintenance cost and other factors to achieve the best use effect and economic benefits.

In short, the aperture size specification of the gutter cover plate is an important guarantee to ensure its normal use and safety. When selecting and installing the gutter cover, it is necessary to reasonably determine the aperture size according to the actual situation and the provisions of relevant standards to ensure its stability, anti-slip and ventilation properties.

It means that the overall size of the groove cover plate is 300*400 mm.

There are many types of drainage ditch covers, because of the different reasons for the use of materials, there are metal, wood, plastic, and stone, and the latest composite plate is fiberglass, this kind of plate is not gold, non-stone, non-wood, non-plastic, but this kind of plate occupies half of the country as soon as it enters the market.

Comparison of the performance of FRP gutter cover plate with other materials:

1. Compared with metals: FRP drainage ditch cover plate is light in weight, easy to install, time-saving, labor-saving, and labor-saving, and the strength has also reached the quality of metal drainage ditch cover, and the FRP drainage ditch cover is still a good insulator, which greatly increases its safety performance.

2. Compared with wood: FRP drainage ditch cover is stronger than wood, and FRP drainage ditch cover is not easy to decay like wooden cover, and it needs to be maintained frequently on the color.

3. Compared with plastics: FRP drainage ditch cover plate in addition to being higher in quality than plastic grating, it also has non-combustible characteristics, and the fire performance is much higher than that of plastic covers.

4. Compared with stone: FRP drainage ditch cover has appropriate elasticity, while stone drainage ditch cover has no elasticity, once the load exceeds the load, it will break directly, which is a great hidden danger for the safety of use.

According to the different materials of the drainage ditch cover, we can generally divide the ditch cover into hot-dip galvanized ditch cover, stainless steel ditch cover, sprayed ditch cover, etc.

The different materials of the gutter cover are described as follows:

Flat bar: The material is Q235A or stainless steel, and there are ordinary flat type, anti-slip tooth type and cross-section I type. Commonly used specifications are *10, etc., and since they are based on factory direct sales, they are diversified in specifications.

Crossbar: round bar, twisted square bar, square bar or hexagonal steel made of Q235A or 304 stainless steel. Twisted square steel is made of drawing wire and twisting by square die, and its common specifications are *8mm, etc.

Concrete: The material is reinforced concrete, and the strength reaches C25 C30 C35. Strong load-bearing capacity, low cost and simple maintenance.

From Hangzhou Xiechuang Municipal Engineering.