Cement roof bracket selection
The most common is a flat cement roof, and there are also a small number of arched cement roofs (such as granaries). Most of the flat cement roofs have an inclination of fewer than 10 degrees, which is convenient for rainwater to slide down.
Cement counterweight method
1.1 Pouring cement pier on cement roof, this is the most common installation method
Advantages: Stable without damaging the roof waterproofing Disadvantages: It takes a lot of labor and time, the cement pier needs more than a week of curing and curing time, and the bracket can be installed after the cement pier is completely cured, requiring a large number of prefabricated molds (cement molding).
1.2 Precast cement counterweight
Advantages: Compared with the time required for making cement pier, it can be set as a counterweight cement brick in advance, saving cement buried parts.
Steel Structure Link
It is said that during the "Battle of the Red Cliffs", Cao Jun used iron chains to increase the stability of the ship's links. The same principle applies flanges at the bottom end of the pillars of the bracket, and uses galvanized steel to connect several bracket arrays together, 500KW or even one megawatt. The above is a unit. By using the weight of the support array to increase wind resistance, only a few cement piers need to be made on the roof support for solar point to fix the large support array.
Advantages: Quick and easy installation and easy removal.
Disadvantages: the construction cost is too high, and the cost of the bracket is not less than 1 yuan per watt.
three. Chemical anchor bolt
For prefabricated floor workshops, the unit area is relatively large. A 5 cm thick cement layer can be made on the roof, and then the brackets can be fixed with chemical anchor bolts, which will not damage the roof waterproof layer when drilling. At present, there are only a few projects in China. Life is to be tested.
Advantages: anchoring without expansion force; easy construction; cost-saving.
Four. Installation of two-component rubber tendons for special power stations
Just stick it.
Advantages: Save time and effort; Save uprights.
Color steel tile roof bracket selection
The color steel tile factory building is easy to install, but the domestic color steel tile has a life span of about 10-15 years. It is difficult to overhaul after installing a photovoltaic power plant, and there are too many hidden dangers. Personally, most domestic color steel tile roof power plants are time bombs.
There are three kinds of color steel tiles most commonly: upright hem type, corner type, and ladder-type.
For upright hemming and angle-chipping color steel tiles, the wave crests of color steel tiles are mostly used, and special aluminum alloy fixtures are used to fix the support rails.
The life of color steel tiles is about 10-15 years, and the load capacity is 15-30kg per square. Most of them are installed by tiles , a small part is installed at an inclination.