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This type of mounting is the more used form of bracket in the early photovoltaic project. The bracket is set up with long and short legs before and after the bracket, and the legs are bolted to the foundation respectively, one end of the diagonal brace is supported at the foot of the long column, and the end of the middle part is a diagonal beam, and the longitudinal direction is supported by purlins on the diagonal beam, which constitutes the solar panel mounting system. The structure is a geometrically invariant system without redundant constraints.
This type of pv racking structure is commonly used PV racking column foot and foundation connection, this structural form, if considered according to the foot articulation, the bracket deformation is larger, the amount of steel is higher, and the frameless battery module breakage rate due to bracket deformation is very high.
2. Solar Herringbone Bracket
Herringbone bracket follow the structural mechanics of the "three rhombus rule", that is: three reinforcement is not in a straight line, three single hinges two by two connected to an invariant system collection, there is no redundancy constraints. It is also a simple binary stent form, due to the cancellation of the long leg and short leg settings, so the amount of steel is smaller, the form of the stent is simpler, construction and installation is more convenient. However, this kind of solar bracket also has certain limitations; because it can not be adjusted in the height direction of the bracket, so this kind of bracket is only suitable for terrain that is flat and has little undulation; because the bracket cancels the long and short legs, so that the length of the transverse sorghum cantilever becomes longer, and the upper load increases, and the bracket produces a certain degree of increase, which can cause hidden problems to the stability of the photovoltaic bracket system and the breakage rate of frameless photovoltaic modules, so the herringbone The bracket is only used in the engineering environment where the wind load is small.
3、Single-column Solar Support
Single-column PV support structure mainly consists of key components such as main beam, secondary beam, front support, rear support, steel column, hoop and monopile foundation, etc. For example, the single-column PV support structure adopts double diagonal support to support the main and secondary beams, so that the PV panels, the steel diagonal support and the single-column foundation are connected through the hoop, which achieves the characteristics of simplicity and high efficiency. At the same time single-column photovoltaic support structure occupies less space, can make full use of the land between the front and rear rows of the photovoltaic string single-column photovoltaic support structure is double-column photovoltaic support structure before and after the support in the elongated version of the single-column photovoltaic support structure and single-column photovoltaic support structure increased hoops; as a result of the use of steel columns and other components, so with a double-column photovoltaic bracket compared to the single-column support structure of the steel consumption is significantly higher.
