In the design of aluminum screen structure, the general design criteria must be met, that is, on the basis of fully satisfying the functional requirements, to do safe and reliable, advanced technology, ensure the quality and economic rationality.
The purpose of structural calculation is to ensure that structural components can work safely and reliably under the action of service load, which should meet both the use requirements and economic requirements.
The general process of structural calculation is to calculate the internal force of each member according to the load borne by the proposed structural force scheme, and then calculate the internal force of each member according to the characteristics of the materials used, the structure and components of the entire aluminum screen and their connections, to see whether they meet the requirements of economy, safety, application and other aspects.
But from some field records, survey data and experimental data, the standard used in the calculation of actual load and structure under the load, between the mechanical properties of steel and material between the actual numerical value, calculate the cross section and steel calculated between the actual size, between stress value and the actual stress values, as well as the construction quality of the estimate and the actual quality, there is a certain difference, so the result of calculation is not necessarily safe and reliable.
In order to ensure the safety, the calculation results of aluminum screen structure design must have a certain degree of safety. The safety degree of building structure is the safety reserve that ensures the house or structure to work continuously under certain conditions of use. Only with this reserve can the structure be used normally under various adverse conditions.
