Method for calculating solar radiation amount of various components in space structure

Abstract

The invention provides a method for calculating the solar radiation amount of various components in a space structure, which comprises the following steps of: establishing a calculation model, a modelcoordinate system and a light coordinate system according to each rod system component in the space structure; carrying out coordinate system transformation on each element in the calculation model;carrying out bounding box detection on plane projections of any two rod system components in the space structure in a light coordinate system; determining the shielding relation between any two rod system components; for any two rod system components with a shielding relationship, calculating to obtain a sunshine shadow interval formed by one rod system component on the surface of the other rod system component; calculating to obtain a direct solar radiation coefficient of any rod system component; according to the direct solar radiation coefficient of each rod system component, calculating toobtain the solar radiation quantity received by the surface of each rod system component in unit time at a preset moment. By applying the method, the solar radiation quantity of various components inthe space structure can be calculated.

Description

technical field [0001] The present application relates to the technical field of building structures, in particular to a method for calculating the amount of solar radiation of various components in a space structure. Background technique [0002] Long-span spatial structures are usually used in large-scale public buildings (such as gymnasiums, exhibition halls, etc.), and have the characteristics of large structural scale and wide plane range. At the same time, during the long construction phase, long-span spatial structures often have to withstand complex environmental effects and experience various changes in boundary conditions. Since the above-mentioned structures are generally in an open-air environment during the construction process and lack the protection of the enclosure structure, the diurnal temperature change dominated by solar radiation will generate a transient non-uniform temperature field in the structure, which will cause a non-negligible temperature effect...

AI Technical Summary

Problems solved by technology

[0006] However, the existing occlusion relationship judging methods in the current prior art are also only applicable to planes: first, the plane needs to be refined into a large number of small units with regular shapes (for example, rectangles or triangles), and then through a series of spatial position Judging with the geometric relationship, distinguishing and determining whether each small unit is occluded

Since each small unit has only two states of being occluded and not being occluded, it is necessary to divide the plane very finely to obtain a more ideal result; however, too many small units will reduce the calculation efficiency

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