Method for testing wind load of external thermal insulation system of building

Abstract

The invention relates to a method for testing the wind load of an external thermal insulation system of a building. The method comprises the following steps of: cutting a silica gel sponge board into a cubic board block; coating an adhesive on the front and back side surfaces of the cubic block of the silica gel sponge board; uniformly sticking the two side surfaces to the surface of the tested thermal insulation system fixed on a base wall and the surface of a pulling board respectively and tightly compacting, wherein the pulling board is connected with a tension device through a spring; pulling the spring, the pulling board and the cubic block of the silica gel sponge board through the tension device so as to apply tension to the tested thermal insulation system; and testing the wind load by taking the damage of the tested thermal insulation system as the base point. In the method, a flexible tensile intermediate combining the spring and the foaming silicon rubber sponge is adopted,wherein the silicon rubber sponge material has higher strength, tests prove that the tensile strength is over 0.4MPa and thus the material can meet the strength requirement of the tensile test of theconventional external thermal insulation system. Meanwhile, a horizontal tension test method is adopted instead of the vertical tension of the prior art and better meets the practical detection requirements.

Description

technical field [0001] The invention relates to the field of wind load testing of exterior walls in the construction industry, and particularly designs a wind load testing method for the external thermal insulation system of thermal insulation building exterior walls. Background technique [0002] There are many factors that affect wind loads. Differences in various ground conditions in different regions, changes in the conditions of the structure itself, and differences in shape and surface roughness in different areas of the same building will all lead to changes in the wind load on the structure. Under the action of wind load, the structure will produce a certain movement, which in turn will cause the change of wind pressure on the surface of the structure, coupled with the mutual influence between adjacent buildings, all make the determination of the wind load on the structure quite complex. [0003] According to the literature, there are mainly four methods for wind lo...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a wind load test method for external thermal insulation systems of building exterior walls. Wind loads for panel systems, extruded polystyrene panel systems, polyurethane systems, etc.

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