Construction method of fan blade dynamic load test bed

Abstract

The application discloses a construction method of a fan blade dynamic load test bench, which comprises the following steps: embedding a fixing part in a bottom plate foundation and arranging a prestressed tendon bellows; pouring concrete in the bottom plate foundation and completing maintenance to form the bottom plate; arranging a truss required by an anchor cage on the bottom plate; installing prestressed steel strands and the prestressed tendon bellows of the dynamic load test bench; layer by layer binding and fixing the base steel bars and installing and fixing the construction hole steel formwork; pouring and constructing from the bottom surface of the bottom plate to the truss and a preset height area in sequence to form the base; arranging three groups of prestressed components in three axial directions of the base respectively and connecting the three groups of prestressed tendons; and alternatively tensioning the three groups of prestressed tendons according to a preset tensioning sequence so that the prestress of the three groups of prestressed tendons reaches 30%, 60% and 100% of a specified tensioning stress in sequence. The base fatigue resistance and crack resistance in three directions are improved, and the overall mechanical properties of the base are good.

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