Bending behaviour of insulated ribbed plywood plate during drying of accumulated moisture

3rd International Conference on Innovative Materials, Structures and Technologies

Kukule, A.^1 ; Rocens, K.^1

Riga Technical University, Institute of Structural Engineering and Reconstruction, Kipsalas Street 6A/6B, Riga

LV 1048, Latvia^1

关键词: 4-point bending;    Ambient air;    Bending behaviour;    Building envelopes;    Experimental verification;    Initial mass;    Surface exposure;    Total mass;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/251/1/012022/pdf
DOI  :  10.1088/1757-899X/251/1/012022

来源: IOP

【 摘 要 】

The current paper presents the results of an experimental verification of the methodology to evaluate lasting moisture impact on ribbed plates. Conditions of building envelope for ribbed plywood plate with polystyrene insulation were simulated. Internal moisture due the surface exposure to different temperatures and ambient air humidity was accumulated. Within ten months the total mass of the plate increased by 9.7%. After that the plate was dried until its initial mass was reached. Within these three months the plate was loaded in 4 point bending to evaluate its deflection depending on accumulated moisture. After the experiment it was found that the methodology is applicable to assess the effects of lasting moisture impact.