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试验研究和分析剪切效应对碳纤维增强复合材料建筑楼板挠曲性能的影响。研究所用的CFRP楼板由薄壁板组成的多单元和开口型CFRP梁组成。这种楼板旨在改进低碳建筑业的绿色建筑,从而节约能源,降低CO2的排放。研究剪切效应对由薄壁板组成的两个单元的开口型梁弯曲性能的影响。研究包括分析和试验两部分的工作。使用公式计算剪切作用对两种不同荷载形式下CFRP楼板弯曲性能的影响并进行分析,并通过了按比例缩小的楼板模型试验的验证。研究发现,剪切效应对这种CFRP楼板弯曲性能的影响很大,所以设计CFRP楼板的建筑时需要检查其弯曲性能。为了进一步研究组合薄壁结构和其在CFRP相关建筑行业的实际应用,提出一个关于弯曲性能剪切影响和荷载-挠曲修正系数的截面形状系数。
Experimental study and analysis of shear effect on the flexural properties of carbon fiber reinforced composite building floor. The CFRP floor used in the study consisted of multi-unit, thin-walled CFRP beams with open ends. This floor is designed to improve green building in the low-carbon construction industry, thereby saving energy and reducing CO2 emissions. The effect of shear effect on the flexural behavior of two open-beam beams consisting of thin-walled panels was investigated. Research includes the analysis and testing of two parts of the work. The influence of shearing action on the flexural behavior of CFRP floor under two different loadings was calculated and analyzed using the formula and the validation of the scaled floor model test was adopted. The study found that the shearing effect has a great influence on the bending performance of this kind of CFRP floor, so the construction of CFRP floor needs to check its bending performance. In order to further study the combined thin-walled structure and its practical application in the construction industry related to CFRP, a cross-sectional shape coefficient about the shear effect of the bending property and the load-deflection correction coefficient is proposed.