钢筋混凝土梁长期斜裂缝宽度的试验研究

Experimental Study on Long-Term Diagonal Crack Width of Reinforced Concrete Beams

本文对钢筋混凝土矩形梁在长期荷载作用下的斜裂缝宽度进行了试验研究。根据８根剪跨比为２．５的两点集中加载梁在长期荷载作用下的试验结果，提出了长期斜裂缝宽度的计算公式。公式计算值与实测结果吻合较好。

This paper reports the experimental study on long-term diagonal crack width of reinforced concrete beams with rectangular sections.Based on the analysis and measured results of eight beams subjected to long-term two point loads with a shear span ratio of 2.5,the formula for calculating the long-term diagonal crack width is proposed.The predicted