摘要
通过对钢筋混凝土现浇楼板的有限元分析,提出用抗裂系数来评价现浇楼板在早期的裂缝状况,并针对楼板的不同部位采用对应的裂缝评价标准。结合某现浇楼板算例,计算和分析了其在板厚、施工荷载和温差等因素影响下的早期应力和抗裂系数,并提出了裂缝防治的对策与措施。
Based on the finite element analysis, the early crack condition of a cast-in-place reinforced concrete slab is evaluated by the crack resistant coefficient. The assessment criterion which associated the crack condition with different regions of the slab is presented. As an example, the stress and crack resistant coefficient of a cast-in-place reinforced concrete slab is computed and analyzed. The factors such as slab thickness, construction load and variation of temperatures are studied. Some suggestions and practical measures for crack prevention and control are also proposed, in the paper.
出处
《建筑科学》
2004年第5期43-48,55,共7页
Building Science
