论文部分内容阅读
研究结构物裂缝问题,对于保证建筑物的安全使用有着重要意义。今年六月下旬中国土木工程学会、中国建筑学会建筑结构委员会在上海召开的一次结构物裂缝问题的学术会议,着重对钢筋混凝土梁式结构(主要是屋面薄腹大梁),桁架式结构和混合结构产生裂缝的原因、特征、危害性及其防止,处理和加固措施以及裂缝计算等问题,进行了深入的分析研究;同时还结合在混凝土中渗入氯盐对构件裂缝的影响问题,作了专门讨论。 对于梁式结构,着重研究了比较普通的两种类型的裂缝,即斜裂缝和竖向裂缝。在讨论中,对于梁式结构允许竖裂缝出现,但
Studying structural cracks is of great significance for ensuring the safe use of buildings. In late June this year, the China Civil Engineering Society and the Architectural Structure Committee of the Chinese Architectural Society held a conference on structural cracks in Shanghai focusing on reinforced concrete girder structures (mainly thin roof girders), truss structures and hybrid structures. The causes, characteristics, hazards and their prevention of cracks, treatment and reinforcement measures, and crack calculations were analyzed in depth. At the same time, the effect of infiltration of chloride salts into concrete on the cracking of components was discussed. . For beam structures, two common types of cracks, namely oblique cracks and vertical cracks, were studied emphatically. In the discussion, vertical cracks are allowed for beam structures, but