一、引言予应力粘土空心砖桁条及楼板具有使用灵活、便于安装、运输、堆放和、隔热等技术经济指标好,适用范围广等突出优点。这种桁条及楼板的使用,充分体现了因地制宜,就地生产,就地使用的原则。为古老的砖瓦生产开辟了新的渠道。也为农用建筑开创了新的道路。本报告通过对予应力空心砖桁条及楼板的实物试验和力学分析,总结分析了这种新型材料的力学性能,和经济指标。证明它的强度、刚度、冲击都能满足设计与使用的要 I. Introduction Prestressed clay hollow brick purlins and floors have outstanding advantages such as flexible use, easy installation, transportation, stacking, heat insulation, and other technical and economic indicators. The use of such purlins and floors fully reflects the principle of local conditions, local production, and local use. It opened up new channels for the production of ancient bricks and tiles. It also created a new road for agricultural construction. This report summarizes the mechanical properties and economic indicators of this new type of material through physical testing and mechanical analysis of prestressed hollow brick purlins and floors. Prove that its strength, stiffness, impact can meet the design and use