广东省第六建筑公司广大职工几年来在科研、设计部门的支持帮助下,共试制了小型构件20多种,经过不断总结,目前广泛使用的有10种。据分析,使用槽形桁条与一般常用钢筋混凝土桁条比较,强度大,刚性好,防水性能高,每100米~2复盖面积重量减少52～57%,钢材节约47～52%,水泥节约 In the past few years, with the help of scientific research and design departments, the employees of the Sixth Construction Company of Guangdong Province have trial-produced more than 20 kinds of small components. After continuous summing up, there are 10 widely used products. According to the analysis, the use of grooved purlins compared with the commonly used reinforced concrete purlins, strength, rigidity, high water resistance, weight reduction per 100 meters to 2 coverage area of ​​52 ~ 57%, steel savings 47 ~ 52%, cement saving