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在施工现场,准确计算木桁架端头L_1、L_2这两螺栓的长度,一般有两种方法:一是用角度关系套用三角函数做运算,这种方法,比较麻烦;另一种方法是弹出大样,测量实际长度,然后进行备料加工,但要求弹样必须准确。为了简化计算过程,我们总结出了一个经验计算公式。通过几年的工作实践与实样验证,证明公式准确无误,能满足要求。
In the construction site, accurately calculating the length of two bolts L_1, L_2 of the end of the wooden truss, there are generally two methods: First, use the trigonometric function to perform calculations with the angle relationship, this method is more troublesome; the other method is to eject large In this case, the actual length is measured and then the stock preparation process is performed, but the spring must be accurate. In order to simplify the calculation process, we have summed up an empirical calculation formula. Through several years of work practice and actual sample verification, it has been proved that the formula is accurate and can meet the requirements.