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本刊1997年第1期谈到条形基础纵、横向墙交接处基础钢筋设置问题,我们认为还不太明确,下面就基础钢筋的设置谈几点意见。一、条形基础纵、横向交接处的配筋首先,应明确条形基础的类型是墙下条形基础,还是柱下条形基础,二者不能等同设置,要加以区别。1.墙下条形基础(1)L 形交接时,纵、横墙受力筋重叠布置,该部分分布筋取消,但需要与主筋搭接,见图1a。分布钢筋在搭接处的搭接长度约为300毫米。(2)T 形交接时,重叠处横墙受力筋间距加倍排至纵墙处,见图1b。
In the first issue of the Journal of 1997, we talked about the setting of reinforcing steel bars on the vertical and horizontal wall joints of the strip foundation. We think that it is not yet clear. Let’s talk about some suggestions on the setting of basic steel bars. 1. Reinforcement of vertical and horizontal junctions of strip foundation First of all, it should be clear whether the type of strip foundation is a strip foundation under the wall or a strip foundation under the pillar. The two cannot be set identically and must be distinguished. 1. Bar-shaped base under the wall (1) When the L-shape is transferred, the longitudinal and transverse walls are overlapped by force ribs. This part of the distribution ribs is removed but it needs to be overlapped with the main ribs, see Figure 1a. The overlap length of the distribution rebar at the overlap is approximately 300 mm. (2) When the T-shape is transferred, the distance between the tendons of the transverse wall at the overlap is doubled to the vertical wall, as shown in Figure 1b.