This work proposed reinforced concrete two-span continuous deep beams by replacing the well-known conventional reinforcement by reinforcing struts and ties only and omitting the concrete where the struts and ties do not pass through. The strut and tie modelling recommended by ACI 318M-14 was adopted herein. The struts and ties were reinforced as compressive and tensile members, respectively. Twelve specimens, which were divided into four groups, were cast and tested. In every group, the first specimen was a conventionally reinforced reference beam, the second specimen was a specimen in which only the stress paths of the struts and ties were reinforced, and the third specimen was the proposed frame. The strut-tie angle, specimen width and loading type were taken into consideration as main parameters. Generally, the proposals gave less load capacity than the reference specimens, but they remained higher than the design load. In addition, the proposed specimens significantly reduced the weight.

这项工作提出了钢筋混凝土两跨连续深梁，方法是仅通过加固支柱和拉杆来代替众所周知的传统钢筋，而在没有穿过支柱和拉杆的地方省略混凝土。本文采用了ACI 318M-14推荐的撑杆和系杆模型。支杆和系杆分别作为受压构件和受拉构件进行了加固。将十二个标本分为四组，进行铸造和测试。在每个组中，第一个标本是常规加固的参考梁，第二个标本是仅加固支柱和系杆的应力路径的标本，第三个标本是建议的框架。主要考虑支撑杆角度，试样宽度和载荷类型。一般来说，这些建议所提供的负载能力低于参考样本，但仍高于设计负载。此外，建议的标本大大减轻了重量。