再生混凝土無(wú)腹筋梁剪切強(qiáng)度尺寸效應(yīng)試驗(yàn)及仿真

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中圖分類號(hào)：TU528；TB115.1 文獻(xiàn)標(biāo)志碼：B

Abstract：To studythe size efect of shear strength of recycled concrete beams without web reinforcement，a group of physical tests are carried out under the condition of a constant shear span ratio. The results show that the shear strength of the test beam generally decreases with the increase in beam section height，and a regression formula of the shear strength is obtained，which can quantify this effect. The rationale and feasibility of the explicit finite element method solving the ultimate load of concrete structures are briefly demonstrated，and an explicit finite element simulation of test beams is carried out. The results show that an obvious and phenomenologically regular size fect of the shear strength of recycled concrete beams without web reinforcement，which can be beter simulated by the explicit finite element method.

Key words： structural engineering；static analysis；test；explicit finite element；recycled concrete （ReC）beam；shear strength；size effect

0引言

再生混凝土（recycledconcrete，ReC）[']是以廢棄混凝土加工形成的塊狀物為粗骨料，與細(xì)骨料、水泥、水等拌和形成的無(wú)機(jī)黏合材料。（剩余12772字）