现介绍一种较大芯孔的梁板芯模所采用的工具式木模施工技术。一、芯模的受力传力该种芯模采用了复合的三铰拱结构,在两侧新浇混凝土侧压力及孔顶混凝土自重力的作用下,芯模拱内一般为压应力,可采用抗压性能较好的木芯模;由于拱在竖向、横向产生推力,故采用双向的花篮螺丝拉紧。这种结构受力可靠且有效发挥材料作用。二、芯模的加工制作每根梁、板制作2套芯模,每套芯模长为 Now introduce a larger core hole beam core mold used by the tool-wood construction technology. First, the mandrel force transmission force The core model uses a composite three-hinged arch structure, both sides of the newly poured concrete side of the pressure and the top of the concrete under the effect of self-gravity, mandrel arch generally compressive stress may be The wood core mold with better compression performance is adopted; as the arch produces thrust in the vertical and horizontal directions, the two-way basket screw is used for tensioning. This structure is reliable and effective materials play a role. Second, the manufacture of mandrel Each beam, board production of 2 sets of mandrel, core length of each set