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塔吊轨道在铺设中,采用报废的履带板组焊后取代枕木,经实际使用表明,效果很好,既起到以钢代木、节省木材的作用,又简化了铺轨工艺。1.结构构造用2块报废的T203型履带板对焊,见图1,为增大接触面积,减小接地比压,在对焊后的履带板两端分别焊接一块70毫米宽的钢板条,并在正中加一根L50×50角钢加强筋。利用原履带板上的履刺,焊接4块带孔固定块,作为安装夹轨板用。夹轨板的形状与普通轨道压板相同。2.可行性分析组合钢枕板同一般常用规格的短枕木比较,接地面积较枕木大10～20%左右,而枕距基本相同,承载能力足够。计算时,力学模型可视为弹性基础上四边自由的受弯薄板。实际上,由于同受载情况下地基的沉陷量比较,板的变形极小,可以略去不计,可以认为板仅产生刚体位移。实验表明,这种
In the laying of the tower crane track, the use of scrapped track plate group after welding to replace the sleeper, the actual use shows that the effect is very good, not only to play the role of the wood to replace wood, save wood, but also simplifies the laying process. 1.Structural construction Two butted T203 track shoe butt welds are shown in Fig. 1. In order to increase the contact area and reduce the ground specific pressure, a 70 mm wide steel strip is welded on both ends of the track shoe after welding. , And in the middle plus a L50 × 50 angle steel ribs. Using the trawls on the original track shoe, weld the four fixed blocks with holes as the mounting clip rail plate. The shape of the clamping rail is the same as the ordinary rail pressing plate. 2. Feasibility analysis Compared with the commonly used specifications of short sleepers, the feasibility analysis combined floor contact area is 10~20% larger than the sleepers, and the pillow distance is basically the same, and the bearing capacity is sufficient. When calculating, the mechanical model can be considered as a flexed sheet with four free edges on the basis of elasticity. In fact, due to the subsidence of the foundation under load, the deformation of the slab is minimal and can be neglected. It can be assumed that the slab only generates rigid body displacements. Experiments show that this kind of