| 摘要 |
A concrete ground apparatus for an apartment house is provided to improve fatigue strength of a ground line connection part by integrally forming the ground line connection part and a phosphor bronze wave spring. A lattice groove(32) is formed on an upper surface of a concrete block(30). A supporter(40) is inserted into a cross road of the lattice groove on the concrete block and seated on a bottom surface of the lattice groove. A support bar(44) having a cut groove is vertically formed at a central upper surface of the supporter. Insertion grooves are formed at a constant interval in upper and lower end portions of vertical and horizontal phosphor bronze wave springs(50,60) which are closely adhered to an inner wall of the lattice groove by elasticity. The insertion grooves are inserted into each other so that the phosphor bronze wave springs are coupled to each other in a lattice shape. A cross portion(70) of the coupled phosphor bronze wave springs is inserted into the cut groove formed in the support bar. An upper end of the support bar is inserted into a hole(82) formed in a central portion of a cap(80) inserted into the cross road. A ground line connection part(54) is led out of the concrete block.
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