US1850243A - Floating frame for reduction of road vibration - Google Patents

Description

March 22, 1932.

A. SCHNEIDER FLOATING FRAME FOR REDUCTION OF ROAD VIBRATION Filed May 9, 19 29 Patented Mar. 22, 1932 I NETE ANTON scrmnrnnn, or ESCHELBACH, BADEN, GERMANY FLOATING FRAME FOR nnnocrlon OF'BOAD VIBRATION Application filed May 9, 1929, Serial No. 3fi l,,76, a nd in Germany May 18, 1928".

Present methods of road construction,

whose substructure consists of layers of road metal, concrete, stones and similar material, have the disadvantage, that the vibration cause on the surface of the road by heavy passing vehicles, coupled with the recurring seasonal swelling and sinking of the earth fort to the occupiers of the dwellings thus shaken and cracked.

By this invention such defects are greatly reduced or entirely eliminated. Wedgeshaped rib supports movably connected with each other are arrangedin the longitudinal direction of the road below the cover of the road. These supports are like rails arranged at. equal distances apart parallel to each other and connected with the road surface. By this arrangement, which is like a floating street frame the shearing forces of rolling loads are absorbed and the vibrations are thus reduced or done away with, the vibration waves being distributed over a great street length where the last outrunners of the shearing forces terminate in the points of the wedge-shaped rib supports.

Presumbly no vibration coming from the road will shake the buildings on either side of it, because the shearing forces in the road bed are carried along the longitudinal direction and are thus prevented from exerting any lateral effect.

The supports are ribs joined one to the other as high webs, the lower parts of said webs being waved, serrated, straight or of other shape, and automatically dig themselves into the ground like long roots.

Thus earth-channels are formed within the solid rib frames within which the expanding and contracting earth masses can spend their effects without influencing the road surface.

An embodiment of the invention is illustrated b way of example in the accompany ing drawings in which: Fig. 1 shows a side view of the rib-like supt i Fig.:2'is a cross section through the highest rib-point of each rod. F ig. 3 shows in top plan View the support asit liesin the ground. j

Fig. 4 shows a. means of-connecting two supports; Fig. 5 shows in top plan view a complete support element without enlarged head joint as'may'be used for fiX'edin roads. Fig. (Sis a cross-section of a road the embedded supports. The faces a, a and a of the end a serve as a connection piece and b the surfacesb, Z2 b and Z9 on the end 6 of the support serve as howing beds and abutments for two adjoiningsupportsfwhichmutually take up the shearing forces which converge from the road surface.

The head end I) of one support is inserted in the recesses f and f in the head of the preceding support and secured in position by means of a tie rod 0 and bolts d. The end 6 of the adjoining support rests securely between the arms f 7, f, 7, which also positively prevent any shifting in lateral direc tion.

The support ribs 9 penetrating into the ground as shown in Figs. 2 and 6, may be v wave-shaped as shown by the curve g, serrated or of other suitable shape according to the nature of the ground. They are firmly connected to the road covering 9 as shown in Fig. 6. j The road surface coveringmay be made in one piece, or composed of several sections.

I claim 1. A vehicle road construction comprising a concrete road bed, a plurality of ribs integral with said road bed, embedded in the substructure, extending lengthwise of the road, and spaced apart transversely of the road intermediate of the side edges of the latter, each of said ribs being formed of concrete sections wedge-shaped in vertical transverse section whereby they may dig them selves into the substructure when subjected to vehicle shocks, the end of each section overlapping the adjacent end of the next section, and the depth of each rib being greater at its end than at an intermediate point, and of greater depth than the spacing between adj acent ribs, and a tie rod extending lengthwise of each section, said tie rods being secured together at said overlapping ends.

2. A vehicle road construction comprising a concrete road bed, a plurality of comparatively deep concrete ribs integral with said road bed and embedded in the substructure, said ribs extending lengthwise of the road and spaced apart transversely of the road intermediate of the side edges of the latter, each of said ribs being wedge-shaped in vertical transverse section whereby they may dig themselves into the substructure when subjected to vehicle shocks, and being formed of concrete sections interlinked at their ends, androds extending between the jointure of the interlinked sections to effect a vertically flexible joint between adjoining rib sections.

8. A vehicle road construction comprising a concrete road bed, and a plurality of ribs integral with said road bed and embedded in the substructure, said ribs being wedgeshaped in vertical transverse section in such a way as to permit them to dig themselves into the substructure when subjected to vehicle shocks, and extending lengthwise of the road and spaced apart transversely of the road intermediate of the side edges of the latter, each of said ribs being formed of concrete sections interlinked at their ends.

In testimony whereof I affix my signature.

ANTON SCHNEIDER.

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