A concrete storage tank structure comprises a tank including a floor slab having a periphery and a wall having inner and outer faces extending upwardly from the floor slab at a position adjacent the periphery of the latter. The tank structure further includes a shear pad extending outwardly away fro
A concrete storage tank structure comprises a tank including a floor slab having a periphery and a wall having inner and outer faces extending upwardly from the floor slab at a position adjacent the periphery of the latter. The tank structure further includes a shear pad extending outwardly away from the tank from a position adjacent a lower portion of the outer face of the wall. The shear pad and the tank are positioned relative to one another in such a way that a space is provided therebetween and a number of elongated flexible connecting elements are arranged so as to extend through the space in interconnecting relationship relative to the shear pad and the tank. A strip of resilient neoprene elastomeric material is disposed in the space. The shear pad is thus flexibly attached to the tank in such a way that the forces imposed on the wall of the tank by the shear pad during movement of the tank during use are minimized.
대표청구항▼
1. A storage tank structure that is resistant to sliding or damage when subjected to external forces imposed thereon as a result of backfilling or movement of adjacent earth comprising: a storage tank including (1) a floor slab lying on a ground surface and having a periphery, and (2) a wall extendi
1. A storage tank structure that is resistant to sliding or damage when subjected to external forces imposed thereon as a result of backfilling or movement of adjacent earth comprising: a storage tank including (1) a floor slab lying on a ground surface and having a periphery, and (2) a wall extending upwardly from a position on said floor slab adjacent said periphery, said wall having an outer face;a shear pad extending outwardly away from said tank from a position adjacent a lower portion of said outer face,said shear pad and said tank being positioned relative to one another in such a way that a space is provided therebetween,a plurality of elongated flexible connecting elements extending through said space in a direction outwardly away from said outer face, said elements being disposed in interconnecting relationship relative to the shear pad and the tank,said space being disposed outwardly of said periphery in a position to provide room for flexing of the shear pad relative to the tank when said external forces are imposed on the tank. 2. A storage tank structure as set forth in claim 1, wherein said wall and said floor slab are monolithic. 3. A storage tank structure as set forth in claim 1 or claim 2, wherein said shear pad and said floor slab are generally coplanar. 4. A storage tank structure as set forth in claim 1, wherein said tank structure includes a resilient elastomeric material disposed in said space, and wherein said flexible connecting elements extend through said elastomeric material. 5. A storage tank structure as set forth in claim 1, wherein said flexible connecting elements comprise steel cables. 6. A storage tank structure as set forth in claim 1, wherein said flexible connecting elements are provided with a corrosion resistant coating. 7. A storage tank structure as set forth in claim 5, wherein said flexible connecting elements are provided with a corrosion resistant coating. 8. A storage tank structure as set forth in claim 1, wherein said tank and said shear pad are each constructed of concrete and wherein a plurality of said flexible connecting have one end embedded in said shear pad and an opposite end embedded in said tank. 9. A storage tank structure as set forth in claim 3, wherein said tank and said shear pad are each constructed of concrete and wherein a plurality of said flexible connecting have one end embedded in said shear pad and an opposite end embedded in said tank. 10. A storage tank structure as set forth in claim 9, wherein said flexible connecting elements comprise steel cables. 11. A storage tank structure as set forth in claim 10, wherein said flexible connecting elements are provided with a corrosion resistant coating. 12. A storage tank structure as set forth in claim 11, wherein said tank structure includes a resilient elastomeric material disposed in said space, and wherein said flexible connecting elements extend through said elastomeric material. 13. A storage tank structure as set forth in claim 1 or claim 2, wherein said wall is generally cylindrical. 14. A method for construction of a storage tank structure that is resistant to sliding or damage when subjected to external forces imposed thereon as a result of backfilling or movement of adjacent earth comprising: erecting a storage tank including a floor slab having a periphery and a wall extending upwardly from said floor slab at a position on the floor slab adjacent said periphery, said wall having an outer face, said floor slab lying on a ground surface;forming a shear pad and positioning the same so as to extend outwardly away from said tank from a position adjacent a lower portion of said outer face and so as to provide a space between the shear pad and the tank; andsupplying an elongated flexible connecting element and arranging the same (1) so as to extend through said space in a direction outwardly away from said outer face and (2) in interconnecting relationship relative to the shear pad and the tank,said space being disposed outwardly of said periphery in a position to provide room for flexing of the shear pad relative to the tank when said external forces are imposed on the tank. 15. A method for construction of a storage tank structure that is resistant to sliding or damage as set forth in claim 14, wherein said wall and said floor slab are formed monolithically. 16. A method for construction of a storage tank structure that is resistant to sliding or damage as set forth in claim 14 or claim 15, wherein said shear pad and said floor slab are generally coplanar. 17. A method for construction of a storage tank structure that is resistant to sliding or damage as set forth in claim 14, wherein said tank structure includes a resilient elastomeric material disposed in said space, and wherein said flexible connecting elements extend through said elastomeric material. 18. A method for construction of a storage tank structure that is resistant to sliding or damage as set forth in claim 14, wherein said flexible connecting elements comprise steel cables. 19. A method for construction of a storage tank structure that is resistant to sliding or damage as set forth in claim 14, wherein said flexible connecting elements are provided with a corrosion resistant coating. 20. A method for construction of a storage tank structure that is resistant to sliding or damage as set forth in claim 18, wherein said flexible connecting elements are provided with a corrosion resistant coating. 21. A method for construction of a storage tank structure with that is resistant to sliding or damage as set forth in claim 14, wherein said tank and said shear pad are each constructed of concrete and wherein said flexible connecting element has one end embedded in said shear pad and an opposite end embedded in said tank. 22. A method for construction of a storage tank structure that is resistant to sliding or damage as set forth in claim 16, wherein said tank and said shear pad are each constructed of concrete and wherein said flexible connecting element has one end embedded in said shear pad and an opposite end embedded in said floor slab. 23. A method for construction of a storage tank structure that is resistant to sliding or damage as set forth in claim 21, wherein said flexible connecting elements comprise steel cables. 24. A method for construction of a storage tank structure that is resistant to sliding or damage as set forth in claim 23, wherein said flexible connecting elements are provided with a corrosion resistant coating. 25. A method for construction of a storage tank structure that is resistant to sliding or damage as set forth in claim 24, wherein said tank structure includes a resilient elastomeric material disposed in said space, said flexible connecting elements extending through said elastomeric material. 26. A method for construction of a storage tank structure that is resistant to sliding or damage as set forth in claim 14 or claim 15, wherein said wall is generally cylindrical. 27. A storage tank structure that is resistant to sliding or damage when subjected to external forces imposed thereon as a result of backfilling or movement of adjacent earth comprising: a tank including (1) a floor slab lying on a ground surface and having a periphery, and (2) a wall extending upwardly from a position on said floor slab adjacent said periphery, said wall having an outer face; anda shear pad extending in a direction outwardly away from said tank from a position adjacent a lower portion of said outer face,wherein said shear pad and said tank being positioned relative to one another in such a way that a space is provided therebetween,said shear pad being flexibly attached to said tank by elongated flexible structure extending through said space between the tank and the shear pad in said direction, said elongated flexible structure being arranged to facilitate independent movement of the shear pad relative to the tank during shifting of the tank and such that any forces imposed on the wall of the tank are minimized when the tank is subjected to said external forces, andsaid space being disposed outwardly of said periphery in a position to provide room for flexing of the shear pad relative to the tank when said external forces are imposed on the tank.
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