US20090293389A1 - Cover for prestressed concrete member - Google Patents
Cover for prestressed concrete member Download PDFInfo
- Publication number
- US20090293389A1 US20090293389A1 US12/542,547 US54254709A US2009293389A1 US 20090293389 A1 US20090293389 A1 US 20090293389A1 US 54254709 A US54254709 A US 54254709A US 2009293389 A1 US2009293389 A1 US 2009293389A1
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- US
- United States
- Prior art keywords
- cover
- cavity
- structural member
- prestressed
- prestressed concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
A prestressed structural concrete system is disclosed that includes a prestressed concrete structural member and a cover configured to securely engage a cavity of the member to substantially seal the cavity from an outside environment. The cover includes a surface configured to achieve a substantially fluid tight seal with the concrete member.
Description
- This application is a continuation-in-part of and claims the benefit of U.S. patent application Ser. No. 11/873,593 filed Oct. 17, 2007, which is hereby incorporated by reference in its entirety.
- The present invention is directed to components for use with moldable building materials, and more specifically to covers for use with prestressed concrete members.
- The present invention relates to a prestressed structural concrete system including a prestressed concrete structural member and a cover configured to securely engage a cavity of the member and substantially seal the cavity from an outside environment.
- The present invention further relates to a cover for sealing a cavity of a prestressed concrete structural member. The cover includes at least one protruding feature configured to engage the cavity, and a sealing surface that substantially conforms to a surface of the prestressed structural member.
- The present invention yet further relates to a method for sealing a cavity of a prestressed concrete structural member. The method includes providing a prestressed concrete structural member comprising a cavity, and at least partially inserting a cover into the cavity to substantially seal the cavity from an outside environment.
- An advantage of an embodiment of the present invention is that the cover can quickly and easily be installed.
- Other features and advantages of the present invention will be apparent from the following more detailed description of the preferred embodiment, taken in conjunction with the accompanying drawings which illustrate, by way of example, the principles of the invention.
-
FIG. 1 is a perspective view of protected prestressed concrete structure system according to the disclosure. -
FIG. 2 is a partial top view of the protected prestressed concrete structure system ofFIG. 1 . -
FIG. 3 is a perspective view of an exemplary embodiment of a cover of the present disclosure. -
FIG. 4 is a side view of the cover ofFIG. 3 . -
FIG. 4A is a side view of an alternative embodiment of the cover ofFIG. 3 . -
FIG. 5 is a side sectional view of the cover ofFIG. 3 taken along line B-B. -
FIGS. 5A-5D show various alternative embodiments of section C ofFIG. 5 . -
FIG. 6 shows a top perspective view of an alternative embodiment of a cover according to the disclosure. -
FIG. 7 is a partial top view of the protected prestressed concrete structure system ofFIG. 1 having the cover inserted into the cavity of the member. - Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
-
FIGS. 1 and 2 show an exemplary embodiment of a prestressed structural concrete system (system) 5 according to the disclosure. Thesystem 5 includes a prestressed structural concrete member (member) 10 and acover 20. In one embodiment, themember 10 is a prestressed concrete building façade. Themember 10 includes an insert or fitting 12. The top half ofmember 10 is shown as transparent along the horizontal plane formed by line A-A for clarity. In one embodiment, fitting 12 may be a lifting fitting used for engaging lifting equipment (not shown) to liftmember 10 into a position. For example, the fitting 12 may be a lifting fitting such as those manufactured by Meadow Burke of Tampa, Fla. Thefitting 12 includes aninterface 13 for engaging lifting equipment. In this exemplary embodiment, onefitting 12 is disposed within themember 10. In another embodiment, themember 10 may include one ormore fittings 12. - In one embodiment, the
fitting 12 is cast within themember 10 as shown inFIG. 1 . In another embodiment, thefitting 12 may be disposed in themember 10 by temporarily disposing an object in the casting of themember 10, removing the object from themember 10 to form a void, and inserting and securing afitting 12 within the void. In yet another embodiment, a void may be formed in themember 10, such as by drilling with a masonry drill bit, and afitting 12 is then inserted into the void and secured therein. - As further shown in
FIG. 1 , themember 10 includes acavity 14. Thefitting 12 is at least partially disposed in thecavity 14. Thecavity 14 includes an opening 15 andcavity surface 16. In this exemplary embodiment, thecavity 14 has a generally oval cross-section or shape. In another embodiment, thecavity 13 may have a circular, square, rectangular or other geometric cross section or shape. - According to the present disclosure, the
cover 20 is configured to be at least partially inserted into thecavity 14. When thecover 20 is inserted into thecavity 14, thecover 20 releasably engages thecavity surface 16 to secure thecover 20 tomember 10. In such a manner, thecover 20 substantially seals thecavity 14 from exposure to the environmentproximate member 10. In one embodiment, thecover 20 protects thecavity 14 from exposure to rain and/or other precipitation that may enter thecavity 14 and cause damage tomember 10. For example, thecover 20 protects the cavity from rain that can later freeze and damage themember 10. In other examples, thecover 20 protects thecavity 14 from accumulating liquid, such as rain, that may provide a breeding environment for insects such as mosquitoes. In yet another example, thecover 20 substantially seals thecavity 14 from the outside environment, thereby inhibiting thecavity 14 from providing a breeding ground for vermin. -
FIGS. 3 and 4 shows an example of an exemplary embodiment ofcover 20. Thecover 20 includes abody portion 22 and a protrudingportion 28. Thebody portion 22 includes a raisedportion 26 and aseal portion 24. Theseal portion 24 includes aseal surface 25. Thecover 20 is formed of a resilient, non-corroding material, such as rubber, polymer, plastic, ceramic, metal, metallic alloys and combinations thereof. In another embodiment,cover 20 may include a pigment similar to that of themember 10 so as to effectively camouflage thecover 20. In another embodiment, seal portion ofbody 24 is formed of a material having enhanced resiliency compared to thebody portion 22. - In this exemplary embodiment shown in
FIGS. 3 and 4 , theprotruding portion 28 includes a first protrudingportion 28 a and a second protruding portion 28 b separated by adiscontinuity 34. The protrudingportion 28 includes anouter side wall 29. In this embodiment,outer side wall 29 is substantially perpendicular to sealsurface 25.Outer side wall 29 is selected to substantially conform to the shape of at least a portion of cavity surface 16 (FIGS. 1 and 2 ). In an alternative embodiment shown inFIG. 4A ,outer side wall 29 is tapered in fromplane 36 which is substantially perpendicular to sealportion 22 byangle 38. Thediscontinuity 34 reduces the force required to insert thecover 20 in thecavity 14 by providing a bending region for theprotrusions 28. - In another embodiment, the protruding
portion 28 may be a single solid protruding portion having nodiscontinuity 34. In another embodiment, the protrudingportion 28 may include two or moreprotruding portions 28 separated by one ormore discontinuities 34. -
FIG. 5 shows a cross section ofcover 20.FIGS. 5A , 5B, 5C and 5D show various alternative embodiments of theseal portion 24 as shown by partial section C. As shown inFIG. 5 , thecover 20 includes a recessedregion 32 is disposed betweenseal portion 24 andbody portion 22. The recessedregion 32 provides improved independent movement therebetween, which provides improved capability of theseal portion 24 to achieve conformal contact with member 10 (FIG. 1 ). -
FIG. 5A shows an alternative embodiment ofseal portion 24 including arib 40.Rib 40 protrudes from theseal portion 24.Rib 40 improves conformal contact withmember 10. As shown inFIG. 5A ,seal portion 24 includes asingle rib 40. In another embodiment,seal portion 24 may include one ormore ribs 40. -
FIG. 5B shows another alternative embodiment ofseal portion 24 including arecess 42. As shown inFIG. 5B ,seal portion 24 includes asingle recess 42. In another embodiment,seal portion 24 includes one or more recesses 42. In yet another embodiment,recess 42 may be filled with adhesive material. -
FIG. 5C shows another alternative embodiment ofseal portion 24 including a layer ofadhesive material 44. In one embodiment, theadhesive material 44 may be a caulk or double-sided adhesive tape to achieve a substantially fluid tight seal with the member 10 (FIG. 1 ). -
FIG. 5D shows yet another alternative embodiment ofseal portion 24 including an enhancedresilient portion 46 having a greater resiliency thanseal portion 24. - It is to be understood that each of these embodiments may include an application of
adhesive material 44, if desired, providing not only an improved seal, but also providing a technique to secure the cover to the concrete member without fasteners. However, if desired, cover 20 may be configured to receive mechanical fasteners, such as by forming apertures (not shown) inbody 22. -
FIG. 6 shows a top perspective view of an alternative embodiment ofcover 20. As shown inFIG. 6 , thecover 20 includes arecess 30.Recess 30 includessidewall 32 and protrusioninner sidewall 48. Therecess 30 enhances the ability of thecover 20 to conform tocavity 14 of member 10 (FIG. 1 ). -
FIG. 7 shows a top section view similar toFIG. 2 , however, inFIG. 7 , thecover 20 has been inserted incavity 14 ofmember 10. As shown inFIG. 7 , thesidewall 29 ofprotrusion 28 ofcover 20 has securely engagedcavity surface 16 ofcavity 14 ofmember 10 to securely releasably attachcover 20 tomember 10. As used herein, the term securely releasably attached means that a force is necessary to remove the cover from engagement with themember 10. For example, an operator would grip thecover 20 to pull the cover from thecavity 14 ofmember 10. In another example, an operator may use a tool to pry thecover 20 from thecavity 14 ofmember 10. -
Cover 20 forms a conformal contact with a corresponding surface ofmember 10, and in particular,seal surface 25 ofseal portion 24conformally contacts member 10 to substantially sealcavity 14 fromoutside environment 100. - While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (20)
1. A prestressed structural concrete system comprising
a prestressed concrete structural member comprising a cavity; and
a cover configured to securely engage the cavity and substantially seal the cavity from an outside environment.
2. The system of claim 1 , the prestressed concrete structural member further comprising a fitting at least partially disposed in the cavity.
3. The system of claim 1 , wherein the cover comprises at least one protruding feature configured to engage the cavity and a sealing surface that substantially conforms to a surface of the prestressed structural member.
4. The system of claim 1 , wherein the cover comprises a layer of adhesive material.
5. The system of claim 1 , wherein the cover comprises a rib.
6. The system of claim 1 , wherein the protruding feature comprises at least two protruding portions separated by a discontinuity.
7. The system of claim 1 , wherein the body is composed of a resilient material.
8. A cover for sealing a cavity of a prestressed concrete structural member, comprising
at least one protruding feature configured to engage the cavity; and
a sealing surface that substantially conforms to a surface of the prestressed structural member.
9. The cover of claim 8 , further comprising:
a layer of adhesive material in contact with the sealing surface.
10. The cover of claim 8 , further comprising:
a rib protruding from the sealing surface.
11. The cover of claim 8 , wherein the protruding feature comprises at least two protruding portions separated by a discontinuity.
12. The cover of claim 8 , wherein the body is composed of a resilient material.
13. A method for sealing a cavity of a prestressed concrete structural member, comprising:
providing a prestressed concrete structural member comprising a cavity;
at least partially inserting a cover into the cavity to substantially seal the cavity from an outside environment.
14. The method of claim 13 , wherein the prestressed structural concrete member further comprises a fitting at least partially disposed in the cavity.
15. The method of claim 13 , wherein the cover achieves a substantially fluid tight seal with the prestressed concrete structural member when the cover is securely engaged with the cavity.
16. The method of claim 13 , wherein at least one protruding feature of the cover releasably engages the cavity.
17. The method of claim 13 , wherein a sealing surface of the cover substantially conforms to a surface of the prestressed structural member to form a substantially fluid tight seal.
18. The system of claim 13 , wherein a layer of adhesive material is disposed between the cover and the prestressed concrete structural member to improve the seal between the cavity and the outside environment.
19. The system of claim 13 , wherein a rib protrudes from the cover and contacts the prestressed concrete structural member to improve the seal between the cavity and the outside environment.
20. The system of claim 13 , wherein the protruding feature comprises at least two protruding portions separated by a discontinuity, the protruding portions including a surface that conforms to and engages a surface of the cavity to securely engage the cover to the prestressed concrete structural member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/542,547 US20090293389A1 (en) | 2007-10-17 | 2009-08-17 | Cover for prestressed concrete member |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/873,593 US20090100768A1 (en) | 2007-10-17 | 2007-10-17 | Cover for prestressed concrete member |
US12/542,547 US20090293389A1 (en) | 2007-10-17 | 2009-08-17 | Cover for prestressed concrete member |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/873,593 Continuation-In-Part US20090100768A1 (en) | 2007-10-17 | 2007-10-17 | Cover for prestressed concrete member |
Publications (1)
Publication Number | Publication Date |
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US20090293389A1 true US20090293389A1 (en) | 2009-12-03 |
Family
ID=41378019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/542,547 Abandoned US20090293389A1 (en) | 2007-10-17 | 2009-08-17 | Cover for prestressed concrete member |
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US (1) | US20090293389A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3804932A3 (en) * | 2019-08-21 | 2021-09-29 | Peikko Group Oy | Cup device for supporting a headed lifting stud in a concrete product |
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US7065925B2 (en) * | 2004-02-11 | 2006-06-27 | Universal Form Clamp Of Chicago, Inc. | Concrete anchor |
US20050183349A1 (en) * | 2004-02-11 | 2005-08-25 | Universal Form Clamp Co., Inc. | Concrete anchor |
US7455192B2 (en) * | 2004-11-03 | 2008-11-25 | Illinois Tool Works Inc. | Overmolded adhesive hole plug |
US20080104897A1 (en) * | 2006-11-06 | 2008-05-08 | Lang Frank J | Cover for pockets in precast concrete panels |
US7441375B2 (en) * | 2006-11-06 | 2008-10-28 | Lang Frank J | Cover for pockets in precast concrete panels |
US7827759B1 (en) * | 2007-01-04 | 2010-11-09 | Audrey Barnes | Method of repairing concrete floors and system for same |
US20080209829A1 (en) * | 2007-01-05 | 2008-09-04 | Lucas Thomas E | Anchor plug |
US20090100768A1 (en) * | 2007-10-17 | 2009-04-23 | High Industries, Inc. | Cover for prestressed concrete member |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3804932A3 (en) * | 2019-08-21 | 2021-09-29 | Peikko Group Oy | Cup device for supporting a headed lifting stud in a concrete product |
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