POST TENSIONED FOUNDATIONS, APPARATUS AND ASSOCIATED METHODS
First Claim
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1. A post tensioned foundation installation system comprisinga mandrel including a first end and a second end, the first end including a compaction element and the second end including a power tool attachment section;
- a transversal rod guide conduit originating at the compaction element and terminating at or before the power tool attachment point; and
an outer skin defining an aggregate feed cavity, wherein the outer skin includes at least one aggregate port.
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Abstract
Described herein are shallow post tensioned foundation systems for mounting light to medium weight structures. Methods of installation are also described. The systems, apparatus and methods described can reduce waste, increase efficiency and reduce cost and installation/construction time.
20 Citations
21 Claims
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1. A post tensioned foundation installation system comprising
a mandrel including a first end and a second end, the first end including a compaction element and the second end including a power tool attachment section; -
a transversal rod guide conduit originating at the compaction element and terminating at or before the power tool attachment point; and an outer skin defining an aggregate feed cavity, wherein the outer skin includes at least one aggregate port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A post tensioned foundation installation system comprising
a mandrel including an outer skin having a first end and second end, the first end including a first portion to attach compaction element and the second end including a second portion to attach drive adapter; -
a transversal rod guide originating at first end, extending through the mandrel, and held in place by at least one transversal rod guide support; at least one interior compaction element attached to the transversal rod guide and the outer skin to assist in compacting aggregate against the side wall of a column associated with at least one side aggregate port in the outer skin; and a tensioning rod and at least one reaction plate. - View Dependent Claims (12, 13)
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14. A method of installing a post tensioned foundation comprising the steps:
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a. filling a feed cavity associated with a post tensioned foundation installation device driven and rotated to a depth with at least one type of aggregate; b. leaving a bottom reaction plate attached to a tensioning rod at the depth; c. moving the post tensioned foundation installation device upward to a predetermined height thereby creating a void and releasing the at least one type of aggregate into the void while rotating the post tensioned foundation installation device until a specified amount of aggregate is deposited around a perimeter of a mandrel; d. compacting the at least one type of aggregate within the void thereby creating compacted aggregate; e. securing a top reaction plate to the tensioning rod over the compacted aggregate; and f. installing the post tensioned foundation. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification