Adjustable Anchor System for Concrete Positioning
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Solution Overview
Problem
Anchor bolts placed in concrete during the initial pour often end up in the wrong location or not deep enough, leading to inadequate support for structures, necessitating replacement and additional drilling into cured concrete.
Innovation Solution
An adjustable anchor system comprising a sleeve and a moveable bolt, where the sleeve is positioned in the concrete and the bolt is inserted after the concrete has set, allowing for adjustment to achieve the necessary depth and secure the framing within the middle third of the wood structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If anchor bolts are placed in concrete during the initial pour, then the anchors are securely embedded in the foundation, but the exact location and depth are often incorrect or insufficient
Solution Approach 1:
The anchor system is divided into two separate components: a sleeve that is embedded in the concrete during the initial pour, and a bolt that is inserted and adjusted afterward. This segmentation allows the positioning function to be separated from the embedding function, enabling precise positioning without compromising the reliability of concrete embedding.
Solution Approach 2:
The sleeve is preliminarily embedded in the concrete at the correct location during the initial pour, creating a prepared receptacle that guides the subsequent bolt insertion. This preliminary action ensures that when the bolt is inserted later, it automatically achieves the correct position and depth without requiring additional drilling or guessing.
2Manufacturing precision
If new anchors are drilled into cured concrete, then the anchor location can be precisely positioned, but the anchor depth is insufficient and connection strength is reduced
Solution Approach 1:
By separating the embedding function (sleeve in concrete) from the anchoring function (bolt in sleeve), the system achieves both precise positioning and sufficient embedding depth. The sleeve provides the deep embedding in cured concrete, while the bolt provides the precise positioning and structural connection.
Solution Approach 2:
The sleeve acts as an intermediary component that transfers the loading between the bolt and the concrete foundation. It allows the bolt to be inserted into cured concrete at the precise location while maintaining the required embedding depth through the sleeve's presence in the concrete.
3Device complexity
If pre-placed anchors are used, then the foundation structure is simplified, but the anchors are often off-center and do not appropriately support the wall
Solution Approach 1:
The bolt is designed to be movable within the sleeve during installation, allowing it to be adjusted to the precise centering position required by building codes. This dynamic adjustment capability eliminates the need for complex pre-positioning mechanisms while maintaining simplicity in the overall foundation structure.
Solution Approach 2:
The sleeve is preliminarily positioned in the concrete with proper centering, and the bolt is preliminarily inserted to allow for adjustment. This preliminary setup enables fine-tuning of the bolt position to achieve precise centering without requiring complex pre-positioning of the entire anchor system.
4Manufacturing precision
If anchors are replaced after concrete pouring, then the correct position can be achieved, but additional drilling and time are required
Solution Approach 1:
The sleeve is preliminarily embedded in the concrete during the initial pour at the exact location where the anchor is needed. This preliminary action eliminates the need for additional drilling operations later, as the sleeve is already in place and the bolt can be simply inserted and adjusted, significantly reducing installation time.
Solution Approach 2:
The sleeve serves as a pre-installed intermediary that eliminates the need for additional drilling operations. It provides a ready-made receptacle for the bolt, allowing for quick insertion and adjustment without the time-consuming process of drilling into cured concrete.
Data Source
AI summary
A sleeve for creating a moveable anchor in concrete may include an open end and a closed end. A cavity may be formed within a rigid wall, and the cavity and the rigid wall may extend from the open end to the closed end. The sleeve may also include a hollow foot section formed at the closed end and in communication with the cavity. An adjustable anchor system may include a sleeve and a moveable bolt. The sleeve may include cavity extending from an open end to a closed end. The sleeve may also include a hollow foot section formed at the closed end and in communication with the cavity. The bolt may include a shaft disposed within the cavity and extending through the open end, and an angled portion disposed within the foot section.