Underslung Shoring for Cantilevered Concrete Edge Repairs
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Solution Overview
Problem
Current shoring apparatuses for concrete edge repairs in multi-story buildings are inefficient as they require a lower balcony for support, making it impractical for unique or curved structures, and complicate the form design to support cantilevered concrete, with no existing solution that can shore up forms without a lower structural support.
Innovation Solution
A shoring apparatus with a structural main member and flanges that can be bolted to the underside of a balcony structure, extending cantilevered to support forms and transfer loads to the apparatus, allowing for secure attachment with removable fasteners and spacer beams to span the apparatus and form, enabling edge repairs without a lower structural support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pole shores are used to support forms for concrete edge repairs, then the forms can be supported at a single point, but the apparatus requires a lower balcony for structural support and cannot be used in multi-story buildings without solid flooring
Solution Approach 1:
The shoring apparatus transitions from vertical support (pole shores requiring lower floors) to horizontal attachment by securing to the underside of the balcony structure. This dimensional shift allows the apparatus to anchor in the horizontal plane rather than relying on vertical stacking, enabling use in multi-story buildings without solid flooring below.
2Device complexity
If pole shores are used to support forms, then support is provided at a single point, but additional complex structure is required in the forms to support cantilevered concrete
Solution Approach 1:
The shoring apparatus is installed and secured to the balcony underside before the concrete is poured. This preliminary positioning establishes the support structure in advance, allowing the form to be simple while the pre-installed apparatus bears the cantilevered concrete load during curing.
3Productivity
If pole shores are used for concrete edge repairs, then individual adjustment is possible, but the process is time-consuming and only one balcony can be repaired at a time
Solution Approach 1:
The shoring apparatus is divided into modular components including separate attachment assemblies that can be independently installed on multiple balconies. This segmentation enables parallel installation and repair operations across multiple balconies simultaneously, dramatically increasing productivity compared to sequential pole shore installation.
4Manufacturing precision
If pole shores are used to support forms, then the apparatus can be positioned precisely, but the form design must be more complex to support cantilevered portions
Solution Approach 1:
The support function is extracted from the form structure itself and placed into a separate, dedicated shoring apparatus. This separation allows the form to remain simple while the extracted support system provides precise positioning and handles the cantilevered concrete support requirements.
Data Source
AI summary
The present invention discloses a shoring apparatus, a system incorporating the apparatus, and a related method utilizing the apparatus in the system for an improvement in conducting concrete edge repairs in multi-story buildings. The shoring apparatus includes a structural member and attachment features that are configured to make the shoring apparatus attachable to the underside of a concrete structure that is to undergo edge repairs. The shoring apparatus is advantageous over shore poles in that they securely support the concrete form without relying on a lower structure to counter the load of the structural repair.