Shield Reinforcement Plate for Bolted Connection Strength
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Solution Overview
Problem
The existing metal cover connection systems are insufficient to handle increased loads beyond their initial design capacity, particularly in applications like malls that require support for additional structures such as plaster lining, electricity pipes, and air conditioning systems, due to limitations in the resistance of bolted connections.
Innovation Solution
The introduction of a Shield Reinforcement Plate that selectively reinforces specific areas of the connection, maintaining the standard thickness of the chord while enhancing the strength of the connection points with galvanized steel plates and strategically designed flaps to prevent rotation, allowing for increased load-bearing capacity without increasing the overall weight or cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the thickness of the plate is increased to improve resistance to crushing and tearing, then the resistance to these effects is improved, but the weight of the entire piece increases significantly
Solution Approach 1:
The patent applies local quality by reinforcing only the specific areas of the plate that require additional strength (connection zones with shields) while maintaining standard thickness in non-critical areas. This is achieved through locally attached reinforcement plates that provide enhanced resistance to crushing and tearing at connection points without increasing the weight of the entire plate structure.
Solution Approach 2:
The reinforcement solution is segmented into separate components: the base plate maintains its original thickness while independent reinforcement plates are attached only at specific connection zones. This segmentation allows strength enhancement where needed without globally increasing plate thickness and weight.
2Ease of manufacture
If reinforcement plates are attached with the same screws as the chord connections, then the installation is simplified, but rotational movement of the connection occurs under tensile and compression stresses
Solution Approach 1:
The patent applies preliminary action by providing dedicated anti-rotation flaps on the reinforcement plate before assembly. These flaps are positioned to engage with the chord structure in advance, preventing rotational movement from occurring under load. This preliminary structural arrangement ensures connection stability is built-in before stresses are applied.
Solution Approach 2:
The anti-rotation flaps create an asymmetric configuration that specifically counters the rotational forces generated by tensile and compression stresses in the diagonal connections. The flaps are positioned at specific locations to provide counterbalancing resistance to rotation while maintaining overall connection stability.
3Weight of moving object
If the chord thickness is maintained at standard levels, then the overall weight and cost are controlled, but the connection areas lack sufficient resistance to handle increased loads
Solution Approach 1:
The patent implements local quality by maintaining standard chord thickness throughout most of the structure while applying localized reinforcement plates at connection zones. This allows the overall weight to remain controlled while providing enhanced connection resistance where the increased loads are applied, specifically at shield areas requiring reinforcement.
Solution Approach 2:
The structural system is segmented into standard-thickness chord elements and separately attached reinforcement plates at critical connection points. This segmentation enables the main structure to maintain standard weight specifications while localized reinforcements provide the additional strength needed for handling increased payloads.
Data Source
AI summary
A shield reinforcement plate including a steel plate of approximately 1 to 3 mm thick, shaped in characteristic form by a tool in a continuous process. The shield reinforcement plate including 2 (two) holes, a pair of fins, also referred to as flaps and a fold at 90° relative to a base of the shield reinforcement plate. The fold referred to as a stiffener.