Seismic-Resistant Prefabricated Pillar Attachment Mechanism
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Solution Overview
Problem
Traditional clamping systems for mixed steel and concrete pillars in seismic zones are aesthetically unsuitable, inefficient, and prone to inaccuracies due to visible elements and reliance on operator skill, and require additional site operations for alignment and attachment, leading to potential inaccuracies and increased complexity.
Innovation Solution
An anti-seismic device with adjustable positioning and attachment elements, including a distancing plate that creates a hidden compartment for jacks, allowing for secure and level pillar attachment without visible clamping elements, and enabling prefabricated elements to be correctly positioned and anchored during assembly, reducing site operations and ensuring stability before concrete maturation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional clamping systems with visible bolts and plates are used to attach pillars to the laying plane, then secure attachment is achieved, but aesthetic appearance deteriorates and space is wasted near the pillar
Solution Approach 1:
The invention extracts the clamping elements (bolts, nuts, plates) from the visible surface and relocates them to the hidden space beneath the laying plane. The base plate is positioned below the laying plane with clamping elements inserted through holes in the plate, so that only the pillar shaft remains visible, eliminating the aesthetic degradation caused by traditional surface-mounted clamping systems.
Solution Approach 2:
The invention transitions the clamping system from a two-dimensional surface arrangement to a three-dimensional configuration by positioning the base plate and clamping elements in the vertical dimension below the laying plane. This dimensional relocation allows the attachment mechanism to function securely while remaining invisible from the horizontal viewing perspective, thus resolving the aesthetic contradiction.
2Ease of manufacture
If traditional clamping systems are used to attach pillars to the laying plane, then attachment is achieved, but operator skill dependency increases and positioning accuracy deteriorates
Solution Approach 1:
The invention implements self-aligning features through centering elements that automatically position the pillar shaft correctly on the laying plane during installation. The centering elements on the pillar shaft engage with corresponding features on the laying plane, providing self-positioning that eliminates dependency on operator skill for accurate alignment, while the standardized base plate and clamping mechanism simplify the attachment process.
Solution Approach 2:
The invention incorporates preliminary positioning features (centering elements) that are pre-installed on the pillar shaft and laying plane before the actual attachment operation. These pre-positioned elements guide the pillar into correct alignment automatically, ensuring positioning accuracy is achieved before the clamping elements are tightened, thereby reducing dependency on operator skill during the attachment process.
3Ease of operation
If housing seatings are created in the foundation layer to insert clamping elements, then attachment to the laying plane is enabled, but additional site operations are required and complexity increases
Solution Approach 1:
The invention moves the creation of housing seatings and insertion of clamping elements to the preliminary manufacturing phase rather than requiring them during site installation. The base plate with pre-positioned holes for clamping elements is manufactured off-site and delivered as a complete assembly, eliminating the need for workers to create housing seatings in the foundation layer and insert clamping elements during site operations, thereby reducing site operation complexity.
Solution Approach 2:
The invention segments the attachment system into modular components (base plate, clamping elements, centering elements) that can be manufactured and prepared separately off-site, then assembled during installation. This segmentation allows the complex elements to be pre-manufactured with high precision in a controlled environment, while site operations are reduced to simpler assembly tasks, thereby reducing overall device complexity and operational difficulty.
4Reliability
If visible clamping elements remain on the walkable plane after pillar attachment, then attachment function is maintained, but usable space near the pillar is reduced and obstacles to movement are created
Solution Approach 1:
The invention extracts the clamping elements from the visible walkable plane and relocates them to the hidden space beneath the laying plane. The base plate is positioned below the laying plane, and clamping elements are inserted through holes in the plate from below, so that no clamping elements remain visible on or protrude from the walkable plane. This extraction maintains attachment reliability while completely restoring the usable floor space and eliminating movement obstacles.
Data Source
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AI summary
System of prefabricated elements for the building trade, comprising at least a pillar of the steel-concrete mix type (50) and a girder (40). The system comprises at least an anti-seismic device, consisting of an anti-seismic element (30) having at least a central element (31) associated with respective upper (34) and lower (35) plates. The plates (34, 35) include seatings to house respective anchoring elements, respectively upper (36) and lower (37). The anti-seismic device also consists of at least a distancing plate (43, 44, 60) able to anchor the anti-seismic element (30) to a support base (45), or to the lower part of the girder (40), or to the upper or lower part of the pillar (50). The plate (43, 44, 60) defines a free space to house operating equipment.