Floorplate Lifting Bridle for Ground-Level Assembly and Hoisting
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Solution Overview
Problem
Traditional methods for constructing multi-story buildings are inefficient in terms of material handling and labor-intensive, requiring specialized equipment and skilled operators, and are time-consuming.
Innovation Solution
A floorplate lifting system that includes a lift bridle and a lift system with strand jacks, static strand bundles, and mounting brackets, allowing for the assembly and lifting of floorplates from ground level to design elevation using a vertical support core.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional bottom-up construction methods are used, then structural elements can be assembled from ground level, but material handling efficiency deteriorates and labor intensity increases
Solution Approach 1:
The patent inverts the traditional construction sequence by assembling floorplates at ground level and lifting them upward using a lifting system with strand jacks and cables, rather than building from the ground up element by element. This inversion enables more efficient material handling and reduces labor intensity while maintaining assembly simplicity.
2Ease of operation
If tower cranes are used for individual lifts, then structural elements can be positioned at elevation, but equipment complexity and setup logistics increase
Solution Approach 1:
The lifting system uses a universal cable-based mechanism with strand jacks that can handle multiple floorplates sequentially, replacing the need for multiple specialized tower cranes. The same lifting apparatus serves different floorplates at different elevations, reducing equipment complexity while maintaining positioning capability.
Solution Approach 2:
The patent introduces an intermediary lifting system consisting of cables, strand jacks, and mounting brackets that mediates between the ground-level assembly area and the elevated floorplate positions. This intermediary mechanism eliminates the need for direct tower crane operation for each lift, simplifying equipment requirements.
3Ease of manufacture
If concrete is pumped to final elevation, then floor structures can be formed, but setup logistics and skilled operator requirements increase
Solution Approach 1:
The floorplates are completely assembled, prepared, and pre-positioned at ground level before being lifted to their final elevations. This preliminary action at ground level consolidates all assembly logistics into a single location, reducing setup logistics requirements and skilled operator needs at elevated positions.
4Productivity
If traditional construction methods are used, then building can be constructed from ground up, but time consumption and labor intensity increase
Solution Approach 1:
Floorplates are assembled completely at ground level before lifting, allowing parallel preparation of multiple floorplates simultaneously. This preliminary assembly enables faster construction by eliminating sequential lifting operations and reducing overall construction time while maintaining productivity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This system enhances material and labor efficiency by enabling the sequential assembly and lifting of floorplates, reducing the need for specialized equipment and skilled operators, and streamlining the construction process.
Implementation Method 1
The lift system includes a plurality of strand jacks, a plurality of static strand bundles... The plurality of strand jacks are attached to the lift bridle
Implementation Method 2
strand jacks, a plurality of static strand bundles, a plurality of strand anchors, and a plurality of strand mounting brackets
Data Source
AI summary
A floorplate lifting system includes a lift bridle and a lift system. The lift system includes a plurality of strand jacks, a plurality of static strand bundles, a plurality of strand anchors, and a plurality of strand mounting brackets. The plurality of strand mounting brackets are detachably affixed to a vertical support core. First ends of the plurality of static strand bundles are attached to the plurality of strand anchors, and the plurality of static strand bundles are suspended from the plurality of strand mounting brackets via the plurality of strand anchors. Second ends of the plurality of static strand bundles are suspended from the plurality of strand jacks. The strand jacks are attachable to the lift bridle.


