Gusset Plate Beam-to-Column Joint for Rapid Seismic Assembly
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Solution Overview
Problem
Existing beam-to-column joint connections in structures, particularly in mezzanine constructions, face challenges in rapid assembly without compromising stability, often due to alignment issues and the need for precise connection methods.
Innovation Solution
A prefabricated column assembly with a gusset plate assembly comprising multiple gusset plates and connection plates, providing a biaxial joint connection that allows for rapid assembly and stability, using structural steel components welded and bolted together, with optional use of pins or seat plates for secure beam attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional beam-to-column joint connections are used, then structural stability is achieved, but assembly time increases due to alignment issues and complex connection procedures
Solution Approach 1:
The gusset plate assembly is pre-fabricated with connection plates and fasteners attached in advance, with alignment features pre-positioned. This preliminary preparation of connection components eliminates time-consuming on-site alignment operations and enables rapid assembly of the beam-to-column joint.
Solution Approach 2:
The joint connection system is divided into separate modular components: the gusset plate assembly attached to the column and the connection plates attached to the beam. This segmentation allows independent preparation and positioning of components, simplifying the assembly process and reducing alignment complexity.
2Productivity
If rapid assembly methods are used for mezzanine structures, then construction efficiency improves, but structural stability and seismic resistance may be compromised
Solution Approach 1:
The gusset plate assembly is pre-fabricated with connection plates and fasteners attached in advance, with alignment features pre-positioned. This preliminary preparation of connection components eliminates time-consuming on-site alignment operations and enables rapid assembly of the beam-to-column joint.
Solution Approach 2:
The gusset plate assembly combines multiple connection elements (gusset plates, connection plates, fasteners, and alignment features) into a single integrated unit. This merging of components ensures proper alignment and connection geometry are maintained during rapid assembly, preserving structural stability and seismic resistance while improving construction efficiency.
3Manufacturing precision
If complex alignment procedures are implemented, then connection precision improves, but assembly time and construction complexity increase
Solution Approach 1:
The gusset plate assembly incorporates self-aligning features such as positioning tabs, recesses, or keyed connections that automatically guide the beam into correct alignment with the column during assembly. This self-alignment mechanism eliminates the need for complex external alignment procedures, maintaining high connection precision while reducing assembly complexity and time.
Data Source
AI summary
A prefabricated column assembly includes a hollow tubular column, a gusset plate and a connection plate. The hollow tubular column has a longitudinal axis. The gusset plate is attached to a first face of the column and extending in a plane generally parallel to the longitudinal axis of the column. A connection plate extends in a plane generally perpendicular to the gusset plate.