Pile Cap Connectors With Extended Upper Braces
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Solution Overview
Problem
Existing pile cap connectors lack adaptability and strength in connecting buildings to foundations, particularly in coastal areas where flood and wind resistance are critical, and they are not easily applicable to both new and existing structures.
Innovation Solution
A pile cap connector design featuring a cap plate with lower and upper braces that securely attach to both the foundation pile and the support beam or girder, with at least one upper brace extending to fasten to the building proper, providing enhanced stability and flexibility in assembly and installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If existing pile cap connectors are used to connect buildings to foundations, then the connection is achieved, but the connection strength and adaptability are insufficient, particularly for coastal flood and wind resistance
Solution Approach 1:
The pile cap connector is designed with multiple upper braces that can serve different functions: some braces connect to support beams/girders while others extend to connect directly to the building proper. This multi-functional design allows a single connector assembly to provide both structural support and direct building anchorage, enhancing both connection strength and adaptability to different building configurations and coastal hazard conditions.
Solution Approach 2:
The connector is divided into distinct components: a cap plate, multiple lower braces for pile attachment, and multiple upper braces of varying lengths for different connection purposes. This segmentation allows each component to be optimized for its specific function while maintaining overall system strength and adaptability to various installation scenarios.
2Strength
If pile cap connectors are designed for strong building-pile connection, then connection strength is improved, but the ease of assembly and installation is reduced
Solution Approach 1:
The upper braces are designed with varying lengths to accommodate different building heights and configurations. This dynamic adaptability allows the same basic connector design to be easily assembled in diverse situations without requiring custom fabrication, maintaining ease of installation while ensuring adequate connection strength for various building-pile configurations.
3Ease of operation
If the connector only connects to support beams or girders, then the installation is simpler, but the overall stability and resistance to coastal hazards is reduced
Solution Approach 1:
The connector assembly performs dual functions: it connects to support beams/girders for structural integration and simultaneously provides direct building proper attachment through extended upper braces. This multi-functional approach enhances reliability and stability against coastal hazards while maintaining relatively simple installation procedures using standard fastening methods.
Data Source
AI summary
An improved pile cap connector for connecting the top end of a driven pile, e.g., pipe pile, to a support beam or girder of a building, and/or the building proper, comprising, a cap plate, one or more lower braces secured to the underside of the cap plate to anchor the cap to the pile, two or more upper braces securable to the top side of the support plate, wherein at least one of the two or more upper braces has a length so that the brace, when secured to the cap plate, rises above the support beam or girder so that a portion of the brace lays against the building proper for fastening thereto.