Polygonal Pipe Gallery Frame for Seismic Damping and Pipe Restraint
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Solution Overview
Problem
Current anti-seismic structures for urban underground comprehensive pipe galleries are prone to vibration displacement and damage during earthquakes, leading to potential collapse and pipeline damage.
Innovation Solution
An enhanced anti-seismic structure featuring a polygonal frame with an outer and inner frame, a support rod, and a buffer damping mechanism, along with a limit mechanism for securing pipes, is designed to improve stability and absorb seismic vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a tunnel-type construction method is used for the pipe gallery, then multiple pipelines can be installed in the soil layer, but the structure is prone to overall vibration displacement and collapse during earthquakes
Solution Approach 1:
The pipe gallery is divided into multiple independent polygonal frames instead of a continuous tunnel structure. Each frame can move independently during seismic events, preventing overall vibration displacement and collapse while still accommodating multiple pipelines.
Solution Approach 2:
The polygonal frame combines rigid components (outer frame, inner frame, support rods) with flexible damping elements (buffer damping mechanism). This composite structure provides both structural integrity for pipeline support and seismic energy absorption through the damping mechanism.
2Area of stationary object
If the pipe gallery is built as a continuous tunnel structure, then installation space is maximized, but cracks and collapse occur due to differential soil layer expansion and contraction during earthquakes
Solution Approach 1:
The continuous tunnel structure is segmented into discrete polygonal frames. Each frame maintains sufficient installation space while the segmentation allows independent movement during seismic events, preventing crack propagation and structural collapse.
Solution Approach 2:
The polygonal frame incorporates a buffer damping mechanism that allows dynamic response to seismic loads. The damping mechanism absorbs energy from differential soil layer expansion and contraction, maintaining structural integrity while accommodating ground movement.
3Stability of the object's composition
If a fixed pipe support structure is used, then pipeline stability is maintained during normal operation, but the structure cannot accommodate seismic vibrations
Solution Approach 1:
The limit frame provides localized fixed support for pipeline stability during normal operation, while the buffer damping mechanism at the base provides seismic resistance. This local differentiation of support characteristics allows both stable pipeline fixation and seismic vibration accommodation.
Solution Approach 2:
The limit frame transitions from a purely fixed structure to a dynamic system where the buffer damping mechanism allows controlled movement during seismic events. The screw rod and sliding connecting block maintain normal pipeline positioning while the damping mechanism absorbs seismic energy.
4Productivity
If multiple pipelines are installed in the same pipe gallery, then space utilization is improved, but the complexity of securing each pipeline increases
Solution Approach 1:
The limit frame with its screw rod, sliding connecting block, and top block provides a universal fixation mechanism that can secure multiple pipelines of different sizes. This multi-functional device simplifies the fixation process for multiple pipelines compared to individual support structures for each pipe.
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
The structure effectively stabilizes multiple pipelines simultaneously, enhances overall stability through support rods, and absorbs seismic vibrations using a buffer damping mechanism, reducing the risk of collapse and pipeline damage.
Implementation Method 1
a buffer damping mechanism comprises a base and a buffer seat, the base is fixedly installed at the side of the inner frame, and the buffer seat is attached to the bottom of the installation slot; The left and right sides of the base are respectively fixedly connected with the bottom of the buffer seat through two telescopic rods, and the telescopic rod is sleeved with a damping spring
Implementation Method 2
One end of the screw rod is fixedly installed with a lifting block, which is fixedly connected with the sliding connecting block through an extrusion spring
Data Source
AI summary
The invention discloses an enhanced anti-seismic structure suitable for urban underground comprehensive pipe galleries. Comprising a polygonal frame with an outer frame and an inner frame arranged inside it. Vertex of the inner frame is connected to the bending position inside the outer frame via a support rod. Outer frame has installation grooves for pipe installation, corresponding one-to-one with its sides. The outer frame, located outside the installation groove, can be disassembled to install a limit frame. A limit mechanism for fixing the pipe is installed on the limit frame. The outer frame, positioned outside the installation slot, can be disassembled to install a limit frame. Screwing in a screw drives a lifting block to compress a spring, causing a top block to press against the pipe surface and secure it. The polygonal frame allows for multiple pipes to be installed simultaneously, enhancing overall stability through the support rod connections.