We are pleased to announce a new study published in Tunnelling and Underground Space Technology that investigates how locking segments enhance the performance of segmented ductile‑iron water pipeline joints under tension and bending during seismic events.
Study Overview
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Objective: Explore how locking‑segment-equipped joints restrict axial movement after a brief free-shift, enhancing pipeline performance during seismic loading.
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Test Setup: Full-scale four-point bending and tension experiments were conducted on 24‑inch segmented ductile‑iron pipes integrated with locking mechanisms.
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Instrumentation: Distributed fiber‑optic sensors monitored real-time longitudinal and circumferential strains throughout dynamic loading.
Key Findings
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Locking segments effectively limit unwanted axial displacement, preventing excessive extension or pulling-apart under tension.
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These mechanical features improve joint rotational capacity, allowing pipelines to bend without compromising integrity.
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Insights into how locking segments distribute forces under multi-directional loading can inform robust design strategies for earthquake-resilient pipeline systems.
Significance
The study highlights the importance of joint design in bolstering water infrastructure against seismic hazards. By quantifying the structural benefits of locking segments, this research provides practical guidance for utilities aiming to enhance pipeline reliability and public safety in earthquake-prone regions.
We are pleased to announce a new study published in Tunnelling and Underground Space Technology that investigates how locking segments enhance the performance of segmented ductile‑iron water pipeline joints under tension and bending during seismic events.