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Infrared thermography and 3D pavement surface unevenness measurement algorithm for damage assessment of concrete bridge decks
Computer-Aided Civil and Infrastructure Engineering ( IF 8.5 ) Pub Date : 2024-12-25 , DOI: 10.1111/mice.13406
Mikiko Yamashita, Koichi Kawanishi, Kenji Hashizume, Pang‐jo Chun

Deterioration of the concrete deck surface, including disintegration and delamination between the deck slab and pavement, presents significant challenges in bridge maintenance due to its hidden nature and the risk it poses to the deck's durability as damage progresses. Early detection is critical for preventing issues such as pothole formation and ensuring long‐term durability. However, traditional methods require core sampling, which often delays detection until damage is extensive. This study proposes a nondestructive approach combining infrared thermography (IRT) and laser‐based surface profiling to improve early detection of subsurface damage. IRT captures temperature variations on the pavement surface, detecting horizontal voids and moisture, while laser profiling refines the detection of deeper, progressive damage. By integrating these two methods, the technique offers a comprehensive assessment that single‐method approaches cannot provide. Field validation demonstrates that this method enables precise evaluation of bridge deck conditions, contributing to safer and more efficient bridge maintenance.

中文翻译:


用于混凝土桥面损伤评估的红外热成像和 3D 路面不平整度测量算法



混凝土桥面表面的劣化,包括桥面板和路面之间的崩解和分层,由于其隐藏性以及随着损坏的进展对桥面的耐用性构成的风险,给桥梁维护带来了重大挑战。早期检测对于防止坑洼形成等问题和确保长期耐用性至关重要。然而,传统方法需要岩心采样,这通常会延迟检测,直到损伤范围广泛。本研究提出了一种结合红外热成像 (IRT) 和基于激光的表面轮廓分析的无损方法,以改善对地下损伤的早期检测。IRT 捕获路面表面的温度变化,检测水平空隙和水分,而激光轮廓则优化了对更深、更渐进的损坏的检测。通过整合这两种方法,该技术提供了单一方法无法提供的全面评估。现场验证表明,该方法能够精确评估桥面状况,有助于更安全、更高效地进行桥梁维护。
更新日期:2024-12-25
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