桥梁结构中的常见缺陷
Ponte Morandi在热那亚，意大利（阅读更多）和佛罗里达州国际大学步行桥（阅读更多）对现有和新桥梁结构的安全性和可靠性的崩溃崩溃。桥梁结构中的常见缺陷会影响桥梁结构的整体安全性。不同的劣化机制可能导致重大缺陷。在发达国家的退出基础设施即将结束初始使用寿命设计。根据......阅读更多»桥梁结构中的常见缺陷
如何使用NDT方法估算混凝土的强度？
In this article, we will briefly review how to Estimate Strength of Concrete Using NDT Methods. Compressive strength of concrete is by far the most important property of concrete. It represents the mechanical properties of concrete; for example, the 28 days compressive strength of concrete cylinders is the key parameter in most design codes (ACI 318-14, CSA A23.3-14). Concrete strength is found to have reasonable relationship with certain durability parameters of concrete.…阅读更多»如何使用NDT方法估算混凝土的强度？
桩检测中的实践考虑因素
桩完整性测试（PIT）是一种非破坏性的测试方法，用于评估桩和深层基础的未知长度和完整性。该技术背后的基本概念正在确定由冲击装置（通常，手持锤）引起的绒绒的速度（所需）和力（可选）响应。桩完整性测试最适合长的结构部件，如驱动混凝土桩，铸造混凝土桩，混凝土填充钢管桩，木材桩，......阅读更多»桩检测中的实践考虑因素
桩完整性测试的应用与局限性
Pile Integrity Test can be used to determine the integrity of piles. The method works best for long structural component such as driven concrete piles, cast-in place concrete piles, concrete filled steel pipe piles, timber piles, structural columns. The method works based on measuring and analyzing the velocity (required) and force (optional) response of pile. A hammer (regular or instrumented) is used to impact the pile surface and induce acoustic waves…阅读更多»桩完整性测试的应用与局限性
NDT Methods for Evaluation of Parking Garages
Non-destrcutive Testing- NDT Methods for Evaluation of Parking Garages can help improve the quality of routine inspection and maintenance. Parking garages require routine inspection and maintenance to ensure they remain safe and operational. Weather it is a public parking in extremely busy downtown areas, or a private condominium structure, proper maintenance is needed to keep them safe. The importance of parking garages is often ignored, simply because nobody lives in…阅读更多»NDT Methods for Evaluation of Parking Garages
钢筋混凝土结构的腐蚀监测
A corroded structure (whether it is a bridge, or a jetty, or a simple ramp) could be scary for many people. Imagine yourself driving along the Gardner Express (Downtown Toronto), or the highway 40 (Montreal), and all of a sudden, a piece of concrete falls onto your car, breaking the windshield. Feels scary? Indeed! A corroded structure makes you feel so unsafe, even if it is in stable condition. This…阅读更多»钢筋混凝土结构的腐蚀监测
混凝土桩的完整性问题
分享到LinkedIn在Facebook上的分享到Twitter股票上的电报股票在WhatsApp上的股票上的电子邮件中的份额本文介绍了一些可以导致混凝土桩和钻井轴中的完整性问题的某些建筑实践。钻孔混凝土桩施工期间的任何时候都可能发生缺陷。大多数常见类型的桩完整性问题是空隙的存在;混凝土混合，混凝土的不一致;夹带地下水或浆料;和…阅读更多»混凝土桩的完整性问题
4桥甲板条件调查方法
暴露的混凝土甲板患有各种劣化机制;即冷冻和解冻，腐蚀。最重要的结果是混凝土的分层，最终可能最终引发其他损伤机制，例如腐蚀。甲板板的维护主要是挑战，主要是因为它通常涉及大面积;在许多情况下，关闭甲板到交通极为困难，如果不是不可能的话。现有（传统）桥甲板条件调查方法......阅读更多»4桥甲板条件调查方法
重用现有桩 - NDT如何提供帮助
Safety, reliability and satisfactory performance of structures require a well-planned maintenance program, as well as remedial actions in short and mid-term. Existing structures that are designed in accordance with older design codes or were built by older construction practices may need to be extensively repaired, rehabilitated, or replaced within the next few years. The remedial actions may include structural and/or foundation upgrade or replacement. Reuse of existing piles and foundations is…阅读更多»重用现有桩 - NDT如何提供帮助
4混凝土坝无损评价的4种方法
适当的操作和维护混凝土坝结构对于确保结构的安全性并降低风险至关重要。应定期检查混凝土表面，以识别由于风化，或极端应力或其他物理或化学损伤机制而识别剥落和恶化。混凝土坝的无损评估可以提供有关混凝土材料条件和质量的有用信息，损坏程度和混凝土的机械性能。什么…阅读更多»4混凝土坝无损评价的4种方法