使用超声层析成像技术对砖石支柱进行无损评估

Zielińska Monika, Rucka Magdalena

Department of Technical Fundamentals of Architectural Design, Faculty of Architecture, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland.

Department of Mechanics of Materials and Structures, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland.

Materials (Basel). 2018 Dec 13;11(12):2543. doi: 10.3390/ma11122543.

In this paper, a condition assessment of masonry pillars is presented. Non-destructive tests were performed on an intact pillar as well as three pillars with internal inclusions in the form of a hole, a steel bar grouted by gypsum mortar, and a steel bar grouted by cement mortar. The inspection utilized ultrasonic stress waves and the reconstruction of the velocity distribution was performed by means of computed tomography. The results showed the possibilities of tomographic imaging in characterizing the internal structure of pillars. Particular attention was paid to the assessment of the adhesive connection between a steel reinforcing bar, embedded inside pillars, and the surrounding pillar body.

本文介绍了砌体柱的状态评估。对一根完整的柱子以及三根内部有不同内含物的柱子进行了无损检测，这些内含物分别为一个孔洞、一根用石膏砂浆灌浆的钢筋以及一根用水泥砂浆灌浆的钢筋。检测采用了超声应力波，并通过计算机断层扫描进行速度分布重建。结果显示了断层成像在表征柱子内部结构方面的可能性。特别关注了嵌入柱子内部的钢筋与周围柱体之间粘结连接的评估。