In the stone-made architectural heritage, one of the most widely used stones is granite. Given its superior material properties and abundant reserves, most Korean stone pagodas were built using granite. For the repair and restoration of the ancient stone pagoda made of granite, understanding of the structural behavior of reinforced granite is crucial. In this study, flexure tests for seven simply supported full-scale granite reinforced with stainless steel bars were conducted to investigate the failure mode and load–displacement relationship. Through the experiments, the feasibility of the suggested method for reinforcement of the damaged granite was also explored. Test specimens were manufactured after injecting epoxy resin by inserting stainless steel bars into the drilled holes, and then each granite substrate was bonded with adhesive epoxy resin. The test results showed that the load–displacement relationship of reinforced granite was highly dependent on the presence of the reinforcement, positioning of the reinforcing bars, and bond capacity of the reinforcing bars. Also, reinforcing bars significantly affected the deformation of the reinforced granite. Based on the test results, four distinct flexural responses of reinforced granite are presented.

中文翻译：

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古石塔修复：不锈钢钢筋加固花岗岩的抗弯性能

在石材建筑遗产中，使用最广泛的石材之一是花岗岩。由于其优越的材料特性和丰富的储量，韩国大部分石塔都是用花岗岩建造的。对于用花岗岩建造的古石塔的修复和修复，了解加筋花岗岩的结构行为至关重要。在这项研究中，对 7 个用不锈钢棒加固的简支全尺寸花岗岩进行了弯曲试验，以研究破坏模式和载荷 - 位移关系。通过实验，还探讨了所建议的对损坏花岗岩进行加固的方法的可行性。通过将不锈钢棒插入钻孔中注入环氧树脂后制成试样，然后将每个花岗岩基板用粘合剂环氧树脂粘合。试验结果表明，加筋花岗岩的荷载-位移关系高度依赖于钢筋的存在、钢筋的位置和钢筋的粘结能力。此外，钢筋显着影响了加筋花岗岩的变形。根据试验结果，提出了加筋花岗岩的四种不同的弯曲响应。