长丝机织土工布砌体结构加固静载试验研究

Test Study on the Masonry Structure Reinforced by Filament Woven Geotextile Under Static Load

为了寻求一种加固效果好、经济成本低的加固主材,通过调研和初步筛选,拟选取长丝机织土工布作为试验研究对象。通过对砌体构件土工布不同加固率、加固方式下轴心抗压、顺缝抗剪等试验研究分析,并与同等条件下碳纤维布加固砌体构件的加固效果对比,得出两种加固材料的砌体结构加固效果具有一定的可比性。长丝机织土工布加固的砌体试件承载力显著提高,而且达到极限荷载后还表现出一定的延性,同时长丝机织土工布作为加固主材,有很好的经济优势。

It is estimated that the next 10 to 30 years in the future will be the peak of reinforcement and reconstruction in China, and the masonry structure will still play a significant role in people＇s everyday life and production for a very long time, Therefore the reinforcement and reconstruction of masonry structure are necessary at present. In order to seek a main strengthening material with the advantages such as excellent strengthening effect and low economic cost, the filament woven geotextile was selected as research object through investigation and screening. According to the research and analy- sis of axial-compressing and shear strength for the masonry component with different geotextile reinforcement ratio and method, as well as the comparison of carbon fiber reinforced masonry structures with the same condition, it was concluded that two kinds of reinforcement materials for masonry structure have certain comparability. During the test, the bearing capacity of masonry specimens reinforced by filament woven geotextile improved obviously, and the specimens still had certain ductility when reaching the ultimate load. Besides, the filament woven geotextile has a good economic advantage as main strengthening material.