摘要:碳纤维增强复合材料(CFRP)板加固钢梁时,采取防止CFRP板由于端部应力集中而发生剥离破坏的措施十分必要,通过采用不同长度、宽度、厚度的CFRP板对H钢梁进行受弯加固试验,并在CFRP板端部设置了碳纤维布U形锚固措施,试验结果表明:采用CFRP板加固钢梁能明显提高钢梁的抗弯承载能力和刚度,提高的幅值与加固面积、CFRP板厚度及端部锚固有关,加固面积越大、CFRP板越厚其加固效果越好;在加固延伸长度范围内设置的碳纤维布U形锚固,能在一定程度上防止剥离破坏的作用并可增加加固效果.
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