發(fā)布時(shí)間：2018-01-11 05:10

  本文關(guān)鍵詞：珊瑚混凝土梁抗彎性能試驗(yàn)研究　出處：《混凝土》2017年04期 　論文類(lèi)型：期刊論文

  更多相關(guān)文章： 珊瑚混凝土 CFRP筋 梁 抗彎承載力

【摘要】：珊瑚混凝土是以珊瑚砂石為骨料,采用海水拌和的新型海洋混凝土,對(duì)于推進(jìn)我國(guó)海洋工程建設(shè)有重大作用。通過(guò)與普通混凝土構(gòu)件進(jìn)行對(duì)比,研究了鋼筋珊瑚混凝土梁和CFRP筋珊瑚混凝土梁的抗彎性能,結(jié)果顯示鋼筋珊瑚混凝土梁與普通鋼筋混凝土梁的開(kāi)裂、變形、抗彎承載力等性能均接近,具有良好的工程適用性。CFRP筋和珊瑚混凝土具有良好的協(xié)同工作性能,CFRP筋珊瑚混凝土梁的抗彎承載力比按現(xiàn)行FRP規(guī)范計(jì)算的結(jié)果低5%~10%�，F(xiàn)有普通混凝土和FRP規(guī)范進(jìn)行適當(dāng)調(diào)整后可用于鋼筋珊瑚混凝土和CFRP珊瑚混凝土的設(shè)計(jì)計(jì)算。
[Abstract]:Coral concrete is a new type of marine concrete which uses coral sand and stone as aggregate and is mixed with seawater, which plays an important role in the construction of marine engineering in China. The flexural properties of reinforced coral concrete beams and CFRP reinforced coral concrete beams are studied. The results show that the cracking, deformation and flexural bearing capacity of reinforced coral concrete beams and ordinary reinforced concrete beams are close to each other. It has good engineering applicability. CFRP bars and coral concrete have good cooperative working performance. The flexural bearing capacity of CFRP reinforced coral concrete beams is 5 10% lower than that of the current FRP code. The existing normal concrete and FRP codes can be used in reinforced coral concrete and corals after appropriate adjustment. Design calculation of CFRP coral concrete.
【作者單位】： 中冶建筑研究總院;
【基金】：中冶建筑研究總院珊重大課題“FRP-混凝土組合結(jié)構(gòu)關(guān)鍵技術(shù)研究”(JAF2014Kj02);“珊瑚骨料混凝土制備及應(yīng)用性能研究”(JAF2014kj03) 國(guó)家發(fā)改委新材料研發(fā)及產(chǎn)業(yè)化專(zhuān)項(xiàng)項(xiàng)目“GQ4522級(jí)以上碳纖維符合材料研發(fā)產(chǎn)業(yè)化項(xiàng)目”
【分類(lèi)號(hào)】：P75;TV33
【正文快照】： 0引言海洋是21世紀(jì)人類(lèi)賴(lài)以發(fā)展的新的資源空間,無(wú)論是著眼于長(zhǎng)遠(yuǎn)發(fā)展還是當(dāng)下需要,各國(guó)都把海洋開(kāi)發(fā)作為重要國(guó)策,并進(jìn)行著激烈的競(jìng)爭(zhēng)。當(dāng)前我國(guó)正在推進(jìn)海洋戰(zhàn)略,大批海洋工程如島礁建設(shè)、海上平臺(tái)、燈塔燈樁等迅速發(fā)展,為維護(hù)國(guó)家海洋權(quán)益和發(fā)展海洋經(jīng)濟(jì)打下了基礎(chǔ)。同時(shí),，

本文編號(hào)：1408222