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(1 武漢理工大學(xué)土木工程與建筑學(xué)院，武漢 430070； 2 河南省信息咨詢?cè)O(shè)計(jì)研究有限公司，鄭州 450008； 3 國(guó)家住宅與居住環(huán)境工程技術(shù)研究中心，北京 100044)

［摘要］通過(guò)植物纖維增強(qiáng)砌塊砌體軸心抗壓強(qiáng)度試驗(yàn)，研究了其破壞特征、抗壓強(qiáng)度、應(yīng)力\|應(yīng)變關(guān)系、彈性模量及泊松比?；谠囼?yàn)研究，運(yùn)用有限元方法，研究其承載力水平、裂縫發(fā)展和應(yīng)力\|應(yīng)變分布及位移變形情況，特別是其微觀層面的裂縫演化機(jī)制，從理論上深入分析其破壞機(jī)理，闡明了砌體各組成材料間的相互作用及其影響、受力薄弱區(qū)，得出了橫向拉應(yīng)力不足和彈性地基作用是其破壞根本原因等許多有益的結(jié)論。研究成果為植物纖維增強(qiáng)砌塊的推廣應(yīng)用以及相關(guān)規(guī)程的編制、修改提供依據(jù)，為類似的試驗(yàn)研究提供參考。

［關(guān)鍵詞］植物纖維增強(qiáng)砌塊；軸心抗壓；破壞機(jī)理；強(qiáng)度；彈性模量；有限元分析

中圖分類號(hào)：TU37562文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2011)08-0129-05

Experimental research and finite element analysis-of plant fiber reinforced block masonry under axial compression

Li Baode¹, Wang Xingxiao², Lou Ni³(1 School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China；2 Henan Province Information Consultation Designing Research Co.,Ltd., Zhengzhou 450008, China；3 China National Engineering Research Center for Human Settlements, Beijing 100044, China)

Abstract:Through the axial compressive strength test of the plant fiber reinforced block masonry, the damage characteristics, the compressive strength, the stress-strain relationship, the elastic modulus and poisson’s ratio  were studied. Based on the experimental research, by using finite element method, its capacity level, crack development, stress and strain distribution and the condition of displacement deformation were  studied. Especially the evolution mechanism of the micro cracks, the failure mechanism were theoretically analyzed, the interaction, influence and weak stress area of each component of masonry were illustrated, the fundamental destroy reasons were the defects of lateral stress and elastic foundation and many other useful conclusions were obtained. The results and conclusions provided the foundation for the  application of plant fiber reinforced masonry and the establishment and modification of the relevant regulations, more further ways for the similar experimental research were expanded.

Keywords:plant fiber reinforced block masonry；axial compression；failure mechanism；strength； elastic modulus；finite element analysis

*建設(shè)部規(guī)范制訂項(xiàng)目:建標(biāo)［2007］125\|73。

作者簡(jiǎn)介：李保德，教授，Email：baodel_138@163.com。

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