- 摘 要
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（1 天津軟土特性與工程環(huán)境重點實驗室， 天津 300384； 2 上海建工七建集團有限公司天津分公司， 天津 300384；3 天津城建大學(xué)土木工程學(xué)院， 天津 300384）
［摘要］以農(nóng)村地區(qū)現(xiàn)存的夯土類住宅為研究對象，對傳統(tǒng)構(gòu)造措施加以改進，設(shè)計制作3個不同新型構(gòu)造措施的夯土墻試件及1個不設(shè)置任何構(gòu)造措施的普通夯土墻試件。通過對試件墻體進行低周反復(fù)荷載擬靜力試驗，對比分析墻體水平承載力、變形性能、耗能能力及剛度退化特性等抗震性能。研究結(jié)果表明，新型構(gòu)造措施的設(shè)置能夠提高夯土墻體整體性，有效限制墻體開裂，改善墻體變形性能，減緩墻體剛度退化，提高墻體水平承載力，增強墻體抗震性能。試驗結(jié)果尤以采用混凝土構(gòu)造柱、混凝土圈梁和拉結(jié)筋共同設(shè)置的新型構(gòu)造措施為最佳。
［關(guān)鍵詞］夯土墻； 抗震性能； 構(gòu)造柱； 圈梁； 拉結(jié)筋
中圖分類號：TU361文獻標(biāo)識碼：A文章編號：1002-848X(2019)05-0048-05
Experimental study on seismic performance of rammed-earth walls with new structural measures
Zhang Jianxin1, Zhang Yanhui2, Ning Luning1, Yang Xinlei3
（1 Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment, Tianjin 300384， China;2 Tianjin Branch, Shanghai Construction No.7 (Group) Co., Ltd., Tianjin 300384; China;3 School of Civil Engineering, Tianjin Chengjian University, Tianjin 300384; China）
Abstract:Taking the existing rammed-earth dwelling houses in rural areas as the research object, the traditional structural measures were improved, and three rammed-earth wall specimens with different new structural measures and one ordinary rammed-earth wall specimen without any structural measures were designed and manufactured. The quasi-static test of the wall specimens under low cyclic repeated load was carried out to compare and analyze the seismic performance of horizontal bearing capacity, deformation performance, energy dissipation capacity and stiffness degradation characteristics of the wall specimens. The results show that the setting of new structural measures can improve the integrity of rammed-earth wall, effectively restrict wall cracking, improve wall deformation performance, slow down wall stiffness degradation, improve horizontal bearing capacity of wall, and enhance seismic performance of wall. The test results show that the new structural measures, which are composed of concrete structural columns, concrete ring beams and tie bars, are the best.
Keywords:rammed-earth wall; seismic performance; structural column; ring beam; tie bar
*“十二五”國家科技支撐計劃項目(2015BA1202193)，國家科技支撐計劃項目（2015BAL03B02）。
作者簡介：張建新，博士，教授，碩士生導(dǎo)師，注冊土木工程師（巖土），Email: zh-jianxin@126.com。
