[1]高晓鹏,陈忠范.有垫片铺浆砌筑足尺粗料石砌体墙体抗震性能试验研究[J].东南大学学报(自然科学版),2018,48(3):484-490.[doi:10.3969/j.issn.1001-0505.2018.03.016]
 Gao Xiaopeng,Chen Zhongfan.Experimental study on seismic performance of full-scale crude stone masonry walls constructed by mortar including shims[J].Journal of Southeast University (Natural Science Edition),2018,48(3):484-490.[doi:10.3969/j.issn.1001-0505.2018.03.016]
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有垫片铺浆砌筑足尺粗料石砌体墙体抗震性能试验研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
48
期数:
2018年第3期
页码:
484-490
栏目:
土木工程
出版日期:
2018-05-20

文章信息/Info

Title:
Experimental study on seismic performance of full-scale crude stone masonry walls constructed by mortar including shims
作者:
高晓鹏陈忠范
东南大学土木工程学院, 南京 210096; 东南大学混凝土及预应力混凝土结构教育部重点实验室, 南京 210096
Author(s):
Gao Xiaopeng Chen Zhongfan
School of Civil Engineering, Southeast University, Nanjing 210096, China
Key Laboratory of Concreteand Prestressed Concrete Structure of Ministry of Education, Southeast University, Nanjing 210096, China
关键词:
粗料石墙体 石块尺寸 竖向压应力 低周反复荷载试验 延性系数 能量耗散
Keywords:
crude ashlar stone masonry size of stone unit vertical compressive stress reversed cyclic loading test ductility coefficient energy dissipation
分类号:
TU363
DOI:
10.3969/j.issn.1001-0505.2018.03.016
摘要:
为研究有垫片粗料石砌体墙的抗震性能,对6片单层单跨、尺寸为4 250 mm×3 200 mm×250 mm(长×高×厚)的有垫片铺浆粗料石砌体墙体进行了低周反复加载试验.试验结果表明,当竖向压应力从0.25 MPa增加到0.50和0.75 MPa时,墙体开裂时间延迟,能量耗散增加,变形能力减少,屈服荷载、峰值荷载和极限荷载分别增加了69.9%,60.4%,74.1%和106.7%,104.0%,118.2%,黏滞阻尼分别增加了41.2%和52.7%.当砂浆强度从2.5 MPa增加到5.0和7.5 MPa时,屈服荷载、峰值荷载和极限荷载分别增加了10.2%,11.4%,9.9%和22.8%,15.4%,15.2%,黏滞阻尼则明显减少;当块体长度从500 mm增加到1 000 mm时,位移延性系数增加了55.8%,黏滞阻尼系数增加了51.8%,能量耗散增加了1.73~2.73倍.采用简化公式计算得到的粗料石墙体抗剪强度与试验结果基本一致.
Abstract:
To investigate the seismic performance of crude ashlar stone masonry(CASM)walls including shims, six full-scale single storey, single-bay CASM walls constructed by the mortar including shims with the size of 4 250 mm×3 200 mm×250 mm(length×height×thickness)were carried out by reversed cyclic load tests. The experimental results indicate that when the vertical compressive stress increases from 0.25 to 0.50 and 0.75 MPa, the cracking time delays; the energy dissipation increases; the deformation capacity decreases. Moreover, the yield loading, the peak loading and the ultimate loading increase by 69.9%,60.4%,74.1% and 106.7%,104.0%, 118.2%, respectively; the viscous damping increases by 41.2% and 52.7%, respectively. When the mortar strength increases from 2.5 to 5.0 and 7.5 MPa, the yield loading, the peak loading and the ultimate loading increase by 10.2%,11.4%,9.9% and 22.8%,15.4%, 15.2%, respectively, while the viscous damping obviously decreases. When the stone block’s length increases from 500 to 1 000 mm, the displacement ductility coefficient increases by 55.8%; the viscous damping increases by 51.8%; the energy dissipation increases by 1.73 to 2.73 times. The shear strength of the tested walls obtained by the simplified formula is in good agreement with the experimental result.

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备注/Memo

备注/Memo:
收稿日期: 2018-01-06.
作者简介: 高晓鹏(1985—),男,博士生;陈忠范(联系人),男,博士,教授,博士生导师,101003944@seu.edu.cn.
基金项目: “十二五”国家科技支撑计划资助项目(2015BAL03B02).
引用本文: 高晓鹏,陈忠范.有垫片铺浆砌筑足尺粗料石砌体墙体抗震性能试验研究[J].东南大学学报(自然科学版),2018,48(3):484-490. DOI:10.3969/j.issn.1001-0505.2018.03.016.
更新日期/Last Update: 2018-05-20