- 摘 要
-
(1 西安建筑科技大學理學院, 西安 710055; 2 西安建筑科技大學土木工程學院, 西安 710055)
[摘要]提出一種新型配合比的陶粒粉煤灰發(fā)泡混凝土作為砌體墻材料,對該種綠色材料進行基本力學性能試驗,得到其砌塊和砌體的力學指標和本構方程; 設計了兩榀陶粒粉煤灰配筋砌體墻,通過擬靜力試驗檢驗其抗震性能,并與其他綠色材料配筋砌體墻進行對比。建立與試驗相關的數(shù)值模型,通過數(shù)值模型擴展分析,研究改變關鍵參數(shù)對墻體抗剪承載力的影響,并提出適用于此類結構的抗剪承載力理論公式,將計算結果分別與試驗值和模擬值對比,驗證該公式具有較高的精度。
[關鍵詞]陶粒粉煤灰配筋砌體墻; 綠色建筑材料; 抗震性能; 抗剪承載力
中圖分類號:TU375-6文獻標識碼:A文章編號:1002-848X(2021)02-0034-05
Experimental and theoretical research on seismic performance of ceramsite fly ash reinforced masonry walls
MIAO Xinwei1, HUANG Wei2
(1 School of Science, Xi′an University of Architecture and Technology, Xi′an 710055, China;2 School of Civil Engineering, Xi′an University of Architecture and Technology, Xi′an 710055, China)
Abstract:A new mix ratio of ceramsite fly ash foamed concrete was proposed as a masonry wall material. The basic mechanical performance test of this green material was carried out, and the mechanical indexes and constitutive equations of the blocks and masonry were obtained; and the seismic performance of two\|tiered ceramsite fly ash reinforced masonry wall was tested by a pseudo-static test and compared with other green material reinforced masonry walls. a numerical model related to the test was established, and through numerical model expansion analysis, the impact of changing key parameters on the shear capacity of the wall was studied. A theoretical formula for the shear capacity of this type of structure was proposed, and the calculation results were compared with the experimental values and simulation values,which verified that the formula had higher accuracy.
Keywords:ceramsite fly ash reinforced masonry wall; green building materials; seismic performance; shear bearing capacity
*國家自然科學基金項目(51978566)。
作者簡介:苗欣蔚,博士,講師,Email:panzer.8002@163.com; 通信作者:黃煒,博士,教授,Email:qqhuangwei2005@126.com。