Experimental research on masonry structures under the drawing action of roof pulling tower
ZHENG Longxin
FAN Liujun
MIAO Peng
Abstract：Roof pulling towers are widely used in communications base stations because they are commonly used in towers. They are anchored in the masonry structure of the parapet. Anchoring stability of anchors for the roofing towers is important. The masonry structure is made of low-strength bricks and mortar,and there is no clear understanding about the failure mode of the structure under the tension load. This paper creatively utilizes the supporting frame device to exert the pulling force on the wall without counter-force to make the test result closer to the actual force. Through the test on different wall height,mortar and brick strength,the results proposed that the main failure mode of the masonry structure is the horizontal shear failure at the bottom,the shear failure mode of middle V-shape cracks,bending cracking at the end of the wall,and torsion cracking damage. Based on the experimental data,the formula for calculating the ultimate pullout force is put forward,which has certain reference value for the design and calculation of anchorage points of towers.
Keywords：masonry structurepulloutultimate loadfailure mode
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 58-62 )