古砖墙动力特性及抗震(振)性能试验研究

Experimental study on dynamic characteristics and seismic(vibration)performance of ancient brick walls

模拟古建筑砖墙施工工艺,制作古砖砌体试件,试验研究古砖砌体抗压强度,动刚度与不同加载频率、振动幅值、竖向应力和长期微幅振动下的相关性能。采用五顺一丁砌筑法制作古建筑墙体,对古青砖墙体进行振动台试验研究。试验模拟了交通振动和地震荷载,测试了古建筑墙体不同位置的加速度响应和不同工况作用后的自振频率及变化,并对古青砖墙破坏特点进行了分析。

Simulating the construction technology of ancient building brick walls,ancient brick masonry specimens were made.The compressive strength and correlation properties of ancient brick masonry are studied under different loading frequency,vibration amplitude,vertical stress and long-term micro-amplitude vibration.The Wushun-Dingding method was used to make the ancient building wall,and the shaking table test was carried out on the ancient green brick wall.The traffic vibration and seismic load are simulated,the acceleration response of the ancient building wall at different positions and the natural frequency and change of the ancient building wall under different working conditions are tested,and the failure characteristics of the ancient green brick wall are analyzed.