一般来说,观测建筑物的垂直度最好在早晨或阴天,这样可避免日照温度差对建筑物产生的垂直偏差。以前,关于温度差对混凝土建筑物垂直度的影响,主要考虑的是日照对向阳面和背阴面的温度差。近年来,在高层和超高层混凝土建筑物的垂直度测量中我们观察到,随着建筑物高度的增加风速也加大,日照温差对混凝土建筑物垂直度的影响 In general, the verticality of the observation building is best in the morning or cloudy days, so as to avoid the vertical deviation of the sunlight temperature difference to the building. Previously, with regard to the effect of temperature difference on the verticality of concrete buildings, the main consideration was the temperature difference between sunlight on the sunny side and the shady side. In recent years, we have observed in the measurement of the verticality of high-rise and high-rise concrete buildings that the wind speed increases with the increase in the height of buildings, and the effect of temperature difference on the verticality of concrete buildings.