一、使用情况及试压目的 1957年在长沙某工程中,采用了悬臂楼梯,净挑1.50米,预制安装,使用十余年来,情况良好。1965年在住宅宿舍中推广,随后大量应用于医院,办公楼及学校等公共建筑物中。经过八、九年来的实践考验,证明其安全适用,经济,施工快速简便,且外形也比有边梁的楼梯轻巧美观(图1)。 过去在计算悬臂楼梯的抗倾时,对上部抗倾重量的取值和砌体挠曲抗 First, the use of the situation and the purpose of pressure test In 1957 in Changsha, a project, the use of cantilevered stairs, net pick 1.50 meters, prefabricated installation, use more than ten years, the situation is good. In 1965, it was promoted in residential dormitories and then used in a large number of public buildings such as hospitals, office buildings and schools. After eight to nine years of practical tests, it proved that it is safe to use, economical, and quick and easy to construct, and its shape is also lighter and more beautiful than that of a side beam staircase (Figure 1). In the past, when calculating the anti-roll of a cantilevered stairway, the value of the upper anti-dump weight and the flexural resistance of the masonry were