摘要
为确保深圳市民中心大屋盖网架的安装质量,发挥结构的受力作用,运用前方交会法来确定球心节点的几何中心.对不同测量图形、不同交会点的测量精度进行分析,得出其交会角为108°00′28″时,其测量度最高.在考虑图形强度的前提下,对该工程542个节点均进行了观测,其点位误差绝大多数在1cm以下,最大为1.8cm,测量精度和安装工程质量均达到了预期目的.
In order to ensure the installation quality of the housetop net structure of the civic centre in Shenzhen, and to bring into play the compression stress on the structure, the forward intersection method was applied to determine the geometric centre of the spherical joints. An analysis was made about the surveying precision accuracy of different surveying graphes and points of intersection, drawing the conclusion that the surveying certainty was the best with the intersection angle 108°00′8″. On the premise of considering the graphic strength, observation and measurement were conducted on all the 542 joints of this project. The results revealed that the location errors of them were in the majority below 1 cm, the maximum 1. 8 cm, so the surveying precision accuracy and the quality of the installation work both accomplished the intended purpose.
出处
《徐州建筑职业技术学院学报》
2005年第2期19-21,52,共4页
Journal of XUZHOU Institute of Architectural Technology
关键词
大屋盖网架
球心位置
前方交会法
图形强度
交会角
精度
housetop net structure
location of centre of a sphere
forward intersection method
graphic strength
intersection angle
precision accuracy
