Abstract:The Huizhou Quanwan coal terminal project constructed two large enclosed strip-shaped coal bunkers with a length of 500 m and a span of 118 m.The upper part of the bunker was deployed with a space frame of about 745 000 m2,purlin and high-strength profiled steel plate structure.The space frame was constructed by orthogonal quadrangular pyramid double-layer three-center cylindrical arc reticulated shell,and the primary purlins and secondary purlins were arranged in two layers successively.In order to speed up the installation efficiency and improve the installation accuracy,according to the project characteristics and site conditions,the space frame structure was assembled with a combination of integral jacking,segmental jacking and bulk loading technology at high altitude.Purlins were pre-assembled on the ground into transverse segments and installed with high altitude assembly technology.In order to ensure the installation quality and safety,a comprehensive,systematic and whole process stress automatic monitoring of the upper structure of reticulated shells was carried out,and the construction survey of reticulated shells was carried out simultaneously.It can provide examples and experience for similar projects of waterway engineering.