The　gymnasium　of　Northwestern　University　Chang　an　Campus　is　a　new　type　of　chord-supported　space　structure,　which　is　a　complex　spatial　prestressed　structural　system.　The　upper　part　of　the　roof　structure　is　composed　of　a　radial　inverted　triangular　tube　truss　structure,　the　lower　part　is　composed　of　circumferential　cables　and　radial　cables,　and　the　upper　structure　and　the　lower　structure　arc　connected　by　vertical　struts.　In　this　paper,　finite　clement　software　is　used　to　simulate　and　analyze　the　construction　process　of　the　structure,　and　the　stress　and　deformation　of　the　structure　in　different　construction　stages　arc　studied.　The　structural　stress　and　deformation　caused　by　cable　tension　are　analyzed,　the　influence　of　different　unloading　schemes　on　structural　performance　is　studied,　and　a　reasonable　structural　unloading　scheme　is　proposed.　The　results　show　that　the　rotary　cumulative　slip　construction　scheme　adopted　for　the　structure　installation　is　reasonable,　the　structural　stress　and　deformation　are　small　during　the　construction　process.　The　overall　stiffness　of　the　structure　increases　with　the　construction　process,　and　the　stress　is　unevenly　distributed.　The　simulation　analysis　of　the　construction　process　can　provide　guidance　and　early　warning　for　the　on-site　installation　of　the　structure,　and　provide　technical　reference　for　the　construction　of　similar　projects.　©　2024　Science　Press.　All　rights　reserved.