Construction Method and Process Optimization of Prestress Reverse Tensioning for Large-Span Bidirectional Suspension Steel Roof Structures

Table 6

Simulated deformation values of monitoring points.

Construction phase		Monitoring values/vertical displacement (mm) (negative values indicate downward movement)
		1	2	3	4	5	6	7	8
Lowering stages	First stage	−20	−17	−49	−51	−34	−35	0	3
	Second stage	−32	−26	−81	−86	−57	−60	5	8
	Third stage	−41	−37	−105	−112	−74	−78	9	11
Rebound stage		−37	−20	−88	−67	−62	−45	8	9
Rebound value (maximum downward value − maximum rebound value)		4	17	17	45	12	33	1	2