Damage Deformation of Flexure-Yielding Steel-Reinforced Concrete Coupling Beams: Experimental and Numerical Investigation

Table 4

Chord rotation of specimens at the individual damage characteristic point.

Specimen number	θc (rad)	θsty (rad)	θrty (rad)	θswy (rad)	θcc (rad)	θcs (rad)	θrb (rad)	θrf (rad)
Beam1	0.0012	0.0033	0.0072	0.0140	0.0238	0.0403	0.0502	0.0609
Beam2	0.0013	0.0063	0.0065	0.0120	0.0192	0.0385	0.0451	0.0558
Beam3	0.0014	0.0044	0.0091	0.0095	0.0139	0.0378	0.0478	0.0560
Beam4	0.0009	0.0041	0.0072	0.0085	0.0233	0.0416	0.0485	0.0565
Beam5	0.0008	0.0053	0.0078	0.0078	0.0179	0.0346	0.0444	0.0586
Beam6	0.0010	0.0065	0.0065	0.0100	0.0237	0.0485	0.0522	0.0653
Beam7	0.0013	0.0039	0.0105	0.0131	0.0201	0.0430	0.0511	0.0593

Note: θ_c, θ_sty, θ_rty, θ_swy, θ_cc, θ_cs, θ_rb, and θ_rf represent the chord rotation of specimens at damage states of concrete cracking, steel tensile yielding, rebar tensile yielding, steel web principle tensile yielding, concrete crushing, concrete spalling, rebar buckling, and rebar fracture, respectively. For Beam5, rebar tensile yielding and steel web principle tensile yielding occurred at the same time. For Beam6, steel tensile yielding and rebar tensile yielding occurred at the same time.