Mechanical Performance and Stress–Strain Relationships for Grouted Splices Under Tensile and Cyclic Loadings

Lin, Feng; Wu, Xiaobao

doi:10.1007/s40069-016-0156-5

International Journal of Concrete Structures and Materials

Table 10 Parameters for stress–strain relationships of specimens under cyclic loadings at high stress and at large strain.

From: Mechanical Performance and Stress–Strain Relationships for Grouted Splices Under Tensile and Cyclic Loadings

Loading procedure	Specimen no.	Parameter for skeleton lines					E ₁ (MPa)	E ₂ (MPa)	E ₃ (MPa)	E ₄ (MPa)	α _f	\( \alpha_{\text{f}}^{\text{'}} \)	\( {{\Delta }}\varepsilon_{ - } \)	\( \Delta \varepsilon_{\text{ + }} \)
Loading procedure	Specimen no.	f _y (MPa)	f _u (MPa)	E (MPa)	E _h (MPa)	Δε _y	E ₁ (MPa)	E ₂ (MPa)	E ₃ (MPa)	E ₄ (MPa)	α _f	\( \alpha_{\text{f}}^{\text{'}} \)	\( {{\Delta }}\varepsilon_{ - } \)	\( \Delta \varepsilon_{\text{ + }} \)
Cyclic loading at high stress
	CH–H400D16	467.5	585.5	181510	2727	0.00322	205174	238687	293863	413274	0.26	0	0.00140	0.00149
	CH–H400D25	418.0	592.0	168782	4126	0.00175	196075	198060	175580	194431	0.03	0.13	0.00041	0.00051
	CH–H400D32	432.5	597.0	168339	2640	0.00268	177940	191980	252267	351380	0	0.10	0.00022	0.00027
	CH–H500D16	571.0	697.5	180428	3705	0.00350	183078	261872	191035	283574	0.16	0.03	0.00120	0.00120
	CH–H400D25	534.5	637.5	170658	4504	0.00492	205516	227836	236655	345719	0.05	0.05	0.00029	0.00044
	CH–H500D32	562.0	662.0	167273	3362	0.00392	187300	209034	304593	343868	0.04	0.10	0.00041	0.00043
	Mean value	–	–	–	–	–	192514	221245	242332	322041	0.09	0.07	0.00066	0.00072
Cyclic loading at large strain
2ε _ys	CL-H400D16	467.5	585.5	181510	2727	0.00322	187634	261311	209231	347046	0.12	0.12	0.00089	0.00089
	CL-H400D25	418.0	592.0	168782	4126	0.00175	157263	223725	165530	308782	0.12	0.12	0.00014	0.00012
	CL-H400D32	432.5	597.0	168339	2640	0.00268	171374	202498	157567	249119	0.09	0.09	0.00008	0.00008
	CL-H500D16	571.0	697.5	180428	3705	0.00350	169519	214101	180259	237931	0.00	0.00	0.00131	0.00124
	CL-H400D25	534.5	637.5	170658	4504	0.00492	185528	218656	203445	288099	0.06	0.12	0.00025	0.00022
	CL-H500D32	562.0	662.0	167273	3362	0.00392	164670	207297	187649	328763	0.08	0.12	0.00080	0.00077
	Mean value	–	–	–	–	–	172665	221265	183947	293290	0.08	0.10	0.00058	0.00055
5ε _ys	CL-H400D16	467.5	585.5	181510	2727	0.00322	134134	195127	126959	207833	0.12	0.12	0.00155	0.00147
	CL-H400D25	418.0	592.0	168782	4126	0.00175	140037	203494	139535	203851	0.12	0.12	0.00108	0.00070
	CL-H400D32	432.5	597.0	168339	2640	0.00268	146853	184951	143850	231337	0.09	0.09	0.00031	0.00023
	CL-H500D16	571.0	697.5	180428	3705	0.00350	113363	189730	79869	188223	0.07	0.25	0.00204	0.00121
	CL-H400D25	534.5	637.5	170658	4504	0.00492	143146	203218	118383	257628	0.17	0.12	0.00125	0.00088
	CL-H500D32	562.0	662.0	167273	3362	0.00392	117151	176245	72700	206512	0.12	0.12	0.00139	0.00108
	Mean value	–	–	–	–	–	132447	192127	113549	215897	0.12	0.14	0.00127	0.00093

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