Review of Design Flexural Strengths of Steel–Concrete Composite Beams for Building Structures

International Journal of Concrete Structures and Materials

Table 3 Design results calculated by PSDM: interior beams under positive bending (kN m).

f _ck (MPa)	F _yk (MPa)	AISC 360-10		KSSC–KCI		Eurocode 4		JSCE 2009
f _ck (MPa)	F _yk (MPa)	M _pl	M ⁽¹⁾_d	β	M ⁽¹⁾_d	β	M ⁽¹⁾_d	M ⁽¹⁾_d
21	235	1268	1141	0.957	1138	–⁽²⁾	1196	1123
	315	1648	1483	0.952	1422	–⁽²⁾	1501	1407
	355	1803	1623	0.951	1564	–⁽²⁾	1653	1545
	450	2167	1950	0.934	1868	0.949	1907	1871
	650	2920	2628	0.782	2097	–⁽³⁾	–⁽³⁾	–⁽³⁾
30	235	1301	1171	1.000	1287	–⁽²⁾	1293	1203
	315	1709	1538	0.958	1550	–⁽²⁾	1628	1516
	355	1907	1716	0.956	1694	–⁽²⁾	1783	1677
	450	2354	2119	0.949	2025	0.961	2062	2010
	650	3122	2810	0.881	2539	–⁽³⁾	–⁽³⁾	–⁽³⁾

⁽¹⁾ M _d = ϕM _pl for AISC 360-10 (or KBC 2014), M _pl or βM _pl for Eurocode 4, βM _pl for KSSC–KCI 2014, and M _pl/γ _b for JSCE 2009.
⁽²⁾For Eurocode 4, β shall be applied for high strength steel of F _yk = 420 and 460 MPa.
⁽³⁾For Eurocode 4 and JSCE 2009, the plastic stress distribution method shall not be applied for F _yk = 650 MPa.