Cost and CO₂ Emission Reduction Effects of a Partially Encased Composite Precast Concrete Beam

Table 2

Design parameters of SCCBs.

Item	tw	tf	h2	b	be	h1	Bolts	Slab rebar
SCCB1	12	14	150	200	1400	100	2∗D8@100	Bottom: X&Y D8@200
								Top: X&Y D8@200
SCCB2	14	18	125	160	1200	125	2∗D8@100	Bottom: X&Y D8@200
								Top: X&Y8@200
SCCB3	18	16	100	180	1000	150	2∗D8@100	Bottom: X&Y D8@200
								Top: X&Y D8@200

Note. The design value of the steel yield strength is 315 MPa (Q345); D, diameter of reinforcement; @, representative spacing; X&Y, horizontal and vertical.