Study on Seismic Performance of Improved High-Strength Concrete Pipe‐Pile Cap Connection

Table 4

Concrete compressive strength.

Concrete	No. 1 (MPa)	No. 2 (MPa)	No. 3 (MPa)	No. 4 (MPa)	No. 5 (MPa)	Mean (MPa)
Normal pile	74.9	84.2	88.4	89.3	89.1	85.2
Volume fiber content 1.0%	88.1	89.5	82.1	87.6	88.9	87.2
CAP of CT-7	45.7	32.9	64	58.9	37.8	47.9
CAP of CT-8	49.9	46.9	45.6	47.9	47.5	47.5
CAP of CT-8	56.4	32.9	50.6	56.9	57.0	50.8
CAP of CT-10	57.0	50.1	55.6	58.3	57.0	55.6

Note. The concrete strength of normal pile contains the specimens CT-7, CT-8, and CT-10, volume fiber content 1.0% refers to the concrete strength of pile in CT-9, and CAP of CT-7 refers to the concrete strength of cap in CT-7.