Cast-in-situ inverted-T-shaped bent cap and pier and pier construction process

The invention discloses a cast-in-situ inverted-T-shaped bent cap and a pier as well as a pier construction process. The cast-in-situ inverted-T-shaped bent cap comprises a rigid skeleton and a concrete structure, wherein the concrete structure is cast in the rigid skeleton; the rigid skeleton comprises a lower baffle plate, an upper baffle plate, a connecting plate and two side baffle plates, and the lower baffle plate, the upper baffle plate and the connecting plate are connected to form an I-shaped steel structure; the side baffle plates are respectively arranged at the two side edges of the lower baffle plate and extend upwards. The pier comprises a stand column and the cast-in-situ inverted-T-shaped bent cap, wherein the cast-in-situ inverted-T-shaped bent cap is arranged on the stand column. The pier construction process comprises the following steps: because the rigid skeleton is prefabricated, and the stand column is built, the rigid skeleton is lifted on the stand column, and the anchoring steel bar on the stand column is inserted into the rigid skeleton; the rigid skeleton is used as a concrete casting template to cast the concrete structure, and finally the pier is formed. The cast-in-situ inverted-T-shaped bent cap and the pier as well as the pier construction process have the advantages that the construction is convenient, no support or a few supports can be arranged, and the interference on ground traffic is smaller.