Rebar cage module for beam reinforcement system and manufacturing method of beam reinforcement system

A rebar cage module, comprising:

• an upper-opening rebar net having an upper opening, comprising:
• a plurality of upper-opening rebars respectively arranged in parallel, wherein each of the upper-opening rebars includes:
• a first erect bar portion having a first bend portion;
• a second erect bar portion having a second bend portion and arranged in parallel with the first erect bar portion;
• and
• a first bottom rib extending from the first erect bar portion to the second erect bar portion;
• a first traverse rib configured to connect one side of the plurality of upper-opening rebars;
• a second traverse rib configured to connect the other side of the plurality of upper-opening rebar;
• and
• a third traverse rib configured to connect the plurality of upper-opening rebars and arranged in parallel with the first traverse rib;
• a lower-opening rebar net having a lower opening oriented to a direction opposite to the upper opening, the lower-opening rebar net comprising:
• a plurality of lower-opening rebars respectively arranged in parallel, the plurality of lower-opening rebars and the plurality of upper-opening rebars are disposed to be overlapped with each other, wherein each of the lower-opening rebars includes:
• a third erect bar portion having a third bend portion;
• a fourth erect bar portion having a fourth bend portion and arranged in parallel with the third erect bar portion;
• and
• a second bottom rib extending from the third erect bar portion to the fourth erect bar portion;
• a fourth traverse rib configured to connect one side of the plurality of lower-opening rebars;
• and
• a fifth traverse rib configured to connect the other side of the plurality of lower-opening rebars opposite to the fourth traverse rib, the fifth traverse rib and the fourth traverse rib arranged in parallel;
• wherein the upper-opening rebars are disposed to be overlapped with the lower-opening rebars, and wherein the first erect bar portion reaches the third bend portion, the second erect bar portion reaches the fourth bend portion, the third erect bar portion reaches the first bend portion, and the fourth erect bar portion reaches the second bend portion.