Abstract<br>This design is reinforced concrete frame structure design, the building has 6 floors, the height is 18.75m, the area is<br>5191.8m ², Project Name: Architectural and structural design of No.4 dormitory building of Henan Agricultural University; Firstly, the fifth axis frame is selected for analysis, and the section size of beam, slab and column is initially calculated, and the dead live load and the internal force of the frame under the action of dead live load are calculated; Secondly, the horizontal load is analyzed to calculate the internal force of the frame under the horizontal load; Thirdly, the internal forces of the frame under the constant live load and horizontal load are combined to find the control load and calculate the reinforcement of the beam and column; Finally, the floor, stairs and foundation reinforcement calculation.<br>Key words: frame structure, horizontal load, internal force, composite foundation<br>
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