| 摘要 |
PURPOSE: A PC(Precast Concrete) shell beam construction method is provided to achieve the integrality of the cast-in-place construction and air reduction and the high quality of the precast construction. CONSTITUTION: A PC shell beam is in U-shaped sectional shape in the center to secure the integrality with a slab. Concrete is filled at both ends of the U-shaped beam to apply the post-tension construction. A pretension is used in the lower part of the member. A precast concrete beam is jointed by forming a pocket for a small beam in the PC shell beam. When using the small beam as a steel frame, a steel sheet is inserted in the PC shell beam previously. The PC shell beam is joined with the small beam through a bolt after welding a shear tap. A tip reinforcing steel is protruded above a compensating end to be integrally moved with the slab. A pillar and the PC shell beam are connected through a pressurizing method by inserting a tendon in the portion of the U-shaped beam to be filled with the concrete.
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