Hybrid Prestressed Concrete Beam with Inverted T Section and Its Panel Construction Method

Abstract

The invention discloses an inverted T-section hybrid prestressed concrete beam, which includes: a central body part with an inverted T-shaped section, including a lower flange, a web and a reinforced partition, and the web extends from the width of the lower flange The central part of the web is formed vertically upwards, and the upper part is equipped with a plurality of joint holes penetrating through the length direction at a predetermined interval or formed at a predetermined depth. The reinforcing partition is formed on both sides of the web and has a protruding length of a predetermined thickness , for resisting out-of-plane deformation; end partitions, the end partitions are formed at both ends in the length direction of the central body with a rectangular cross-section and a specified length; a reinforcing beam, the reinforcing beam is formed of a steel material of a specified length, And the two side surfaces of the upper part of the web between the reinforcement bulkhead and the end bulkhead are bonded along the length direction by a fastening member inserted into the bonding hole.

Description

Technical field [0001] The present invention relates to a pouring T-shaped hybrid prestressed concrete beam, and a panel construction method using the prestressed concrete beam and a semi-prefabricated concrete panel with wide field casting, pre-prestressed T-section When the stress concrete beam is prevented from being deformable on the upper side of the upper portion of the web, and the effective resistance due to the high weight of the inverted T-section is active, when the operator moves and placed the prefabricated concrete floor panel Or when the template sheet can be ensured. Background technique [0002] Typically, the width of the upper flange and the thickness of the web are the same as the center portion, at the bottom of the center portion, and therefore, when the fixing device is configured to make the tension of the tension, when the center of gravity is formed at the center of the beam. Under the load of the upper edge of the beam, the maximum compressive stress ca...

AI Technical Summary

Problems solved by technology

At this time, although reinforcing ribs are provided along the span direction, that is, longitudinally, the strength of the transverse direction perpendicular to the span is relatively reduced, and cracks occur in parallel with the span direction during construction, thereby limiting the strength of the precast concrete panel. Wide or additional lifting auxiliary devices are required, resulting in increased production costs and reduced economic efficiency

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