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Prestressed concrete rigid frame cable beam

A prestressed, concrete technology, applied in the direction of joists, girders, trusses, etc., can solve the problems of self-heavy beams, difficult quality assurance, unfavorable earthquake resistance, etc., and achieve the effect of reducing the effect of seismic force and saving the volume of formwork materials

Inactive Publication Date: 2010-10-13
白福波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a prestressed concrete rigid frame cable beam to solve the existing reinforced concrete beams that are not conducive to earthquake resistance and have many consumables due to the excessive weight of the beam body (accounting for up to 65% of the total weight of the floor beams and slabs). , the formation of large-volume concrete construction, the quality is not easy to guarantee and other problems

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  • Prestressed concrete rigid frame cable beam
  • Prestressed concrete rigid frame cable beam
  • Prestressed concrete rigid frame cable beam

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Experimental program
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specific Embodiment approach 1

[0009] Specific implementation mode one: as Figure 1-4 As shown, the prestressed concrete rigid frame cable beam described in this embodiment includes an upper beam 1, a lower beam 2 and a plurality of columns 4, and the rigid frame cable beam also includes a cable beam 3, and the shape of the cable beam 3 is a curved cable Zigzag shape (the meander zigzag shape means that each segment of the zigzagging cable is a straight line, that is, the outline formed by connecting multiple straight lines is an arc-shaped curve; each segment means that every segment between two adjacent columns 4 A section of the cable beam 3 is a straight line), the upper beam 1 and the lower beam 2 are arranged in parallel, a plurality of columns 4 are arranged in parallel between the upper beam 1 and the lower beam 2, and the cable beam 3 is arranged between the upper beam 1 and the lower beam 2 And it is tangent to the lower beam 2, the cable beam 3 is a prestressed member, and the cable beam 3 is pr...

specific Embodiment approach 2

[0010] Specific implementation mode two: as Figure 1-2 As shown, the rigid frame cable beam in this embodiment also includes a first frame column 5 and an adjacent cross-slope beam 7, one side of the cable beam 3 is connected to one side of the first frame column 5, and the adjacent span One end of the rod folded beam 7 is connected to the opposite side of the first frame column 5 . The other end of the adjacent span beam 7 is connected with the adjacent ordinary beam 12 。 The external management method of adjacent beam end nodes described in this embodiment is applicable to the situation of super-long buildings. Other components and connections are the same as those in the first embodiment.

[0011] The adjacent beam 7 spanning the oblique bar is obliquely arranged on the adjacent ordinary beam 12 and the first frame column 5 to form a corner space 10, and the steel beam tensioning of the cable beam 3 is carried out in the corner space 10, and then sealed after the constru...

specific Embodiment approach 3

[0012] Specific implementation mode three: as Figure 1-2 As shown, the rigid frame cable beam in this embodiment also includes a second frame column 8 and an adjacent beam 6, and a beam end slope 6-1 is provided at the end of the adjacent beam 6, and the other side of the cable beam 3 is connected to the second One side of the second frame column 8 is connected, and the other side of the second frame column 8 is connected with the vertical end face of the adjacent beam 6 provided with the beam end slope 6-1. The notch at the top of the adjacent span beam on the other side of the cable beam is designed to facilitate the tensioning of the steel beam and the anchorage for protection. Beam end slope 6-1 is used for cable tensioning. The external management method of the adjacent beam end nodes described in this embodiment is suitable for the situation where the span of adjacent beams is not greater than 12 meters. Other compositions and connections are the same as those in Embo...

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Abstract

The invention discloses a prestressed concrete rigid frame cable beam, which relates to a rigid frame cable beam and solves the problems that the conventional reinforced concrete beam is not favorable for seismic resistance, consumes more materials, forms large-volume concrete construction, is not easy to guarantee the quality and the like due to over-high dead weight (up to 65 percent of the total weight of floor boards) of a beam body. A cable beam is bent and folded, an upper beam and a lower beam are arranged in parallel, a plurality of upright posts are arranged in parallel between the upper beam and the lower beam, the cable beam is arranged between the upper beam and the lower beam and is tangent with the lower beam, the cable beam is a prestressed member, and a prestressed steel bar bundle is arranged in the cable beam; the upper beam, the lower beam, the cable beam and the plurality of upright posts are rigidly connected together to form the rigid frame cable beam; and a plurality of holes with unequal sizes are formed between the upper beam and the lower beam. Compared with a solid beam under the same condition, the rigid frame cable beam of the invention has the advantages that: the dead weight of the beam body can be lightened by 40 to 50 percent; and air-conditioning equipment pipelines and the like can pass through the holes with unequal sizes between the upper beam and the lower beam, so the floor height is not occupied.

Description

technical field [0001] The invention relates to a rigid frame cable beam used for floor load bearing, in particular to a prestressed concrete rigid frame cable beam. Background technique [0002] In modern buildings, it is often necessary to arrange a floor space with a beam span of 12 meters to 45 meters. The current solution is: reinforced concrete girders are used as floor slab supports. The reinforced concrete beams mostly use solid prestressed beams, the beam height is 0.7-3.0 meters, and the beam width is 0.35-0.9 meters. The problem of adopting the above scheme is that the self-weight of the beam body is too large, which accounts for up to 65% of the total weight of the floor beams and slabs, and consumes too much material. When the span is large and the height of the beam is large, a large-volume concrete construction is formed, the quality is not easy to guarantee, the construction is difficult, and the amount of formwork support is large. Most of the bearing capa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/26
Inventor 白福波张小冬刘界鹏梅洪元
Owner 白福波