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A beamless floor structure with hyperbolic arch shell and its construction method

A beamless floor and construction method technology, which is applied to the arched structure, the structure of the dome, the floor slab, etc., can solve the problems of large amount of concrete and steel bars, high engineering cost, and insufficient use of concrete compressive capacity, etc. Improve bearing capacity, improve production and construction efficiency, and avoid the effect of tensile properties

Active Publication Date: 2021-09-03
HUNAN CITY UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the compressive capacity of concrete is not fully utilized, the amount of concrete and steel bars is large, and the project cost is high

Method used

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  • A beamless floor structure with hyperbolic arch shell and its construction method
  • A beamless floor structure with hyperbolic arch shell and its construction method
  • A beamless floor structure with hyperbolic arch shell and its construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] see figure 1 , figure 2 and image 3 , a beamless floor structure with a cast-in-place hyperbolic arch shell, including a column 1, a filling layer 3 and a hyperbolic arch shell 4, the columns 1 are arranged at intervals according to the horizontal X and the longitudinal Y, and the top of the column 1 is provided with a supporting plate 7, The projected area of ​​the supporting plate 7 on the horizontal plane is greater than the projected area of ​​the column. The supporting plate 7 is a polygonal flat plate, and its thickness is thicker near the center and thinner near the edge; the upper surface of the hyperbolic arch shell 4 and The lower surfaces are all in the shape of a hyperbolic arch, and the four corners of the hyperbolic arch shell 4 are respectively connected to the supporting plates 7 of the four columns 1, and the edges of two adjacent hyperbolic arch shells 4 are connected to form a connecting part 2, and the connecting part 2 is arched; the filling lay...

Embodiment 2

[0065] The beamless floor structure with a prefabricated hyperbolic arch shell is different from Embodiment 1 in that the hyperbolic arch shell 4 is a prefabricated hyperbolic arch shell. Such as Figure 4 and Figure 5 As shown, the opposite edges of adjacent prefabricated hyperbolic arch shells 4 have arch ribs 9 extending downward, and the adjacent arch ribs 9 are fixedly connected by bolts 10, and the joints 11 between the arch ribs 9 are filled with concrete or gelled material, arch ribs 9 and joining seams 11 together form an arch-shaped connecting portion 2, which enables rapid assembly.

[0066] A construction method for a beamless floor structure with a prefabricated hyperbolic arch shell mainly includes the following steps:

[0067] 1), cast-in-situ or prefabricated column 1, prefabricated hyperbolic arch shell 4;

[0068] 2) hoisting the prefabricated hyperbolic arch shell 4, and implanting the protruding steel bars at the corners of the prefabricated hyperbolic ...

Embodiment 3

[0073] The beamless floor structure with the prefabricated hyperbolic arch shell is different from the embodiment 2 in that the hyperbolic arch shell 4 adopts the prefabricated hyperbolic arch shell. Such as Figure 6 and Figure 7 As shown, the prefabricated hyperbolic arch shell 4 includes more than two prefabricated modules 4.1, the joints of adjacent prefabricated modules 4.1 have protruding steel bars, and the protruding steel bars of adjacent prefabricated modules 4.1 are fixedly connected to each other, and the adjacent prefabricated modules 4.1 The gap between them is filled with concrete or grout; in addition, the ends of the steel bars 6 in the adjacent hyperbolic arch shell 4 are anchored inside the connection part 2, and can be bound and / or welded with the steel bars in the connection part 2.

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Abstract

The invention discloses a beamless floor structure with a hyperbolic arch shell, which comprises columns, filling layers and hyperbolic arch shells, the columns are arranged at intervals in the horizontal and vertical directions, and a supporting plate is arranged on the top of the columns, The projected area of ​​the supporting plate on the horizontal plane is larger than the projected area of ​​the column, the upper surface and the lower surface of the hyperbolic arch shell are both hyperbolic arched, and the four corners of the hyperbolic arch shell are respectively connected On the supporting plates of the four columns, the edges of two adjacent hyperbolic arch shells are connected to form a connecting portion, and the connecting portion is arched; the filling layer covers the hyperbolic arch shells, and the filling layer covers the hyperbolic arch shells. The top surface of the layer is flat. The invention makes full use of the superior compressive performance of concrete, and the double-curved arch shell evenly distributes the load to the column and the arch connection, avoids the poor tensile performance of concrete, and can save a lot of steel bars and concrete.

Description

technical field [0001] The invention relates to a beamless floor structure with a hyperbolic arch shell and a construction method thereof, belonging to the technical field of building structures. Background technique [0002] The tensile strength of concrete is generally only 1 / 10 to 1 / 20 of the compressive strength, so when designing concrete components, it is always hoped that the concrete components can maximize the compressive performance and avoid tensile stress. In the structural design of bridges, arch bridges are the most common way, but arch structures are rarely seen in the design of residential buildings. [0003] Brick arch floor slabs were used in brick masonry houses decades ago. The method is to build arches with bricks on the top of the next floor, and the upper part of the arches is filled and leveled as the floor slab of the upper floor. With the improvement of the economy of reinforced concrete and the requirements for earthquake resistance , this practic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B5/43E04B1/32
CPCE04B1/32E04B5/43
Inventor 余东袁健毛广湘张丹孟新田冯浩雄孟一刘益虹彭朝晖
Owner HUNAN CITY UNIV