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High-ductility concrete energy-consuming infill wall frame structure and construction method thereof

A high-ductility concrete and frame structure technology, applied in the direction of walls, building components, building structures, etc., can solve the problems of casualties, property, loss, etc., to achieve the effect of convenient construction, increase bearing capacity, and reduce damage

Active Publication Date: 2020-08-25
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Failure or collapse of an infill wall can cause serious injury, death and property damage

Method used

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  • High-ductility concrete energy-consuming infill wall frame structure and construction method thereof
  • High-ductility concrete energy-consuming infill wall frame structure and construction method thereof
  • High-ductility concrete energy-consuming infill wall frame structure and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1 and 2 As shown, this embodiment provides a high ductility concrete energy-dissipating infill wall frame structure. There is a 15mm thick high ductility concrete surface layer 5, and the thickness of the polystyrene foam board flexible connection layer is 20mm;

[0044] The formula of high ductility concrete used in this example is: cement, fly ash, silica fume, sand, PE fiber, steel fiber and water, wherein, in terms of mass ratio, cement: fly ash: silica fume: sand: water = 1: 0.1: 0.2: 0.76: 0.22, based on the total volume of cement, fly ash, silica fume, sand and water mixed uniformly, the volume content of PE fiber is 1%, and the volume content of steel fiber is 2 %;

[0045] The concrete used is C30 grade commercial concrete, the frame beams and column reinforcements are all HRB400 grade steel bars, the infill wall is made of MU5.0 sintered hollow bricks (240mm×200mm×115mm), the infill wall is built in the form of Transit, and the thickness of t...

Embodiment 2

[0061] This embodiment is different from embodiment 1 in that:

[0062] This embodiment provides a high ductility concrete energy-dissipating infill wall frame structure with the following dimensions: the length of the frame column centerline is 5.0 m, the column height is 3.0 m, and the thickness of the infill wall is 200 mm; the outer surface of the infill wall 4 is coated with 10 mm Thick high-ductility concrete surface layer 5; the flexible material used is polyurethane foaming agent with a thickness of 10mm;

[0063] The formula of high ductility concrete is: cement, fly ash, silica fume, sand, PE fiber, steel fiber and water, among which, in terms of mass ratio, cement: fly ash: silica fume: sand: water = 1:0.2:0.28 : 0.76: 0.27, taking the total volume of cement, fly ash, silica fume, sand and water as the base, the volume content of PE fiber is 1.3%, and the volume content of steel fiber is 1.3%.

[0064] The structure of this embodiment is carried out above-mentioned...

Embodiment 3

[0069] This embodiment is different from embodiment 1 in that:

[0070] The centerline length of the frame column is 7.0m, the column height is 4.2m, and the thickness of the filling wall is 200mm. The outer surface of the filling wall 4 is coated with a 20mm thick high ductility concrete surface layer 5; the flexible material used is silicone glue with a thickness of 25mm.

[0071] The formula of high ductility concrete is: cement, fly ash, silica fume, sand, PE fiber, steel fiber and water, among which, in terms of mass ratio, cement: fly ash: silica fume: sand: water = 1:0.3:0.4 : 0.76: 0.32, taking the total volume of cement, fly ash, silica fume, sand and water as the base, the volume content of PE fiber is 1.5%, and the volume content of steel fiber is 2%.

[0072] The structure of this embodiment is carried out above-mentioned test, the result shows:

[0073] (1) The failure mechanism of the specimen is beam-hinge failure, the energy-dissipating filling wall and frame...

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Abstract

The invention provides a high-ductility concrete energy-consuming infill wall frame structure and a construction method thereof. The high-ductility concrete energy-consuming infill wall frame structure is used for solving the problems of insufficient bearing capacity, poor ductility and low energy consumption capacity of an ordinary infill wall frame structure. The high-ductility concrete energy-consuming infill wall frame structure is composed of frame columns, frame beams, flexible connection, infill walls and high-ductility concrete surface layers; during construction, flexible materials are first fixed to the frame columns, then the infill walls are built, and finally, the high ductility concrete is evenly pressed and smeared on the surfaces of the infill walls. The bearing capacity, ductility and energy-consuming capacity of the high-ductility concrete energy-consuming infill wall frame structure are significantly higher than that of the ordinary infill wall frame, the restraint effect of the infill walls on the frame columns is reduced, and the damage of the frame columns is reduced. The high-ductility concrete energy-consuming infill wall frame structure has the convenient construction, simple structure and cost saving, and is suitable for new structures and can be used for strengthening and reforming existing structures.

Description

technical field [0001] The invention belongs to the technical field of building structure engineering and reinforcement and transformation, and in particular relates to a high ductility concrete energy-dissipating filled wall frame structure and a construction method thereof. Background technique [0002] Infill wall frame construction is a widely used structural form. When designing the frame structure of the infill wall, the infill wall is regarded as a non-structural component, and the infill wall is regarded as a vertical load acting on the frame structure, and its contribution to the stiffness of the frame structure is considered through the method of reducing the natural vibration period. Interactions between infill walls and frames are ignored. [0003] Under earthquake action, the deformation capacity of the infill wall and the frame is not coordinated, and the infill wall hinders the deformation of the frame. Due to the high stiffness of the infill wall, it bears m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/20E04B2/74E04B1/682E04B1/98E04H9/02
CPCE04B1/20E04B2/74E04B1/6812E04B1/6813E04B1/98E04H9/021E04H9/025
Inventor 邓明科吕浩范洪侃
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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