Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Prefabricated steel plate-high-ductility concrete coupling beam

A technology of high ductility concrete and steel plate, applied in the direction of building components, building types, earthquake resistance, etc., can solve the problems of brittle failure, the ductility of coupling beams and energy dissipation capacity cannot be fully exerted, and achieve the effect of strengthening the connection.

Pending Publication Date: 2017-06-16
西安五和土木工程新材料有限公司
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Practice has proved that this type of coupling beam can not only increase the shear bearing capacity, but also more effectively improve the seismic performance such as deformation capacity, stiffness degradation and energy consumption, and the construction of the coupling beam is convenient and the structure is simple, which is conducive to engineering popularization and application. However, the brittleness of the concrete material itself makes ordinary concrete materials prone to brittle failure under the action of reciprocating loads such as earthquakes.
Due to the large difference in the performance characteristics of steel and concrete, this structural component will not be able to fully exert the ductility and energy dissipation capacity of the composite coupling beam due to premature cracking or compression of the concrete.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Prefabricated steel plate-high-ductility concrete coupling beam
  • Prefabricated steel plate-high-ductility concrete coupling beam
  • Prefabricated steel plate-high-ductility concrete coupling beam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0042] The coupling beam in this embodiment is an energy-consuming coupling beam with a span-to-height ratio of 1.5 for a high-rise residential building, with a net span of 600mm and a cross-sectional size of 400×200mm; the thickness of the outer steel plate 4 is 5mm, and the steel plate adopts Q235; T-shaped steel plate The connector 2 is made of Q235 steel, the diameter of the perforation 9 is 30mm, and the spacing is 30mm. The longitudinal spacing of the T-shaped steel plate connector 2 is 150mm and the transverse spacing is 150mm; the H-beam 1 uses the national standard H400x200a model; the diameter of the anchoring steel bar 10 is 12mm, the spacing is 150mm, the diameter of the pouring hole 8 is 150mm, and only one pouring hole is provided in this embodiment.

[0043] construction process:

[0044] 1) First, cut the required steel plate 4 according to the size of the coupling beam; pre-welded a number of T-shaped steel plate connectors 2 on the steel plates on both sides of th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a prefabricated steel plate-high-ductility concrete coupling beam. The prefabricated coupling beam comprises H-shaped steel, high-ductility concrete, exterior steel plates and T-shaped steel plate connectors. The H-shaped steel is welded to the left sides and the right sides of the exterior steel plates respectively, and the exterior steel plates are welded with one flange plate of the H-shaped steel. Two steel plates of the web portion of each exterior steel plate and the upper and lower steel plates are welded to form a rectangular cavity, and a plurality of T-shaped steel plate connectors are welded on the steel plates on two sides of each web portion in advance. A plurality of casting holes for casting the high-ductility concrete are reserved in the top steel plates of the exterior steel plates. The H-shaped steel on two sides of each exterior steel plate is cast in shear wall limbs on two sides to form the prefabricated coupling beam. The prefabricated coupling beam is easy to construct, high in ductility and good in anti-seismic property.

Description

Technical field [0001] The invention belongs to the field of civil engineering and relates to an energy-consuming coupling beam, in particular to a prefabricated steel plate-high ductility concrete coupling beam. Background technique [0002] Coupling beams are important energy-consuming components of shear wall structures or frame-shear wall structures. Under strong horizontal seismic loads, traditional reinforced concrete coupling beams are prone to brittle shear failure, with poor energy consumption and shear resistance. low. In order to solve the problems of ductility, energy consumption and bearing capacity, domestic and foreign researchers have successively adopted many improvement methods, such as: cross concealed column reinforced coupling beam, diagonal cross diagonally reinforced coupling beam, diamond-shaped reinforced coupling beam, Connecting beams combined with cross-reinforced steel bars and diamond-shaped steel bars and three-layer composite closed constrained st...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): E04H9/02E04B1/98
CPCE04H9/021E04H9/024
Inventor 邓明科卜新星张阳玺张思海
Owner 西安五和土木工程新材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products