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Artificial Plastic Hinge at Beam End of Building Concrete Structure and Its Construction Method

A technology of concrete structure and plastic hinge, which is applied in the direction of building structure and architecture, and can solve the problems that have not been widely used

Inactive Publication Date: 2017-03-08
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these methods have achieved the seismic failure mode of the beam-hinge mechanism, they have not been widely used due to construction, economic and other reasons.

Method used

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  • Artificial Plastic Hinge at Beam End of Building Concrete Structure and Its Construction Method
  • Artificial Plastic Hinge at Beam End of Building Concrete Structure and Its Construction Method
  • Artificial Plastic Hinge at Beam End of Building Concrete Structure and Its Construction Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0138] Such as figure 1 as well as Figure 3 ~ Figure 7 As shown, the artificial plastic hinge at the beam end of the building concrete structure of the present invention, the building concrete structure includes a beam 1 to be set and a column connected to the beam 1 to be set, and the beam 1 to be set is provided with a beam bottom longitudinal reinforcement 3- 1. Beam top longitudinal reinforcement 3-2, beam stirrup 7, beam waist reinforcement 8 and S-shaped stirrup 10, the artificial plastic hinge at the beam end includes a plastic hinge structure arranged at the end of the beam 1 to be installed and the column connected box 4, and the plastic hinge structural reinforcement 6 and tie reinforcement 9 for fixing the plastic hinge structural box 4; the plastic hinge structural box 4 is placed between the longitudinal reinforcement 3-1 at the bottom of the beam and the longitudinal reinforcement 3-2 at the top of the beam, so The number of the plastic hinge structural steel b...

Embodiment 2

[0147] Such as figure 2 as well as Figure 3 ~ Figure 7 As shown, the difference between this embodiment and Embodiment 1 is that the column is a side column 2-2, the number of the plastic hinge construction box 4 is one, and one end of the plastic hinge construction steel bar 6 crossed in pairs Through the plastic hinge structure reinforcement hole 12 arranged on the plastic hinge structure box 4, the other end of the plastic hinge structure reinforcement 6 crossed in pairs stretches out from the connection node between the beam 1 to be set and the column and connects with the side column 2-2 rebar connections. All the other structures are the same as in Example 1.

[0148] During specific implementation, the plastic hinge structural reinforcement 6 extends out the length L of the beam 1 to be set. 4 is 250mm.

[0149] Such as Figure 8 As shown, the method for constructing the artificial plastic hinge at the beam end of the building concrete structure in embodiment 1 a...

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Abstract

The invention discloses an artificial plastic hinge at the beam end of a building concrete structure, which comprises a plastic hinge construction box, a plastic hinge construction reinforcement bar and a tie reinforcement; the plastic hinge construction box is placed between the beam bottom longitudinal reinforcement and the beam top longitudinal reinforcement, and a plurality of plastic hinges Structural steel bars are placed crosswise in pairs at the connection nodes between the beams and columns to be set, plastic hinge structural steel holes are provided on the front of the plastic hinge structural box near the upper edge and lower edge, and the plastic hinge structural box is equipped with holes. Two flame-retardant foam board accommodation chambers arranged side by side for placing flame-retardant foam boards, S-shaped stirrups are arranged between the two flame-retardant foam board chambers and concrete is poured, and the plastic hinge construction box is located in the middle of the side Holes for tie reinforcement are provided; the invention also discloses a construction method for artificial plastic hinges at beam ends of building concrete structures. The invention has reasonable design, can ensure good anti-seismic ability of the structure, simplifies the construction process, ensures the construction quality, has strong practicability, and is convenient for popularization and use.

Description

technical field [0001] The invention belongs to the technical field of civil engineering design and construction, and in particular relates to an artificial plastic hinge at the beam end of a building concrete structure and a construction method thereof. Background technique [0002] Reinforced concrete structure is one of the most widely used building structures in my country and even in the world. "Strong columns and weak beams" and "strong joints and weak members" are the basic design requirements for structures in various countries' seismic codes. However, due to the over-reinforcement in the design, the floor slab connected to the beam, the filling wall above the beam, and the construction quality, on the one hand, the actual stiffness of the beam is artificially increased, and on the other hand, the bearing capacity of the beam-column joint is artificially reduced. Rigidity makes it difficult for the actual building structure to achieve the above design purposes under...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/36E04B1/58
Inventor 黄华吴涛刘伯权刘喜
Owner CHANGAN UNIV
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