Assembly type recycled concrete node with steel bar truss girders at end parts and manufacturing method thereof

A technology of recycled concrete and steel trusses, which is applied in building components, earthquake-proof, buildings, etc., can solve problems such as earthquake damage and poor seismic performance, and achieve good overall results.

Active Publication Date: 2013-05-01
BEIJING UNIV OF TECH
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  • Abstract
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Problems solved by technology

[0006] The present invention provides a kind of environmental protection, energy saving, convenient construction, which can improve the anti-seismic performance of prefabricated component beam-column joints. Poor seismic performance of key nodes and severe earthquake damage

Method used

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  • Assembly type recycled concrete node with steel bar truss girders at end parts and manufacturing method thereof
  • Assembly type recycled concrete node with steel bar truss girders at end parts and manufacturing method thereof
  • Assembly type recycled concrete node with steel bar truss girders at end parts and manufacturing method thereof

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Embodiment Construction

[0022] specific implementation plan

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Prefabricated recycled concrete joints with reinforced truss beams at the end, including column 1, wing end beam 2, prefabricated beam 5, column 1 and wing end beam 2 pre-embedded longitudinal reinforcement 3, stirrup 4, and integrally poured with high-strength recycled concrete, Autoclave curing after vibration to form key nodes, prefabricated beam 5 pre-embeds longitudinal reinforcement 6 and stirrup 4 of prefabricated beam, pours high-strength recycled concrete, autoclaves curing after vibration, wing end beam and prefabricated beam pass through longitudinal reinforcement 3 and prefabricated The longitudinal reinforcement 6 of the beam is overlapped and the steel truss 7 is connected, and a post-casting belt is set at the connection, and the relatively low-strength concrete is used for pouring.

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Abstract

The invention discloses an assembly type recycled concrete node with steel bar truss girders at end parts and a manufacturing method thereof, belonging to the technical field of constructing of prefabricated parts and key nodes and regenerating of concrete. The assembly type recycled concrete node has the advantages of environment friendliness, energy saving and convenience in construction, and is applicable to prefabricated construction, so that the problems that the key nodes of the existing prefabricated parts are poor in seismic performance and severe in seismic hazard, and the defect that the node construction is difficult can be overcome by integrally casting a wing-tip beam and an upright post; and moreover, autoclaved curing prefabrication forming is adopted, so the compactness, the casting quality and the strength of the concrete at the nodes are remarkably improved, thereby realizing an anti-seismic design target of strong nodes and weak rods, as well as connecting the wing-tip beam with the prefabricated beam with the steel bar truss girders by bar splicing. A stirrup strengthening zone is arranged at the connecting part, and the connecting part is set to be a post-cast strip, so that plastic hinges are easily formed under earthquake load action. An ideal failure mechanism with the anti-seismic design concept of strong columns and weak beams, and strong shear and weak bending can be extensively applied to precast construction.

Description

technical field [0001] An assembled recycled concrete node with reinforced truss beam at the end and its method, belonging to the technical field of prefabricated components, key node structures, and recycled concrete Background technique [0002] With the rapid development of the economy, there will be a large number of construction projects in our country every year, and such a large-scale construction will inevitably require a large amount of construction raw materials, followed by a large number of mountain-building stones, sand digging, and the wanton use of limited resources. Environmental damage is serious. At the same time, a large number of old buildings will be demolished, and many buildings that have reached their service life will inevitably be demolished, so there will be a large amount of construction waste. These construction wastes are not only expensive to transport, but also have no place to pile up. The environmental impact is quite large, and the constru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/58E04B1/98
Inventor 曹万林李东华张建伟董红英
Owner BEIJING UNIV OF TECH
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