Construction method for haunching bi-directional tension prestressed concrete complex beam-column joints

A technology of beam-column joints and construction methods, which is applied in the direction of architecture and building construction, can solve the problems of difficult construction quality guarantee, intricate distribution, and complicated construction technology in the core area of ​​beam-column joints, so as to ensure that the joint domain The effect of bearing capacity, speeding up the construction progress and ensuring the quality of the project

Inactive Publication Date: 2018-07-31
BUILDING & MOUNTING ENG CO LTD NO 12 BUREAU MINIST OF RAILWAYS +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the construction of super large space buildings such as railway stations, gymnasiums, airport terminals, exhibition centers, teaching buildings, museums, libraries, etc. with cast-in-place prestressed concrete technology, especially when the construction site has a large area, complex and diverse structures, and a large number of components And in the prestressed concrete project with two-way intersecting arrangement of prestressed beams, the steel bars

Method used

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  • Construction method for haunching bi-directional tension prestressed concrete complex beam-column joints
  • Construction method for haunching bi-directional tension prestressed concrete complex beam-column joints
  • Construction method for haunching bi-directional tension prestressed concrete complex beam-column joints

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Embodiment 1

[0036] This embodiment discloses a construction method for complex beam-column joints of bidirectionally tensioned prestressed concrete with haunches, see figure 1 , including the following steps:

[0037] 1) Deepen the design of the frame beam, and determine the form of beam side addition and the sagittal shape of the prestressed tendons in the frame beam. see figure 2 , in this embodiment, the beam-column joint includes a column 6 and a frame beam I1 and a frame beam II3 connected to the column 6 . The frame beam I1 and the frame beam II3 are cross-connected on the node area in a cross shape. The frame beam II3 is horizontally haunched from the column edge of the beam-column joint to form the haunch I2. The axillation forms of the axillation I2 and the axillation II7 are both horizontal rectangular axillations. Tension anchors are buried at the ends of the added haunches I2 and II7. see image 3 , the prestressed tendon I4 is arranged in the frame beam I1, and the pre...

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Abstract

The invention provides a construction method for haunching bi-directional tension prestressed concrete complex beam-column joints. The construction method includes the steps of deepening design, three-dimensional modeling, joint non-prestressed steel bars binding, joint corrugated pipe arrangement, concealed engineering inspection and acceptance, concrete pouring and tamping and maintenance, performing of a prestressed tendon tensioning method, performing of tensioning sequence, end portion sealing anchorage and the like. The construction method for the haunching bi-directional tension prestressed concrete complex beam-column joints accelerates the construction progress, saves the construction period, and ensures the engineering quality of the beam-column joints and the bearing capacity ofjoint areas.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a complex beam-column joint of bidirectionally tensioned prestressed concrete with haunches. Background technique [0002] In recent years, with the continuous improvement of my country's economic level and the continuous acceleration of urbanization, construction projects have increased day by day. Prestressed concrete structures have the advantages of small cross-section, high rigidity, good crack resistance and durability, so they are widely used in construction projects. Reasonable and effective prestressing technology is used to effectively control the cracks of components, so that the frame has greater rigidity and bearing capacity, and can give full play to the various properties of materials, so that materials can be fully utilized and improve the economy of such projects Benefits, improve the durability and reliability of prestressed concrete structures. ...

Claims

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Application Information

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IPC IPC(8): E04B1/20E04B1/21E04B1/22E04B1/58
CPCE04B1/20E04B1/21E04B1/22E04B1/58
Inventor 刘江河向成明
Owner BUILDING & MOUNTING ENG CO LTD NO 12 BUREAU MINIST OF RAILWAYS
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