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A replaceable partially filled composite structure frame assembly node and its preparation method

A technology of frame assembly and combined structure, which is applied to building components, building structures, protective buildings/shelters, etc., can solve the problems of reduced out-of-plane stiffness of steel beams, out-of-plane buckling of steel beams, and reduced fatigue life, etc. Achieve the effect of solving out-of-plane buckling, good local buckling, convenient connection and replacement

Inactive Publication Date: 2020-12-22
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this structural form will also easily cause buckling of the web and flange at the weakened part, and the residual deformation will be large in the later stage, and the opening of the hole will reduce the low-cycle fatigue life of the weakened part, reduce the out-of-plane stiffness of the steel beam, and easily cause out-of-plane buckling of the steel beam

Method used

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  • A replaceable partially filled composite structure frame assembly node and its preparation method
  • A replaceable partially filled composite structure frame assembly node and its preparation method
  • A replaceable partially filled composite structure frame assembly node and its preparation method

Examples

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Effect test

Embodiment 1

[0047] see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , the present invention provides a replaceable energy-dissipating beam section partly filled combined structure frame assembled node, the assembled node is mainly composed of partly filled column 1 and partly filled beam 5, wherein the partly filled beam 5 is divided into are the first partially filled beam segment, the second partially filled beam segment and the partially filled energy dissipation beam segment. The first partially filled beam section includes a first H-shaped steel section with an end plate 4 at one end, and the other end of the first H-shaped steel section has a sealing plate ( figure 2 middle left side), and there are through mounting holes for tension bolts on the flanges on both sides (the mounting holes are arranged symmetrically along the web 14), the flanges on both sides of the first H-shaped steel section and the sealing plate ( figure 2 Middle left...

Embodiment 2

[0060] see figure 1 , Figure 8 , Figure 9 , Figure 10 and Figure 11 , the present invention provides a replaceable beam structure partially filled composite structure frame assembled node, the assembled node is mainly composed of partially filled column 1 and partially filled beam 5, partially filled column 1 and partially filled beam 5. It is connected by the tension bolts 3 located in the node area in the partially filled column 1. Both sides of the H-shaped steel web of the partially filled column 1 are poured with concrete 8, and the tension bolts 3 are symmetrically arranged on the H section of the partially filled column 1. Both sides of the section steel web run through the filled concrete and the flanges on both sides, that is, the partially filled column 1 can be connected to two partially filled beams 5 on both sides of it at the same time; the partially filled beam 5 is connected to the partially filled column 1 An end plate 4 is welded to facilitate the con...

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Abstract

The invention provides a replaceable partially-filled composite structure frame assembling node and a preparation method thereof. The assembling node includes a partially filled column and a partiallyfilled beam that are connected by split bolts. On the basis of the partially filled beam segmentation design, local concentration of plastic deformation beyond the node area is realized, so that a problem that the partially filled node has brittle failure at a node welding joint area is solved and the rapid recovery after the disaster is realized. Meanwhile, because of the split bolts, prestressing forces are applied equivalently, so that the crack-resistant capability of the concrete is enhanced and the connection problem of the partially filled composite structural frame is solved. The constriction becomes convenient and prefabrication is realized. Besides, with ECC filling, the anti-seismic performance of the partially filled node is improved and the anti-seismic performance of the overall structure is improved.

Description

technical field [0001] The invention belongs to the field of civil engineering, and relates to the design and construction of an assembled node of a replaceable partially filled composite structure frame. Background technique [0002] Partially encased composite structures (PECS), referred to as "partially filled composite structures", is filled with concrete and other materials between the flanges of I-beams or H-beams and other components, and in the concrete Set the combined structure of longitudinal reinforcement, stirrup or flange link, also known as partially wrapped, partially wrapped structure. The bearing capacity, stiffness and ductility of partially filled composite structures are superior to pure steel structures or reinforced concrete structures. Compared with steel-concrete composite structures, they have the advantages of high degree of prefabricated components, convenient node connection, and less formwork consumption. Under the development trend of construc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/58E04H9/02E04B1/98
CPCE04B1/58E04H9/021
Inventor 余吉鹏周天华白亮
Owner CHANGAN UNIV
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