Rigid connection joint of assembly type high-ductility high-strength steel beam column
A rigid connection and high ductility technology, applied in protective buildings/shelters, building components, earthquake-proof and other directions, can solve the problems of complex structural forms and ductility requirements of high-strength steel structures, achieve high bearing capacity, improve construction efficiency, Good seismic performance
Pending Publication Date: 2020-04-03
XIAN UNIV OF TECH
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[0004] The purpose of the present invention is to provide an assembled high-ductility high-strength steel beam-column rigid connection node, which solves the ductility requirements of high-strength steel structures and the complex structure of existing steel structure beam-column connection nodes
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[0019] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0020] An assembled high-ductility high-strength steel beam-column rigid connection node structure of the present invention is as follows: figure 1 As shown, it includes H-shaped section column 1, cantilever beam section 10 and intermediate beam section 11, H-shaped section column 1 and cantilever beam section 10 are connected, between the upper and lower flanges of cantilever beam section 10 and the upper and lower flanges of intermediate beam section 11 Connect with tapered weakened cover plate 7.
[0021] The cantilever beam section 10 and the middle beam section 11 are I-beams with the same structure.
[0022] The flange on one side of the H-shaped cross-section column 1 is welded with two horizontal beam end flange reinforcement plates 3 and two vertical shear plates 4, and the distance between the two beam end flange reinforcement plat...
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The invention discloses a rigid connection joint of an assembly type high-ductility high-strength steel beam column. The rigid connection joint comprises an H-shaped section column, a cantilever beamsection and a middle beam section, wherein the H-shaped section column is connected with the cantilever beam section, and the upper flange and the lower flange of the cantilever beam section are connected with the upper flange and the lower flange of the middle beam section through conical weakening type cover plates. According to the rigid connection joint, an H-shaped steel column with the cantilever beam section can be machined and manufactured in a factory, the cantilever beam section and the column flanges are welded through flange reinforcing plates to form a prefabricated component, andthen the prefabricated component is connected with the middle beam section through full bolts, so that on one hand, the weld joint quality can be effectively controlled; and on the other hand, the construction efficiency can be greatly improved. Compared with a traditional weakening type joint, the plastic deformation of a steel beam is mainly concentrated on the conical weakening type cover plates and angle steel shear connectors, so that the damage control idea is facilitated, the plastic deformation of the joint is controlled in a specific replaceable assembly, main body high-strength steel components such as a beam column and the like keep elastic in an earthquake, and only the damaged assembly needs to be replaced in the post-earthquake repair process.
Description
technical field [0001] The invention belongs to the technical field of beam-column joints of an assembled steel structure system, and in particular relates to an assembled high-ductility and high-strength steel beam-column rigid connection joint. Background technique [0002] During the 1994 Northridge Earthquake in the United States and the 1995 Hanshin Earthquake in Japan, steel structures that were originally thought to have high ductility and good seismic performance did not show the expected earthquake resistance. In the two earthquakes, brittle fractures occurred in the beam-column rigid joints of a large number of steel structures, which directly led to serious damage or even collapse of the structures, resulting in huge casualties and property losses. The 5.12 Wenchuan earthquake in my country alone killed about 69,000 people, injured more than 370,000 people, and caused a direct economic loss of 845.1 billion yuan. Therefore, strengthening the adoption of earthquak...
Claims
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IPC IPC(8): E04B1/24E04B1/58E04B1/98E04H9/02
CPCE04B1/2403E04B1/98E04H9/021E04H9/024E04B2001/2406E04B2001/2415E04B2001/2418E04B2001/2421
Inventor 梁刚刘云贺辛振科
Owner XIAN UNIV OF TECH