A Modularized Recoverable Buckling Constrained Fabricated Beam-Column Joint
A technology of modular design and recovery function, which is applied in the direction of protective buildings/shelters, building types, buildings, etc., which can solve problems such as long construction time, damage to main beams and columns, and numerous assembly processes, so as to improve construction accuracy and quality, protection of life safety, and the effect of stimulating carrying potential
Active Publication Date: 2021-05-28
BEIJING UNIV OF TECH
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Problems solved by technology
[0003] At present, when the common steel structure beam-column joints are damaged by earthquakes, the plastic hinge is relatively close to the column surface, which is likely to cause shear buckling of the column web in the joint domain, local buckling of the column flange, and yielding of the beam end, resulting in varying degrees of damage to the main beam-column , cannot be replaced and repaired after the earthquake, nor can it be quickly assembled. The construction takes a long time and is not suitable for prefabricated buildings.
At the same time, the existing joints during bolt welding can only achieve the purpose of moving the plastic hinge at the beam end by adding cover plates, stiffeners or side plates and other beam end strengthening measures. Stability factors will make it difficult to guarantee the quality of welding
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[0023]By the followingFigure 1 ~ 7 Detailed explanation of the embodiments of this patent.
[0024]Such asFigure 1 ~ 7 As shown, a modular design recoverable function buckling constraint mounting beam column combination node includes the following components:
[0025]1 - round steel pipe column with flanged trays;
[0026]2 - slot beam;
[0027]3 - Cantilever beam assembly (which consists of two mutually perpendicular groove cantilever beams, 1 / 4 short round steel pipe column, and up and down 1 / 4 flanges);
[0028]4 - slot web connecting parts;
[0029]5 - flange connection plate;
[0030]6 - padding;
[0031]7 - Tie;
[0032]8 - Floor.
[0033]Such asFigure 1-7As shown, a modular design recoverable function buckling constraint assembled beam column combination node, including two round steel pipes 1 and 4 modular combination floors of the flanged disc; the modular combination floor 2 slot beams 2, 1 cantilever beam assembly 3, 4 built-in flange connecting plates 5, 2 groove type web connector 4, several pad 6, ...
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The invention relates to a modular design recoverable function buckling constraint assembled beam-column composite node, which belongs to the field of structural engineering. The joint is composed of a circular steel pipe column with a flange, an ordinary channel beam, a cantilever beam assembly, a channel web connector, a flange connection cover plate, a backing plate, high-strength bolts, studs and a floor slab. On the premise of ensuring the modular construction of the assembled steel structure, the present invention applies the concept of buckling restraint to the field of beam-column joints. Through the setting of the built-in flange connection cover plate and the groove-shaped web connector, the wing after compression deformation The flange connection cover plate provides support force, and the buckling amplitude of the flange cover plate is effectively controlled to avoid premature instability of the steel member and increase its stability. In addition, the present invention transfers the plastic hinge to the flange connection cover plate through measures such as the unequal thickness of the flange of the cantilever beam assembly and the ordinary beam, the connection of the single cover plate of the flange, and the weakening of the dog bone. After the earthquake, only the connecting parts need to be replaced to realize the structure function recovery.
Description
Technical field[0001]This patent relates to a modular design recoverable function buckling constraint assembled beam column combination node device, which belongs to the technical field of structural engineering.Background technique[0002]The industrial assembly steel structure is an inevitable trend in the development of high-rise steel structures in the future. It is the only way to achieve building industrialization in my country. In September 2016, the State Council made a diploma to develop assembled buildings, and the assembly building accounted for 30% of the assembly building around 10 years. Assembled buildings are major changes in construction methods, which is an important initiative to promote structural reform and new urbanization. It is fully in line with the "applicable, efficient, coordinated and development" of green buildings. Building assembly, can standardize all components, factory unified specifications, on-site bolts precision assembly, avoid consumption of bui...
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IPC IPC(8): E04B1/24E04B1/58E04H9/02E04B1/98
CPCE04B1/24E04B1/2403E04B2001/2406E04B2001/2466E04H9/021E04H9/024
Inventor 姜子钦杨晓峰牛子尧康轶涛申存杰
Owner BEIJING UNIV OF TECH