Buckling constraint type steel-beam-and-column end-plate connection joint and steel structure building
A technology of buckling constraints and connecting nodes, which is applied in the direction of protective buildings/shelters, buildings, building types, etc., can solve the problem that connecting bolts are susceptible to tensile damage, reduce the number of connecting bolts, improve ductility and energy dissipation capacity Effect
Active Publication Date: 2016-08-10
SHANDONG UNIV
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Problems solved by technology
However, due to the prying force, the connecting bolts between the connecting piece (T-shaped or L-shaped) and the steel column flange are easily damaged by tension, and the connecting piece is separated from the column flange before the steel beam is bent to produce a plastic hinge
Method used
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example 1
[0044] Example 1: if figure 2 As shown, the end of the flange connecting plate 31 adopts an enlarged cross-section, the weakened area 33 in the middle of the flange connecting plate 31 adopts a mixed cutting method of circular arc and straight line, and the first group of bolt holes 312 are staggered.
example 2
[0045] Example 2: if image 3 As shown, the end of the flange connecting plate 31 adopts a non-expanded section form, the weakened area 33 in the middle of the flange connecting plate 31 adopts a mixed arc and straight line cutting, and the first group of bolt holes 312 are arranged side by side.
example 3
[0046] Example 3: if Figure 4 As shown, the end of the flange connecting plate 31 adopts a non-expanded section form, the weakened area 33 in the middle of the flange connecting plate 31 adopts a straight line cutting method, and the first group of bolt holes 312 are arranged side by side.
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The invention discloses a buckling constraint type steel-beam-and-column end-plate connection joint and a steel structure building, and belongs to the field of a building steel structure. The buckling constraint type steel-beam-and-column end-plate connection joint comprises a steel beam and a steel column; an end connecting piece is arranged at a joint of the steel beam and the steel column; the end connecting piece comprises a pair of horizontally arranged flange connecting plates and end plates arranged at the tail ends of the flange connecting plates; the free ends of the flange connecting plates are used for being connected with upper and lower flanges of the steel beam; both ends of the end plates are used for being connected with flanges of the steel column; the middle parts of the flange connecting plates are weakened regions. According to the buckling constraint type steel-beam-and-column end-plate connection joint and the steel structure building which are disclosed by the invention, seismic performance is superior, and ductility and the energy consumption ability of a steel frame structure can be obviously improved; plastic hinges are moved outside, so that appearance of the plastic hinges at the welded positions at the end parts of the steel beam is avoided; after an earthquake, the steel beam and the steel column are not damaged, and can be reused only by replacing or repairing the end connecting pieces; moreover, the buckling constraint type steel-beam-and-column end-plate connection joint is convenient to mount.
Description
technical field [0001] The invention relates to the field of building steel structures, in particular to a buckling-constrained steel beam-column end-plate connection node and a steel structure building. Background technique [0002] In multi- and high-rise prefabricated steel structure residences, how to effectively and quickly connect steel beams and columns has become an important research topic. Because the steel beam-column connection node is the key to affect the mechanical properties of steel structure houses. It is simultaneously subjected to axial force, bending moment and shear force, such as Figure 9 As shown, N is the axial force, M is the bending moment, and V is the shear force. The force transmission mechanism is complex, so it is the most important and difficult point in structural design. [0003] At present, the most commonly used beam-to-column joints in prefabricated steel structure houses are end-plate joints. The end plate connection node is to weld ...
Claims
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IPC IPC(8): E04B1/24E04B1/58E04B1/98E04H9/02
CPCE04B1/2403E04B2001/2415E04B2001/2418E04H9/021
Inventor 侯和涛刘翔曲冰邱灿星罗建良刘晓芳
Owner SHANDONG UNIV
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