Steel beam and steel column unilateral connecting joint capable of being repaired after earthquake and steel structure building
A technology for connecting nodes and steel beams and columns, which is applied in the direction of construction and building construction, can solve the problems of high assembly cost, easy cracking of welds, secondary damage, etc., to reduce repair costs, avoid fracture damage, and prolong service life Effect
Active Publication Date: 2017-11-17
SHANDONG UNIV
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AI Technical Summary
Problems solved by technology
Although this joint is widely used, it has the following disadvantages: there are on-site construction welds, many construction procedures, and the quality of welding is difficult to control; there is serious stress concentration at the weld, and the weld is easy to crack under earthquake load
Moreover, the number of high-strength bolts required for full-bolt connection nodes is large, and the assembly cost is high
[0004] The post-earthquake repair of the above-mentioned bolted and welded joints and full bolted joints is extremely cumbersome, and it will cause secondary damage to the originally fragile structure after the earthquake
Method used
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example 1
[0051] like figure 2 and Figure 4 As shown, the end of the first connecting plate 31 adopts an enlarged section form, the weakened area 33 in the middle of the first connecting plate 31 adopts a mixed cutting method of circular arc and straight line, and the third bolt holes 311 are arranged side by side, wherein Figure 4 (a) is a T-shaped core plate, Figure 4 (b) is an L-shaped core plate.
example 2
[0053] like Figure 5 As shown, the end of the first connecting plate 31 adopts a non-enlarged cross-sectional form, the weakened area 33 in the middle of the first connecting plate 31 is cut in a mixed manner of circular arc and straight line, and the third bolt holes 311 are arranged side by side.
example 3
[0055] like Image 6 As shown, the end of the first connecting plate 31 adopts a non-enlarged section form, the weakened area 33 in the middle of the first connecting plate 31 adopts a straight line cutting method, and the third bolt holes 311 are arranged side by side.
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Abstract
The invention discloses a steel beam and steel column unilateral connecting joint capable of being repaired after an earthquake and a steel structure building and belongs to the field of building steel structures. The steel beam and steel column unilateral connecting joint capable of being repaired after the earthquake comprises a steel beam and a steel column. Web connecting pieces and a flange connecting piece are arranged at the junction of the steel beam and the steel column. The web connecting pieces are connected with a web of the steel beam and one of flanges of the steel column. The flange connecting piece is connected with a lower flange of the steel beam and one of the flanges of the steel column simultaneously. A weakened area is arranged in the middle of the flange connecting piece. Mounting is convenient, anti-seismic performance is excellent, and the ducility and energy dissipation capability of a steel frame structure can be significantly improved; a plastic hinge formed by rotating of the joint is controllable in position; and the steel beam and the steel column are not damaged after the earthquake, and the web connecting pieces and the flange connecting piece can be rapidly replaced and repaired under the premise that an original structure (such as a floor) is not damaged.
Description
technical field [0001] The invention relates to the field of building steel structures, in particular to a post-earthquake repairable steel beam-column unilateral connection node and a steel structure building. Background technique [0002] The most commonly used beam-to-column joints in steel structure houses are bolted and welded hybrid joints. It connects the steel beam flange and the steel column flange with full penetration welds, and the steel beam web and the shear plate welded on the steel column flange are connected with friction type high-strength bolts. Although this joint is widely used, it has the following disadvantages: there are on-site construction welds, there are many construction procedures, and the quality of welding is difficult to control; there is serious stress concentration at the weld, and the weld is easy to crack under earthquake load. These deficiencies greatly reduce the ductility and energy dissipation capacity of the node, and the earthquake...
Claims
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IPC IPC(8): E04B1/24E04B1/58
CPCE04B1/2403E04B2001/2418E04B2001/2406E04B2001/2415
Inventor 曲冰刘翔侯和涛邱灿星侯全胜李永超
Owner SHANDONG UNIV