Fabricated self-resetting beam column joint and construction method thereof
A beam-column joint and self-resetting technology, which is applied in the direction of protective buildings/shelters, building types, buildings, etc., can solve the problems of increasing structural acceleration response, stress relaxation of prestressed tendons, weak energy dissipation characteristics, etc., and achieve improved Self-resetting ability, overall rigidity guarantee, and the effect of improving brittle failure problems
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Embodiment 1
[0032] see figure 1 with figure 2 , this embodiment discloses an assembled self-resetting beam-column node, including a column 1 , an I-shaped steel beam 2 , a connector 5 , an SMA cable 10 and an SMA bolt 11 .
[0033] The column 1 is an I-shaped steel column. A stiffener 101 is welded at the web of the column 1 .
[0034] see image 3 with Figure 4 , the connecting member 5 includes a riser 502 and an L-shaped plate arranged on one side of the riser 502 . The long limb of the L-shaped plate is a wedge-shaped plate 501 , and the short limb is an outwardly extending flange 503 . The surface of the wedge plate 501 includes a straight surface and a wedge surface. A wedge angle is formed between the straight surface and the wedge-shaped surface. The additional overhanging flange 503 is a straight plate. Said additional overhanging flange 503 is arranged parallel to the riser 502 . The additional overhanging flange 503 is arranged on one side of the straight surface of ...
Embodiment 2
[0042] This embodiment discloses a construction method for the assembled self-resetting beam-column joint described in Embodiment 1, which includes the following steps:
[0043] 1) Standardized production of columns 1, I-shaped steel beams 2, connectors 5, SMA cables 10 and SMA bolts 11 in the factory. Waist-shaped bolt holes are provided at the ends of the I-shaped steel beam 2 flanges. An additional connecting plate 204 is welded on the lower surface of the upper flange 202 of the I-shaped steel beam 2 and the upper surface of the lower flange 203 .
[0044] 2) Screw the screw rod of SMA bolt 11 through the waist bolt hole of the flange of I-shaped steel beam 2 and the circular bolt hole of corresponding wedge plate 501 and then screw into the steel spacer 13, and connect the I-shaped steel beam 2 and the wedge Part 5 is connected and compressed.
[0045] 3) Use the SMA cable 10 to connect the additional overhanging flange plate 503 with the additional connecting plate 204...
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