Double-rectangular pipe restraint H-shaped section assembling type bending prevention energy consuming support with ribs

Abstract

The invention relates to a double-rectangular pipe restraint H-shaped section assembling type bending prevention energy consuming support with ribs, which belongs to the technical field of structural engineering. The double-rectangular pipe restraint H-shaped section assembling type bending prevention energy consuming support with ribs is characterized by comprising two cold-bending thin-wall type steel rectangular pipes with ribs and hot-rolling H-shaped steel, wherein the two cold-bending thin-wall type steel rectangular pipes are pressed on a web plate of the hot-rolling H-shaped steel by a long screw rod connecting element to form an peripheral restraint component and form a restraint mechanism on the H-shaped steel of a kernel; the position of the hot-rolling H-shaped steel, which ispenetrated by the long screw rod connecting element, is provided with a circular hole, and the non-midspan positions of the two cold-bending thin-wall type steel rectangular pipes, which are penetrated by the long screw rod connecting element, are provided with elliptical holes, and the midspan positions are provided with circular holes; and two groove-shaped stiffening ribs are symmetrically distributed on both opened sides of the two cold-bending thin wall type steel rectangular pipes . The invention can provide side force resistance for a multi-high-rise building structure and achieve the aim of total section yielding under the action of great vibration, thereby effectively consuming energy. The rectangular pipes with any section size are matched with the hot-rolling H-shaped steel by the groove-shaped stiffening ribs, and the material acquiring ranges of the rectangular pipes and the hot-rolling H-shaped steel are enlarged.

Description

technical field [0001] The invention relates to a novel anti-buckling energy dissipation support, which belongs to the technical field of structural engineering. technical background [0002] The anti-buckling energy-dissipating brace is a new type of lateral force-resistant member, which has two functions of "support" and "energy dissipation", and is a kind of energy-dissipating and shock-absorbing member that performs well under earthquake action. Under the action of small earthquakes, the anti-buckling energy-dissipating braces maintain elasticity, thereby providing sufficient rigidity for the main structure to ensure that the lateral movement of the main frame meets the design requirements; under the action of moderate and large earthquakes, the anti-buckling energy-dissipating braces enter yield, The seismic energy is dissipated through the yielding of its core section, thereby protecting the safety of the main frame and effectively reducing the seismic response. [00...

AI Technical Summary

Problems solved by technology

However, for this kind of anti-buckling energy-dissipating support composed of four hot-rolled groove sections, since the inner core pressure-bearing member adopts a straight steel plate, the load it bears is limited, and it is only suitable for those with low requirements on the bearing capacity of the support. structure

And because the two trough members arranged on the outside of the inner core plate open outwards, their moments of inertia around the vertical axis are small, so the confinement efficiency cannot be fully utilized

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