A fabricated intelligent joint provided with particle damping chambers for energy dissipation includes a core steel frame, an external fully-fabricated steel pipe column, a fully-fabricated annular beam-column connecting assembly, a structural health detection system and particle damping chambers. The core steel frame is located in the external fully-fabricated steel pipe column, is concentric with the external fully-fabricated steel pipe column and comprises a circular hollow steel keel and a plurality of protruding steel plate wings. The external fully-fabricated steel pipe column is formed by splicing a plurality of arc steel pipe column sheets. A space between the external fully-fabricated steel pipe column and the circular hollow steel keel of the core steel frame has the particle damping chambers installed therein and has concrete poured therein. A large quantity of spherical rubber particles is contained in the particle damping chambers.

A reinforcement structure includes compound trusses placed horizontally symmetrically, and each compound truss is constituted by a first truss and a second truss. Each first truss has: a vertical side; a first inclined side extending obliquely downward from an upper end of the vertical side; and a second inclined side connecting between the vertical side and a lower end of the first inclined side. Each second truss shares the first inclined side with the first truss and has: a horizontal side extending horizontally from the upper end of the vertical side; and a second inclined side connecting between a tip end of the horizontal side and the lower end of the first inclined side. Each compound truss is coupled to the construction in a state where the vertical side is along an inner side surface of the construction and the horizontal side is along a ceiling surface of the construction.

A seismic bracing yield fuse includes at least one housing member, and a fuse member housed within or mounted externally to the at least one housing member. The fuse member is configured to undergo ductile yielding in a length dimension upon application of a tensile force along the length dimension of the fuse member, and the at least one housing member is configured to accommodate a change in length of the fuse member resulting from the ductile yielding.

Stiffening apparatus (FIG. 1) A stiffening apparatus (10) for use with a suspension assembly (12) is disclosed. The stiffening apparatus (10) comprises a suspension assembly (68) configured for receiving a first part of the suspension assembly (12). The stiffening apparatus (10) further includes a holder (70) extending transverse to the suspension assembly (68). The holder (70) is configured for receiving a second part of the suspension assembly (12). The holder (70) secures the stiffening apparatus (10) to the suspension assembly (12).

A beam coupler adapted to couple two beams mounted side by side. One coupler comprises a central plate mounted to the first beam, comprising two central-plate side faces in the coupling orientation; and a longitudinal oblong hole providing a passage connecting the two side faces. The coupler also comprises a pair of side plates mounted to the second beam, each comprising an interior face to neighbor the central plate; an exterior face; and a circular side-plate hole providing a passage connecting the interior face with the exterior face. The coupler further comprises compression means applying an inward preload over the plates, comprising a body extending between the exterior faces through the circular and oblong holes. The oblong holes allow displacement of the body of the compression means therein in the longitudinal direction upon a displacement of the plates resulting from a deflection of the beams.

The present invention relates to the technical field of energy dissipation and shock absorption buildings, and particularly relates to a self-recovering energy dissipation support with a shape memory alloy damper. The self-recovering energy dissipation support includes a core shape memory alloy damper and cross-shaped steel columns, wherein the shape memory alloy damper includes two sets of inner and outer sleeves. A sliding groove is arranged between the inner sleeve and the outer sleeve, so that the inner sleeve and the outer sleeve can slide relative to each other along a track. The two sets of inner sleeves are connected through pre-stretched shape memory alloy ribs I. The inner sleeves and the outer sleeves are connected through pre-stretched shape memory alloy ribs II. An outer end plate of the shape memory alloy damper is connected with the cross-shaped steel columns.

An SMA-STF based viscous damper includes a first connector, a piston rod, a piston which is sheathed on the piston rod; a damping cylinder; first and second end covers which are respectively provided at two sides of the damping cylinder; a second connector which is fixedly connected to the second end cover; and first and second SMA springs which are respectively sheathed on the piston rod. The damping cylinder has first and second damping cavities between which the piston is arranged. One end of the piston rod passes through the first end cover and is connected to the first connector, and the other end passes through the second connector. The first and second SMA springs are respectively held in the first and second damping cavities in an elastic state. The first and second damping cavities are respectively filled with the STF.

A buckling-restrained brace includes a telescopic inner restrained member, an outer restrained member sleeved outside the inner restrained member and the L-shaped energy dissipation element between the inner restrained member and the outer restrained member; the inner restrained member includes a first steel square tube and a second steel square tube which are connected by insertion; the L-shaped energy dissipation element includes four L-shaped fuses, and two ends of the four L-shaped fuses are connected to the four right-angle sides of the first steel square tube and the second steel square tube by bolts, respectively; and the inner section of the outer restrained member is square, the outer restrained member covers the L-shaped energy dissipation element, and a certain gap is disposed between the outer restrained member and the L-shaped energy dissipation element. The buckling-restrained brace is simple to disassemble and replace, and the buckling-restrained members are convenient to reuse.

A shearwall is disclosed for use in lightweight or other constructions to transmit lateral shear forces and dissipate energy on the construction. In examples, the shearwall includes a central panel formed of wood, and side plates formed of steel. The side plates may be affixed at lower corners of first and second opposed surfaces of the central panel. Each side plate may include a fastening plate for affixing the side plate to the central panel, and a restraint plate which fits within a reduced area section of the central panel between the first and second surfaces.

An energy absorbing structure includes a base, a loading platform, a pair of side supports, a center support, and a pair of flexible segments. The loading platform is spaced apart from the base. The side supports project from the base toward the loading platform. The center support projects from the loading platform toward the base. The flexible segments extend from the side supports to the center support and connect the side supports to the center support. The flexible segments have straight edges and curved surfaces disposed between the straight edges. The straight edges extend from the side supports to the center support and are oriented at an oblique angle relative to the base. Each of the curved surfaces faces one of the base and the loading platform.