Embodiments are directed to base connections, structures including base connections, kits for forming the base connections and/or structures, and method of repairing yielded base connections. In an embodiment, a base connection includes a base plate including a top surface and a bottom surface opposite the top surface. The top surface is configured to be adjacent to a terminal end of a column and the bottom surface adjacent to a foundation. The connection also includes one or more anchor rods attached to the base plate. The anchor rods are configured to secure the base plate to the foundation. The connection includes at least one structural fuse configured to be attached to the column and attached to the base plate. The fuse includes a plate with at least one cutout formed therein. The cutout is configured to form one or more yield regions that are configured to preferentially yield.

Method, apparatus, and systems are disclosed for damping the movements of structures undergoing dynamic forces. The disclosed dampers are a new type of steel plate dampers, intended to reduce the cost and improve the performance of structures subject to severe seismic loading. While in these dampers the metal plates undergo plastic deformation as a method of absorbing and dissipating energy, the disclosed designs do not allow the stress and strain in the metal plates to go above a predetermined design value and; therefore, the new dampers have long lives and do not need repair or replacement after a big earthquake or similar events. These dampers may be used for building and non-building structures. In such applications the required damping capacities are relatively high and different scales of sliding force and stroke are required.

Disclosed is an intelligent anti-seismic device for a shallow foundation ancient building, which may include a land, a foundation base and an ancient building body, foundation pit is excavated on a surface of the land, a plurality of piles are arranged on an inner wall of the foundation pit, a foundation side beam is integrally formed by pouring on tops of the plurality of piles, a first earthquake proof mechanism capable of being lifted and lowered is fixed on a top of the foundation side beam, a well-shaped base is integrally formed on the inner wall of the foundation pit, a second earthquake proof mechanism is fixed on a surface of the well-shaped base, a frame is fixed on both tops of the first earthquake proof mechanism and the second earthquake proof mechanism, a grillage beam is integrally formed on an inner wall of the frame.

A variable acceleration curved surface spiral gear transmission mechanism for accelerated oscillator damper damping systems is disclosed. Through the orthogonal orbit planetary gear set moving along the parallel circular arc line guide rail, the concave surface spiral gear and the convex surface spiral gear are meshed at different radii, so as to realize the continuous changing of the speed ratio and changing of the acceleration of the additional mass block. The spiral curve limit guide groove is set on the surface of concave surface spiral gear and convex surface spiral gear, and the changing rate of speed changing ratio is adjusted by designing different spiral curves, and then the acceleration changing rate of additional mass block is controlled.

Embodiments of the present invention relate to a structural frame member which includes a brace member that is used to absorb energy when the structural frame is subjected to loadings such as seismic, wind and gravity loads. The brace member is coupled to a restraining member that increases the buckling capacity of the brace member so that the brace member has approximately the same load axial capacity in compression as in tension. Embodiments of the invention also relate to the design, construction and assembly of the connection of the brace member that couples the brace member to a gusset plate which is coupled to the beam and column in the structural frame.

A seismic protective structure (100) for protecting a board partition (190). The protective structure (100) comprises a first stud (110), a second stud (120), and a wedge (140). The first stud (110) is mounted against a neighbouring wall (150) and the second stud is being positioned spaced from the first stud so that a protective board (130) is mounted on the first stud and the second stud. The structure also comprises a wedge (140) mounted and positioned against the second stud (120) such that the protective board (130) mounted on the first (110) and second stud (120) is pushed at least partly out of the plane of the board partition (190) by the wedge (140) when a given level of seismic stress is appearing.

A composite wall assembly has an auxiliary wall and an inner wall. The auxiliary wall has a hollow space and a first supporting pillar having multiple first through holes. The inner wall is attached to the auxiliary wall and forms a depositing space. The inner wall has a first wall member, a second wall member, and a second supporting pillar having multiple second through holes. The depositing space is formed between the first wall member and the second wall member. The auxiliary wall provides a cushion effect and is not damaged easily in the earthquake for protecting the pipelines in the hollow space. The interior ambient temperature of the building is lowered by the hollow space of the auxiliary wall.

An anti-seismic apparatus for control element drive mechanisms of a nuclear reactor includes: an anti-seismic support plate including a plurality of insertion holes in which the control element drive mechanisms are respectively inserted; and bushings inserted between outer surfaces of the control element drive mechanisms and inner surfaces of the insertion holes. The support plate includes an upper support plate comprising a plurality of first insertion holes, a lower support plate comprising a plurality of second insertion holes at positions corresponding to the first insertion holes, and a connection part connecting the upper support plate and the lower support plate. The connection part includes a support beam vertically extending from an end portion of the lower support plate, an inner flange extending inward from an upper end portion of the support beam, and an outer flange extending outward from the upper end portion of the support beam.

This building comprises a foundation, a main building part that is provided to the foundation and that has a framework structure, and a roof that is provided to the main building part and that has a truss structure. Moreover, a method for constructing the building includes: a first step for forming the foundation; a second step for creating the main building part having a framework structure on the foundation; and a third step for attaching, to the main building part, a roof frame having a pre-assembled truss structure.

The invention relates to a modular plant (1), in particular a modular industrial plant, comprising a plurality of cuboid-shaped plant modules (20, 40, 40a, 40c), which are arranged in two or more layers stacked one above the other. The modules have a support structure having fastening points (24, 24′, 44, 44′), wherein the fastening points are provided for connecting a module to corresponding fastening points of the adjacent modules of a layer located above and/or below thereof. In the horizontal plane, the modules of a layer are connected to the adjacent modules of the layer located above and/or below thereof in a form-fit manner by means of a connection element (64) having the shape of a double cone or of a double conical frustum. At least one traction device (62, 70, 80) having a tension member (62) is provided, by way of which traction device a bottom layer of modules (40a) or a foundation block (6) can be impinged upon with a tensile force along the vertical, with respect to a top layer of modules (40c) such that along the vertical, the modules between said bottom layer (12) and said top layer (11) and the adjacent modules of the layer located above and/or below thereof are positively pressed together at the fastening points and are thus fixed in place.