64results about How to "Not easy to lose stability" patented technology

The invention discloses a torsion anti-destabilization device of a buckling-restrained brace, and belongs to the field of building vibration reducing. The torsion anti-destabilization device of the buckling-restrained brace is used for solving the problems that an existing buckling-restrained brace mainly depends on inner core deformation energy consumption resulting in the situation that an innercore is out of action untimely in an earthquake, the replacement and maintenance costs are high, and the self-reset capacity is not achieved. According to the technical main points, the torsion anti-destabilization device is characterized in that the torsion anti-destabilization device comprises torsion springs, limiting clamps and a guiding iron bar, the guiding iron bar penetrates through the energy consumption inner core in the direction perpendicular to the axial direction of the energy consumption inner core and is fixed to the energy consumption inner core, an iron core is exposed on the two sides of the interior of a space, and the torsion springs are connected to the iron core in a covering mode; spring force arms connected with torsion spring bodies are limited by the limiting clamps on the upper side and the lower side of a torsion plane formed when the torsion springs twist, and the torsion anti-destabilization device has the effects that the torsion anti-destabilization device is mounted, and axial load of the energy consumption inner core is borne and dispersed on the spring torsion plane to be borne, so that energy consumption load of the energy consumption inner core is greatly reduced, and the possibility of destabilization of the inner core is reduced, thus the replacing frequency of the inner core is reduced, and the maintenance cost is reduced.

The invention discloses a circumference boot supporting device for a small diameter full section hard rock tunneler. The circumference boot supporting device for the small diameter full section hard rock tunneler is used for supporting all round of surrounding rock when a shield is tunneling, and is provided with a cylindrical shell. At least six supporting boots which can be extended or retracted from the outer wall of the shell are evenly arranged on the perisporium of the shell. A hydraulic jack corresponding to each supporting boot is mounted in the shell. A connecting rod provided with a force increasing effect is arranged between each support boot and a jack piston rod. Both ends of the connecting rod are hinged with the supporting boot and the jack piston rod in a spherical mode. According to the circumference boot supporting device for the small diameter full section hard rock tunneler, a plurality of the supporting boots are arranged on the shell in the circumference direction, the number of the supporting boots is increased, and the force between the supporting boots and the surrounding rock is uniformly dispersed based on reducing the size of the system structure, the total contact area is large and the stability is improved. Each assembly unit is hinged with each other in a spherical mode, the unbalance load effect is small, the jack is not prone to losing stability. By adoption of a connecting rod force increasing mechanism, the pressure between the supporting boots and the surrounding rock is increased, and the goal of improving the frictional resistance of the tunneler and the drivage efficiency is achieved.

The invention discloses a double-layer zigzag large-span tension structure. The tension structure includes a zigzag compression member and a tension rope; the zigzag compression member is formed by connecting several straight rods end to end; The tension ropes include fixed ropes in the horizontal direction and prestressed ropes in the vertical direction; the folded line-shaped compression members connected end to end are arranged in an equidistant staggered manner in the same space plane, and the folded line-shaped compression members Each hole is connected with the adjacent holes in the horizontal direction by a fixed rope, and each hole is connected with the adjacent holes in the vertical direction with a prestressed rope. The present invention has simple structure, reasonable stress and light weight; the prestress control is convenient and can be completed by adjusting the ropes in the vertical direction; the span extension of the structure can be completed by increasing the number of straight rods on the broken line; the loading and unloading is convenient, It is a green building that can be quickly installed and dismantled, and the folded compression members can be folded or disassembled for transportation and storage.

The invention discloses a three-dimensional vibration isolation / seismic support for horizontal bidirectional and vertical deformation decoupling, including a horizontal vibration isolation support, a vertical vibration isolation support and a deformation decoupling device, the horizontal vibration isolation support and The vertical vibration isolation support is arranged in series in the vertical direction. The vertical vibration isolation support includes an upper positioning steel plate, a lower positioning steel plate and a vertical vibration isolation unit. The deformation decoupling device can realize three-dimensional horizontal and vertical deformation. Decoupling, the deformation decoupling device is composed of horizontal limit corner columns, horizontal shear steel plates and vertical deformation gaps. The present invention can realize the three-dimensional decoupling of the horizontal deformation of the horizontal vibration isolation bearing and the vertical deformation of the vertical vibration isolation bearing, ensuring that the horizontal deformation of the three-dimensional vibration isolation / seismic isolation bearing only occurs in the horizontal vibration isolation bearing , The vertical deformation only occurs in the vertical vibration isolation bearing, which effectively improves the vibration isolation (seismic) effect of the three-dimensional vibration isolation (seismic) bearing.

The invention provides a composite damping vibration isolator. The composite damping vibration isolator is high in bearing capability and damping. The composite damping vibration isolator comprises an upper connecting piece and a lower connecting piece. The composite damping vibration isolator is characterized in that the two sides of the upper connecting piece are connected with the two sides of the lower connecting piece through damping assemblies; the damping assemblies comprise stacked panels, and rubber layers are arranged between the adjacent panels; and the panels are integrally in a bent shape and have elasticity.