65results about How to "Reduce wet work workload" patented technology

The invention discloses a casing buckling induction brace with a mixed sunken type induction unit. The casing buckling induction brace comprises end restrained sections, a buckling induction section, an inner casing and an outer casing. The buckling induction section is clamped between the inner casing and the outer casing. The inner casing and the outer casing are each connected with one end restrained section. The buckling induction section comprises at least one mixed sunken type induction unit in the axial direction of the brace. According to each single mixed sunken type induction unit, m same mixed sunken type subunits are arranged sequentially in the circumferential direction to form a space body with the section of an m-edge shape. Each mixed sunken type subunit is a space body formed by folding two trapezoidal plates and eight triangular plates which are located in the same plane. The casing buckling induction brace maintains elasticity under the action of a small earthquake, the buckling induction section enters a yield stage under the action of a medium earthquake or a large earthquake, and the good hysteretic energy consumption performance of the casing buckling induction brace can also achieves an effect of a damper.

The invention discloses a buckling induction support with pineapple type induction units at ends. The buckling induction support comprises constraint sections, energy dissipation sections and a support straight section, wherein the energy dissipation sections are arranged at two ends of the support straight section, each energy dissipation section comprises at least one oblique pineapple type induction unit arranged along the axial direction of the support, each oblique pineapple type induction unit is a spatial body is formed by m oblique pineapple type subunits sequentially arranged along an oblique direction, and the section of the spatial body is a spiral line; each oblique pineapple type subunit is a spatial body formed by folding six isosceles triangle boards in the same plane. The buckling induction support has the advantages that the buckling induction support keeps elasticity under a small seism effect; the buckling induction support enters a yield stage under a middle seism effect or a large seism effect, and the good hysteretic energy dissipation performance of the buckling induction support allows the buckling induction support to have the effect of a damper; compared with a traditional buckling restrained brace, the buckling induction support is capable of reducing the workload of on-site construction, capable of saving energy and environmentally friendly.

The invention discloses a buckling induction brace with a circumferential-direction trapezoidal induction unit at the end. The buckling induction brace comprises a restrained section and energy consumption sections and further comprises a brace straight section. The energy consumption sections are arranged at the two ends of the brace straight section. Each energy consumption section comprises at least one circumferential-direction trapezoidal induction unit in the axial direction of the buckling induction brace. According to the circumferential-direction trapezoidal induction unit, m circumferential-direction trapezoidal subunits are arranged in the circumferential direction sequentially to form a space body with the section of a polygon. Each circumferential-direction trapezoidal subunit is a space body formed by folding four isosceles-trapezoid plates located in the same plane in a two-to-two collineation mode. The buckling induction brace maintains elasticity under the action of a small earthquake and enters a yield stage under the action of a medium earthquake or a large earthquake, and the good hysteretic energy consumption performance of the buckling induction brace can also achieves an effect of a damper. Compared with a traditional buckling restrained brace, the buckling induction brace reduces the workload of site construction work, and energy conservation and environment protection are achieved.

The invention discloses a concrete frame seismic reinforcement structure applying expanded metal. A to-be-reinforced concrete frame is formed by to-be-reinforced frame columns and to-be-reinforced frame beams. The expanded metal is connected between every two adjacent to-be-reinforced frame columns and every two adjacent to-be-reinforced frame beams on the same vertical plane respectively, constraint external members are fixed between the expanded metal and the to-be-reinforced concrete frame through connecting parts, steel with the yield strength smaller than that of the constraint external members is adopted in the expanded metal, and the connecting parts comprise high-strength bolts for connecting the expanded metal and the constraint external members and chemical bolts for connecting the constraint external members and the to-be-reinforced concrete frame. The constraint external members can improve the ductility of the to-be-reinforced frame columns. The expanded metal can improve the bearing capacity and energy-dissipating capacity of the to-be-reinforced structure. The concrete frame seismic reinforcement structure is used for structural reinforcement, the wet construction workload is small, the constraint external members can be prefabricated in a factory, only installation of the chemical bolts and the high-strength bolts needs to be completed on site, the industrial degree is high, construction is convenient and rapid, and the influences on normal use of a building are reduced.

The invention discloses a bushing buckling induction support with variable-length pineapple-shaped induction units. Composed along the axial direction of the support, the end faces of the variable-length pineapple-shaped induction units located on both sides of the buckling induction section are planes truncated by a cross-section perpendicular to the axial direction and passing through the apex; the single variable-length pineapple-shaped The inducing unit is composed of m identical variable-length pineapple-shaped subunits arranged in turn along the ring direction to form a space body with a polygonal cross-section. The present invention adopts the casing buckling-inducing support with pineapple-shaped induction units of variable length. Under the action of small earthquakes, the buckling-inducing support maintains elasticity. The energy recovery performance can also act as a damper.

The invention discloses a buckling control support with the end provided with a staggered pyramid type energy consumption unit. The buckling control support is characterized by being composed of an end restraint section, energy consumption sections and a supporting flat section. The two ends of the buckling control support are connected with beams, column components or nodes through bolts to form a whole, so as to achieve the objective of improving lateral stiffness resistance of the components. The buckling control support with the end provided with the staggered pyramid type energy consumption unit maintains elasticity under the effect of a small earthquake; when the effect of a medium earthquake or a large earthquake occurs, the buckling control support enters a yielding phase, and the effect of a damper can be achieved due to the good hysteresis energy consumption performance of the buckling control support. Compared with a conventional buckling restraint support, according to the buckling control support, the processes of adding a sleeve outside a core energy consumption component in the conventional manufacturing process and performing grouting and the like are avoided in manufacturing process, and the buckling control support is convenient to manufacture. The support can be prefabricated in a factory, the component quality is guaranteed, the site construction operation workload is reduced, and the buckling control support saves energy and is environmentally friendly.

The invention discloses a buckling inducing brace with the ends provided with annular screw-type induction units. The buckling inducing brace with the ends provided with the annular screw-type induction units comprises retraining sections and energy dissipation sections and further comprises a brace straight section. The energy dissipation sections are arranged at the two ends of the brace straight section. Each energy dissipation section is composed of at least one annular screw-type induction unit in the axial direction of the brace. Each annular screw-type induction unit is a space body with a regular polygon section, wherein the space body is formed in the manner that m annular screw-type induction subunits are annularly and sequentially arranged. Each annular screw-type induction subunit is a space body which is formed by two collinear triangular plates through folding. The buckling inducing brace with the ends provided with the annular screw-type induction units keeps elasticity under the action of a small earthquake; and under the action of an intermediate earthquake or a large earthquake, the buckling inducing brace enters a yielding stage, and the buckling inducing brace can achieve the effect of a damper through the good hysteretic energy dissipation capacity. Compared with a traditional buckling restraining brace, the buckling inducing brace with the ends provided with the annular screw-type induction units lightens the on-site construction workload, saves energy and is environmentally friendly.

The invention discloses a prefabricated concrete wallboard and a wallboard structural system constructed through prefabricated concrete wallboards and provided with a hidden frame. A reinforcing mesh in the wallboard comprises a hidden supporting reinforcing mesh body. The hidden frame of the structural system constructed through the wallboards is formed by casting concrete at joints of a floor and the wallboards in place, and an inner frame of a whole building is formed. Prefabricated concrete hollow walls, boards and beams are connected into a whole, the space structural system with good overall work performance and lateral load resisting performance is formed, effective connection of stressed complex positions can be guaranteed, and the problem that the overall performance and the anti-seismic property of a prefabricated building are poor can be solved. Vertical prestress is applied to the walls of the high-rise building in batches to enhance the stress performance of the wall structure, hidden supports are arranged in the prefabricated walls to form a hidden frame space system with the hidden supports, and the requirement for seismic fortification is improved. The wallboard structural system has the remarkable beneficial effects of being high in assembly rate, good in integrity and anti-seismic property, excellent in waterproofness and the like, and can be suitable for building of multi-storey house buildings and high-rise house buildings.

The invention discloses a buckling induced brace provided with length-variable pineapple type induction units at the end parts. The brace comprises a restraint section and an energy dissipation section and further comprises a flat brace section, wherein the energy dissipation section comprises at least one length-variable pineapple type induction unit in the axis direction of the brace; each length-variable pineapple type induction unit is a space body which is formed by arranging m length-variable pineapple type subunits in the annular direction sequentially and has a section of a 2m-regular polygon, and each length-variable pineapple type subunit is a space body formed by folding six isosceles triangle boards in the same plane. With the adoption of the buckling induced brace provided with the length-variable pineapple type induction units at the end parts, the buckling induced brace keeps elasticity under the action of small earthquakes and enters a yield stage under the action of medium earthquakes or large earthquakes, and the buckling induced brace can realize the effect of a damper by the aid of good hysteretic and energy dissipation performance. Compared with a conventional buckling restrained brace, the buckling induced brace has the advantages that workload for site operation is reduced in the aspect of a manufacturing process and energy conservation and environmental protection are realized.