60results about How to "Reduce calculation length" patented technology

The invention provides a crossed reinforcing device for a power transmission tower. The crossed reinforcing device comprises reinforcing pieces and a plurality of pairs of external clamping pieces. The reinforcing pieces correspond to angle steel main materials of the power transmission tower, and the reinforcing pieces and the angle steel main materials are arranged oppositely on the outer cornersides of the angle steel main materials to form crossed structures for reinforcing of the power transmission tower. Each pair of external clamping pieces is arranged in two connecting spaces betweenthe outer corner side of the corresponding reinforcing piece and the outer corner side of the corresponding angle steel main material for fixing the reinforcing piece to the angle steel main material.According to the crossed reinforcing device, reinforcing of the reinforcing pieces to the angle steel main materials is ensured, and the influence of original inclined materials / transverse partitionmaterials is skillfully avoided, thus the reinforcing pieces and the angle steel main materials are closely attached, the using performance of the power transmission tower is not affected, construction operation is convenient, the power transmission tower does not need to be punched, welded or detached, damage of punching and welding to the performance of the power transmission tower, especially the strength of the angle steel main materials, is avoided, the accidents such as collapse of the angle steel main materials are prevented, and meanwhile, the difficulty of altitude operation of operators on the power transmission tower is reduced.

The invention provides a light steel assembly type composite wall board, a light steel framework, a manufacturing method and an installing method thereof. An outer side frame of the light steel framework uses M-shaped steel; the inside uses C-shaped steel; the outer side frame is connected by C-shaped connecting elements through tapping screws; the vertical and horizontal bearing force is obviously improved; the anti-shearing and load bearing effects are good; a sandwich heat simulation layer is filled into the light steel framework; the heat simulation and light steel framework deformation limitation effects are achieved; the outer maintenance plate is attached to the outer side of the light steel framework; a heat insulation layer is arranged between the outer maintenance plate and the light steel framework; the outer maintenance plate and the light steel framework are connected through tapping screws; the horizontal anti-shearing capability, anti-cracking and anti-impacting performance of the wall body are further improved; the factory wet operation is reduced; the cold and heat bridge influence is reduced; the wall board and the main board are fixed through turnbuckles and sleeves; the connection is simple and reliable. The forming components of the composite wall board have the advantages that the types are few; the dead weight is light; steel consumption is low; heat insulation and sound isolation effects are achieved; the assembled degree is high; the fast full prefabricated assembled construction can be realized; the cost is low; the light steel assembly type composite wall board is applicable to low and multi-storey building load bearing wall systems.

The invention relates to a steel bone concrete column, and particularly relates to a box-type steel bone confined concrete column with cross constraint batten plates. The box-type steel bone confined concrete column disclosed by the invention comprises a box-type steel bone, the cross constraint batten plates, longitudinal reinforcement, a composite stirrup and concrete, wherein the cross constraint batten plates are respectively welded and connected with steel plates at two opposite edges of the box-type steel box in the middles of the steel plates in a sectioning manner, so that the calculated length of each edge steel plate of the box-type steel bone is effectively reduced, the buckling deformation is constrained, and meanwhile, the inspection capability of internal concrete of the steel bone is enhanced by existence of the cross constraint batten plates. The cross constraint batten plates are arranged at intervals, so that the pouring quality of the concrete is ensured when the edge steel plates of the box-type steel bone are constrained. Therefore, the concrete disclosed by the invention has the relatively high strength and good elastic-plastic deformation capacity, and the formed steel bone concrete column has the relatively hhigh bearing capacity, ductility and energy-dissipating capacity.

The invention discloses a light-steel industrialized residential structure system and belongs to the technical field of steel structure resistance system. An exterior wall system comprises U-shaped steel wall frames and C-shaped steel wall columns. Each U-shaped steel wall frame comprises a square frame body sequentially enclosed by a U-shaped steel upper frame, a U-shaped steel left frame, a U-shaped steel lower frame and a U-shaped steel right frame. A U-shaped steel rail is fixedly mounted between the middle portion of each of the U-shaped left frame and the U-shaped right frame, cable-stayed steel belts are mounted diagonally in the square frame body, and a slot base of each of the U-shaped left frame and the U-shaped right frame is provided with a plurality of evenly-distributed through holes II. Each C-shaped steel wall column comprises C-shaped steel, and a slot base plate and two side plates of the C-shaped steel are provided with a plurality of evenly-distributed bolt holes III. The outer side of each of the U-shaped left frame and the U-shaped right frame is provided with a C-shaped steel wall column in a matched manner, and each bolt hole III in the C-shaped steel wall column is correspondingly arranged with each through hole II of each of the U-shaped left frame and the U-shaped right frame and are fixedly connected through bolts.

The invention discloses a steel bracket column used for a factory. The two sides of a web plate of the steel bracket column are respectively fixedly provided with a row of brace rods (2), the brace rods (2) at the two sides of the web plate are symmetrical to the web plate (1) and are vertical to the plane on which the web plate (1) is located; and prestress construction members (3) are connected between the uppermost brace rod (2) and the bottommost brace rod (2) at each side of the web plate (1). Compared with the prior art, a certain amount of brace rods are fixed on the web plate of the steel bracket column, and prestress is applied to the prestress construction members, thus the effect of reducing out-plane calculated length of the construction member, and finally the out-plane stability of the construction member is guaranteed, thus the construction member is required to meet the in-plane stability only. Besides, the structural design in the invention is reasonable, not only is the structure simple, but also the design section is greatly reduced, and the economic cost is saved.

The invention relates to an integrated beam-column joint of a container modular building, The integrated beam-column joint comprises a first horizontal plate and a second horizontal plate, and a thirdvertical plate, a first vertical plate, a second vertical plate and a fourth vertical plate which are vertically and sequentially connected are arranged between the first horizontal plate and the second horizontal plate to form an empty operation area, the width of the third vertical plate and the fourth vertical plate in the horizontal direction is correspondingly smaller than that of the secondvertical plate and the first vertical plate in the horizontal direction to form a gap for entering the empty operation area, the first horizontal plate, the third vertical plate and the fourth vertical plate are respectively connected to a column, a first horizontal beam and a second horizontal beam of the container module building, and the second horizontal plate, the first vertical plate and the second vertical plate are provided with screw holes. Compared with the prior art, the integrated beam-column joint has the advantages of convenient disassembly and assembly, compact structure and the like.

A manufacturing and mounting method of a combined wall for a fabricated house comprises the steps that firstly, a plurality of outer walls and inner walls are prefabricated, each outer wall is provided with a light microcrystalline plate and a concrete wall layer, each inner wall is provided with a concrete wall layer, and a plurality of floor connecting pieces are arranged on the top sides of ceiling keels of the outer walls and the inner walls in a penetrating mode through a plurality of connecting bolts; a plurality of foundation bolts are arranged on the bottom sides of the ground keels of the outer wall body and the inner wall body in a penetrating mode; a concrete foundation is manufactured, a plurality of wall body mounting holes are machined in the concrete foundation, then the wall body mounting holes are filled with grouting materials, the outer wall body and the inner wall body are hoisted to the concrete foundation, and the foundation bolts are inserted into the wall body mounting holes respectively; and the floor slab is hoisted to the top side of the bottommost layer of combined wall body, and the outer wall body and the inner wall body are hoisted to the lower layer of combined wall body layer by layer. The combined wall can be prefabricated in a factory or on site, wet operation of concrete pouring on site is avoided, and the installation precision is easy to control.

The invention discloses an inlet flue triangular truss suspension type denitration reactor device. According to the device disclosed by the invention, two ends of a top supporting beam of a traditional denitration reactor body extend to a peripheral steel bracket platform of a denitration reactor to be used as a low chord rod of a triangular truss; one triangular truss is arranged above each supporting beam; a hoisting rod is mounted at a node of the low chord rod and is connected with each layer of a catalyst module supporting beam at the lower side; a reactor wall plate is mounted on a peripheral hoisting rod to form the denitration reactor body; an outlet flue is mounted at the lower end of the denitration reactor body; and limiting devices in the horizontal direction are arranged at four sides of the middle part of the reactor respectively to form the suspension type denitration reactor device. The inlet flue triangular truss suspension type denitration reactor device has the beneficial effects that the device can be used for sufficiently releasing structure performance of an original inlet flue, stress characteristics of a whole structure are changed and limitation on the stability and slenderness ratio of a compressed member is avoided; the section of the member is wholly reduced, the self weight is reduced and the cost is saved; and a suspension type structure is utilized so that the earthquake effect on the member also can be reduced.

The invention discloses a sinusoidal signal frequency measurement method. The method comprises the following steps: performing level data weighting on sinusoidal signal samples with the length of N; processing the weighted data by using rearrangement parameters sigma 0, sigma 1 and sigma 2, and reducing the data length from N points to N / M points on the premise of reserving effective harmonic components of a frequency domain to complete spectrum compression; sequentially carrying out N / M point FFT operation on three groups of data obtained by frequency spectrum compression, then, carrying outinter-group comparison on effective harmonic components contained in three groups of FFT results, and selecting two groups of FFT results with the closest harmonic component amplitudes to carry out module value and position estimation; and obtaining the sinusoidal signal frequency by using the obtained module value and position estimation. According to the sinusoidal signal frequency measurement method, the frequency of the measured signal can be accurately estimated; and the FFT calculation length is reduced through frequency spectrum compression, the frequency measurement range is wide, thenumber of calculation points of FFT is remarkably reduced, and the FFT calculation time delay and complexity are greatly reduced.

The invention discloses an inner anchoring suspension bridge with oblique axis cable bent towers. The inner anchoring suspension bridge mainly consists of a main cable, suspension cables, oblique axis cable bent towers, horizontal bars and a stiffening girder, wherein the suspension cables are uniformly arranged between the main cable and the stiffening girder; an oblique axis cable bent tower foundation is cast at the bottom of each of the oblique axis cable bent towers; a steering block II is arranged at the bottom of each of the oblique axis cable bent tower foundations; a cable saddle is arranged at the top of each of the oblique axis cable bent towers; one end of each of the horizontal bars is connected with the corresponding oblique axis cable bent tower, and each steering block I is arranged at the other end of the corresponding horizontal bar; and the end part of the main cable sequentially goes around the cable saddles, the steering blocks I, the steering blocks II, and is finally anchored on the stiffening girder. According to the inner anchoring suspension bridge with the oblique axis cable bent towers disclosed by the invention, anchorages which are large in size are not used, and the calculating length of the main cable for connecting the anchorages is reduced, so that the stress and the amplitude of the main cable are reduced under the effect of a permanent load; the main cable goes around the oblique axis cable bent tower foundations, so that the pressure of the cable bent towers to bases is reduced; and the main cable is anchored on the stiffening girder, and axial force is provided by the stiffening girder for balancing part of horizontal component force of the main cable, so that the aerodynamic performance of the suspension bridge is improved, the horizontal thrust of the foundations is reduced, and investment is reduced.

The invention relates to a shuttle-shaped constraining type buckling-restrained brace, and belongs to the technical field of structural engineering. The shuttle-shaped constraining type buckling-restrained brace is composed of a cross core component and a peripheral restraining component. The cross core component is formed by welding three flat steel plates, and hard rubber is pasted on the surface of the cross core component. The peripheral restraining component is composed of a restraining steel pipe with concrete inside, two bent square steel pipes with concrete inside and connection steel plates. A circular steel pipe or a square steel pipe can serve as the restraining steel pipe, and concrete is poured into the restraining steel pipe. Concrete is poured into the two bent square pipes which are placed in symmetrical positions on the two sides of the restraining steel pipe. The ends of the peripheral restraining component are close to the restraining steel pipe, and the middle of the peripheral restraining component is the farthest away from the restraining steel pipe. The bent square pipes are each formed by welding and connecting two straight square steel pipes. According to the shuttle-shaped constraining type buckling-restrained brace, when the peripheral component bears the core squeezing pressure, the bending moment of the middle section of the component is large, the bending moment of the section of the end of the component is small, and the shuttle-shaped constraining type buckling-restrained brace is suitable for being used as the super tonnage buckling-restrained brace striding over multiple floors in a high-rise structure.