35results about How to "Improve space rigidity" patented technology

The invention discloses a petroleum wellhead annular space sealing device. The petroleum wellhead annular sealing device is used for sealing an annular space between a wellhead sealing body and a petroleum pipe, at least one annular groove is formed in the inner wall surface of the sealing body, and the sealing body is provided with an injection hole which is communicated to a centrifugal end of the annular groove; the petroleum wellhead annular space sealing device further comprises a sealing ring, a power ring, and an injection component, wherein the sealing ring is embedded into the annular groove, the sealing ring is used for sealing the groove in the radial direction by being jointed to the wall surface of the annular groove, and is used for sealing the annular space by being jointed to the outer wall of the petroleum pipe, the power ring is installed in the annular groove and is located between the groove bottom of the annular groove and the sealing ring, and the injection component is installed in an inlet of the injection hole, and is used for injecting fluid with given pressure so as to make the power ring push the sealing ring to tightly press the petroleum pipe. In the petroleum wellhead annular space sealing device, the requirement for deformation capability of a sealing part is low, and meanwhile the sealing capability can be effectively improved.

The invention provides an especial-big span suspension bridge of a uniparted hyperboloid space rope net main cable and a construction method thereof. A straight line character of the uniparted hyperboloid is used to change a vertical parallel cable rope system of an original suspension bridge. A thick and heavy centralized cable rope is changed into a dispersive space steel wire cable rope. Multiple strand of steel wire cable ropes are arranged in a cross mode. Space rope net main cable-cross nodes are fixed to form a space cable rope system of the uniparted hyperboloid type. An oval steel strengthening ring beam is arranged. A suspender and a stiffening beam are installed. A gate-type rigidity middle buckle is arranged. The especial-big span suspension bridge of the uniparted hyperboloid space rope net main cable system is built. The especial-big span suspension bridge of the uniparted hyperboloid space rope net main cable system has the advantages of being strong in span capacity, large in space structure rigidity, high in screw frequency ratio, good in wind resistance stability and the like. The novel space main cable system suspension bridge is capable of radically saving the problem of the wind resistance stability of the big span suspension bridge and used for projects of a striding sea connected island. The especial-big span channel suspension bridge of 3000-5000 meters is built.

The invention relates to a sound barrier structure for high speed railways. The sound barrier structure comprises a steel upright post and a plurality of sound barrier absorption/sound insulation unit plates which are transversely inserted in the steel upright post; elastic rubber is filled in a gap between a flange plate of the steel upright post and the sound barrier absorption/sound insulation unit plate; the sound barrier absorption/sound insulation unit plate comprises a front side plate, a rear side plate, locking buckles, a central framework and a sound absorption material, wherein the front side plate and the rear side plate are locked to a first locking plate and a second locking plate and the upper side and lower side of the central framework through the locking buckles; and the sound absorption material is filled in the gaps inside the locked front and rear side plates. Based on the conventional sound barriers, the sound barrier structure has good economic performance and durability by improving and expanding the types of the conventional sound barriers, and particularly the mechanical strength is greatly improved; and because the technology of bolt-free connection is adopted, the rigidity, shock resistance, fatigue resistance and safety performance of the sound barrier structure are greatly improved.

The invention provides a tube-in-tube bridge tower of a space hybrid cable net suspension bridge with a parabolic arched tower cap. The tube-in-tube bridge tower of the space hybrid cable net suspension bridge with the parabolic arched tower cap is characterized in that the parabolic arched tower cap with a rigid tie rod is arranged at the top of a tube-in-tube herringbone tower column; one end ofa giant diagonal bracing is anchored to the waist of the tube-in-tube herringbone tower column; the giant diagonal bracing supports the arch foot of the parabolic arched tower cap and forms a racket-like bridge tower structure; a load-bearing steel cable is placed on the tube-in-tube herringbone tower column, and a carbon fiber space cable net is anchored on the parabolic arched tower cap to enhance the spatial stiffness of the suspension bridge and realize the cooperation between two groups of cables; a concrete-filled rectangular steel tube corner column and a grille tubular double-steel concrete composite shear wall are adopted to form a tube structure; the tube-in-tube herringbone tower column comprises an outer tube structure, a core tube structure and multiple rigid diaphragms. Thetube-in-tube bridge tower of the space hybrid cable net suspension bridge with the parabolic arched tower cap has various advantages, such as strong structural rigidity, good wind resistance stability, rich facade modeling, strong earthquake resistance, and capability of being adopted as a bridge tower structure of a space cable net suspension bridge with a super-long span of 4000 meters.

The invention discloses a butterfly-type cable-stayed bridge system. The system comprises bridge towers, main girders, abutment piers, stayed cables and asymmetric curved arches. The asymmetric curved arches are arranged in a main span, and in the area, the two ends of each stayed cable are connected with the corresponding bridge tower and the corresponding asymmetric curved arch respectively. Inclined suspenders located on the same straight lines of the stayed cables are arranged at anchorage points on arch ribs, and the inclined suspenders are connected with the main girders. Meanwhile, the tension of the inclined suspenders is larger than the cable force of the stayed cables, so that the arch ribs are compressed, and at the moment, loads are born by the stayed cables and an arch-girder system together. The asymmetric curved arches have the stiffening effects on the stayed cables in the areas of the asymmetric curved arches, the main girders, the asymmetric curved arches and the inclined suspenders in the arches form a spatial framework structure together, and the space stiffness of the cable-stayed bridge main span is improved so as to be beneficial to the effect of resisting the wind loads; meanwhile, the downward deflection deformation of the main girders is reduced, the deformation of the stayed cables is reduced, so that the cable force of the main span is reduced, and the stress state of the bridge towers is improved.

The invention discloses large-span multifunctional roboticized engineering construction equipment and belongs to the technical field of civil engineering construction mechanical equipment. The large-span multifunctional roboticized engineering construction equipment comprises a plurality of supporting stand columns, steel wire rope driving units, steel wire rope guide devices, steel wire ropes, a controller and an end effector. The steel wire rope driving units, the steel wire rope guide devices and the steel wire ropes are matched with the supporting stand columns. The multiple supporting stand columns are arranged around the construction area, and a hydraulic cylinder is arranged in each supporting stand column to achieve ascending and descending of the supporting stand column in the vertical direction. Each steel wire rope driving unit is fixed to one side of the corresponding supporting stand column. The steel wire rope guide devices are arranged at the top ends of the supporting stand columns. One end of each steel wire rope is connected with the corresponding steel wire rope driving unit, and the other end of each steel wire rope penetrates the corresponding supporting stand column to be connected with the end effector after reaching the corresponding steel wire rope guide device. Remote control over the end effector is achieved through the controller, the large-span multifunctional roboticized engineering construction equipment can do wide-range large-span three-freedom-degree motion, the corresponding end effector is used in cooperation, and the work of punching and piling, wall breakage, pavement reconstruction and material carrying is completed.

The invention provides a single-leaf hyperboloid celebration flower basket frame, which utilizes the straight-grain characteristics of the single-leaf hyperboloid to construct a space intersecting slanting bar net tube, fix the intersection nodes of the space bars, and set multiple reinforcing ring beams to form a single leaf Hyperboloid Celebration Flower Basket Frame. Set up multiple partitions to divide the internal space of the single-leaf hyperboloid flower basket, set an oval concrete counterweight partition at the bottom to increase the stability against overturning, set a wooden partition on the upper part to place the upper flower pots, and arrange the lower layer around the body of the flower basket For flower arrangement, a plastic partition is set in the middle to place a goldfish tank, and the space between the goldfish tank partition in the middle and the concrete partition at the bottom doubles as a bird cage. The new celebration flower basket frame has the advantages of stable and firm structural skeleton, beautiful shape with small waist, diversified flower basket functions, convenient production and low cost.

The invention discloses a construction method of spatial grid structure engineering, and particularly relates to the field of building construction. The construction method comprises the steps that 1, the positioning axis of a grid support, the specification and positions of support anchor bolts, and the position, elevation and levelness of a top plate on a supporting face are checked, unqualified workpieces are removed, and the parts with unmatched flatness and elevation are cushioned to be flat through steel plates; and 2, materials which are qualified after checking are welded, the welded workpiece structures are subjected to a tension test, unqualified workpieces in the tension test are removed, and the workpieces are identified and classified according to the different functions of the workpieces. The construction method of spatial grid structure engineering is regular, the shapes and the sizes of a large numbers of joints and rod pieces are the same, the methods utilized during mounting are the same, production is convenient, the product quality is high, on-site assembling is easy, the construction speed can be increased, the occupied space of a structure is small, the space can be utilized more effectively, and by adopting the mounting method, the space stability of the overall grid system can be greatly improved.

The invention relates to a seagull-type space dorsal cable-stayed bridge system. The cable-stayed bridge comprises bridge towers, stay cables, main beams, side piers, middle piers, back cables and inhaul cables, and relates to the technical field of bridge engineering, wherein the bridge tower is designed to be arc-shaped; two ends of the back cable are respectively anchored at the top of the bridge tower; one end of the inhaul cable is connected with the back cable; the other end is anchored at the root of the bridge tower; the bridge towers, the back cables and the inhaul cables form a three-dimensional frame structure; the space rigidity of the cable-stayed bridge can be improved; the effect of resisting dead load and live load is facilitated; the back cable can be tensioned at the tower top for cable force adjustment; the inhaul cable can be tensioned at the root of the bridge tower for cable force adjustment; therefore, the stress state of the bridge tower under the action of deadweight and tension of the stay cable is improved; therefore, the line shape of the bridge tower is close to the reasonable arch axis, the bending moment borne by the root of the bridge tower is reduced, that is, the size of the cross section of the tower bottom does not need to be designed to be very large, and therefore the spanning capacity of the cable-stayed bridge can be enhanced, material loss and cost can be reduced, and the aesthetic feeling of the bridge can be enhanced.

The invention relates to a large-span horizontal pulling type cylindrical net-shaped pedestrian landscape suspension bridge and a construction method thereof. A horizontal pulling type pedestrian suspension bridge in a canyon scenic area is reformed by referring to a Tibet rattan net bridge, heavy concentrated cables are changed into dispersed single-blade double-curved-surface barrel net-shaped space cables, a small number of oval rigid stiffening rings are arranged in a barrel net, double-spiral steel wire stirrups in the positive direction and the negative direction are wound around the outer portion of the barrel net, and therefore, the large-span horizontal pulling type cylindrical net-shaped pedestrian landscape suspension bridge is formed. The single-blade double-curved-surface cylinder net-shaped space cables, the oval rigid stiffening rings and the double-helix steel wire stirrups work cooperatively, the torsional rigidity and lateral rigidity of the pedestrian suspension bridge are improved, and the pedestrian suspension bridge has good wind-resistant stability. According to the bridge tower anchoring barrel net-shaped space cable with the curved double-limb pier column and the huge oval steel ring tower cap, the weight of a single-strand cable is reduced through the scattered barrel net-shaped space steel wire cable, and construction is convenient. A transparent glass bridge deck is embedded in a bridge deck truss, cirrus grass is wound on the cylinder net-shaped space cable in a double-spiral mode, sunlight is shielded, ecological and environment-friendly effects are achieved, the appearance is attractive, tourists walk in the cylinder net-shaped suspension bridge, and personal safety can be guaranteed.

The invention aims to provide a house edge beam member. According to the technical scheme, the house edge beam member is composed of a main frame, an inner hanging opening, an outer hanging opening, a double-layer inserting plate, an outer fixing bayonet, an inner fixing bayonet and a fixing ring, wherein the inner hanging opening is fixedly connected to the inner side of the main frame, the outer hanging opening is located at the other side of the inner hanging opening, the double-layer inserting plate is located at the other side of the outer hanging opening, the outer fixing bayonet is located at the lower part of the double-layer inserting plate, the inner fixing bayonet is located at one side of the inner hanging opening, the fixing ring is located at the lower part of the inner fixing bayonet, and the components are fixedly connected with the main frame. By adopting the improved house edge beam, the space stiffness of a house is improved, the integrity of a building is increased, the shear strength and tensile strength of a brick building body are improved, subsidence and sedimentation caused by uneven foundation are prevented, and damage of earthquake or other large-scale vibration to the house is weakened.

A horizontal pulling type pedestrian suspension bridge of a hyperbolic paraboloid space crossed cable net is characterized in that a hyperbolic paraboloid space crossed cable net system is formed by spatially crossing a plurality of steel wire cables, and the spatial configuration of the hyperbolic paraboloid space crossed cable net is a cable net with an upward notch formed by drooping of the hyperbolic paraboloid space crossed cable net; the double-limb column bridge tower is composed of a double-limb column frame and a parabola concave cover beam, the hyperbolic paraboloid space cross cable net system is hung on the parabola concave cover beam of the double-limb column bridge tower, and the back inhaul cable is divided into a left strand and a right strand to be anchored in the anchorage. The bridge deck structure system in the form of a pipe truss structure is placed in a groove of the hyperbolic paraboloid space crossed cable net system. The hyperbolic paraboloid space cross cable net is arranged in an inclined cross mode, the inclined cross cables can provide horizontal component force, lateral stiffness and torsional stiffness are improved, the horizontal pulling type suspension bridge is prevented from swinging and shaking by a large margin left and right, wind resistance stability is improved, and the hyperbolic paraboloid space cross cable net has the advantages of being simple and light in structure, thin and smooth in shape and fresh and elegant in aesthetic feeling.

The invention provides a step-back hole mold which comprises a hole frame sleeve, a reinforcing flange and a cover plate, wherein a plurality of inverted steps are formed on the outer wall of the holeframe sleeve and towards the outer side of the hole frame sleeve from bottom to top, the reinforcing flange is used for installing a hole formwork, the edges of a lower opening of the hole frame sleeve extend towards the inner side of the hole frame sleeve to form the reinforcing flange, and the reinforcing flange is arranged on the edges of the lower opening by a circle in the circumferential direction; and the cover plate is used for shielding an upper edge of the hole frame sleeve, and the cover plate can be foldably installed at the top of the hole frame sleeve. The step-back hole mold solves the problems of poor positioning effect, poor protection effect and easy water leakage of a traditional aluminum mold material transferring port mold.

The invention discloses a large-span space cable net system suspension bridge, and belongs to the field of civil engineering. The large-span space cable net system suspension bridge mainly comprises arch-shaped bridge towers, main cables, suspension rods, parallel cables, space cable nets, back cables, arch-shaped ring beams, stiffening steel beams, anchorages, bearing platforms, pile foundationsand other structures. A Bessel curve is applied to optimize a traditional portal bridge tower, so that the line shape of the portal bridge tower is smoother, and the anchoring requirement for arranging space cables can be met more easily; the space cable net is arranged in a hyperbolic paraboloid form, so that the space rigidity and the flutter critical wind speed of the cable system are effectively improved; and meanwhile, the excellent mechanical property of the uniparted hyperboloids is applied to improve the appearance of a traditional pile foundation pile body, and the anti-overturning performance is obviously improved under the condition that the anti-bending and anti-shearing bearing capacity of the pile foundation pile body is guaranteed. The large-span space cable net system suspension bridge provided by the invention can greatly improve the wind-resistant stability of the suspension bridge, and can be used as a reference for constructing the large-span space cable net systemsuspension bridge.