56results about How to "Improve construction flexibility" patented technology

The invention discloses a prefabricated beam-column connection in prefabricated concrete buildings, comprising a prefabricated column, prefabricated beams and a joint connecting member. The prefabricated column is provided with through holes. Beam vertical bars are embedded in the prefabricated beams in advance. The joint connecting member comprises rebars, casings, hoops and cast-in-place concrete. The rebars extend through the through holes to be connected with the beam vertical bars through the casings and are fixed via the hoops. The cast-in-place concrete is poured in a beam-column connection area. A construction method of the prefabricated beam-column connection includes: producing the prefabricated column and the prefabricated beams; lifting the prefabricated column in place, and extending the rebars through the through holes; grouting the through holes; mounting the hoops temporarily on rebars extending out a connection face of a column connecting part; lifting the prefabricated beams in place, and connecting the rebars and the beam vertical bars through the casings; fixing the hoops at intervals to the rebars, casings and beam vertical bars connected with one another; and pouring the cast-in-place concrete. The prefabricated beam-column connection has excellent mechanical properties, is convenient to produce, store, transport and construct and is easy to industrially produce, construction period is shorter, and cost is saved.

A magnetic construction kit is provided for connecting base blocks with a variety of connecting rods. The construction kit includes a base block and a connecting rod having at least one magnetic connector suitable for cooperating with another magnet and/or for holding a spherical object. A stud connector can be included for attachment of the connecting rod to a stud of the base block. The stud connector may mechanically connect onto a stud extending from an exposed surface of the base block. Alternatively, the stud and stud connector may also have a magnetic attachment by providing a magnet in the stud connector and providing a stud made of, or coated with, a ferromagnetic material. The construction kit may also include different connecting rod structures that are suitable for achieving mechanical and/or magnetic connections to different sized base blocks.

The invention discloses a sliding platform and a construction method for separately mounting grid structures on high altitudes. The sliding platform for separately mounting the grid structures on the high altitudes is arranged in an industrial factory building. The industrial factory building is provided with crane beams, and overhead crane tracks are arranged on the crane beams. The sliding platform for separately mounting the grid structures on the high altitudes comprises a grid structure type sliding platform, a scaffold operating platform and pulling equipment. The grid structure type sliding platform is slidably arranged on the overhead crane tracks via a plurality of sliding rollers; the scaffold operating platform is arranged on the upper surface of the grid structure type sliding platform; the pulling equipment is connected onto the grid structure type sliding platform, so that the grid structure type sliding platform can slide along the overhead crane tracks. The mounting quality of the grid structures, with bolt-sphere joints, of the industrial factory building can be sufficiently guaranteed, the time and labor can be saved, and the safety of staffs for constructing the grid structures on the high altitudes and the safety of construction staffs below the staffs can be guaranteed. The sliding platform and the construction method have the advantages of flexibility, convenience, speediness and low cost. Besides, merits can become obvious along with increase of ratios of the longitudinal lengths to the span of the grid structure.

The invention introduces an assembled light wall plate and a mounting process. The wall plate has the following structures shown as figures 1, 2, 3 and 4, wherein in the figure 1, a keel has a strip square column structure, the keel is compounded by taking cement as a main raw material and adding auxiliary materials, the center of the keel is a cylindrical (or quadrate) hollow hole, and the keel is provided with a plurality of tiny reinforcement steel bars inside to improve the firm stability of the keel; in the figure 2, connecting clamps are made of galvanized steel sheets, the connecting clamps have a center protruding cylindrical structure, and the periphery of each connecting clamp is provided with a plurality of screw holes for fixing the keel; in the figure 3, a plaster flat plate is compounded by taking a fiber plaster as a main raw material; and in the figure 4, gun nails are used for fixing the plaster flat plate and the keel. In the mounting process, the keel and the connecting clamps are firstly assembled , the upper connecting clamp and the lower connecting clamp are fixed with a roof and a ground surface of a building by screws respectively, and the plaster flat plate is fixed with the keel by the gun nails. The mounting process is quick and simple, and walls are firm and durable.

The invention discloses an SMA asphalt concrete modifier and a preparation method thereof, and relates to the field of road engineering materials. The SMA asphalt concrete modifier comprises a modifier basic material composed of an SBS modifier, a cosolvent and a solubilizer, lignin fibers, a crosslinking agent and an accelerator. The preparation method comprises the steps: mixing the SBS modifier, cosolvent and solubilizer at high temperature to obtain the uniformly mixed modifier basic material; carrying out primary cooling treatment on the modified asphalt basic material, adding the lignin fibers and stirring to obtain the modifier basic material mixed with the lignin fibers; carrying out secondary cooling treatment on the modifier basic material mixed with the lignin fibers, adding the crosslinking agent and accelerator, and after uniformly mixing, granulating to obtain the SMA asphalt concrete modifier. The modifier prepared according to the preparation method can be directly added on site, solves the problems of segregation in storage and property attenuation of SBS modified asphalt, and also solves the construction deficiency of ununiform dispersion of added fibers and probable appearance of oil stain.

The invention discloses a large-diameter rock-socketed pile rapid construction method and a large-diameter rock-socketed pile rapid construction structure. Well wall reinforced concrete supporting ofa covering layer and bedrock part pile periphery pre-splitting drilling are completed through ground hole drilling and groove broaching. In the bedrock excavation process, in combination with pile periphery bedrock pre-splitting drilling, wedges placed in bedrock drill holes at the ground are hit to split bedrock, and thus stone excavation of the rock-socketed parts of the pile bodies is completed. The construction method is suitable for construction of pile foundations with different section shapes, and is particularly suitable for construction of large-diameter medium-hard rock-socketed piles. The construction method is high in construction flexibility, suitable for pile foundation construction under different topographic and geological conditions, easy and convenient to construct, safe,economical and rapid.

The invention discloses a composite modifier and a high-scattering-resistance drainage asphalt concrete prepared through the same and relates to the field of road engineering materials. The composite modifier is composed of base materials, fiber, comprehensive additives, cross-linking agent and cross-linking promoter, wherein the base materials are composed of SBS (styrene-butadiene-styrene) modifier, SBR (styrene butadiene rubber) modifier and solubilizer. The drainage asphalt concrete prepared through the composite modifier is high in scattering resistance. Through field deployment of conventional asphalt, aggregate, mineral powder and the composite modifier, a high-performance and stable-performance drainage mixture can obtained and meanwhile is more stable in properties compared with those applying modified asphalt, so that worries on storage segregation and performance degradation of the modified asphalt can be saved, and meanwhile construction deficiencies of dispersing non-uniformity of fiber deployment and grease spots can be completely avoided.

The invention relates to a construction method of a large-cross-section, porous, super-long and cast-in-place box culvert.The method includes the steps of construction of concrete and filling soil, laying of an external steel base plate, erecting of an external bracing truss, erecting of an external steel formwork, erecting of an upper construction platform, laying of a rail beam, erecting of an internal support, erecting of an internal steel die, pouring of concrete and the like.According to the construction method, the whole supporting die system can be rapidly mounted, disassembling and assembling are convenient, no large-scale disassembling and assembling is needed, next segment of construction can be conducted only by movement of wheels, construction cost is lowered, and operability and flexibility of construction are improved.

The invention discloses a reinforcement method and a structure for improving the post-anchor shear bearing capacity of concrete beams, comprising the following steps: connecting and fixing post-anchor steel beams with concrete beams; making installation holes at floor positions on both sides of the concrete beams; The screw goes through the installation hole of the floor; the steel plate is attached to the bottom of the concrete beam; the steel plate and the concrete beam are fixed by chemical anchor bolts; the U-shaped hoop plate is sleeved on the concrete beam from the lower part of the concrete beam; the screw is connected to the top hoop set on the top of the floor The two sides of the plate and the U-shaped hoop plate are welded; the U-shaped hoop plate and the steel plate at the bottom of the concrete beam are welded and fixed at the bottom of the concrete beam; the invention improves the shear bearing capacity at the anchorage position of the concrete beam and is no longer limited The cross-sectional size and concrete strength of the original structure concrete beams; increase the construction flexibility, avoid the wedge-shaped shear damage of the concrete edge, and effectively avoid the wedge-shaped shear damage of the concrete edge.

The invention discloses an automatic heat insulation assembly process of a multilayer composite fibre wall body outer wall. A wall body is assembled by an inner layer plate 1, an intermediate plate 5, an outer layer plate 9 and keelsons 2 and 4, wherein both faces of the inner layer plate, the intermediate plate and the outer layer plate are provided with symmetrical tiny graduation marks; when in installation, by taking the graduation marks as a standard, the outer layer plate 9 and the keelson 4 are fixed at the graduation marks on the outer surface of the plate corresponding to the keelson 4 by gun nails, and the intermediate plate 5 and the keelson 2 are fixed by the same method; then by taking the graduation marks as a standard, the intermediate plate 5 and the keelson 4 are fixed at the graduation mark on the outer surface of the plate corresponding to the keelson 4 by gun nails; and finally the inner layer plate 1 and the keelson 2 are fixed at the graduation mark on the outer surface of the inner layer plate 1 corresponding to the keelson 2 by gun nails, and after fixation, plaster pulp or cement pulp is filled in rectangular holes 6 and 8 formed between every two plates so that the wall body is firm and durable; and in addition, the sound insulation and the heat insulation effects of the wall body can be enhanced by filling sound insulation and heat insulation cotton in rectangular holes 3 and 7 according to needs.

An electrical transformer station comprising a modular foundation which is assembled from a plurality of cuboid modules fixed to each other and forming a solid and static foundation. The cuboid modules may be provided with T-formed grooves in the sides of the cuboid modules. Adjacent cuboid modules may be linked together by inserting corresponding H-formed plugs into the T-formed grooves of two adjacent cuboid modules.

The invention discloses a screw-thread steel intelligent connector. According to the technical scheme, the screw-thread steel intelligent connector comprises outer sleeves and a connecting casing; theconnecting casing is provided with a stepped groove; the outer sleeves and the connecting casing are mounted in a combined manner; a steel bar bonding part, a first spring and a second spring are arranged in each outer sleeve; the steel bar bonding parts are arranged in the outer sleeves; one end of each first spring is mounted in the corresponding steel bar bonding part, and the other ends of the first springs are arranged in the second-stage step of the groove; and the second springs are arranged in the groove. Stability is high, the steel bar connector can bond steel bars closely, no loosening is generated, the steel bar stability is good, and strength is high.

The invention relates to a combined foundation pit support beam string structure comprising a concrete beam, a support prestress device and a tensile device. A steel purlin is not arranged on the inner side of the concrete beam, and an end pull rod of the beam string structure is pre-buried and fixed in the concrete beam; the support prestress device directly or indirectly acts on the part, corresponding to the end pull rod, of the concrete beam; the support prestress device is not rigidly connected with the end pull rod; the tensile device comprises a metal piece pre-buried in the concrete beam in a foundation pit, and a prestress regulating device is connected with a prestress connecting piece; and the prestress connecting piece is connected with the part, extending out of the concrete beam, of the metal piece. According to the beam string structure, a truss support system and a beam string structure support system are separately independent, so that the truss support system and thebeam string structure support system are installed and constructed separately in the construction process, and further operated during removal separately; the construction period is shortened, and theconstruction flexibility is improved.

The invention relates to the technical field of agriculture, in particular to a soybean picking system and method. The soybean picking method comprises the following steps that S1, soybeans are picked after being completely mature, and a soybean picking equipment system is moved in place; S2, the lower section of the stem parts of soybean plants is positioned; S3, a lifting picking part on the soybean picking equipment system is controlled to work upwards to pick pod fruits and soybean leaves on the soybeans; S4, the picked bean pod fruits and bean leaves are collected into a mixed material collector at the upper part of the soybean picking equipment system; S5, a mixed material collector is started to realize beating and stirring so as to crush the bean pods and realize separation of internal beans from the bean pods; S6, the beans are conveyed and collected, and bean pods and bean leaves are crushed and discharged; S7, the beans are winnowed to remove impurities; and S8, the beans are packaged into bags. Soybean picking is achieved in a semi-automatic mode, the size of equipment used in the whole picking process is small, the soybean picking system can be suitable for farmland construction in large-area and small-area ranges, and the construction flexibility is high.

The invention discloses a granular instant dry SBS modifier for an asphalt pavement and a preparation method and application thereof, belonging to the field of road engineering materials. The main component of the granular instant dry SBS modifier is powdery SBS, and a separant, hydrotropic oil, a main cross-linking agent and an auxiliary cross-linking agent can be selectively added. The preparation method comprises the following steps: crushing SBS particles; then adding the separant, the hydrotropic oil, the main cross-linking agent and the auxiliary cross-linking agent into the obtained SBSpowder; and then carrying out cold granulation at a temperature of not higher than 80 DEG C in a flat die or circular die extruder with a cutting length of 10-30 mm so as to obtain the granular dry modifier. The granular dry modifier for asphalt prepared in the invention inherits the advantages of a dry-method process and a wet-method process, and can effectively improve the construction qualityof a pavement while enhance construction flexibility; and in addition, the problems of floating and dust flammability caused by only using micron-sized SBS powder are solved by adopting a prepared cold granulation mode.

The invention discloses a self-balancing large-span deep foundation pit prestressed beam system. The self-balancing large-span deep foundation pit prestressed beam system is arranged on a concrete beam on the inner wall of a foundation pit, a self-balancing prestressed beam supporting system comprises a plurality of web members fixed to the concrete beam, and the ends, away from the concrete beam, of the web members are movably connected to pull rods through pull rod connectors; the two ends of each pull rod are hinged to embedded parts embedded in the concrete beam correspondingly; the problem that a vertical bearing component must be arranged in a foundation pit in a conventional steel supporting system is solved; prestress is applied to the pull rods to react on the web members to balance the soil pressure outside the foundation pit; the large-span prestressed beam improves the excavation efficiency of earthwork in the foundation pit, reduces the material consumption of the supporting system, and saves the manufacturing cost; and the supporting system can be repeatedly used and has the advantages of being short in construction period, low in cost, good in safety performance, environmentally friendly, free of pollution and the like.

The invention relates to a box culvert transport vehicle which comprises a vehicle frame and a walking system. The walking system comprises multiple independent suspension mechanisms. Each independentsuspension mechanism comprises a suspension drive component. A supporting system is arranged above the vehicle frame and comprises a cushion block and a cushion block adjusting component. A box culvert construction method includes the steps that the independent suspension mechanisms are lifted, enter a culvert and fall to the inner wall of the culvert; the lifted independent suspension mechanismsfall to the ground after traveling into the culvert, the height of the cushion block is increased, a box culvert is transported to an assembling position, the independent suspension mechanisms are lifted, travel into a culvert of a former box culvert and fall to the inner wall of the culvert of the former box culvert; the independent suspension mechanisms are adjusted when traveling to the matched positions; and the vehicle travels out, and the lifted independent suspension mechanisms fall to the ground. The box culvert transport vehicle is safe, reliable, free of congestion and beneficial toenvironment protection, the vehicle is barely influenced by weather, operation efficiency is high, and construction and operation are convenient.

The invention discloses a hoisting machine with pipe cavity frame arc opening rubber supporting pad closing for pipeline construction. The hoisting machine structurally comprises a hub vehicle chassis, a cab, a transverse penetrating pipeline, a lifting transverse rod, a lazy arm frame, a slide fastener seat and rubber supporting pad lifting plate frames. The transverse penetrating pipeline and the rubber supporting pad lifting plate frames are matched to form the effect of small clamping claws composed of side rubber coating blocks and rubber supporting pad plates on a pipe cavity frame arc opening rubber supporting pad, wrapping and closing of the edge sides of an upper rubber face and a lower rubber face are convenient, an arc face tight pressing-attaching protection effect is achieved,and interference of transverse shaking force with lifting balance of the transverse penetrating pipeline is avoided; then angle adjusting wheel discs are matched to form the limiting degree of left-right external support of strengthening rib vertical plates, the cross pressure of the strengthening rib vertical plates conveniently conducts included angle adjusting work on the top end of the upperedge of a pipe cavity frame opening, and thus the whole hoisting machine achieves the effect of large action displacement on lifting of a transverse lifting pipe and overturning of a longitudinal lifting pipe during pipeline construction; and pipe opening locking is efficient, the phenomenon of balance degree skewing caused by sliding is avoided, and thus the pipeline construction flexibility is improved.