92results about How to "Simple and fast construction" patented technology

The invention relates to a construction method of an anti-typhoon sea wave sea-crossing steel trestle and platform adjacent to a residential building. The construction method comprises the steps that firstly, deep fusion application of BIM and VR is conducted; step 2, surveying and setting out; step 3, embedding steel bars and pouring strip-shaped concrete; fourthly, the steel pipe piles are transported and lengthened; fifthly, steel pipe piles are driven; sixthly, parallel connection and diagonal bridging construction is conducted; seventhly, bearing beams are installed; eighthly, longitudinal beams are installed; ninthly, the distribution beams are installed; tenthly, bridge deck slabs and guardrails are installed; and 11, an intelligent monitoring and early warning system.

The invention discloses a light spray coating and a construction process thereof. The light spray coating comprises 15-20% of cement, 15-20% of plant particles, 35-40% of building material particles, 15-18% of clay, 5-8% of siliceous superfine powder, 3-5% of cellulose, 3-5% of alumina micropowder and 0.02-0.05% of aluminum powder. The construction process comprises the following steps: S1, mixing and stirring the light spraying material, adding water accounting for about 3% of the total weight of the light spraying material for wetting, forming a semi-dry material, and filling the semi-dry material into a powder tank of a powder spraying machine; s2, a semi-dry method is adopted for spraying, the semi-dry material in the step S1 is fed into a muzzle of a powder spraying gun, atomized water is added into the muzzle, and the semi-dry material is sprayed to a construction part in the sequence of water first and material second; and rubber powder is added into the atomized water. The materials in the spray coating are simple and easy to obtain, the cost is low, the effects of comprehensive reinforcement and no influence on the internal ecology of the soil can be achieved, the construction is simple and rapid, and a construction foundation does not need to be built; the setting time is extremely short, and the construction period is not delayed; the terrain does not need to be considered, the construction surface is smooth, and the original construction part is not changed too much.

The invention belongs to the technical field of suspension bridge upper structure construction, and particularly relates to a cable clamp type auxiliary cable saddle installation method based on an assembly type temporary cable saddle. The invention discloses a cable-clip-like auxiliary cable saddle mounting method based on an assembled temporary cable saddle. The cable-clip-like auxiliary cable saddle mounting method comprises the following steps that mounting construction of a main tower and an auxiliary tower is completed; a main cable saddle and an assembly type temporary cable saddle are installed, then cable strand erection is conducted on the basis of the assembly type temporary cable saddle, and cable strand sag alignment, cable tightening and cable clamp installation are completed; hoisting a stiffening beam in the midspan, pushing the main cable saddle towards the midspan to lift the main cable to a set height, dismounting the fabricated temporary cable saddle, mounting the lower half saddle body of the cable-clip-like auxiliary cable saddle, and then mounting the upper half saddle body to complete the mounting of the cable-clip-like auxiliary cable saddle. By means of the structural characteristics of the suspension bridge, additional internal force generated on the main tower and the auxiliary tower and bidirectional pushing of the main cable saddle are avoided, sag adjustment of the cable strands is facilitated, safety and reliability are achieved, and the safety risk in the whole construction process is reduced.

The invention relates to the technical field of building construction, in particular to a bottom-expanded rotor steel pipe pile and a construction technology thereof.The bottom-expanded rotor steel pipe pile comprises a pile body steel pipe, a bottom-expanded wing ring and a pile top grouting blind plate, one end of the pile top grouting blind plate is a connector end, and the connector end is connected with the power end of a drilling machine; the rotary cutting is performed through the bottom-expanded wing ring; an injection cavity is formed in the pile body steel pipe. According to the bottom-expanded rotor steel pipe pile, the large bearing capacity can be provided under the small diameter. The steel pipe pile can form a larger bearing area in soil, so that the bearing capacity of a single pile is remarkably improved, and the steel pipe pile is suitable for various types of soil and rocks including soft soil, sandy soil, cohesive soil, soft rocks and the like. The rotary cutting mode is adopted for burying, the construction process is relatively simple and rapid, and the construction efficiency can be remarkably improved. And meanwhile, a large amount of slurry treatment and dumping operation are not needed, so that the construction time and cost are further saved.

The utility model belongs to the field of engineering construction, and particularly relates to a fixing device capable of being quickly assembled and disassembled on a round rod, the device comprises a detachable shell part and an internal assembly part, the detachable shell part comprises a top cover, a conical shell and a detachable bottom cover, and the internal assembly part comprises an upper baffle, a lower baffle, a small ball and an auxiliary spring. The upper baffle and the lower baffle both comprise poking pieces, a longitudinal opening allowing the poking pieces to slide up and down is formed in the conical shell, the round rod is rapidly locked by the small ball through the acting force of the lower baffle and the auxiliary spring, the poking pieces of the upper baffle fluctuate downwards, and the device is rapidly unlocked. The nut is simple in structural design, does not need external tools, is convenient to disassemble and assemble, is suitable for any angle, can be replaced and maintained, can replace the function of a nut in many aspects, is also suitable for a smooth round rod which is not suitable for the nut, greatly saves time, improves the disassembly and assembly efficiency of an operator, and reduces the labor intensity of the operator. And an inexperienced person in daily life can also conveniently use the device.

The invention relates to the technical field of building engineering, and discloses a foundation stage waterproof protection layer construction method which comprises the following steps: step 1, constructing a foundation raft cushion layer, constructing a waterproof layer, and pouring a planar waterproof protection layer after the waterproof layer construction is accepted and accepted by a supervision unit; secondly, brick forming die construction parts are adopted on the periphery of the foundation raft, and a batch of bricks are arranged on the top of a brick forming die for a top waterproof protection layer; thirdly, the bottom is filled with cement mortar, and cement pressure plates are laid in a staggered joint mode; fourthly, when the foundation raft has an inclined plane, the bottom is underlaid with cement mortar, the top is in lap joint with the plane through anti-crack mortar internal pressure gridding cloth, and it is guaranteed that the cement pressure plate does not fall off. Usually, 1: 2.5 cement mortar hanging nets are adopted for construction on the vertical face of the brick blank film and the vertical face of the bearing platform foundation, a 10 mm cement pressure plate is adopted, the strength is not smaller than 20 Mpa, the strength of a protection layer can be guaranteed, labor is greatly saved, the construction progress is accelerated, and construction is easy and convenient.

The invention relates to the technical field of granary ventilation and grain discharging, in particular to a multifunctional round bulk granary bottom assembly type full-ventilation grain discharging integrated device which is conical and comprises a top plate and a bottom plate connected with the top plate, and a consolidation structure and a full-ventilation system are arranged between the top plate and the bottom plate. The bin bottom is further provided with a discharging auxiliary structure in a matched mode. Wherein the top plate is of a frame structure, the minimum unit is a quadrilateral area defined by every two adjacent radial partition plates and circumferential beams, and a sieve pore plate is laid on the top plate and matched with the minimum unit of the top plate. The consolidation structure comprises radial partition plates and circumferential beams, the radial partition plates and the circumferential beams are arranged between the top plate and the bottom plate, the diameters of the circumferential beams are gradually increased from the center of the silo to the wall of the silo, and the circumferential beams and the radial partition plates are welded in a crossed mode to form a grid-shaped structure; the full ventilation system comprises radial partition plates arranged between the top plate and the bottom plate, circumferential beams and ventilation holes, a main air duct is arranged on the center cylinder, and during ventilation operation, air enters the ventilation holes through the main air duct and is dispersed to the position between every two adjacent radial partition plates, and finally enters the bin through the top plate to form the full ventilation system.

The invention discloses a concrete retaining wall and a construction method thereof.The concrete retaining wall comprises a concrete retaining wall body, and at least one reinforcing rib is embedded in the concrete retaining wall body; the decoration layer covers the outer vertical face of the concrete retaining wall body, the decoration layer comprises at least one prefabricated plate, and all the prefabricated plates are continuously or discontinuously installed on the outer vertical face of the concrete retaining wall body from bottom to top in the height direction of the concrete retaining wall body; each prefabricated slab comprises a consolidation layer and a plurality of decoration pieces, the part, not exceeding two parts of the height, of each decoration piece is embedded in the consolidation layer, and the remaining part of each decoration piece can be embedded in the outer vertical face of the concrete retaining wall body; by means of the precast slabs, the bonding strength between the cobblestones and the concrete retaining wall body is enhanced, the problems that in a traditional construction mode, new and old materials are not firmly bonded and are prone to separation and falling off are solved, the decoration and protection effects of the concrete retaining wall are guaranteed, the requirement for high-altitude operation is reduced, the construction difficulty and potential safety hazards are reduced, and the construction cost is saved; and resource waste is avoided.

The utility model discloses an aluminum formwork and cantilever scaffold combined construction structure which comprises a cantilever beam, an aluminum formwork, a fixing piece, a mounting piece, a scaffold, a pull-up structure and a protective net. The inner end of the cantilever beam is fixedly connected with the floor, and the outer end extends out of the shear wall; the aluminum formwork comprises a side formwork and a hole opening formwork. The side formworks are arranged on the inner side and the outer side of the wall body and comprise main formworks and small formworks, and the small formworks correspond to the cantilever beams and are detachably connected with the main formworks; the hole opening template is arranged at the position of the reserved hole; the fixing piece is fixedly arranged on a floor slab and is connected with the cantilever beam; the mounting piece is arranged at the outer end of the cantilever beam; the scaffold is arranged on the cantilever beam; the pull-up structure comprises a limiting rod, a clamping rod and a pull rope. The aluminum template is divided into the main template and the small template, and the corresponding small template is removed when the cantilever beam corresponds to the floor construction, so that the conflict between the side template and the cantilever beam is avoided. During non-corresponding floor construction, the small formwork is connected with the main formwork for normal pouring construction, and construction is easy, convenient and rapid.

The utility model discloses a two-way prestress weight reduction assembly type composite floor slab system. The two-way prestress weight reduction assembly type composite floor slab system comprises a pre-tensioning prestress prefabricated concrete bottom plate, weight reduction blocks, cast-in-place concrete ribs and post-tensioning prestress steel bars. Longitudinal prestressed load-bearing steel bars and transverse distribution steel bars are arranged in the pre-tensioned prestressed precast concrete bottom plate. A concrete reinforcing rib or a steel truss reinforcing rib or a steel and concrete combined structure reinforcing rib is arranged on the concrete bottom plate; the weight reducing blocks are laid on the pre-tensioned pre-stressed precast concrete bottom plate, and the weight reducing blocks are spaced by a certain distance. A plurality of pre-tensioned pre-stressed precast concrete bottom plates are assembled together, and concrete ribs are formed after the weight reducing blocks are cast in place. The prestressed steel bars are post-tensioned in the concrete ribs, and after the concrete reaches the strength, the steel bars are tensioned to form post-tensioned prestressing force to form bonded or unbonded prestressing force. According to the utility model, the bidirectional rigidity of the floor system is consistent, the bidirectional force transmission performance and the bidirectional anti-cracking effect are better, the integrity of the floor system is better, and more steel materials are saved.

A fully bolted anti-buckling brace and a preparation method thereof, belonging to the technical field of building structure engineering. Two groups of end stiffeners and at least two groups of limiting ribs are provided on the core plate, the two groups of end stiffeners are respectively arranged at the two ends of the core plate, and the limiting ribs are arranged between the two groups of end stiffeners along the axial direction of the core plate; an end constraint unit is provided between the end stiffener and the adjacent limiting ribs; a middle constraint unit is provided between each two adjacent limiting ribs, and the upper end of the end constraint unit and the upper end of the middle constraint unit, as well as the lower end of the end constraint unit and the lower end of the middle constraint unit are respectively connected to the corresponding constraint unit cover plate. The present invention is easy to process and transport, reduces the amount of engineering and resource consumption; realizes the core plate to enter plasticity after buckling in multiple sections, and gives full play to its energy consumption capacity; the construction is simple and quick, which improves the work efficiency while ensuring the safety of the structure; avoids the problem of regular maintenance required for traditional concrete supports, and is green and energy-saving.

The invention discloses a construction method suitable for suspended splicing rapid construction of UHPC (Ultra High Performance Concrete) composite beam segments and a construction method thereof, which are applied to connection construction of the composite beam segments consisting of a composite bridge deck slab and a steel main beam, and the composite bridge deck slab at least consists of an upper UHPC bridge deck slab and a lower bridge deck slab steel bottom plate. Welding and connecting a side web plate of the steel main beam, a bottom plate of the steel main beam, a middle web plate of the steel main beam and the bridge deck slab steel bottom plate at the joint of each composite beam section to form an annular welding joint of the composite beam sections; the circumferential welding joints of the adjacent composite beam sections are welded and connected through the PBL steel structure inlaying sections to form a complete closed steel box. The wet joint lagging construction can be realized.

The present invention belongs to the technical field of glass magnesium board, and in particular, is a glass magnesium board installation structure for indoor assembled floor paving, including a straight plate and a dovetail groove, the straight plate is provided with a screw hole inside, the dovetail groove is installed inside the first board surface, the left side of the key is provided with a second board surface, a pad is provided above the mounting plate, a screw is installed inside the screw hole, a limit block is fixed on the left side of the connecting rod, a through hole is provided outside the nut, a positioning hole is provided inside the key, a spring is connected to the right side of the bayonet, and a mounting hole is installed below the square key. Compared with the existing glass magnesium board assembly structure, the glass magnesium board assembly structure is provided with a dovetail groove and a key, which makes assembly convenient and quick, and is provided with a screw, a connecting rod, a limit block and a nut, which makes construction simple and stable, and is also provided with a groove, a square key and a mounting plate, which saves working time and avoids thread drilling.

The utility model discloses a precast concrete component structure, which relates to the technical field of building construction and comprises a first precast concrete component and a second precast concrete component. The first concrete prefabricated part and the second concrete prefabricated part are movably connected through a connecting piece; the first concrete prefabricated part rotates along the periphery of the second concrete prefabricated part through the connecting piece and forms an included angle a, wherein a is larger than or equal to 0 degree and smaller than or equal to 180 degrees. According to the concrete prefabricated part structure, the first concrete prefabricated part and the second concrete prefabricated part are connected together through the connecting piece, the position relation between the first concrete prefabricated part and the second concrete prefabricated part can be adjusted, later installation operation is facilitated, the construction process becomes simple and convenient, and the construction efficiency is improved. The labor intensity is further reduced and the working efficiency is improved.

The utility model discloses a novel reinforced concrete gate tower, which relates to the technical field of buildings and comprises double stand columns, fixing components arranged at the bottoms of the double stand columns, mounting components arranged at the top ends of the double stand columns, reinforcing components arranged on the upper portions of the mounting components, supporting components arranged on the double stand columns, and the supporting components arranged on the lower portions of the mounting components. The double stand columns serve as main bearing structures, concrete is poured in the double stand columns, and the strength and stability of the stand columns are remarkably enhanced. Through the synergistic effect of the supporting assembly, the mounting assembly and the reinforcing assembly, a multi-layer and multi-direction supporting system is formed, and the overall stability of the gate tower is effectively improved. The supporting inclined rods are obliquely connected with the double stand columns and the supporting transverse rods, so that the anti-overturning capacity is enhanced, and the gate tower is more stable under the action of external factors such as wind power. Due to the design of the fixing assemblies, especially the arrangement of the fixing needles, it is ensured that the double stand columns are firmly fixed to the ground, and the collapse risk caused by an unstable foundation or external force is reduced.

A kind of construction method of super high layer high altitude large-span cantilever concrete structure, including the following steps: step one, the structure optimization and construction drawing design of cantilever concrete structure;Step two, the deepening design of measure support, measure support includes support frame and hanging basket;Step three, main body first construction;Step four, precast concrete beam section field prefabrication;Step five, the manufacture and installation of support frame;Step six: the hoisting of precast concrete beam section;Step seven: the construction of cast-in-place concrete section;Step eight: the installation of upper pull rod and lower support rod;Step nine: in turn remove hanging basket, hanging platform and support frame.The present application solves the technical problems of complex construction technology, long construction period and high construction risk of large-span cantilever structure.

The invention provides a lap joint module for building construction, and relates to the technical field of building construction. The lap joint module comprises a lap joint longitudinal bearing beam mold which comprises a first steel structure truss and a pouring mold, the first steel structure truss is used for being arranged in the longitudinal direction of a house body, and the pouring mold is arranged on the upper side of the first steel structure truss; wherein connecting holes are formed in the two ends of the bottom side of the first steel structure truss; the lap joint transverse bearing beam mold comprises a second steel structure truss, a first supporting frame and a second supporting frame, the second steel structure truss is used for being arranged in the transverse direction of the house body, the first supporting frame and the second supporting frame are located at the two ends of the bottom side of the second steel structure truss correspondingly, and the first supporting frame is arranged on the side edge of the first steel structure truss; the second supporting frame is used for being externally connected with a bearing mold of the house body. According to the lap joint module, auxiliary supporting of the floor concrete mold is achieved, and the structural stability of the floor concrete mold is greatly improved.

The invention discloses a modular pavement drainage system for a gentle slope section of a wide road and a setting method, and belongs to the technical field of drainage engineering, the modular pavement drainage system comprises a middle lane drainage structure and a transverse drainage pipe; the transverse drainage pipe is located below the pavement cushion layer and perpendicular to the route direction of the road, one end of the transverse drainage pipe is connected with the middle lane drainage structure, and the other end is connected with a drainage ditch or an urban pipe network of the embankment; the middle lane drainage structure is located between the pavement of the middle lane of the half-width road of the wide road and the transverse drainage pipe, and the lower portion of the middle lane drainage structure is communicated with the transverse drainage pipe. The method has the beneficial effects that the drainage facility is arranged on the middle lane, a single long runoff path of the wide road surface is cut off, and the original drainage length of a single 4-5 lane is converted into the drainage length of a 2-3 lane, so that the retention time of rainwater on the road surface can be remarkably shortened, the drainage efficiency of the wide road surface is improved, and the drainage effect of the wide road surface is improved. The water film thickness caused by road surface runoff is reduced, and the driving safety in rainy days is improved.

The invention discloses a common concrete and ultra-high performance concrete interface bonding treatment method. A common concrete layer, an ultra-high performance concrete layer and twisted steel are included. The common concrete layer is subjected to chiseling through a chiseling machine, cross grooves are carved through a grooving machine, punching is conducted, twisted steel is implanted, and the ultra-high-performance concrete layer is poured. The construction is simple and convenient, and the bonding strength of the bonding surface can be effectively improved.

The utility model discloses a fixing structure of a gypsum keel, which belongs to the field of keels for decoration, and is characterized in that a crossed screw rod fixing piece, a crossed fixing piece, an L-shaped fixing piece, an end part fixing piece and a butt joint fixing piece are matched with a gypsum keel structure compared with a traditional connecting piece; on the premise that the installation contact area and the stress area are guaranteed, the overall weight is reduced in cooperation with the gypsum keel. The device mainly comprises a gypsum keel, a crossed screw rod fixing piece and a crossed fixing piece, the crossed screw rod fixing piece and the crossed fixing piece each comprise a door-shaped frame body, extending lug plates are symmetrically arranged on the edges of the two sides of the door-shaped frame body of the crossed screw rod fixing piece and the door-shaped frame body of the crossed fixing piece, and gypsum keel fixing strips are arranged at the bottoms of the extending lug plates. Gypsum keel fixing strips are symmetrically arranged on the inner side of the door-shaped frame body of the fork screw fixing piece and the inner side of the door-shaped frame body of the cross fixing piece. The gypsum board fixing device is mainly used for fixing gypsum boards in decoration.

The invention discloses a port channel slope protection structure which comprises a slope body which comprises an upper slope platform, a slope surface and a lower slope platform. The slope surface protection plates are arranged on the upslope platform and the slope surface in a step shape, the platform of the slope surface protection plate at the highest step is parallel to the upslope platform, and the ladder section of the slope surface protection plate at the lowest step is located at the bottommost part of the slope surface; the bench of any step of slope protection plate is located on the slope; the first water drainage channel comprises an inclined water groove formed in the slope protection plate and a horizontal water groove formed in the downhill platform through an anti-collision groove; a plurality of water seepage holes are formed in the surface of the inclined water tank, the inclined water tank is communicated with the horizontal water tank, and a water outlet is formed in the end part of the horizontal water tank; wherein a plurality of connecting inserting openings are formed in the bottom of the platform of any step of slope surface protection plate, a plurality of anchor rods are arranged on the upslope platform and the slope surface, one section of each anchor rod is inserted into the slope body, and the other end of each anchor rod extends into the corresponding connecting inserting opening. The slope protection structure can be effectively prevented from being scoured by water flow.

The utility model relates to an equal-strength steel truss reinforcing structure of a structural damage PC box girder, and belongs to the technical field of building structure reinforcing. Comprising a steel truss with the same strength as a PC box girder, and the steel truss is of a cuboid space steel truss structure; a plane truss is arranged on the face, opposite to the steel truss, of the web plate, and the plane truss and the steel truss are fixed to the two sides of the web plate through opposite-pull screws. The steel truss is located on the inner side or the outer side of the web. Anchor bolts and steel gaskets are further arranged on the opposite-pull screws to reinforce and fix the steel trusses and the plane trusses and anchor the opposite-pull screws. And the opposite-pull screws are arranged at the joints of the chord members in the steel truss. A steel-concrete transition connecting section is arranged at the end part of the steel truss and is fixed through an opposite-pull screw rod; and the number of the opposite-pull screws on the transition connecting section is determined according to the tensile force borne by the steel truss chord member and the tensile force which can be borne by a single opposite-pull screw. The equal-strength steel trusses are arranged on the box girder in the damaged area, and meanwhile small original structure damage and a strong reinforcing effect are guaranteed.

The invention discloses a green lossless reinforcing method for an outer wall composite layer. The green lossless reinforcing method comprises the following steps that S1, materials are prepared; s2, wall surface treatment; s3, pasting the fiber cloth; s4, performing multi-layer reinforcement treatment; step S5, curing and curing; s6, surface protection treatment which is green and environment-friendly: the adopted green and environment-friendly binder has the characteristic of low VOC (volatile organic compound) emission, so that the pollution to the environment is reduced; in the construction process, large-scale dismantling or punching operation does not need to be carried out on the wall, generation of construction waste is avoided, the energy-saving and environment-friendly development concept of modern buildings is met, and lossless reinforcement is achieved; the wall is reinforced in the mode that fiber cloth is pasted on the surface, and the original structural integrity of the wall is reserved to the maximum extent; the integral stability of the building is not influenced, the use function and the space layout in the building are not interfered, and the method is suitable for reinforcing and repairing engineering of various existing building outer walls.

The utility model relates to the technical field of steel structure assembly, and discloses an assembly type steel structure quick connecting assembly which comprises a first supporting cylinder, the outer wall of the first supporting cylinder is fixedly connected with a fixing plate, the interior of the fixing plate is fixedly connected with a fixing rod, and the outer wall of the fixing rod is rotationally connected with a first threaded rod. The outer wall of the first threaded rod is slidably connected with a connecting plate, a limiting groove is formed in the connecting plate, the outer wall of the first threaded rod is in threaded connection with a first rotating block, and fixing assemblies are arranged in the fixing block and the first supporting cylinder. According to the connecting device, the first threaded rod is driven to slide in the connecting plate, and the first rotating block is driven to rotate on the outer wall of the connecting plate, so that the connecting plate is limited and fixed on the outer wall of the first supporting cylinder, quick connection of steel structural members is realized, the construction period is greatly shortened, and the construction process is simpler, more convenient and quicker; and tighter and more accurate connection between the steel structural members is ensured.

The invention belongs to the field of horizontal directional drilling, and particularly relates to flotation reducing slurry, a preparation method thereof and a flotation reducing method. The preparation method of the flotation reducing slurry comprises the steps that the target density and the target half-life period of the flotation reducing slurry are determined, and in the target half-life period, the density of the flotation reducing slurry is stable; adjusting the proportion of the floating slurry to reach the target density and the target half-life period; and stirring and foaming the proportioned floating reducing slurry at a stirring speed of 2000 revolutions per minute to obtain the floating reducing slurry with the target density and the target half-life period. When the horizontal directional drilling pipeline passes through and drags back, a more accurate floating effect can be obtained, the construction period is remarkably shortened, and the cost is reduced.

The utility model belongs to the technical field of building construction, and particularly relates to an embedded pipe for conveying basement constructional column concrete. The pipe orifice section is hollow; the elephant trunk section is hollow inside, the elephant trunk section is fixedly installed below the pipe opening section, a channel for concrete to flow is formed by the elephant trunk section and the pipe opening section, and the inner contour line of the bottom of the pipe opening section falls on the inner contour line of the top of the elephant trunk section; and the pipe clamp is arranged outside the articulated chute section. Compared with the prior art, the concrete conveying chute has the beneficial effects that the concrete conveying chute is formed by the pipeline, so that concrete is quickly conveyed to a basement, the concrete conveying time is shortened, and the labor cost is also reduced; the pipe orifice section is pre-buried in a basement top plate, and the articulated chute section is fixed on a structural column by using a pipe clamp and a screw, so that the articulated chute section is stable and can be repeatedly used for multiple times, rapid conveying is performed, the on-site waiting time of concrete is shortened, the concrete pouring quality is favorably improved, and the construction difficulty is reduced.

The invention belongs to the technical field of materials, and particularly relates to a polyolefin composite modified material and a preparation method and application thereof. The polyolefin composite modified material comprises the following components in parts by mass: 60-80 parts of a polyolefin matrix, 18-35 parts of a reinforced composite material and 5 parts of a composite additive, the sum of the mass parts of the polyolefin matrix, the reinforced composite material and the compound additive is 100; wherein the reinforced composite material is composed of glass fibers, carbon fibers and maleic anhydride grafted polyethylene; the compound additive comprises a flame retardant, a lubricant and an antioxidant. The polyolefin composite modified material has excellent mechanical properties and chemical stability, high tensile strength and good corrosion resistance and wear resistance, and can meet the repair requirements under complex working conditions.

The application discloses a bottom mould floor support plate construction technology suitable for steel-concrete composite beam cast-in-situ bridge deck plate construction and belongs to the field of cast-in-situ concrete component form construction, which can solve the problems of difficult installation of the bottom mould of the steel-concrete composite beam cast-in-situ bridge deck plate, large waste of building materials, cost increase and slow construction period. According to the size of the floor support plate, the application performs line laying at a reinforcing position of the top plate of the steel beam, performs installation and connection, straightens, flattens, connects and fixes the arranged floor support plate. The connection between the floor support plates is reinforced by adding fillet welding. The two sides of the steel-concrete composite beam are each provided with a 70cm cantilever arm, and the concrete thickness is 20cm. The cantilever arm part of the side beam is constructed by using a hanging form method, a steel cantilever beam is arranged on the top of the steel beam to hang up the steel bar truss floor support plate bottom mould. After the floor support plate is paved, the steel bars are bound, and the bridge deck plate is poured. The steel bar truss floor support plate satisfies various loads such as structure and construction, can avoid construction procedures such as formwork erection, formwork removal, support system erection and removal and the like, and improves construction operation efficiency.

The utility model discloses an assembly type Tangjia, relate to ancient building technical field, including ridge tile and the rainproof barrel tile of carding on ridge tile, the ridge tile is inverted U type, and the top plate of ridge tile is seted up and is poured into the hole, and the both sides board between ridge tile fixedly installed has the connecting plate, and the middle part of both sides board lower extreme of ridge tile all is seted up and has the avoidance slot, the rainproof barrel tile includes semicircular tile body, and the length of tile body is same with ridge tile, and one end of tile body is equipped with the rainproof slot I of recessing inwards, and the other end fixedly installed has the assembly tile platform, and the outer diameter of assembly tile platform is not greater than the inner diameter of tile body, and the middle part of assembly tile platform is equipped with the rainproof slot II of cooperation with rainproof slot I. This assembly type Tangjia adopts assembly type design, only needs to card ridge tile on roof ridge in proper order when constructing, then carries out concrete pouring, finally covers rainproof barrel tile, can, and the construction process is simple and quick, has improved construction efficiency, has reduced construction cost.