273results about How to "Fast construction" patented technology

The invention relates to the field of constructional engineering, and discloses an assembly type reinforced concrete-steel structure foundation pit supporting system convenient to disassemble and a construction technology, and the assembly type reinforced concrete-steel structure foundation pit supporting system comprises a top beam, a waist beam, a supporting pile and an inner supporting system; the inner supporting system is formed by assembling a standard steel-concrete beam section main support and a steel member auxiliary support in cooperation with a jack adjusting system. The invention further provides a new system on-site assembly construction process, namely detailed steps of assembly construction from the uppermost layer to the lower layer step by step. The fabricated structure integrates the advantages of two fabricated structures, is suitable for foundation pit supporting with large stress and strict deformation control, and has the advantages of being high in construction speed, short in construction period, low in construction cost, convenient to dismantle and capable of completely recycling most of inner supporting components compared with a traditional cast-in-place steel-concrete foundation pit supporting system.

The invention discloses a concrete modular integrated building connecting system which comprises connection of a plurality of concrete modular box bodies, each concrete modular box body is composed of a prefabricated top plate, a prefabricated bottom plate, a prefabricated beam, a prefabricated shear wall and a prefabricated partition wall, and each concrete modular box body is formed through integral pouring; a reserved post-pouring area is arranged at the joint of every two adjacent box components, and notches are formed in the prefabricated top plates; connecting steel bars are in lap joint with the notches, and concrete post-pouring is conducted after the steel bars are in lap joint; u-shaped notches are formed in the prefabricated beams, upper and lower lap joint steel bars are laid at the U-shaped notches, and the two half sections of the prefabricated beams are connected into a whole after concrete is cast in place; a linear vertical notch is formed in the prefabricated shear wall between every two adjacent box bodies, the rib bodies of the wall bodies are connected in the linear notches, all the box bodies are stably connected through lap joint of the reinforcing steel bars and cast-in-place concrete of the cavities, and the prefabricated shear wall is suitable for high-rise buildings, can reduce the workload of a construction site and has good mechanical performance and anti-seismic performance.

The utility model discloses a reinforcing device, which relates to the technical field of structural engineering, and comprises a reinforcing plate, fixed end anchorage devices and a midspan back shore mechanism, the two ends of the reinforcing plate are respectively connected with a reinforced member through the fixed end anchorage devices, the middle part of the reinforcing plate is connected with the reinforced member through the midspan back shore mechanism, and the middle part of the reinforcing plate is connected with the reinforced member through the midspan back shore mechanism. The midspan jacking mechanism is used for conducting prestress tensioning on the reinforcing plate. The reinforcing device is simple in structure, high in operability and capable of improving the ultimate strength and ductility of a reinforced component.

A new and old bridge widening structure adapting to multi-directional displacement belongs to bridge construction technology; it includes an anchoring structure and a block simply supported steel plate beam spanning structure arranged on the new and old bridges; expansion joints are arranged between the block simply supported steel plate beam spanning structures; the anchoring structure is an inverted L-shaped steel or welded steel plate with a comb-shaped tooth plate; a supporting bracket device is arranged at the lower part of the anchoring structure; the simply supported steel plate beam spanning structure includes a comb-shaped tooth plate steel plate with comb-shaped tooth plates matching the anchoring structure at both ends, the comb-shaped tooth plate steel plate is provided with two transverse steel ribs and a stiffening steel plate along the bridge direction, and a movable support mechanism is arranged under the two transverse steel ribs. The present invention adopts a longitudinal modular block simply supported steel plate beam spanning structure and a support system suitable for multi-directional displacement, which can adapt to the vertical flexural deformation difference and longitudinal deformation, transverse deformation, torsional deformation of curved beams and single-support beams caused by the different stiffness of the new and old bridges, and can be quickly constructed and replaced.

The invention belongs to the field of roadway support utilization, and particularly relates to a method for improving the bearing capacity of two sides by converting stress of the two sides into surrounding rock of the two sides. The core is that the vertical pressure of the top plate is transferred to the horizontal direction of the two sides, the confining pressure of the two sides is increased, and the bearing capacity of the coal rock mass is increased, so that the bearing capacity of the two sides is improved, the roadway stability is improved, and surrounding rock deformation is controlled. According to the method, U-shaped steel is used as a whole, three-section splicing is adopted, the U-shaped steel support is high in strength and stability and meanwhile has the advantages of being convenient to carry and operate, the junction is connected and fixed through a hoop, the sliding pressure relief effect can be achieved, and the safety of roadway supporting is guaranteed. Anchor cable channel steel is used for reinforcing and stabilizing the support, high-strength slotted steel pipes are driven outside anchor cable drill holes in the two sides to reduce shearing force borne by anchor cables, the support is more stable, the channel steel is arranged in the axial direction of a roadway, point stress of the sides is conveniently changed into face stress, the roadway sides can be stabilized in a larger range, and local point stress concentration is avoided.

The present application relates to a green and low-carbon functional inorganic rock coating artistic effect paint and a preparation method thereof, belonging to the field of coating technology. The present invention modifies the waterborne epoxy resin emulsion and introduces amino calcium carbonate and modified carboxymethyl cellulose at the same time. The multi-components work together to effectively improve the adhesion level and obtain good salt spray resistance and aging resistance.

The invention discloses an integrated assembly type steel structure outer envelope system which comprises a steel structure body and further comprises two coamings located on the inner side and the outer side of the steel structure body respectively. The outer decorative plate is arranged on the surface of the surrounding plate on the outer side of the steel structure main body; the buffer layer is adhered to the surface of the coaming on the inner side of the steel structure main body; and the inner decorative plate is arranged on the side, away from the steel structure body, of the buffer layer. According to the integrated assembly type steel structure outer envelope system, the inner decorative plate, the outer decorative plate, the basic plate, the heat preservation cotton and the like are integrated together, and after the integrated assembly type steel structure outer envelope system is assembled on the steel structure body, integrity is high, the inner decorative plate and the outer decorative plate are not prone to falling off, and safety is good.

The invention relates to the technical field of coatings, in particular to a photo-thermal hydrophobic coating and application thereof on an asphalt pavement. The photo-thermal hydrophobic coating is prepared from the following raw materials in parts by weight: 1 to 1.5 parts of multiwalled carbon nanotubes, 3 to 4 parts of titanium dioxide, 6 to 7 parts of lauric acid and 100 parts of absolute ethyl alcohol. The anti-icing coating with a rough surface is constructed on the road surface by using the multi-walled carbon nanotubes, titanium dioxide and lauric acid, the anti-icing coating has hydrophobic anti-icing performance and photo-thermal anti-icing performance at the same time, and the effects of inhibiting the formation of road icing and accelerating the thawing of the road icing can be achieved by fully utilizing solar energy. In an extremely low-temperature environment, the coating still can obviously delay the icing of water on the surface of the coating, and has good anti-icing performance; under the condition of weak light, the hydrophobicity of the coating can still play an ice inhibiting role, and all-weather anti-icing and deicing are achieved.

The invention provides a temperature stress releasing structure for a super-long steel structure building, the super-long steel structure building comprises a frame structure formed by columns and beams, the temperature stress releasing structure comprises a sliding support assembly arranged between the columns and the beams in the length direction of the frame structure, one end of each beam is in sliding fit with the sliding support assembly, and the other end of each beam is in sliding fit with the sliding support assembly. The other end of the beam is connected with an adjacent steel column, and the sliding support assembly comprises a cylinder in sliding fit with the beam. The material can generate the phenomenon of thermal expansion and cold contraction when the temperature changes, at the high temperature, the material expands and shows tension force, the distance between the beam used for releasing the temperature stress and the adjacent steel column becomes small, at the low temperature, the material shrinks and shows shrinkage force, and the distance between the beam used for releasing the temperature stress and the adjacent steel column becomes large. The internal temperature stress of the material is remarkable, the temperature stress is directly released through the sliding support assembly, the effect is remarkable, more convenience is achieved, and additional operation is not needed.

The invention discloses a building facade aluminum plate decoration and heat preservation integrated plate connecting joint and a mounting method thereof.The building facade aluminum plate decoration and heat preservation integrated plate connecting joint comprises a base layer wall body and a heat preservation plate, the heat preservation plate comprises an aluminum plate frame, and a heat preservation rock wool layer and a cement-based roll layer are arranged in the aluminum plate frame; one end of each insulation board is provided with a joggling part, the other end of each insulation board is provided with a riveting part matched with the joggling part, an anchoring groove is formed after the joggling parts and the riveting parts of the two insulation boards are matched with each other, the insulation boards are bonded on the base layer wall body, and the anchoring parts are matched with the anchoring groove. The anchoring piece is anchored into the base layer wall body through the anchoring groove. The connecting mode and the fixing mode of the insulation board are adjusted, male and female groove type connection of the joggling part and the riveting part is used for connection, and the external member is adopted for protection, so that deformation caused by collision in the transportation and installation process is avoided, the decoration and insulation integrated board of the facade aluminum board can be conveniently transported, and the transportation efficiency is improved. And in the application of high-rise buildings, the installation is more convenient, and the durability is better.

The invention discloses a construction method of a large-volume cast-in-place terrazzo ground structure of a leaf-shaped partition area, which comprises the following steps: carrying out three-dimensional modeling on a to-be-poured terrazzo ground, segmenting a construction unit and a construction area, and dividing and encircling leaf-shaped partition strips; manufacturing a corresponding template according to the shape of the partition strip intercepted in each construction area; partition strips are installed on the outer side of the formwork along an outer frame of the formwork; in this way, each floor, in particular a terrazzo floor, is constructed. According to the method, after BIM modeling, the large-size cast-in-place terrazzo ground is subjected to unitized labor division and then partitioned, so that the large-size ground can be subjected to sheet construction; in addition, the construction area is arranged, so that the leaf-shaped area can be separated, the formworks can be manufactured in batches, and splicing arrangement and rapid construction of field partition strips are facilitated; by arranging the parting seams on the millstone ground, the extension reserve of ground deformation in the later period can be guaranteed; in addition, through the arrangement of the cutting strips, it is guaranteed that different types of grounds are connected.

The utility model relates to the technical field of road maintenance and repair, in particular to a pavement crack repairing device for traffic engineering, which comprises a rack, the rack is an assembly main body of the repairing device, a case is fixedly mounted at the top of the rack, a handle is mounted at the upper part of the rear side of the case, and the handle is fixedly mounted on the rack. Universal wheels are installed at the four corners of the bottom of the rack, and brake pieces are arranged in the universal wheels. The device further comprises a stirring bin; a stirring bin for stirring repairing slurry is arranged on the upper portion of the machine box, an opening is formed in the top of the stirring bin, a section of interval space is arranged on the front side between the machine frame and the machine box, and the motor is fixedly installed on the plate face, where the interval space is located, of the machine frame. According to the utility model, the motor drives the stirring frame to uniformly stir repairing slurry in the stirring bin, and the slurry pump is utilized to directly fill the uniformly mixed slurry into the pavement gap to be repaired, so that the operation process is simplified, and the construction speed of pavement gap repairing is accelerated.

The utility model provides a quick greening structure suitable for a plateau slag piled body, which comprises a protective structure positioned at a slope toe of the slag piled body, an outer side guard formed by splicing reinforced concrete prefabricated members left and right is arranged on the side, close to a river, of the protective structure, and a planting groove is formed by the outer side guard and the top surface of the protective structure; a composite geomembrane is laid on the inner surface of the planting groove, and the composite geomembrane is filled with planting soil; the reinforced concrete prefabricated part comprises a front wall soil retaining section, a rear wall stabilizing section and a middle connecting section used for connecting the front wall soil retaining section and the rear wall stabilizing section. The front wall soil retaining section, the rear wall stabilizing section and the middle connecting section are I-shaped, and the front wall soil retaining section is thin-walled; the front wall soil retaining section is located on the lower side of the slope, and the rear wall stabilizing section is located on the upper side of the slope. At least the rear wall stabilizing section is embedded into the planting soil. The rapid greening structure is high in construction speed, good in greening effect in the plateau area, high in safety, low in investment, durable and reliable in structure and good in greening effect.

The invention relates to a deep foundation pit assembly type ladder cage system which comprises a deep foundation pit, an inner supporting beam, a supporting piece and an assembly type ladder cage. A plurality of layers of inner supporting beams are arranged and fixed to the inner wall of the deep foundation pit, the supporting pieces are fixedly installed on the multiple inner supporting beams on the same layer, and the assembly type ladder cage located on the inner supporting beams is fixedly connected with the supporting pieces. A plurality of assembly type ladder cages are fixedly spliced between the upper and lower adjacent layers of inner supporting beams; a plurality of assembled ladder cages are also fixedly spliced between the bottom surface of the deep foundation pit and the lowermost inner supporting beam; the assembly type ladder cage system is erected while being excavated in the excavation process of the deep foundation pit, and all the assembly type ladder cages form a vertical channel after being erected. The invention further relates to a construction method of the deep foundation pit fabricated ladder cage system, the fabricated ladder cage serves as a vertical channel, an auxiliary installation tool does not need to be erected, erecting in the deep foundation pit excavation process is achieved, the installation speed is increased, and the construction method belongs to the technical field of deep foundation pit construction.

The invention discloses an inclined shaft built-in type skewback structure and a construction method thereof, the inclined shaft built-in type skewback structure comprises two inclined shaft foundations and a straining beam arranged between the two inclined shaft foundations, and the two ends of the straining beam are fixedly connected with the inclined shaft foundations respectively; the section shape of the inclined shaft foundation is a gate-type section with an arc-shaped top; pier bases are symmetrically arranged on the two inclined shaft foundations; the inclined shaft foundation and the pier base are both partially embedded and fixed in a rock mass; the inclined shaft foundation is obliquely arranged, and the center line is parallel to the arch axis of the arch bridge. The problems that in an existing skewback foundation form, the earthwork excavation volume is large, and skewback foundation stress is not definite are solved; the construction efficiency of the skewback structure is effectively improved, and rapid construction of the arch bridge skewback structure at the canyon in the mountainous area is achieved.

The invention discloses an integral floating construction method for a fore shaft steel pipe pile cofferdam and a drilling platform, which is suitable for the construction of a bridge pile foundation deeply buried in bare rock, and comprises the following steps of: 1, processing the fore shaft steel pipe pile cofferdam capable of floating and the drilling platform which has buoyancy and takes a steel casing as a support on a dock; secondly, water is injected into the dock to float the machined fore shaft steel pipe pile cofferdam and the drilling platform which can be transported in a floating mode, and the floating fore shaft steel pipe pile cofferdam and the drilling platform are dragged to a construction site; thirdly, the floating fore shaft steel pipe pile cofferdam and the drilling platform are positioned and sunk to the leveled bare rock; fourthly, the posture of the fore shaft steel pipe pile cofferdam is adjusted, bottom sealing concrete is poured, and pile foundation construction is conducted after the bottom sealing concrete is poured; and fifthly, after pile foundation construction is completed, cofferdam structure water pumping is carried out, after water pumping, bearing platform and other main body structure construction is carried out, and after the main body structure goes out of water, water returning is carried out layer by layer in the cofferdam, and supports are dismantled.

The utility model discloses a pipeline butt joint structure and a movable dust removal system, and belongs to the technical field of dust removal equipment. The ventilation pipeline butt joint structure comprises a first connecting pipe and a second connecting pipe, the ends, close to each other, of the two connecting pipes are provided with a first butt joint opening and a second butt joint opening respectively, an installation gap is reserved between the first butt joint opening and the second butt joint opening, and a sealing belt is arranged at the installation gap. During air suction and dust removal, negative pressure is generated at the mounting gap, the sealing belt is forced to block the mounting gap, and the sealing effect on the gap is achieved. According to the utility model, through the mutual matching of the mounting gap and the sealing belt, the sealing effect is ensured, the construction operation at the pipeline butt joint is more convenient and faster, and the on-site rapid construction operation is facilitated; meanwhile, the dust removal system is simple in structure and low in cost.

The utility model relates to the technical field of building construction, and particularly discloses a steel-reinforced concrete joint restraining device. The steel-reinforced concrete joint restraining device comprises joint steel plate hoops, the joint steel plate hoops are parallel to the transverse steel members, the joint steel plate hoops are welded between the transverse steel members at the same section steel member joint, and the welded joint steel plate hoops form a hoop-shaped structure. The node steel plate hoop is made of a strip-shaped steel plate, and the node steel plate hoop and the profile steel component are machined together in a factory. According to the utility model, the defects of difficulty in mounting the constraint steel bars, large field manufacturing and welding workload and substandard protection layer caused by node steel bar deviation in the traditional steel reinforced concrete construction are effectively overcome.

The utility model relates to the technical field of building pouring grouting molds, in particular to a special tool for secondary grouting of an equipment foundation, which comprises a lower plate, an upper plate and a fastener, an upper clamping groove is arranged on the upper plate, a lower clamping groove is arranged on the lower plate, the upper clamping groove is clamped with the lower clamping groove, and the upper plate and the lower plate form a frame structure. A buckle is buckled at the joint of the upper plate and the lower plate; the special tool for secondary grouting of the equipment foundation is made of aluminum alloy pressing plate materials, has the advantage of being capable of being reused, is stable and reliable after being connected by adopting the special buckles for connection, and has the advantages of being simple in construction procedure, rapid in construction and capable of shortening the construction period.

The utility model relates to the field of valve actuators, in particular to a quick connecting device for a valve actuator, which comprises an actuator, positioning pin shafts, an elastic clamp spring, a valve and a flange plate, the four positioning pin shafts with the same size are mounted on the side wall of the bottom of the actuator and can be clamped into the flange plate, so that the lower end face of the actuator is tightly attached to the upper end face of the flange plate; an elastic clamping spring is installed at the position, clamped into the lower end of the flange plate, of the positioning pin shaft.

The invention provides an epoxy modified cement-based material, the epoxy modified cement-based material comprises an organic phase structure and inorganic crystals, and the inorganic crystals are radially distributed on the surface of the organic phase structure; the organic phase structure is a spherical or sphere-like structure with the diameter of 3-15 microns; the inorganic crystal is of a needle-shaped, rod-shaped or sheet-shaped structure with the length being 0.3-3 microns and the diameter being 0.05-0.5 microns. The epoxy modified cement-based material disclosed by the invention shows good adhesion and dispersion resistance under water or in a humid environment, can realize rapid underwater construction, and keeps stable performance for a long time under harsh conditions such as a marine environment and a humid environment; the engineering requirements of multiple fields such as building structure repairing, underwater repairing, rapid first-aid repair, ocean protection and road and bridge engineering are met, and the integration of high strength, high toughness, strong interface bonding and long-acting durability is realized.

The present application relates to the technical field of tunnel construction, in particular to a tunnel shield support non-blasting excavation method and equipment, the excavation method comprises four steps of drilling and pumping, concrete solidification, excavation of the surrounding rock and waterproof treatment, the method forms a concrete closed-loop shield support system by drilling and pumping in advance, a stable closed-loop support structure is formed before the excavation of the surrounding rock, effectively preventing the large deformation of soft rock and the rock burst phenomenon caused by stress release in hard rock during tunnel excavation; the system anchor rod, concrete spraying construction and explosive blasting process in the traditional support system are cancelled, which is safe and reliable, and has high economic benefits. The excavation equipment shares a propulsion mechanism through the spiral drill module and the reverse circulation down-the-hole drill module, without the need for separate propulsion devices for the two drill bits, the feed is achieved by driving the arc-shaped limiting piece with a chain, and the limiting block, the worm and the ring worm gear transmission self-locking function are matched to ensure the positioning accuracy of the drill bit during drilling, and to reduce the complexity of the equipment structure and the purchase and maintenance cost.

This utility model relates to the field of building construction technology, and in particular to a rapid sealing device for exterior wall openings. This utility model uses inner and outer templates to seal the inner and outer sides of the opening. Tie bolts are used to connect the inner and outer templates, ensuring a tight fit between them. A baffle and a pouring hopper are installed on the outer template. During concrete pouring, concrete is poured into the opening through the pouring hopper. When the opening is almost full, the pouring hopper and baffle are pulled upwards, gradually reducing the area between the lower end of the pouring hopper and the top of the opening, causing the baffle to gradually seal the top of the opening until it is completely filled. The pouring hopper is then pulled to a position above the opening, and the baffle completely seals the outer side of the opening. Using this sealing device, the area of ​​the baffle covering the outer side of the opening can be adjusted while pouring, thus enabling rapid construction.

A protective structure for anti-buoyancy and scour protection of a riverbed tunnel includes a riverbed tunnel, a reinforcement layer, a protective layer, and a backfill layer. The reinforcement layer is installed along the extension direction of the riverbed tunnel, with its bottom extending into the arch of the tunnel and its width exceeding the two arches of the tunnel. The protective layer is installed above the reinforcement layer along the extension direction of the riverbed tunnel, and the backfill layer is installed above the protective layer, with its upper surface flush with the original riverbed elevation. The protective layer includes a protective plate and structural beams. The protective plate extends along the extension direction of the riverbed tunnel and its width is greater than that of the reinforcement layer. The structural beams are located on both sides of the bottom of the protective plate and embedded in the riverbed cushion layer. The riverbed tunnel is constructed from special tunnel segments, in which the diameter of the main reinforcing bars is larger than that of ordinary tunnel segments in other tunnel sections. This invention reinforces the riverbed soil and increases soil pressure, achieving anti-buoyancy and anti-scour capabilities during the construction and operation of the riverbed tunnel, ensuring safety.

This invention provides a construction method for an ecological open channel system in urban streets and alleys, including steps such as constructing a sedimentation and filtration system, constructing a rainwater and sewage diversion system, and constructing a water resource collection system. This invention can achieve multiple benefits, including reducing urban flooding, improving the urban microclimate, and enhancing the urban landscape.

The invention relates to the technical field of mine construction, and discloses a fluid filling construction method which comprises the following steps: mounting a framework on a roadway of a pre-filled stope opening; a plurality of clamping grooves are formed in the framework, the clamping grooves abut against the roadway wall through the framework, irregular gaps are formed between the clamping grooves and the roadway wall, and plate inserting openings are formed in the clamping grooves; the gap is filled with liquid A and liquid B through the plate inserting opening, and the liquid A and the liquid B are mixed in the gap to form a filling body; installing an insertion plate on the insertion plate opening to prevent the filling body from overflowing from the gap; and after the filling body is solidified, the framework is detached and recycled, and fluid filling construction is completed. The construction technology method is simple, easy to operate, efficient, convenient, low in cost and particularly suitable for frequently-filled ore bodies, one-time input and repeated use are achieved, and the requirement for stope filling is met.

The utility model discloses a hole-forming and ash-filling integrated machine for lime pile construction, which comprises a crawler-type chassis used for walking on the ground, and a cab is arranged at the front end of the crawler-type chassis; the lime hopper is arranged on the crawler-type chassis and located behind the cab; the discharging opening is formed in the lower end of the lime hopper, the opening end of the discharging opening faces and is provided with a lime discharging nozzle, and an electromagnetic valve is arranged in the lime discharging nozzle; the suspension is horizontally arranged at the front end of the crawler-type chassis; the pore-forming pile pipe is vertically connected to the front end of the suspension in a sliding manner; and the vertical hydraulic cylinder is arranged on the suspension frame and used for controlling the hole-forming pile pipe to vertically slide. By arranging the construction machine integrating hole forming and ash filling, continuous hole forming and ash filling of the lime pile can be achieved, the construction technology is more continuous, the construction efficiency is improved, meanwhile, stable vertical movement of a hole forming pile pipe can be guaranteed, the hole forming quality is guaranteed, and the construction efficiency is improved. The method is used for achieving efficient, high-quality and full-mechanical construction of a large number of rows of lime piles.

A foundation pit slope support fixing system and a fixing method thereof, the support fixing system comprising a fixing device and a drilling device; the fixing device comprising an anchoring body and an anchor cable, wherein the anchoring body comprises a conical anchor head, one end of the anchor cable is rotationally connected with the rear side of the anchor head, the drilling device comprising a fixing frame and a guide plate on the upper side of the fixing frame, a driving box is slidably arranged on the guide plate, a hollow drill cylinder penetrating through front and back is rotationally arranged on the driving box, the front end of the drill cylinder is inserted and clampedly connected with the rear side of the anchor head, and the anchor cable is located in the drill cylinder; a jetting head is arranged on the rear side of the driving box and inserted into the drill cylinder, the anchor head and the outer ring of the drill cylinder are respectively provided with first and second spiral leaves, and when the drill cylinder is drilled, water injection work of the jetting head can directly drive the anchoring body into the interior of the slope; when the drill cylinder is withdrawn, the anchoring body can be left in the interior of the slope, and grouting work of the jetting head can complete the fixing work of the anchoring device in one drilling, thereby shortening the foundation pit support construction time and significantly improving the construction speed.

This invention relates to a silicone rubber adhesive and its preparation method, belonging to the technical field of silicone rubber adhesives. The silicone rubber adhesive comprises the following components: 100 parts of hydroxyl-terminated polydimethylsiloxane and nano-calcium carbonate, of which 40 to 60 parts are nano-calcium carbonate; 2 to 3 parts of methyltrimethoxysilane; 1 to 2 parts of diisopropyl bis(ethyl acetoacetate) titanate; and 0.3 to 0.7 parts of a tackifier. The tackifier comprises compounds with the general structural formula shown in Formula I or Formula II. Compared with existing silicone rubber adhesives, the silicone rubber adhesive provided by this invention contains a tackifier with a specific structure, which can significantly improve the construction speed, meet the needs of rapid construction, and make up for the shortcomings of existing silicone rubber adhesives.

The utility model relates to a kind of anti-collision wall hole-free fixing device, belong to building construction technical field.The purpose is to provide a kind of anti-collision wall hole-free fixing device for temporarily fixing rod component on anti-collision wall, which is easy to operate and install stable.The following technical scheme is adopted, a kind of anti-collision wall hole-free fixing device, including cross bar, steel pipe and two groups of clamping components, steel pipe is vertically fixed in the middle of cross bar, and the both ends of cross bar are each fixed with a group of clamping components;The clamping component includes top rod and two clamping arms, the upper end of two clamping arms is respectively fixed on the bottom surface of top rod both ends, forms the inverted U-shaped frame buckled on anti-collision wall, and two fastening nuts are fixed on each clamping arm, and each fastening nut is threadedly sleeved with a fastening screw rod, which is jacked on anti-collision wall;Two groups of clamping components are arranged in parallel, and the both ends of cross bar are respectively fixed with the middle part of two top rods.The utility model is used for installing rod component on anti-collision wall.