7034 results about "Floor slab" patented technology

The invention provides a construction method of a prefabricated multi-ribbed cavity floor, and belongs to the technical field of prefabricated multi-ribbed plate construction. The construction method of the prefabricated multi-ribbed cavity floor comprises the steps of full-hall scaffold building, main keel laying, overall leveling and the like. The construction method comprises the steps that S1, full-hall scaffold building is conducted, specifically, when a full-hall scaffold is built, vertical rods on the upper layer and the lower layer are required to be aligned, the vertical rods are uniformly arranged from the two sides of a cast-in-place ribbed beam, the vertical rods are arranged at the intersection positions of floor elastic bidirectional lines, and scaffold boards are laid under the vertical rods; S2, main keels are laid, specifically, when the main keels are installed, the main keels are required to be arranged in order and not to be inclined, and the two vertical rods at the intersection positions must abut against the main keels; and S3, overall leveling is conducted, specifically, after the main keels are laid, overall leveling is conducted according to control lines, and full-hall scaffold formworks are hoisted on the main keels. The cavity formworks are supported by placing the modularized cavity formworks which are machined and formed in a factory-like mode, and accurate and rapid installation of an upper plate of the prefabricated multi-ribbed plate is achieved by installing limiting square pipes.

The invention discloses a method for calculating the shear bearing capacity of a compound concrete filled steel tubular column-steel beam joint with a floor, and belongs to the technical field of building connection joints. The method comprises the steps that the yield shear bearing capacity and the ultimate shear bearing capacity of a core area steel pipe web are obtained; the yield shear bearing capacity and the ultimate shear bearing capacity of the vertical rib plates and the anchoring web plates are obtained; the sum of the shear bearing capacity of the pressed truss and the shear bearing capacity of the constraint truss is used as the ultimate shear bearing capacity of concrete; the yield shear bearing capacity of the floor-compound column-steel beam combined joint is the sum of the yield shear bearing capacity of the core area steel pipe web, the yield shear bearing capacity of the vertical rib plate, the yield shear bearing capacity of the anchoring web and the ultimate shear bearing capacity of concrete. According to the sum of the ultimate shear bearing capacities of all the parts, the node designed through calculation according to the method has large shear capacity reserve, the shear capacity and rigidity of the node domain are large, and the shear requirement of the node can be met.

The invention discloses a fabricated building based on a BIM technology and a construction method, and relates to the technical field of fabricated buildings. The structure comprises a floor and a prefabricated wall body, multiple sets of embedded steel bars are arranged at the top of the floor, the outer sides of the embedded steel bars are sleeved with positioning assemblies, multiple sets of assembling holes are formed in the bottom of the prefabricated wall body, the inner diameter of each assembling hole is larger than the outer diameter of each embedded steel bar, and each positioning assembly comprises a positioning outer cylinder and an adjusting inner cylinder; and the adjusting inner cylinder is sleeved on the embedded steel bar. A limiting piece is controlled to slide downwards along a guide hole, at the moment, a telescopic rod can slide in the direction of a positioning outer cylinder, and along with continuous descending of a prefabricated wall, the lower half portion of the hinged position of a positioning supporting rod continuously swings inwards, the upper half portion of the hinged position of the positioning supporting rod swings outwards, and the telescopic rod slides into a sliding cavity; therefore, the gap can be adjusted while the position stability of the prefabricated wall is guaranteed, a cushion block does not need to be independently arranged, construction is easy, and the construction precision is high.

The invention discloses a fully-recycled prestressed square pile and latticed column combined stand column pile construction method, and belongs to the technical field of green foundation pit supporting. According to the construction method of the fully-recycled prestressed square pile and latticed column combined stand column pile, the prestressed square pile serves as the lower section of the stand column pile and is organically combined with the latticed column, the stand column pile can be pressed into the designed elevation through static pressure equipment, and the construction method has the advantages of being low in construction cost, high in construction efficiency, free of pollution and the like; the stand column piles are integrally pressed into a soil body, the foundation pit soil body is excavated layer by layer, concrete supports and surrounding purlins on the periphery of a foundation pit are supported layer by layer through self-servo hydraulic converters and supporting cross beams, foundation pit construction operation is easy and efficient, and construction is safer and more stable; moreover, after a bottom plate and structural floor slabs of all layers are built, the stand column piles can be recycled by 100%, zero emission is truly achieved, the low-carbon, environment-friendly and green construction effects are achieved, in addition, sensors can be arranged in the pile sections of the prestressed square piles, and foundation pit full-section monitoring and deformation control are achieved.

The invention discloses an assembly type composite floor slab cast-in-place section span beam joint design method based on digital twinning, and relates to the technical field of intelligent construction, the method comprises the following steps: adopting a least square optimization algorithm to obtain a material performance correction parameter and a geometric compensation parameter; based on the historical material performance correction parameters and the geometric compensation parameters, training the structure model through a genetic algorithm to generate a digital twin reference model; inputting the material performance correction parameters and the geometric compensation parameters into the digital twin reference model, performing multi-scale finite element analysis, and outputting a multi-scale node performance evaluation report; identifying a multi-scale node performance influence factor and a sensitive area by adopting a response surface method, outputting a design parameter sensitivity analysis result, and converting the multi-scale node performance influence factor into a preliminary node design scheme through a design parameter conversion algorithm; according to the method, the real-time accuracy of node design is remarkably improved through least square dynamic parameter correction.

The invention discloses an assembly type subway station main body structure construction method based on a cover-excavation top-down construction method. Comprising the steps of underground diaphragm wall construction, upper covering soil excavation and pile position drilling, prefabricated pile construction, prefabricated top beam lifting and placing, prefabricated top plate lifting and placing, top beam plate-column joint post-pouring, top plate-side wall joint post-pouring, upper covering soil backfilling, negative first layer earthwork excavation, prefabricated middle beam lifting and placing, prefabricated middle plate lifting and placing, middle beam plate-column joint post-pouring and middle plate-side wall joint post-pouring. Excavating a negative second layer earthwork, pouring a bottom plate cushion layer, prefabricating a bottom beam in place and suspending, binding bottom plate steel bars, post-pouring a bottom plate, and post-pouring a bottom beam column node. A bottom plate is cast in place, a top beam, a top plate, a longitudinal beam and a floor slab are fully prefabricated, and an underground continuous wall and a prefabricated pile serve as temporary enclosure components and also serve as permanent vertical supporting components; and only a simple template needs to be erected, and after the top plate is mounted, the covering soil is backfilled to restore the road surface, so that the construction period is greatly shortened, and the influence of construction on urban traffic and environment is reduced to the minimum.

Disclosed in the present invention are a prefabricated composite floor slab and steel bar truss floor deck directly utilizing old slabs, and a method. The prefabricated composite floor slab comprises new concrete, old concrete slabs, a slab bottom reinforcing mesh, a slab surface reinforcing mesh, steel bar trusses, steel dowel bars, and post-cast concrete. The steel bar truss floor deck comprises new concrete, old concrete slabs, a steel base plate, a slab surface reinforcing mesh, steel bar trusses, steel dowel bars, and support steel bars. According to the present invention, the old concrete slabs are directly utilized instead of being crushed into recycled blocks or recycled aggregates for reuse, thereby greatly simplifying processing procedures, significantly increasing the recycling rate of old concrete, and significantly reducing the usage amounts of new concrete and corresponding cement, thus achieving a significant carbon emission reduction effect; through holes are vertically drilled in the old concrete slabs, the steel dowel bars are inserted into the through holes, gaps between the steel dowel bars and the through holes are then filled with a high-strength grouting material, and shear resistance members are arranged on the side edges of the old concrete slats to enhance the shear resistance at the interface between the new concrete and the old concrete.

The invention discloses on-site cutting equipment for a steel bar truss floor support plate in the technical field of building construction, the on-site cutting equipment comprises a base, a feeding assembly and a discharging assembly, a supporting and conveying assembly and two symmetrically-arranged movable supporting and discharging assemblies are arranged between the feeding assembly and the discharging assembly, and a top plate is arranged above the base; a multi-position cutting assembly, a moving assembly, a material pressing assembly and a double-side material cutting assembly are arranged on the top plate in a similar mode, the middle of a plate is cut through the multi-position cutting assembly, and meanwhile the two sides of the plate are subjected to edge cutting treatment; by arranging the movable supporting and discharging assembly, adjustment can be conducted according to the trimming position, and the supporting function and the waste discharging treatment function are provided; the double-side material cutting assembly is used for transversely cutting the trimmed waste material part, and the plate is intermittently conveyed so as to be matched with the reciprocating motion of the double-side material cutting assembly, so that the long-strip-shaped waste material part is cut into small blocks, the small blocks are discharged and collected, and the waste material treatment is simpler and more convenient.

Foldable sleeping basket, characterized in that it comprises: Support rod receptacles (1), wherein two groups of support rod receptacles (1) are provided and arranged at intervals, wherein a plurality of transverse support rods (2) are fixedly connected between the two groups of support rod receptacles (1), and a curved bottom rod (3) is hingedly connected to each of the two end sides of the two groups of support rod receptacles (1); inclined support rods (4), wherein the inclined support rods (4) are arranged in groups of two and are articulated symmetrically to the support rod holder (1), a connecting rod between the inclined support rods (4) and the base rod (3) is articulated on the same end side of the support rod holder (1), and the support rod holder (1) and the inclined support rod (4) on the same end side, the connecting rod and the base rod (3) form a first four-bar linkage; Enclosing rods (5), wherein two groups of enclosing rods (5) are provided and both are bent rods, the two groups of enclosing rods (5) are arranged one-to-one and above the two groups of floor rods (3), the ends of the two groups of enclosing rods (5) are hingedly connected, the upper ends of the inclined support rods (4) are hingedly connected to the enclosing rods (5) on the corresponding side, the two groups of inclined support rods (4) on the same support rod holder (1) and the enclosing rods (5) form a second four-bar linkage, wherein the second four-bar linkage is a control end and is hinged to change the deformation state of the first four-bar linkage; and a handle (6), wherein the handle (6) is hinged to a node point of two groups of the enclosing rods (5).

The invention relates to the technical field of construction quality control, and discloses a construction quality control method and system for a well lattice steel bar truss floor and a medium. The method comprises the steps that a well lattice reinforcement cage is obtained through binding connection, the flatness is detected, and structural parameters are obtained to determine quality data; truss steel bars are connected based on the quality data, and nodes are detected after perpendicularity is calibrated; supports are arranged according to node data, elevation is adjusted, and a support scheme is formulated; concrete is poured according to the scheme, and the pouring quality is controlled through compactness detection; making a maintenance scheme according to the quality data, monitoring, and generating control parameters; and finally, inspecting the quality according to parameters, analyzing and then issuing a report. Quality control over the whole construction process of the well lattice steel bar truss floor slab is achieved, and the reliability and traceability of the construction quality are ensured.

Disclosed in the present application is a cast-in-place prefabricated building formwork component suitable for columns or beams, comprising a columnar formwork and stirrups fixed to the formwork; the upper and lower ends of the formwork are provided with connection fitting parts that fit adjacent formworks; the formwork is defined by steel plates; the stirrups are jointly formed by the steel plates and rod-shaped members fixedly connected to inner side surfaces of the steel plates. In addition, further disclosed in the present application are a cast-in-place prefabricated building shear wall component and a cast-in-place prefabricated building floor slab component. A stress test result proves that structures such as columns and beams formed by the cast-in-place prefabricated building formwork component in the present application can have a better constraint effect on concrete cast inside, and particularly increase a constraint area, thereby improving the overall shear resistance and bearing capacity of buildings, and having great significance for seismic resistance of the buildings in earthquakes.

The invention discloses a building reinforcement type fabricated structure construction which comprises a prefabricated wall body, a plurality of connecting steel bars are pre-buried in the prefabricated wall body, the ends of the connecting steel bars extend out of the top end of the prefabricated wall body, steel bar inserting holes corresponding to the ends of the connecting steel bars are prefabricated in the bottom of the prefabricated wall body, and the hole diameter of the steel bar inserting holes is larger than the diameter of the connecting steel bars. A reinforcing base is further included, a fixing groove is formed in the bottom face of the reinforcing base, a plurality of through holes corresponding to the rebar inserting holes are formed in the top face of the reinforcing base, and the ends, connected with the rebars, of the top of the lower-layer prefabricated wall body can penetrate through the through holes and then are inserted into the rebar inserting holes in the bottom of the upper-layer prefabricated wall body. The reinforcing base is additionally arranged on the basis of an original prefabricated wall to be connected with the floor and the ground, the reinforcing base is made of a high-strength material and is in an optimized geometrical shape, and the connecting force between the wall and the ground is improved in cooperation with pouring of concrete, so that the reinforcing wall is supported, and the effect of external force can be effectively resisted.

The invention relates to the technical field of constructional engineering, in particular to a prefabricated large-span reinforced concrete floor capable of being assembled and adjusted. The floor slab comprises a prefabricated reinforced concrete slab with the length extending in the front-back direction, the front side and the rear side of the lower end face of the prefabricated reinforced concrete slab are each provided with a set of lap joint parts extending downwards, and a bottom support assembly fixed to the lower end face of the prefabricated reinforced concrete slab is arranged between the two lap joint parts; the bottom support assembly comprises a plurality of bottom support units which are arranged at intervals in the front-back direction, the bottom support units are symmetrically arranged in the front-back direction with the center of the prefabricated reinforced concrete slab as the center, the lower end of the bottom support unit in the middle is lower than the lower ends of the bottom support units on the two sides, and a prestress inhaul cable is connected between the two lap joint parts. And the lower end of each collet unit is supported and fixed on the prestressed inhaul cable. The bottom support assembly and the prestress inhaul cable are adopted to replace a lower flange and a web, the self weight is light, meanwhile, the lap joint part is arranged, the contact area of the floor and a building structure is increased, stress is reduced, assembling is convenient, and safety is improved.

The invention discloses a construction method of an aluminum alloy formwork system for residential buildings. According to the construction method, the difficulty of assembly and disassembly construction and turnover use of aluminum alloy formworks can be reduced, and the construction quality and the construction efficiency of an assembly type structural system are improved. The construction method comprises the following steps: rechecking an axis and a wall line projected by a wall body according to a building design scheme, so that the axis and the wall line meet construction requirements; determining a wall body vertical reference line, and positioning a wall corner; a wall formwork system is installed, and perpendicularity is corrected; a beam formwork system is installed and corrected; a floor formwork system is installed and corrected; wall body concrete, beam body concrete, column concrete and floor slab concrete are poured, so that the wall body, the beam body, the column and the floor slab are connected into an integral structure; and the wall formwork system, the beam formwork system and the floor formwork system are dismantled, and the dismantled wall formwork system, the dismantled beam formwork system and the dismantled floor formwork system are conveyed to an upper-layer building for construction through a feeding opening.

The utility model relates to the technical field of added elevator connection construction, in particular to an added elevator corridor beam end connecting device for an existing building, the existing building comprises a rest platform and a ring beam located on the rest platform, and further comprises a corridor beam, an upper steel gasket and a lower steel gasket, and the lower steel gasket is arranged at the bottom of the ring beam in an attached mode. The upper steel gasket is arranged on the upper surface of the rest platform and located above the lower steel gasket. The upper steel gasket and the lower steel gasket are anchored and connected through a plurality of bolts; one end of the corridor beam is hinged to the added elevator, and the other end of the corridor beam is fixedly connected to the upper steel gasket. Under the condition that the ring beam is located on the rest platform and is far away from the outer vertical wall surface, the connecting structure can not damage the original floor slab and platform without partially dismantling the rest platform, so that the safety of the existing building and the connecting strength of the added elevator corridor are guaranteed.

The invention belongs to the technical field of constructional engineering, and particularly relates to a full-tenon-and-mortise modified gypsum fabricated building component designing and assembling method.The full-tenon-and-mortise modified gypsum fabricated building component comprises beams, columns, wallboards, floors, stairs and door and window frames, the beams and the columns are connected in a tenon-and-mortise mode, and the columns are vertically connected in a tenon-and-mortise mode; a modular steel skeleton node box is connected to the cross intersection node of the column and the beam, the wall plate and the beam are in mortise and tenon connection, the wall plate and the column are in mortise and tenon connection, the wall plate and the floor plate are in plug-in type straight tenon connection, and the wall plate and the door and window frame are in stepped multi-channel sealing mortise and tenon connection; according to the full-tenon-and-mortise modified gypsum fabricated building component, a tenon-and-mortise connection mode is adopted, beams and columns, columns and columns, wallboards and beams, wallboards and columns and the like are tightly engaged through tenon-and-mortise structures, a connection system similar to a traditional wood structure is formed, loads can be effectively transmitted, and the integrity and stability of a building structure are improved.

The utility model relates to the technical field of building construction, in particular to a floor thickness detector for building construction, which comprises a support plate and a detection mechanism, a support mechanism is arranged below the support plate, and the detection mechanism is positioned in the middle of the support plate. The detection mechanism comprises a sliding rod slidably installed in the middle of the supporting plate, a drilling assembly used for drilling a floor and a detection assembly, a lower pressing plate is slidably installed between the two sliding rails, a transparent scale plate is arranged in front of the lower pressing plate, and an auxiliary assembly is arranged at the lower end of the sliding rod. The device has the beneficial effects that a floor is drilled through the arranged drilling assembly, the detection assembly and the auxiliary assembly move downwards to penetrate through a floor hole, the lower end of the floor hole is clamped through the auxiliary assembly, the displacement amount of the lower pressing plate is observed through the scale plate, and then the thickness of the floor can be obtained by subtracting the length of the drilling assembly and the length of the auxiliary assembly; the measurement is more simple, convenient and efficient, the cost is low, and the effect of rapid detection is achieved.

The invention relates to the technical field of house monitoring, and discloses a house deformation monitoring method, which comprises the following steps: S1, acquiring a real-scene image of each wall surface of a house, importing the real-scene image into a trained image recognition model, and outputting a result to indicate whether a crack exists in the wall surface or not; s2, marking a wall body with a crack on the wall surface as a target wall body, and recording original characteristic parameters of the corresponding crack; s3, a crack measuring instrument is installed at the crack of the target wall, and crack width real-time change data is collected; s4, a plurality of first monitoring points are preset on the target wall body, and a plurality of second monitoring points are preset on a floor slab connected with the target wall body; and S5, acquiring position information data of the first monitoring point and the second monitoring point through monitoring, and comprehensively analyzing the position information data of the first monitoring point and the second monitoring point. According to the invention, the timeliness of capturing the house monitoring information is improved, and the potential safety hazard generated in the house deformation monitoring process is reduced.

The invention discloses a high-rise building high-altitude large-span overhanging balcony overhanging type formwork supporting device which comprises a balcony body arranged on a first floor slab and a fixing beam arranged on a second floor slab, and the end of the fixing beam is fixedly connected with the second floor slab through a plurality of sets of first fastening bolts. A supporting beam is slidably connected to the fixing beam, a plurality of sets of scaffolds are fixed to the supporting beam, abutting plates are arranged at the tops of the scaffolds, and supporting formworks used for laying the balcony body are arranged on the abutting plates. Through the arrangement of the fixed beam and the supporting beam, the supporting beam can slide relative to the fixed beam, the length of the supporting beam is adjusted, when a wider balcony is constructed, the length of the supporting beam is increased, so that the supporting width is increased, the construction requirement of the wider balcony is met, and convenience and practicability are achieved.

The invention discloses a tension-shear integrated fabricated frame structure beam-column connection joint and a construction method thereof, and relates to the technical field of fabricated structures, and the technical scheme is characterized in that the tension-shear integrated fabricated frame structure beam-column connection joint comprises a fabricated frame column and a fabricated frame superposed beam, and a groove used for placing a superposed floor slab is reserved in the position, at the floor slab, of a column body of the fabricated frame column; a first steel bar threaded sleeve is pre-embedded in the groove and is used for mounting plate upper steel bars; second steel bar threaded sleeves are embedded in the grooves and used for installing beam upper steel bars. I-shaped connecting pieces are pre-buried in the positions, below the grooves, of the assembly type frame columns and used for installing the assembly type frame superposed beams. Small-diameter steel bar threaded sleeves are pre-buried in the positions, below the I-shaped connecting pieces, of the assembly type frame columns and used for installing masonry tie bars. By separating beam-column connection and column-column connection of the assembly type frame structure, column-column connection is improved to the middle position of the floor height, the reinforcing steel bar density of beam-column connection joints at the floor position is reduced, and the installation and pouring difficulty is reduced.

The invention discloses an in vitro calibration method for detecting steel bars inside a floor slab by a ray method, first locating the steel bars inside the floor slab from the upper surface of the floor slab, and measuring the distance a between the upper edge of the steel bars and the upper surface of the floor slab; arranging a calibration plate on the upper surface of the floor slab, recording the size of the calibration plate as the calibration size f, setting up an imaging plate above the floor slab and above the calibration plate, and measuring the setting height b of the imaging plate from the upper surface of the floor slab, setting up an X-ray machine below the floor slab and below the imaging plate; starting the X-ray machine for shooting, and displaying the shooting results on a computer in real time, obtaining the internal structure of the floor slab and an imaging diagram with the calibration plate; measuring the projection size g of the calibration plate and the projection size d of the diameter of the steel bars in the floor slab in the imaging diagram; and calculating the steel bar diameter according to the product of the projection size d and the correction coefficient δ. The invention can obtain the detection result non-destructively and efficiently.

The invention discloses a tunnel and station integrated structure suitable for a soft soil stratum, which belongs to the technical field of underground stations and comprises a tunnel and a plurality of access passages. Layered floors extending in the longitudinal direction are arranged in the tunnel. The first-layer space comprises station hall sections arranged at intervals in the longitudinal direction. The second-layer space comprises two rail-mounted areas extending in the longitudinal direction, a comprehensive pipe gallery and a platform interval corresponding to the station hall interval. The two rail-mounted areas are arranged on the two transverse sides of the comprehensive pipe gallery correspondingly, and the platform section is arranged on the top of the comprehensive pipe gallery. Each access channel comprises a lifting vertical shaft extending in the vertical direction, and a lifting vertical ladder is arranged in each lifting vertical shaft. The tunnel and station integrated structure suitable for the soft soil stratum can adapt to the geological environment of the soft soil stratum, the excavation range of the ground in the station construction process can be reduced as much as possible, and the safety of the whole station structure and access channels can be guaranteed while the excavation work amount is reduced.

The utility model relates to the technical field of indoor overhead ground construction, in particular to an overhead ground structure suitable for a large-specification ceramic tile surface layer, which comprises a building floor slab, a supporting structure arranged above the building floor slab and a ground structure arranged above the supporting structure, the foundation bolt comprises an elastic rubber base, a supporting screw rod and a bearing and supporting nut which are sequentially connected, the supporting screw rod comprises a screw rod base plate and a screw rod structure, and a screw rod drainage hole is formed in the screw rod structure in the length direction in a penetrating mode; the ground structure comprises a first calcium silicate board, a high-strength extruded sheet, a second calcium silicate board and ceramic tiles which are sequentially and upwards laid above the supporting structure, a threaded hole groove is formed in the bottom face of the first calcium silicate board, a bearing supporting nut is in threaded connection with the bottom face of the first calcium silicate board, and a bearing disc of the bearing supporting nut abuts against the bottom face of the first calcium silicate board. Installation is convenient and reliable.

The invention discloses an assembly type multi-layer lightweight concrete sandwich wallboard structure system, which relates to an assembly type multi-layer building and comprises lightweight concrete sandwich prefabricated wallboards, vertical corner prefabricated members and fully prefabricated hollow floor slabs, the lightweight concrete sandwich prefabricated wall panel and the vertical corner prefabricated part are connected in an anchoring mode through a vertical anchoring connecting section, a prefabricated bracket is arranged on one side of the lightweight concrete sandwich prefabricated wall panel, and the full-prefabricated hollow floor slab is arranged on the prefabricated bracket. The fully-prefabricated hollow floor slabs and the lightweight concrete sandwich prefabricated wallboards are anchored and connected through the horizontal cast-in-place sections of the fully-prefabricated hollow floor slabs, and every two adjacent layers of lightweight concrete sandwich prefabricated wallboards and vertical corner prefabricated parts are fixedly clamped through buckle type connecting parts. The invention further discloses a construction method of the fabricated multi-layer lightweight concrete sandwich wallboard structure system. Connection joints are simple and convenient, grouting connection is not needed, the prefabricated horizontal members do not need temporary supports, the on-site pouring amount is small, and the stress performance is good.

The invention relates to the technical field of floor vibration reduction, in particular to an adjustable vibration isolator capable of pre-pressing damping vibration isolation and an adjustable floor floating structure, and the adjustable vibration isolator comprises an outer elastic assembly, an inner elastic assembly, a connecting plate body, a fixed frame body, an adjusting screw tube and a fastening screw. The adjustable floor floating structure comprises a plurality of the adjustable vibration isolators, and further comprises a bearing plate and a ground isolation layer. The adjustable vibration isolator has the advantages that the excellent vibration isolation effect can be achieved in the vertical direction, the service life of related equipment can be prolonged, the efficient vibration reduction effect can be kept for a long time, high stability can be kept, and the excellent sound insulation, vibration isolation and damping performance can be achieved; the adjustable floorslab floating structure can obtain all the advantages brought by the adjustable vibration isolator, the vibration reduction strength can be adjusted according to actual requirements, and therefore the situation that the follow-up using performance is affected by design, construction and manufacturers can be avoided, and the excellent sound insulation, vibration isolation and vibration elimination performance can be brought into play.

The utility model provides a prefabricated concrete beam dry type connection node, which belongs to the field of prefabricated buildings, and is characterized in that an upper high-strength bolt is arranged above the top surface (within the height of a floor) of a prefabricated concrete beam so as to increase the connection arm of force of the upper high-strength bolt, so that equal-strength node connection with a steel bar in the beam is realized by utilizing a single large-diameter high-strength bolt; the installation convenience is greatly improved; the upper high-strength bolt and the lower high-strength bolt are combined for clamping, so that tensile and compression-resistant bidirectional force transmission is realized (in a normal state, the upper high-strength bolt is tensile, and the lower high-strength bolt is compression-resistant; ), so as to cope with the bending moment change of the precast concrete beam under the action of the reciprocating load.

The invention relates to an assembly type steel structure beam-column joint with replaceable arc-shaped energy dissipation plates. The assembly type steel structure beam-column joint mainly comprises an H-shaped steel column, an H-shaped steel beam, a plurality of sets of arc-shaped energy dissipation plates and a plurality of connecting pieces. According to the technical scheme, the H-shaped steel column is connected with the upper flange and the lower flange of the H-shaped steel beam through the T-shaped piece and the energy consumption device composed of the multiple sets of arc-shaped energy consumption plates so as to bear the bending moment effect; the H-shaped steel column is connected with a web of the H-shaped steel beam through a T-shaped piece so as to bear vertical shearing force. Under the action of an earthquake, the beam component can rotate around the end part of the upper flange, so that the damage to a floor slab is effectively reduced; and the post-earthquake damage of the joint is concentrated on the arc-shaped energy consumption plate which is easy to detect and replace, and the main body beam column component is not damaged, so that the post-earthquake recovery capability of the joint is greatly improved. In addition, the geometric configuration of the arc-shaped energy consumption plate can be flexibly adjusted, so that the mechanical parameters of the joint have high adjustability.

The invention discloses a profiled steel sheet light steel skeleton foam concrete composite floor slab and a mounting method thereof. The composite floor slab comprises a light steel skeleton, and alkali-resisting gridding cloth is arranged on the bottom face of the light steel skeleton; a steel wire mesh is arranged on the bottom surface of the alkali-resistant gridding cloth, and a profiled steel sheet is arranged on the top surface of the light steel framework; the steel wire mesh is welded with the light steel framework, and the profiled steel sheet is fixedly connected with the light steel framework; foam concrete is filled between the steel wire mesh and the profiled steel sheet. According to the profiled steel sheet light steel framework foam concrete composite floor slab and the mounting method thereof, the problems that in the prior art, a foam concrete floor slab is prone to cracking, poor in waterproof effect, difficult in wiring and the like are solved, and the purposes that the cracking risk of the foam concrete floor slab is reduced, meanwhile, the waterproof performance is improved, and various pipelines can be arranged conveniently are achieved.

The utility model discloses a novel porous precast slab reinforcing assembly which comprises a plurality of first reinforcing strips, second reinforcing strips and third reinforcing strips (41), the first reinforcing strips are distributed in parallel to the stress direction of precast slabs (63) and located at the splicing seams of the precast slabs (63), and the third reinforcing strips (41) are distributed in parallel to the stress direction of the precast slabs (63). The second reinforcing strips are distributed in the direction perpendicular to the stress direction of the prefabricated plate (63), the second reinforcing strips and the first reinforcing strips are arranged at intervals, and the third reinforcing strips (41) wrap the side edge of the non-stress side of the prefabricated plate (63). The floor has the advantages of being good in floor integrality and capable of preventing floor leakage.