47results about "Building repairs" patented technology

A flange connection system for a concrete structure comprising a plurality of adjacent precast concrete members including a platform having a center panel and a first and second flange extending outward from the center panel in opposing directions. The system includes a first and second bent plate each having a horizontal member attached to the bottom surface of the adjacent flanges and a vertical member perpendicular to the horizontal member. The system includes a spacer plate extending in a vertical direction from about a lower edge of the first vertical member to below the first horizontal member and secured between the vertical members of the first and second bent plate with a plurality of fasteners. The first and second vertical member may flex at an upper portion allowing adjacent flange ends to move relative to one another.

A lubricating system for a heavy-duty material processing shears provides lubricant to one of more wear surfaces on one or more wear portions in the shears. The system includes a hydraulic lubricant pump that is actuated by the main hydraulic control system by means of which the jaws of the shears are opened and closed, and may include a sequential valve to distribute lubricant to various wear portions in sequential fashion. The lubricating system may lubricate one or more wear surfaces of the lateral blade stabilizers, primary and secondary blade(s) on the upper and/or lower jaws, pivotal connections between jaws and/or between the upper jaw and the hydraulic cylinder, a forward wear plate, or any other wear portion of the shears. The lubricating system may be retrofitted onto a conventional non-lubricated shears by replacing a conventional upper jaw with an upper jaw with lubricant conduits and a lubricating system.

The invention discloses a structure and method for reinforcing ancient residential building wall column connection. The characteristic that effective connection between external enclosure walls and internal bearing columns of a large number of ancient residential buildings lacks is taken into consideration, wall column connection is reinforced by the adoption of a reinforcing scheme that parts are prefabricated off site and assembled on site, overall performance of the ancient residential buildings is improved, and collapse is prevented. According to the structure and method, connection of wall columns of the ancient residential buildings can be reinforced, structural integrity is improved, and the situation that the whole ancient residential buildings are unstable and continuously collapse accordingly is effectively prevented. Meanwhile, the structure and method have the advantages that the reversible degree is high, no open flame operation exists in site, the structure and method are easy to operate, convenient to apply, high in applicability, free of damage to the ancient residential buildings and the like, when the ancient residential buildings are influenced by earthquakes, strong breezes and man-made effects, an effective protection effect can be played, and the structure and method are applied to traditional ancient residential building structural systems with internal wood structure bearing and external enclosure wall characteristics and have broad application prospects in the aspect of preventing the whole ancient residential buildings from collapsing.

The invention discloses a jacking pipe cutting protective structure for building remains and a construction method thereof. The protective structure comprises an earthwork foundation, a migration body, a box-shaped protective system and a hoisting base, and the box-shaped protective system comprises steel plate protective barrels and protective barrel keels; and the hoisting base comprises steel pipe curtains and opening locking steel beams, the opening locking steel beams and the steel pipe curtains are connected to form a whole, and the hoisting base is provided with hanging point structuresfor allowing hoisting ropes to be connected. The construction method of the protective structure comprises the steps of layered excavation of earthwork, pre-reinforcing of the migration body, lateralreinforcing, earthwork foundation construction, surrounding basement treatment, erection of a jack jacking pipe device, jacking trying, steel pipe marching, butting-joint of steel pipes, jacking andpenetrating through of a soil body, connection of the steel pipes and the opening locking steel beams, hoisting point setting, hoisting and the like. According to the jacking pipe cutting protective structure for the building remains and the construction method thereof, site arrangement is easy, the construction progress is quick, interference factors are less, civilized construction is facilitated, various resources can be well utilized, it can be ensured that surrounding existing facilities are intact, and safety of lives and property of residents is ensured.

The invention discloses a processing method for a masonry wall crack. The processing method comprises the steps that plaster layers on the two sides of the masonry wall crack are shoveled away along the masonry wall crack until a masonry wall is exposed; a plurality of V-shaped grooves are cut along the masonry wall crack, the V-shaped grooves are perpendicular to the crack, and positioning holesare drilled at the two ends of each V-shaped groove, so that U-shaped tie bars are inserted into the positioning holes; cement paste is poured into the positioning holes at the two ends of each V-shaped groove, the bending parts on the two sides of each U-shaped tie bar are inserted into the corresponding positioning holes on the two sides of the crack, so that anchoring is formed between the parts, inserted into the holes, of the U-shaped tie bars and the cement paste, the U-shaped tie bar bodies are buried into the V-shaped grooves, the crack is mended with mortar in a embedded mode, the V-shaped grooves are covered with the mortar, and primary trowelling is conducted; hardware cloth is laid along the crack range, so that the whole masonry wall crack is covered, and after leveling is conducted with cement plaster, mending parts are trowelled with latex putty till to be as level as an original wall surface. According to the processing method for the masonry wall crack, it is achievedthat the crack is mended, and the development of the crack is suppressed to some extent.

The invention discloses a method for the combination of a post-increasing steel beam and a concrete slab. Firstly, the location of a post-increasing steel beam (3) and a connecting steel plate (1) is determined on the bottom surface of a built concrete slab (4); secondly, a post-anchoring building anchor bolt (2) is anchored in the built concrete slab (4) at the location of the connecting steel plate (1); then the connecting steel plate (1) is fixed on the bottom surface of the built concrete slab (4) by the post-anchoring building anchor bolt (2); finally, the post-increasing steel beam (3) and the connecting steel plate (1) are connected. The invention uses the post-anchoring building anchor bolt for replacing the traditional shearing connecting piece, is used for bearing the vertical shearing force between the superimposing surfaces of the steel beam and the reinforced concrete slab, restricts the relative sliding of the steel beam and the reinforced concrete slab, causes the steel beam and the reinforced concrete slab to be combined into a whole and work reliably, and provides a simple and effective processing method for the technical transformation of the combination structure of the steel and the concrete.

A wind turbine tower which includes a number of sections, connected by bolted joints is disclosed. A bolted joint includes at least one connection of the bearing type and at least one connection of the slip resistant at serviceability type. In one aspect, the bearing type connection includes at least one non prestressed bolt and/or the connection of the slip resistant at serviceability type includes at least one prestressed bolt.

The invention relates to a device and a method for decreasing columns and reinforcing girders of reinforced concrete members, aiming to realize reinforcement of reinforced concrete girders and removal of columns while meeting requirements of room layout and use functions, and complete strengthening and reinforcing of the reinforced concrete girders by supporting action of the four-leg steel pipe struts rather than that of reinforced concrete columns. Particularly, two four-leg steel pipe struts are arranged on two sides of one reinforced concrete column, steel pipe top beams are supported to the bottoms of the reinforced concrete girders by jacks on the upper portions of the four-leg steel pipe struts, so that load of the reinforced concrete girders is transmitted, and the reinforced concrete columns are replaced. Further, the reinforced concrete columns are removed and formworks are mounted while concrete is poured, so that the purpose of reinforcing the reinforced concrete girders is achieved. The device is easy to manufacture, convenient to install, easy to operate and targeted highly, solves the difficulty in reinforcing the reinforced concrete walls and girders, and has high economic benefit and social benefit.

The present invention relates to a method for reinforcing reinforced concrete structure by externally riveting steel plate and its special-purpose rivet. The reinforcing steel plate strip can be riveted on the surface of the concrete member from exterior of the concrete member, and the described rivet is made into the form of that the half of the rivet head of said rivet is semicylindrical form, and another half of semiconical form, and the cross-section of said rivet body is rectangular, and the transition portions between four planes of rivet head and rivet body are made into the oblique surface structure.

The invention relates to the technical field of support structure construction and discloses a construction method of a pile-column integrated structure. The pile-column integrated structure comprisesa cast-in-place pile formed below a foundation and a steel pipe column, wherein the steel pipe column is connected to the cast-in-place pile and extends to the portion above the foundation. The construction method comprises the following steps of S1, construction of a pile hole, wherein the construction position of the pile-column integrated structure on the foundation is measured, and the pile hole is formed in the foundation in a rotary excavating mode; S2, pouring of the cast-in-place pile, wherein a steel reinforcement cage and a guide pipe are placed into the pile hole, and concrete is pumped and poured into the pile hole through the guide pipe; S3, insertion of a steel pipe, wherein the lower end of the steel pipe is inserted into the cast-in-place pile, and a gap between the steelpipe and the pile hole is subjected to backfilling; S4, installation of the steel reinforcement cage in the steel pipe, wherein the steel reinforcement cage is installed in the steel pipe; S5, pouringof the steel pipe column, wherein after the concrete of the cast-in-place pile initially sets, the concrete is poured into the steel pipe, the steel pipe column is formed after the concrete sets, andthe cast-in-place pile and the steel pipe column form the pile-column integrated structure. The pile-column integrated construction structure constructed by means of the method is stable and firm.

The invention provides a storey-adding structure and method of a steel structure building, and belongs to the field of building construction. The storey-adding structure of the steel structure building comprises pipe rack columns, supporting parts, lifting columns, lifting beams, electric hoists, a steel roof truss, steel scale rods and steel columns, wherein the supporting parts are fixed to thetops of the pipe rack columns, one ends of the two lifting columns are welded to the top faces of the supporting parts respectively, and the other ends of the two lifting columns penetrate through thetop face of the steel roof truss and are welded to the two ends of the lifting beams respectively. The storey-adding structure and method of the steel structure building have the advantages that thelifting columns are coaxial with vertical columns, the upper ends of the lifting columns run through holes allowing the lifting columns to run through on the roof, the lifting columns play a limitingrole in the roof during limiting, so that the accuracy of the lifting operation is high, the subsequent alignment and installation of the newly-increased vertical columns are convenient, a large amount of labor cost and machinery one-shift cost can be saved, the construction progress is sped up, and the construction safety is improved.

The invention discloses a sliding construction method for a building. The sliding construction method for the building is characterized by comprising the following construction steps: (1) chiseling away a 1/5 cross section of a frame column as a part connected with a sliding beam; (2) chiseling away a brick wall of a sliding beam part and supporting a form board; (3) supporting sliding beam reinforcing steel bars; (4) pouring siding beam concrete; (5) cutting off reinforcing steel bars for connecting the frame column with a raft board by using an air cutting machine and removing concrete of the connecting part; (6) connecting a wood pull beam with an embedded screw of the sliding beam; (7) pouring a new foundation of a located part of the sliding beam; (8) burying a traction steel hanging ring on the raft board in the direction facing the traction direction, constructing a counterforce pile, and mounting a counterforce facility and a jack; (9) laying sliding iron rails in the sliding direction, and laying sliding iron rails on the new foundation; (10) carrying out traction by using a traction facility; and (11) connecting the sliding beam with the new foundation and connecting the frame column with the new foundation.

The invention relates to a reinforcing protection and repairing method for a historical earthen site and an ancient building city wall. The method comprises the following steps of A, appearance sample reserving; B, surface mold drawing; C, frame beam laying; D, reinforcing mesh tying; E, concrete pouring; and F, curing agent spraying. The reinforcing protection and repairing method for the historical earthen site and the ancient building city wall aims at solving or at least relieving the problem that an existing repairing and protecting method cannot restore the original appearance of a historical site after repairing and reinforcing.

The invention discloses a supporting steel pipe device of an underground added layer of an existing building. The supporting steel pipe device comprises at least two steel pipes, every two adjacent steel pipes are connected with each other through a steel pipe joint and short pins, and a first plughole in which a long pin can be plugged is formed in the position, outside the range of the length of each steel pipe joint, at the upper end of each steel pipe; each steel pipe joint and every two adjacent steel pipes are provided with corresponding second plugholes in which the short pins can be plugged, and the first plughole and the second plugholes in each steel pipe are arranged by being staggered by 90 degrees. Meanwhile, the invention further discloses an installing method of the supporting steel pipe device. The supporting steel pipe device guarantees that the steel pipes bear force reasonably after being connected, achieves rapid and convenient connection of the steel pipes, shortens the time for inserting the steel pipes into boreholes, and lowers the risk of borehole collapse. Meanwhile, horizontal tied rod members can be installed conveniently, and stability of the steel pipes is guaranteed. The steel pipes can be recycled, so that engineering cost is lowered. Required hoisting equipment is portable, construction is applicable to basements and other narrow and small space, and technical support is provided for the underground added layer of the existing building.

The invention discloses a reinforcing structure for a decoration rain shed of a municipal garden building and solves the problem that the angel of a traditional rain shed cannot be adjusted. Accordingto the technical scheme, the reinforcing structure is characterized in that the ends, on the same side, of two side beams both are connected to a wall in a pivoted mode, and the rotating surfaces ofthe side beams are vertical; a rolling-up device which is fixed to the wall and used for rolling up or releasing a flexible connecting piece is overhead arranged above the side beams. According to thereinforcing structure for the decoration rain shed of the municipal garden building, the side beams connected to the wall in the pivoted mode can make the rain shed overturned on the wall, so that the angle of the rain shed in the vertical direction is adjusted; cross beams can improve the strength of the overall structure of the rain shed; the flexible connecting piece is rolled up or released by the rolling-up device so that the rain shed can be effectively driven to be overturned in the vertical direction, the angle of the rain shed is adjusted, the accumulated water on rain shed cloth isconveniently discharged, and moreover, the rain shed cloth is easy to clean.

The invention provides a removal method of outdoor hanging steps. The removal method comprises the steps of arranging a protective fence, and removing a step decorative surface of the top surface of a to-be-removed step; cutting off a cable and water, electricity and gas pipelines; reinforcing both ends of the to-be-removed step by adopting a steel pipe scaffold, and jacking the bottom of the to-be-removed step by adopting a jacking and a square timber on the top of the steel pipe scaffold; fixing a plurality of steel wire ropes for hoisting to the to-be-removed step, and connecting one end of each steel wire rope with hoisting equipment; cutting the both ends of the to-be-removed step by adopting cutting equipment, wherein a component on the upper part of the steel pipe scaffold is not broken; hoisting the to-be-removed step through hoisting equipment, and then placing the to-be-removed step on the ground; removing the to-be-removed step on the steel pipe scaffold in a crushing mode through a crusher; removing the steel pipe scaffold, and cleaning engineering garbage; and arranging a spraying machine and a watering cart so as to control flying dust of the construction phenomenon during removal. The removal method has the advantages of no damage to a main building, simplicity in operation, convenience in construction, high working efficiency and high safety.

The invention discloses a reinforced concrete prefabricated part with reinforced plasticity. The reinforced concrete prefabricated part is provided with a plurality of steel bars and a concrete protective layer with sufficient thickness and at the exteriors of the steel bars. The reinforced concrete prefabricated part is characterized in that the reinforced concrete prefabricated part further comprises a carbon fiber reinforced plasticity part consisting of carbon fiber cloth and epoxy bonded resin. The reinforced concrete prefabricated part is characterized in that the carbon fiber reinforcedplasticity part consisting of the carbon fiber cloth and the epoxy bonded resin is placed in the concrete protective layer, the carbon fiber cloth is fixed on the steel bars, and the reinforced concrete prefabricated part with the carbon-containing reinforced plasticity aims to solve deficiencies in the prior art, has the high crack resistance, and meets urgent requirements of use safety for a hydraulic structure in society.

The invention provides an automatic leakage blocking device with a width regulating function. A leakage blocking regulating hole is formed in a leakage blocking support frame; a leakage blocking width regulating rod is connected with two fastening block connecting rods through a regulating connecting shaft; the fastening block connecting rods are connected with horizontal regulating fastening blocks through fastening block connecting shafts; a regulating hole sealing plate is connected with the leakage blocking support frame through a sealing plate regulating shaft; a leakage blocking agent sealing layer covers the outer layers of the horizontal regulating fastening blocks, and is connected with the leakage blocking support frame; and a leakage blocking agent filling groove is formed between the horizontal regulating fastening blocks and the leakage blocking agent sealing layer. The automatic leakage blocking device has the beneficial effects that the leakage blocking efficiency of the leakage blocking device is effectively improved; the use range of the leakage blocking device is effectively expanded; and the practicability of the leakage blocking device is greatly improved.

The invention discloses a method for chiseling a mid-partition of an underground engineering group pit. The method comprises the following steps: (1) dividing a to-be-chiseled part of the mid-partition and a reserved part of the mid-partition; (2) partitioning the to-be-chiseled part of the middle-partition, chiseling the partitioned middle-partition, and reserving a temporarily reserved part of the middle-partition between the two partitioned blocks in the chiseling process; (3) after chiseling of the partitioned mid-partition is completed, building a permanent constructional column between the mid-partition of the foundation pit; (4) after the construction of the constructional column is completed, chiseling away the temporarily reserved part of the middle-partition; and (5) after the to-be-chiseled part of the middle-partition is completely chiseled, cleaning waste concrete slag, and conducting post-cast strip construction. According to the method for chiseling the mid-partition ofthe underground engineering group pit, in the construction process, the temporary part of the mid-partition is reserved to serve as a temporary bearing structure in the construction process, and safety in the construction process can be well guaranteed. In the chiseling process, the quality of a chiseled hole can be well controlled, and the construction efficiency is high.

The invention relates to the technical field of basement storey addition underpinning and discloses a basement storey addition underpinning construction method used for performing basement storey addition underpinning on a building structure. By performing construction to form a pile-column integral structure which comprises a cast-in-place pile arranged under an elevation position at the bottom of an added basement storey and a steel pipe column arranged in the added basement storey firstly, a supporting structure used for supporting a building structure at the upper part of the added basement storey is wholly formed, wherein the supporting structure is steady in supporting and good in mechanical performance; and then construction of an underpinning beam is performed, and finally, earthwork construction of the added basement storey and construction of a top plate and a bottom plate of the added basement storey are finished, wherein the underpinning beam is arranged on the pile-columnintegral structure and is used for supporting the building structure at the upper part of the added basement storey. The construction manner effectively solves the problem that an original structure foundation is liable to generate settlement; and by adopting the steel pipe column, the construction method can effectively reduce the cross section area of a column and is beneficial to cleaning workof the surface of the column.

The invention discloses a method for realizing displacing and steering a building through adjusting diameters of rolling shafts. The steering is completed through changing the diameters of the rollingshaft before and after displacement; the direction adjustments of the rolling shafts are completed without being jacked by a jack; the additional internal force generated by the deformation caused bythe jacking is avoided; concrete for underpinning beams before and after the steering is simultaneously poured; moreover, the bottom elevations of before-steering and after-steering beams and the topelevations of tracks are consistent; the construction is convenient; the construction period is shortened; the before-steering concrete underpinning beams are mildly destroyed when the rolling shaftsare taken out, but the displacement after the steering is not influenced.

The invention discloses a blocking system for a water seepage crack of a basement wall body and a construction method thereof. The blocking system comprises the wall body with the water seepage crack. A groove is formed in the back water surface of the wall body and in the corresponding position of the water seepage crack. Water guiding pipes for guiding the water seepage in the wall body are horizontally arranged in the groove. One ends of the water guiding pipes abut against the internal water seepage crack and fixed to the wall body through a first layer of crack blocking layer buried at the bottom of the groove. A valve is arranged on the part, outside the first layer of crack blocking layer, of pipe bodies, wherein the valve is in an opening state at the time of water guiding and in a closed state after water guiding. A second layer of crack blocking layer is arranged in the interior, outside the first layer of the crack blocking layer, of the groove. The second layer crack blocking layer buries the water guiding pipes after completion of water guiding and the valve inside the groove, and the groove is filled and leveled up. A waterproof layer is laid outside the second layer crack blocking layer. The blocking system has the characteristics of safety, applicability and the like and has good popularization and practical value, and good economic benefit is produced after wide application and popularization.

The invention discloses an underground excavated spliced type underpinning structure on a lower part of an existing building base. The underground excavated spliced type underpinning structure comprises a rectangular steel pipe and a prefabricated part; shear pin keys are arranged on two opposite side walls extending along a length direction of the rectangular steel pipe; pin key grooves matched with the shear pin keys are formed on the prefabricated part; the prefabricated part is butt-jointed with the rectangular steel pipe through the shear pin keys and the pin key grooves; a horizontal prestress duct is formed in the rectangular steel pipe; a longitudinal prestress duct is formed on the prefabricated part; the horizontal prestress duct is penetrated through the prefabricated part; a horizonal prestress reinforcement is penetrated through the horizontal prestress duct; a longitudinal prestress reinforcement is penetrated through the longitudinal prestress duct; a grouting duct is formed on the prefabricated part. The invention also discloses a construction method for the underpinning structure. A method for combining the rectangular steel pipe with the prefabricated part is applied to the spliced type underpinning structure, so that onsite wet operation can be avoided, construction difficulty can be reduced and construction period can be shortened.