84results about How to "Reduce the cost of construction measures" patented technology

The invention discloses a giant cruciform combination column which comprises two pieces of T-shaped steel and a pieces of I-shaped steel, wherein the T-shaped steel is mounted at two sides of the I-shaped steel so as to form a cruciform column body structure with side plates; the upper part, the middle and the lower part of the column body structure are respectively provided with two layers of stiffening plates; studs are arranged on the side plates of the column body structure; corbels are arranged at the parts, connected with the stiffening plates, of the I-shaped steel. The invention further discloses a manufacturing method of the giant cruciform combination column. Based on the giant cruciform combination column and the manufacturing method thereof, the structure of the column is simplified to a maximum extent while the load-bearing capacity of the column is ensured, the raw materials and the cost are saved, and the effective usable area of a building is increased; the self-weight of the structure is reduced, and thus the structural seismic response is reduced.

The invention provides a detachable triangular scaffold and a steel truss assembly construction method. The scaffold is of a triangular connected structure, and comprises main vertical rods, bottom cross rods, top steel beams, connecting plates, diagonal rods, bolts and the like. The rods are connected by the bolts in a positioning manner, and positioning holes are reserved at the top of each steel beam and used for controlling the axis position of a steel truss. The detachable triangular scaffold is capable of achieving on-site repeated assembling of ultrahigh ultra-wide steel members, and can be widely applied to the field of steel structure assembly construction.

The invention relates to a device for integrally jacking a roof of a single-layer industrial factory building. The device is characterized by comprising three parts, namely a jacking device, a vertical force transfer device and a synchronous control device, wherein the vertical force transfer device is arranged on the ground of the factory building; and the jacking device is fixed above the vertical force transfer device and is connected with the synchronous control system. The construction method comprises the following steps of: enabling an upper section of an adjustable steel support column to be positioned in a freely-retractable state; fixing an inverted T-shaped counterforce cross beam, starting the synchronous control system and jacking a conventional shot-travel hydraulic jack to one travel height; fixing the upper section of the adjustable steel support column to enable the inverted T-shaped counterforce cross beam to be positioned in a freely-retractable state, starting the synchronous control system, retracting the jack and upwards hoisting the inverted T-shaped counterforce cross beam to be a travel height; and repeating the step (1) and the step (2) until an original roof frame beam is jacked to the designed elevation and realizing integral jacking of the roof of the single-layer industrial factory building. In the jacking process, an inserting pin of the adjustable steel column and an inserting pin at the end part of the counterforce cross beam are extracted out or inserted into conveniently and quickly by just arranging constructors according to the sequenceof jacking cycle.

The invention discloses a steel-structure-polyurethane-material underground pipe gallery or working well. The steel-structure-polyurethane-material underground pipe gallery or working well comprises pipe gallery units. Each pipe gallery unit is defined by steel-structure polyurethane wall plates. Each steel-structure polyurethane wall plate comprises two wall plate bodies arranged in parallel, wherein a steel structure is located between the two wall plate bodies, and the portion, on the periphery of the steel structure, between the two wall plate bodies is poured with polyurethane concrete. Two end openings of the one or more pipe gallery units are plugged to form the steel-structure-polyurethane-material underground working well. The multiple pipe gallery units are connected end to end to form the steel-structure-polyurethane-material underground pipe gallery. Intensity is higher, installing and construction are more convenient and rapider, the water resistance is better, the service life is longer, and the multiple purposes are achieved.

The invention discloses a basement tower crane foundation construction method and structure adopting a reverse construction method. The method comprises the steps as follows: a tower crane is directly mounted on a basement roof by means of a permanent basement structure; the basement roof is reinforced by a cross beam; and a tower crane foundation is constructed on the cross beam, and the tower crane foundation, the cross beam and the basement roof are connected into a whole through steel bars. At the early stage of design, permanent basement structure pile foundations, steel pipe columns and the basement roof are utilized, and through reexamination and checking calculation of an original design institute, a tower crane model meeting selection requirements is directly mounted on the basement roof for mounting construction. The basement tower crane foundation construction method and structure adopting the reverse construction method have the advantages as follows: the permanent basement structure is utilized, a tower crane foundation pile and a built-up steel column are omitted, reserved holes in the basement structure are reduced, secondary construction of the basement structure is reduced, the construction period is shortened, the potential safety hazard is reduced, the construction measurement expense is saved, and meanwhile, normal use of the tower crane and safety of the permanent basement structure are guaranteed.

The invention discloses a supporting method for super-large deep foundation pit construction in a soft soil area. The supporting method is characterized in that the supporting method mainly includes anovel buckle steel pipe and Larsen steel plate combined system and is suitable for supporting measures of super-large super-scale deep foundation pit foundation construction of the soft soil area. Conventional super-large super-scale foundation pit excavation supporting measures in the soft soil area are combined, the measures utilize buckle steel pipe piles and Larsen steel plate piles, the problem that during construction of deep foundation pits in the soft soil area and near the edges of important buildings, the cost of the conventional construction technological measures is high is mainlysolved, the cost of the construction measures of the supporting method is low, the period is short, and pollution to the surrounding environment is avoided.

The present invention discloses one kind of composite bridge caisson pile foundation and its reverse construction process. After the bridge caisson is sunk to site, piling construction is performed inside the caisson to form pile with upper part connected to the caisson integrally and to constitute composite caisson pile foundation. The construction process includes the steps of prefabricating caisson in land, floating the caisson and setting the caisson in dredged sea bed, driving steel pipe pile through the pre-formed hole in the bottom of the caisson through operation inside the caisson, performing the upper structure construction simultaneously, pouring concrete to connect the bottom plate of the caisson with the steel pipe pile. The present invention has the load borne commonly by thecaisson and the pile, and is suitable for bridge construction in deep sea and soft soil foundation.

The invention provides a horizontal-moving type operating platform device applied to construction of a creasing curtain wall. The horizontal-moving type operating platform device comprises a modular lower-hanging type platform system and an upper-hanging type overhung platform system, the modular lower-hanging type platform system comprises an operating platform and a hanging system, and the hanging system is composed of a hanging column, a guide rail, a guiding module, a braking device and a power sliding vehicle; the operating platform is assembled through the hanging column and the guidingmodule and is hung on the guide rail, and the operating platform takes the power sliding vehicle as a power source and moves front and back in the direction of the guide rail; and the upper-hanging type overhung platform system comprises an overhung platform body, a guiding module, a guide rail, a rebar hanging ring and a fixing connecting piece, the overhung platform body and the guiding module are assembled into a whole and are buckled on the two sides of an inner edge of the guide rail, the tail end of the overhung platform body is fixed to an overhung main structure by adopting the rebar hanging ring, and the bottom end of the overhung platform body is fixed to a hanging column connecting joint of a lower-hanging type platform by adopting fixing connecting pieces. The horizontal-movingtype operating platform device makes up defects of conventional hanging basket and scaffold construction, and it is ensured that construction is safe and controllable, and the quality and the precision meet design requirements.

The invention provides a mounting method of a special-shaped steel structure and a mounting method of a steel grid structure. The mounting method of the special-shaped steel structure comprises the following steps that the special-shaped steel structure is sequentially divided into a vertical section, a transition section and a horizontal section from high to low according to the structural characteristics of the special-shaped steel structure; an operation platform is erected on the external wall of a tower building, and the operation platform is used to fix scattered pieces in the vertical section and connect the scattered pieces integrally; a plurality of first temporary supports are arranged on the roof of a skirt building at the periphery of the tower building, and the transition section is hoisted to a set mounting position; and a plurality of branch columns are mounted on the roof of the skirt building, and the branch columns are used as the centers to assemble all the scatteredpieces of the horizontal section and connect the scattered pieces into a whole. According to the mounting method of the special-shaped steel structure and the mounting method of the steel grid structure, by using a top-down reverse construction method, the vertical section, the transition section and the horizontal section are sequentially mounted, the tower building is used as the center, mounting is carried out from inside to outside, the site utilization rate can be increased greatly, and meanwhile the control over the structural stability is more reasonable.

The invention discloses a high-upright formwork integrated construction technology suitable for construction of an upright with the height over 3 m. A hoop and an operation platform which are assembled are integrally lifted and arranged on the upright from the top in a sleeving manner to the corresponding elevation so as to be fixedly installed; a lower-section formwork is then installed; an operator stands on the lower-section formwork, so that an upper-section formwork and the operation platform are integrally lifted; then a maintenance net and a vase-section formwork are integrally lifted and installed in sequence, and the operator gets on and off the operation platform through an elevator cage; then reinforcing steel bars are bound upwards from the bottoms in the formworks, and concrete is poured after binding is conducted; and finally, the vase-section formwork, the upper-section formwork, the lower-section formwork and the operation platform are detached. Compared with erection of a conventional scaffold, the formwork integrated construction technology can be used for reducing the measure cost by over 90%, and the construction safety and the construction quality can be guaranteed.

The invention relates to a concrete beam end and curved surface shear wall construction joint disposal device. The concrete beam end and curved surface shear wall construction joint disposal device comprises a concrete beam and a concrete shear wall. A construction joint is formed in the junction of the end of concrete beam and the concrete shear wall. A section steel shear resisting key is pre-embedded in the construction joint and penetrates through the construction joint, one part of the section steel shear resisting key is located in the concrete shear wall, and the other part of the section steel shear resisting key is located in the concrete beam. The invention further relates to a concrete beam end and curved surface shear wall construction joint disposal method. According to the concrete beam end and curved surface shear wall construction joint disposal device and method, due to the fact that the section steel shear resisting key is embedded, the high shear resistance of the section steel shear resisting key and the feature that anchor bars are welded on the section steel shear resisting key are utilized to solve the problem of force transmission between beam-shear wall joints; and due to the fact that a dense-hole steel wire mesh serves as a formwork of pouring of the construction joint, the penetration of rebars of the concrete beam and the section steel shear resisting key is facilitated, the adhesion force of the construction joint is increased, the construction measure cost is saved, the construction period is shortened, and the concrete beam end and curved surface shear wall construction joint disposal device and method have certain engineering application value for spatial abnormally-shaped concrete beam construction.

The invention relates to a construction method of a novel assembled mixed frame structure system. The construction method comprises a foundation, a prefabricated concrete superposed beam, a steel deckcombined floorslab and a thin-walled steel pipe concrete combination column. The thin-walled steel pipe concrete combination column comprises a U-shaped steel bracket of a joint, a thin-walled steelpipe and steel pipe inner concrete. The prefabricated concrete superposed beam comprises a prefabricated beam and a cast-in-place part. The method can be used for hoisting the prefabricated beams of the multilayered frame structure system simultaneously by adopting a stepped construction method, so that the construction progress is accelerated and the cost is lowered.

The invention provides a side slope anchor rod construction device and a rapid construction method. The side slope anchor rod construction device comprises a movable bearing trolley, the movable bearing trolley is provided with an operation table and a moving device connected with the operation table, the moving device comprises a supporting mechanism, the supporting mechanism is located below theoperation table, and an adjusting mechanism is arranged below the supporting mechanism. The side slope anchor rod construction device and the rapid construction method are economical, efficient and safe, and the problems that an auxiliary support is needed during side slope anchor rod construction, fixing is troublesome, the device is affected by the side slope terrain, a drilling machine is prone to moving during work, the drilling quality is unstable, and the construction safety is low are well solved.

The invention discloses a combination frame structure system with rigid-connection joints. The combination frame structure system comprises a prefabricated concrete superposed beam, a steel bearing plate composite floor and a thin-walled concrete-filled steel pipe composite column, the prefabricated concrete superposed beam comprises a prefabricated beam and a cast-in-place part, the cast-in-placepart is internally provided with a beam hogging moment rebar, and the prefabricated beam comprises a main bar and a beam end bottom steel plate; and the steel bearing plate composite floor comprisesa steel bearing plate and reinforced concrete poured on the steel bearing plate, the thin-walled concrete-filled steel pipe composite column comprises a thin-walled steel pipe, steel pipe inner concrete and a joint U-shaped steel corbel, the thin-walled steel pipe is provided with a through hole for reinforcing the steel plate and penetrating the hogging moment rebar at the joint, and a groove-shaped through hole is formed in the bottom of the joint U-shaped steel corbel. The composite column has large bearing capacity, the prefabricated beam can be hoisted at the same time in multiple layers,the beam hogging moment rebar directly penetrates through the joint in the joint area, the lower beam end steel plate is connected by overhead welding after the floor constructed is completed, the construction is convenient, the beam end lower rebar has direct and reliable force transfer, the structure is simple, and the comprehensive cost is low.

The invention discloses a reinforced concrete bridge suspension anchor type operation platform and a construction method thereof. The operation process mainly comprises the steps of performing construction preparation; erecting a floor type operation platform; carrying out positioning and drilling; performing glue injection, and installing expansion bolts; anchoring vertical rods; erecting longitudinal rods and transverse rods; laying scaffold boards; installing a protective fence and a safety net; and carrying out inspection and acceptance. The suspension anchor type operating platform builtby the construction method comprises bolts, hanging rods, hanging ring locking pieces, longitudinal rods, transverse rods, fasteners and scaffolds. By means of the design, the influence of on-site geography and hydrology is effectively overcome, the construction period is shortened, the construction measure cost is saved, and the platform is firm in structure and high in safety and stability through mutual fixation of the expansion bolts, the hanging rods, the fasteners, the hanging ring locking pieces and the scaffolds.