59results about How to "Save turnover materials" patented technology

The invention relates to a high-altitude long-span overhanging corridor type reinforced concrete structure and a construction method, wherein the corridor part is a stiff beam structure; with own bearing capacity of a profile steel, a beam template supporting system is a hung template supporting system in such a manner of fixing a square steel by means of a U-shaped screw and a nut; a floorslab is a self-supporting steel bar truss template which is welded to a pre-embedded steel plate on the stiff beam by means of a pin; and a steel platform is arranged on a corresponding floor at the lower part of the corridor as an operating and safety protection platform for template support construction. The high-altitude long-span overhanging corridor type reinforced concrete structure and the construction method have the advantages that: the template supporting construction method, according to which the operating platform is built from H-steel or profile steel beams, the stiff beam is hung and is self-supported and the floorslab is self-supported, is employed, so that the problem of difficult template supporting of the high-altitude long-span overhanging corridor structure, the revolving materials are greatly saved, the construction cost is reduced, the construction progress is accelerated and the safety is ensured; and the steel plate is pre-embedded on the stiff beam, so that the floor bearing plate is effectively connected with the stiff beam and the floor bearing plate and the stiff beam are capable of acting together to ensure the safety of the structure.

The present invention relates to a method for installing a large span steel truss on high altitude. The method comprises the steps of arranging embedded part on the structure girder at two sides of the designed position of the steel truss, then installing extensible guide on the embedded part, and at last assembling a specialized steel structure tackle. Firstly, a large tonnage hoisting machine is used for hanging the steel truss which is wholly assembled underground to two tackles that are arranged on station. Afterwards, the steel trust is parallelly moved to the installation position through the synchronous slippage of two tackles on the extensible guide. Lastly, the two-end capitals of the designing position of the steel truss are installed with an independent holding pole, a chain block and a pulley assembly. These hoisting apparatuses are used for hanging the longeron from the tackle. The longeron of the lengthened part is cut and the steel truss is installed to the position according to the design requirement. Compared with the traditional high altitude dispersed splitting method for building whole surface of scaffold, the installing method provided by the invention subtly settles many abuses of difficulty for controlling the construction quality, long construction period and the like in the traditional method. The manpower and considerable material transportation are saved and the construction quality can be effectively guaranteed. Various requirements of the designing and constructing are excellently and rapidly satisfied.

The invention discloses a beam plate post-cast strip template support system and a construction method, wherein a main template support body supports all beam plates arranged at two sides of a post-cast strip, and support latticed columns are independently supported at two sides of the post-cast strip. After the main template support body is built, and when bottom templates of the beam plates are paved, the post-cast strip is unavailable without installation. When the main template support body is built, the bottom templates can be wholly paved, or the support latticed columns can be independently paved, so that the construction speed can be accelerated; the independent latticed column is convenient to uniformly set and wholly distribute; the whole template of a main template support system can be disassembled, and only the latticed columns can be remained to support, so that the mass of revolving materials can be saved, and the inconvenient material transportation traffic caused by the isolation and division of a post-cast strip-supported mould base in a basement can not be avoided; and before the concrete arranged at two sides of the post-cast strip is cast, the region is convenient and thorough to clean, and the construction quality of the post-cast strip can be preferably guaranteed.

The invention relates to integral slip device and method of a floor steel pipe column bracket of a bridge end bay closure section construction. The device comprises a floorstand, a drawing mechanism and two slip tracks (5) symmetrically arranged on an expanded foundation (1), wherein two slip steel plates (20) are arranged on each slip track, and the slip steel plates move on the slip tracks under the action of the drawing mechanism; the lower parts of the slip tracks are supported on the expanded foundation (1) through a plurality of track leveling supporting seats (4); and the supporting seats have the effect of leveling and ensures that the whole tracks are horizontally arranged on the expanded foundation (1). The method comprises the following steps of: doing preparation works, measuring an elevation, mounting the floorstand and the drawing mechanism, implementing integral slip, and the like. The invention can effectively solve the problem of displacement of the whole bracket system in construction environments of large height and difficult going in and out of mechanical equipment and has the advantages of simple move mode, bracket dismounting procedure saving, turnover material loss reduction, construction period shortening, and the like.

The invention discloses an assembled concrete structure construction method. According to the construction method, a reversed construction procedure is adopted for installation of a vertical component of a currently constructed floor, that is, before connection assembly of a horizontal component of the currently constructed floor, the vertical component connected to the upper portion of the horizontal component is hoisted firstly, and finally connection concrete is poured at a time to connect the horizontal component with the vertical component of the currently constructed floor into a whole. The construction method adopts the reversed construction procedure, so that construction links are reduced, and the construction period is shortened; the method is suitable for assembled concrete building construction for structure systems such as precast shear walls, composite wallboards and frameworks, and has the advantages of convenient construction, time saving, economy, environment friendliness and the like; and meanwhile, the requirement for identical performance as a cast-in-place structure is met.

The invention relates to an ultra-deep large-section square supporting pile and a construction method thereof. The ultra-deep large-section square supporting pile is arranged on one side of a foundation pit close to a metro shield area and comprises a pile hole retaining wall and a pile core, wherein the pile hole retaining wall and the pile core both have cast-in-place reinforced concrete structures; the pile hole retaining wall is formed by splicing sections of square protecting cylinders; inner lateral surfaces of the square protecting cylinders are inclined planes which are inclined to the pile core from bottom to top; a lug boss is arranged at a seam of upper and lower two sections of square protecting cylinders and on one side of the upper end face of the lower square protecting cylinder close to the pile core; and double-slurry liquid composed of sodium silicate and cement paste is filled in a gap between the lug boss and the square protecting cylinders. The anti-skidding capacity of the ultra-deep large-section square supporting pile is strong, so that the foundation pit support construction and the metro shield construction are no longer conflicted after the supporting pile is adopted; the foundation pit support construction and the metro shield construction can be performed alternately; and the construction period of the foundation pit support is greatly shortened.

The invention discloses a truss plate which a steel bar truss and a bottom mold. The steel bar truss comprises a plurality of web rod groups, upper chord steel bars and two lower chord steel bars, wherein the web rod groups are arranged in the length direction of the bottom mold, two ends at open positions of the web rod steels of the adjacent web rod groups are fixedly connected, the upper chord steel bars are arranged in the length direction of the bottom mold and are fixedly connected to the tip ends of all web rod groups, the two lower chord steel bars are arranged in the length direction of the bottom mold and are fixedly connected to the two ends at the open positions of all the web rod groups respectively, fasteners are arranged on two sides of each lower chord steel bar and are provided with circular-arc clamping grooves for clamping the lower chord steel bars in the sides with respect to the lower chord steel bars, and fixing bolts for fixedly connecting the fasteners and the bottom mold are arranged on the fasteners. The truss plate can be processed in a factory in a unified mode, laying can be directly performed in a site after machining is completed, field welding is decreased, and accordingly the construction speed is improved.

The invention relates to a steel reinforced concrete beam pouring and tamping support-free suspension molding plate structure and a construction method. Two sides of a steel beam of the structure arerespectively provided with a suspension rod, the upper portion of the suspension rod is fixed on an upper wing of the steel beam, the lower portion of the suspension rod is fixed on a channel steel purlin of a beam bottom mold, and the distance of the channel steel purlin along the beam is 1000mm; the bottom of channel steel is fixedly connected with the suspension rod by virtue of two nuts; and abeam molding plate is fixed on two side surfaces of the beam by using a split bolt along the height direction. The construction method comprises the following steps: (1) installing a section steel column; (2) installing a section steel beam; (3) arranging a beam molding plate system; (4) installing a beam molding plate support-free suspension system; and (5) pouring the steel reinforced concrete.By sufficiently utilizing the bearing capability of the section steel, the beam molding plate is suspended on the section steel beam, before the concrete is hardened, a section steel skeleton is usedas a bearing stress system, no support is arranged below the molding plate, the circulation material is saved, and the construction speed is increased. The steel reinforced concrete beam pouring andtamping support-free suspension molding plate structure is more apparent in advantage in the construction process of the large-sectional and high altitude section steel beam concrete.

A supporting system of a pre-stressed concrete laminated slab of a shear wall structure belongs to the field of building construction and comprises a quadruple shear wall body, a first wood brace, a second wood brace and a laminated slab, wherein Z-shaped fixation parts are arranged uniformly on the upper annular circumference on the inner wall of the quadruple shear wall body, the lower part of the Z-shaped fixation part is fixed on the shear wall body, an U-shaped groove is formed between the upper part of the Z-shaped fixation part and the wall part, and the first wood brace is respectively clamped in the U-shaped groove of the row of Z-shaped fixation parts on the upper part of each shear wall body. The supporting system of the pre-stressed concrete laminated slab of the shear wall structure provided by the invention is beneficial in that (1) construction operations of this invention are simple and convenient and can guarantee a construction period; (2) installation quality of the laminated slab can be controlled easily, and evenness can be guaranteed; and (3) the laminated slab provided by the invention is definite in load carrying, safe and reliable, and eliminates safety hidden dangers of template frame collapse with a traditional manner.

The invention provides a construction process for constructing a prilling tower spraying layer by a slide mold device dragging a construction platform. The construction process solves the problem of construction difficulty of a prilling tower spraying layer. According to the method, a slide mold device for tube wall construction of a prilling tower is used for carrying the construction platform to realize the synchronous sliding ascending, after the construction platform slides and ascends to a position under the prilling tower spraying layer, the construction platform is disengaged from the slide mold device for constructing the tube wall of the prilling tower spraying layer, in addition, the construction platform is fixed to a corbel pre-buried in the tube wall, then, the slide mold device of the tube wall continuously and upwards slides and ascends for completing the construction of the tube wall, after the tube wall construction is completed, the construction platform is used, and in addition, a tower crane is matched for vertically conveying and constructing the spraying layer. When being used for constructing the prilling tower spraying layer, the method has the advantages that the construction is simple and convenient, a great amount of turnover materials are saved, the use of a large-scale crane and a large-scale hoisting machine is avoided, the cost is reduced, the economic benefits are good, and the operation platform is adopted, so that the high-altitude construction safety is well ensured. The method also obtains a good effect in practical application, and in addition, the method wins good reputation from owners.

The invention provides an integral joint type reinforced concrete laminated slab and a construction method. The integral joint type reinforced concrete laminated slab comprises adjustable double supports used for supporting a laminated prefabricated slab and a slab wall joint formwork system of the laminated prefabricated slab and an existing unreinforced side wall. The plate seam joint formwork system is used for superposing the prefabricated plates; the plate beam joint formwork system is used for superposing the prefabricated plates and the middle cast-in-place beams; according to the integral joint type reinforced concrete laminated slab, when a prefabricated laminated slab is manufactured, the integral lifting rib plates are used for replacing traditional truss steel bars, the lifting safety and stability are guaranteed, meanwhile, the perforated angle steel is pre-buried in the edge of the joint, a row of short bolts and a row of long bolts are embedded in the edge of the joint and are arranged in a staggered mode, and the overall joint type reinforced concrete laminated slab is formed. Under the condition that a prefabricated slab is not perforated, rapid installation of a joint formwork system can be achieved at the same time, meanwhile, the problems of slurry leakage, formwork expansion and the like during concrete vibrating and pouring are avoided, and the construction quality and attractiveness of post-cast strip concrete at the joint are improved.

The invention discloses a segmentation method for a prefabricated basic module of a ring main unit. The segmentation method comprises the following steps of dividing the prefabricated basic module ofthe ring main unit into a first plate module, a second plate module, a third plate module, a fourth wall module, a fifth wall module, a sixth beam module, a seventh wall module, an eighth wall moduleand a ninth beam module. The modules are mutually connected through self-compacting grouting or bolts and screw rods, so that construction is simple, wet operation at a construction site is basicallyavoided, the site management and control workload is reduced, and the safety civilization construction degree is increased; and meanwhile, by saving turnover materials, such as templates and scaffolds, the labor cost is greatly saved, the site construction cost, the labor cost and the management cost are greatly lowered, and the construction safety risk caused by long-time operation in a foundation pit is reduced at the same time.

The invention relates to the field of building construction, in particular to a special-shaped beam formwork quick mounting and dismounting structure utilizing electromagnetic force and a mounting and dismounting method thereof. The special-shaped beam formwork quick mounting and dismounting structure comprises a pair of fixing plates 1, a shaping block 2, an angle-variable fixing block 4 and a formwork 3, wherein the shaping block 2 and the angle-variable fixing block 4 are magnetically attracted between the pair of fixing plates 1 along the cross section shape of a special-shaped beam, and the formwork 3 is clamped between the shaping block 2 and the angle-variable fixing block 4. The fixing plates 1 comprise flat rectangular shells 1.1, horseshoe-shaped iron cores 1.2 arranged in the shells 1.1, coils 1.3 wound on the horseshoe-shaped iron cores 1.2, controllers 1.4 connected with the coils 1.3 and current stepless regulating switches 1.5 arranged on the controllers 1.4. After the shells 1.1 are electrified, a magnetizer plate 1.6 is formed, and rectangular grids are drawn on the magnetizer plate 1.6. The shaping block 2 comprises an internal shaping block 2.1, an external end part shaping block 2.2 and an external standard shaping block 2.3; and a magnetizer block is formed after the shaping block 2 passes through. The problem that material waste is caused due to the fact that when the special-shaped beam formwork is fixed, a large number of turnover materials need to be cut to erect a fixed scaffold is solved.