31results about How to "Reduced measure fee" patented technology

The present invention adopts construction on ground surface, and makes post-tensional pile-body prestressed anti-slide pile. Its structure is as follows: firstly-poured concrete interior has steel reinforcement cage, cage edge interior has corrugated pipe, in the corrugated pipe interior a stranded wire is placed, two ends of said stranded wire are extended from said corrugated pipe, lower end of said stranded wire is connected with anchorage device of anchored part in the pile bottom, its upper end is connected with anchorage device of pile top, and the upper portion of anchorage device of pile type has secondary poured concrete. Said invention also provides its construction method.

The invention relates to a layered construction method for an oversized concrete beam of a structural transfer floor of a high-rise building. The method comprises the following steps: (1) measuring a construction site and paying off, binding a vertical component reinforcing steel bar, then supporting a vertical component template, and then pouring vertical component concrete; erecting a bearing frame, then laying a bottom die of a beam-slab, and then binding a beam reinforcing steel bar; (2) installing a side die and a plate die of the beam-slab; (3) pouring the lower beam concrete for the first time, then binding a plate reinforcing steel bar and reserving and pre-burying water and electricity lines and maintaining concrete for the first time; and (4) pouring the upper beam plate concrete for the second time, then maintaining concrete, and removing the template. By adopting concrete pouring and reinforcing steel bar binding of the method, the running water beats are reasonable, so that the construction period is shortened, the construction safety is improved, and the construction cost is also lowered.

The invention discloses a large-span net rack external expansion assembly integral jacking construction method, which belongs to the field of building construction. The technical problem to be solvedby the invention is how to reduce the construction difficulty of large-span net rack structures of a spherical shell, a cylindrical shell, a flat plate and various special-shaped stadiums under complex conditions, reduce high-altitude operations, improve safety, and ensure the construction quality. The adopted technical scheme is that the large-span net rack external expansion assembly integral jacking construction method comprises the following steps of: assembly and jacking, that is, the net rack is assembled on the ground, and when the net rack is assembled to a stand position, a jacking bracket is installed, and the jacking work is stopped when the net rack is jacked by using the jacking bracket to a preset height to meet the next grid assembly; symmetrical external expansion assembly,that is, after the jacking work is stopped, symmetrical external expansion assembly is performed on completed space stiffness units from the center of the net rack to make the net rack continue to extend to the surroundings; adjustment of the number and locations of jacking points, that is, when performing expansion assembly outward, the number and positions of the jacking points of the net rackare adjusted according to calculation results; and unloading and dismantling.

A method for off-site construction of large-span beam string truss beam include such steps as establishing three-dimensional solid model according to construction drawing, automatically lofting and numbering component according to three-dimensional solid model, transporting that component to construction site after factory processing is completed, and removing the component from construction site.According to the span and section form of the beam string truss beam, the assembled tire frame is made on the external surface of the venue, and temporary support frames are respectively made on bothsides of the venue, and the temporary support frames are located at the lower and middle parts of the beam string truss beam; The beam body of a beam string truss beam is divided into two sections and assembled on the assembled jig by the components. The two sections of beams are hoisted on the temporary support frame through the lifting equipment outside the venue, and the whole section of beamsis welded after being adjusted and corrected. The beam string truss beam is constructed by off-site two-machine lifting, which avoids the problems of lifting machinery entering into the stadium or being unable to radiate. The installation of the upper steel structure and the construction of the competition site are carried out simultaneously, which greatly shortens the construction period.

The invention discloses a hyperbolic hopper template and a support method thereof of a coal storage bunker and solves the problems that deviation of a discharge outlet of a hopper is commonly caused, concrete thickness of the hopper is non-uniform and construction quality is affected. The hyperbolic hopper template comprises an inner ring assembly template and an outer ring assembly template, wherein the inner ring assembly template comprises a first inner ring template, a second inner ring template, a third inner ring template, a fourth inner ring template, a fifth inner ring template and a sixth inner ring template, which are sequentially connected from bottom to top, the first to the fifth inner ring templates are 1000 mm thick while the six inner ring templates is 650 mm thick. The outer ring assembly template comprises a first outer ring template, a second outer ring template, a third outer ring template, a fourth outer ring template and a fifth outer ring template, which are sequentially connected from bottom to top.

The invention relates to a formwork strengthening and supporting method of an inverted-horn-shaped arc-shaped shear wall. The formwork strengthening and supporting method comprises the following steps that a line is placed according to drawing sizes and an inner formwork is installed; then shear wall reinforcing steel bars is installed; after conceal inspection of the reinforcing steel bars is finished, an outer formwork is installed; square wood bars are installed on the inner formwork and the outer formwork, a plurality of opposite-pulling bolts are installed at intervals, and the square wood bars, the inner formwork and the outer formwork are fixed by the opposite-pulling bolts; a central stand column is erected at an arc-shaped central point by using scaffolding tubes; holes are formed and steel stranded wires penetrate through the inner formwork and the outer formwork, after the steel stranded wires penetrate through the outer formwork, the scaffolding tubes are further arranged on the outer side of the outer formwork, after bypassing the scaffolding tubes the steel stranded wires penetrate back to be fixed on the central stand column by using lock buckles; penetrating of steel stranded wires is repeated symmetrically until all steel stranded wires are run out; and the reinforcing condition of a supporting system is checked and reinforcing for the supporting system is finished. The formwork strengthening and supporting method can greatly reduce supporting or even do not need supporting, so that relative measure fee is reduced.

The invention belongs to the field of tunnel engineering, and particularly relates to a construction method for transverse expanding excavation conversion when a tunnel section suddenly changes to a large-span section. According to the construction method, when the tunnel section enters the transition section of the suddenly-changed large-span section, firstly a preceding pilot tunnel is excavated, and then excavation expands towards the arch part of the suddenly-changed large-span section while excavating a following pilot tunnel; then 90-degree straight turning pilot tunnel expanding excavation is conducted in the side wall direction, during expanding excavation, a portal support is added to serve as temporary protection, and a portal cross beam is installed outside the large-span section contour line in the line direction; and after excavation is conducted to the position of a side wall arch foot of the large-span section, an annular arch frame of the large-span section is erected on the lower side of a portal cross beam at a time. According to the construction method, the portal support is large in operation space, high in safety and convenient to construct, meanwhile, the portal cross beam is arranged on the outer side of a main tunnel primary support arch frame, extension or erection of the main tunnel annular arch frame is not affected, the portal cross beam and upright end wall portal vertical supports at the junction of the two sections can serve as permanent primary supports, and the dismantling workload of the temporary portal is reduced.

The invention relates to a fabricated construction platform of a horizontal superimposed structure. The platform comprises a precast beam, a supporting truss, platform plates, handrails, and protective parts. A plurality of groups of connecting parts are arranged at one side or two sides of the precast beam, and the connecting parts are arranged along the extending direction of the precast beam; the supporting truss is arranged on the connecting parts of the precast beam; the platform plates are provided with reinforcing structures, are placed on the supporting truss and are fixed with the supporting truss; each handrail comprises a handrail upright post and a handrail horizontal rod, and the handrails are mounted outside the platform plates; and the protective parts are arranged in the areas, where the platform plates are not arranged, of a secondary beam connecting structure of the precast beam, and the connection of the adjacent platform plates is achieved. The fabricated construction platform of the horizontal superimposed structure has the beneficial effects that mounting and dismounting are convenient, hoisting is conducted together with a prefabricated element, and the construction speed of a main body structure can be increased; a construction platform is prevented from being erected from a lower floor to a construction working face of the floor, and project measure cost is remarkably saved; and meanwhile, the equipment installation, the decoration and other procedures can be conveniently carried out on the lower floors as soon as possible, and the engineering construction progress is accelerated.