50results about How to "Improve construction rate" patented technology

The invention discloses a frame-type curtain wall rapid assembly construction method and system based on a BIM, and belongs to the field of curtain wall assembly construction. The to-be-solved technical problems are how to realize rapid assembly construction of a frame-type curtain wall and ensure the installation quality and performance of the curtain wall, according to the technical scheme, theframe-type curtain wall rapid assembly construction method includes the steps that three-dimensional model creation and adjustment of a curtain wall shell, curtain wall unit division, material component splitting and ordering are conducted through a BIM technology and a three-dimensional measurement technology, unit bodies of the frame-type curtain wall are assembled through centralized industrialprocessing, the processing quality of the frame-type curtain wall units is controlled by manufacturing standard parts, standard samples and using a three-dimensional scanning technology, site quick assembly construction of the frame-type curtain wall is completed through an integral hoisting technology, then treatment between layers is completed through a construction hanging basket or an elevating operating vehicle, and finally, rapid assembly construction operation of the frame-type curtain wall is realized. The invention further discloses the frame-type curtain wall rapid assembly construction system based on the BIM.

The invention discloses a fusible high-performance elastomer modified asphalt waterproof roll. The fusible high-performance elastomer modified asphalt waterproof roll sequentially comprises a heat-sensitive fusible OPP (o-phenylphenol) isolating membrane, a fusible elastomer modified asphalt, a polyester reinforcement, fusible elastomer modified asphalt and a heat-sensitive fusible OPP isolating membrane from top to bottom. When the fusible high-performance elastomer modified asphalt waterproof roll is applied, the construction efficiency can be improved, the energy consumption is reduced, and the waterproof roll is energy-saving, environment-friendly and long in service life and has good economic benefits and social benefits. The experiment proves that the fusible high-performance elastomer modified asphalt waterproof roll disclosed by the invention has the advantage that the construction rate can be improved by 10-20 percent.

The invention discloses a rubber water stopping plug which is used for plugging a hole remained after an opposite-pull bolt is detached. A construction method comprises the following steps: after detaching an underground concrete outer wall template, eliminating a PVC (Polyvinyl Chloride) pipe with the depth which is not smaller than the length of the rubber water stopping plug by taking an outer wall as a starting point; carrying out mounting type plugging on the hole by utilizing the rubber water stopping plug; and coating an end close to the outer wall with a sealant, and densely plugging the end and a pipeline by adopting expanding type polymer cement waterproof mortar. The common quality problem that the opposite-pull bolt is not plugged tightly is solved and the risk of leaking water along the hole at a later period is eliminated.

The invention discloses a demolition construction method for an overpass existing line arch bridge. The demolition construction method comprises the steps: 1, erecting a protective shed frame; 2, carrying out static crushing demolition on the arch blasting demolition structure; 3, manually removing the blasting protection layer; 4, cutting the removed arch ring; 5, hoisting the arch ring to be hoisted; and 6, dismantling the under-arch structure. The method is simple, reasonable in design, easy and convenient to construct and good in using effect; the protection shed frames fixed to the frontside and the rear side of the removed arch bridge are adopted for effective protection, meanwhile, the structure on the arch of the removed arch bridge is removed in the mode that static crushing andmanual chiseling are combined, it is guaranteed that a plain concrete arch ring cannot be damaged in the static crushing process, and an existing spanned railway line cannot be disturbed. After the arch ring is exposed, the removed arch ring is cut and decomposed through a rope saw and then hoisted and removed, then the under-arch structures on the left side and the right side are rapidly removed,the construction period can be effectively shortened, the arch bridge removing efficiency is improved, and the removing process is safe and reliable.

The invention discloses a construction method of a concrete trestle and foundation pit connection joint structure. The construction method comprises the steps that firstly, a center area of a foundation pit is determined, and a trestle construction area is selected; secondly, a first supporting structure is constructed in the foundation pit; thirdly, a second supporting structure is constructed in the center area of the foundation pit, and then a horizontal platform is arranged above the second supporting structure; fourthly, a steel bar structure of a first slope ramp is constructed in the position, between the horizontal platform and the edge of the foundation pit, above the first supporting structure, then concrete is poured onto the steel bar structure to form the first slope ramp formed by the reinforced concrete, and antiskid strips are fixed on the upper surface of the first slope ramp; fifthly, a buffer platform parallel to the ground is arranged in the position, above the foundation pit, on the ground and connected with the first slope ramp; and sixthly, a second slope ramp is constructed between the buffer platform and the ground. The concrete trestle and foundation pit connection joint structure is firm in device and safe in driving, and the earthwork transportation efficiency is improved by 12%.

The invention provides a vertical shaft traction cable clamp with guiding and avoiding functions. The vertical shaft traction cable clamp comprises at least one group of clamp single-pieces, wherein each clamp single-piece comprises a hollow housing and a clamp body; the clamp body comprises a cable clamp and a steel wire rope clamp; a housing comprises a circular table body and a cylindrical barrel; each cable clamp comprises a U-shaped bolt, an arc-shaped board and angle steel; and each steel wire rope clamp comprises a single line clamp which is in one-to-one correspondence to the U-shaped bolt. According to the technical scheme applied by the invention, the vertical shaft traction cable clamp has the beneficial effects that: firstly, the integral structure is simplified, and space usage is small; secondly, the housing achieves the dual effects of protecting and guiding, i.e., the housing achieves the protecting effect for the clamp bodies arranged inside the vertical shaft traction cable clamp; and by virtue of the design of the circular table body, the housing can effectively avoid horizontal barriers along the conical surface of the housing, so that quick hoisting of cables is realized; and thirdly, by virtue of the structures of the cable clamps as well as a combined design of the cable clamps and the steel wire rope clamps, damages to the cables in a hoisting process can be reduced to the greatest extent, and the safety and hoisting speed in the hoisting process can be improved.

The invention relates to an assembled beam column structure and a construction method thereof and relate to the technical field of building structure design and construction, against the problem thatexisting prefabricated components of an prefabricated building and cast-in-place part connection nodes are disposed at the intersecting nodes of beam columns, so that the structural stress performanceis poor, resulting in unreasonable force. The assembled beam column structure includes a prefabricated section, a cast-in-place section and a plurality of structure columns, wherein the prefabricatedsection is at least one prefabricated primary beam and at least one support which are prefabricated to be a whole, or at least one prefabricated primary beam and at least one prefabricated secondarybeam which are prefabricated to be a whole; the cast-in-place section is connected between two adjacent prefabricated primary beams and/or prefabricated secondary beams, the cast-in-place section is formed by on-site concrete pouring, and the connecting node of the prefabricated section and the cast-in-place section has a distance of L/4 to L/3 from the center of the adjacent support or prefabricated primary beam; the structure columns are connected to the bottom of the support; and L is the calculated span of the beam.

The invention discloses a fabricated shear wall with a steel plate stud combined type diagonal bracing and a construction method. The fabricated shear wall comprises a first shear wall unit and a second shear wall unit, wherein the first shear wall unit and the second shear wall unit are stacked up and down, and the first shear wall unit and the second shear wall unit are connected and fixed witha connecting mechanism; the first shear wall unit and the second shear wall unit are provided with shear wall structures; a shear wall frame is formed by enclosing a left concealed column, an upper concealed beam, a right concealed column and a lower concealed frame; a first facade steel plate and a second facade steel plate are fixed to the front side and the rear side of the shear wall frame; diagonal bracing members are fixed in the shear wall frame; and each diagonal bracing member comprises two steel plates, the two steel plates cross each other to form an X-shape structure, studs are arranged on the steel plates, and concrete is poured in the shear wall units. According to the fabricated shear wall with the steel plate stud combined type diagonal bracing and the construction method,the in-plane lateral stiffness, shear bearing capacity, bending bearing capacity, ductility and energy consumption of the shear wall are improved through the design of the diagonal bracing members, the shear wall units can be pre-installed in advance, and on-site construction is facilitated.

The invention provides a single-unit hydraulic dredger. The dredger comprises a hull, a control device, a driving mechanism and a water spraying device, wherein part of the control device is arrangedon the hull and used for computing preset angle and preset pressure intensity when high-pressure water spraying is conducted by the water spraying device and controlling the driving device to drive the water spraying device to move to a preset position to perform high-pressure impacting on sludge, the driving device is arranged on the hull and used for driving the water spraying device to synchronously move to a preset position according to a preset trajectory to ensure the water spraying device can perform high-pressure impacting on the sludge according to a preset angle, and part of the water spraying device is arranged on the hull and used for performing high-pressure water spraying according to the preset pressure intensity to flush away the sludge at the bottom of a port. The dredgerhas the advantages that the problems of lower cleaning efficiency and poorer cleaning effect when port sludge is cleaned by an existing dredger are solved.

The invention relates to a cast-in-place gypsum hollow wall with a non-dismantling formwork and a construction method of the cast-in-place gypsum hollow wall with the non-dismantling formwork, the cast-in-place gypsum hollow wall with the non-dismantling formwork comprises the non-dismantling formwork, a cast-in-place gypsum hollow wall and a plastering layer, and the non-dismantling formwork is composed of a steel structure framework and a face plate which are assembled on site. The steel structure framework is composed of a vertical end plate, a transverse bottom plate, transverse reinforcing ribs and a hollow pipe positioning plate. The face plates are high-strength calcium silicate plates, bolt holes are formed in the high-strength calcium silicate plates in advance, the high-strength calcium silicate plates are arranged on the long face and the high face of the steel structure framework, the inner sides of the high-strength calcium silicate plates are coated with waterproof paint, and the cast-in-place gypsum hollow wall is located in the non-dismantling formwork. A hollow pipe is arranged in the cast-in-place gypsum hollow wall body, the plastering layer is located on the outer side of the face plate, glass fiber gridding cloth is arranged in the plastering layer, the steel structure framework and the face plate are prefabricated in a factory, the non-dismantling formwork is obtained through field assembly, transportation is convenient, and meanwhile the flatness of the wall body and the construction efficiency are improved.

The invention discloses a rapid construction method for a level crossing rail, relates to the technical field of rail construction methods, and mainly adopts a prefabricated rail integration unit anda crossing plate to form most of rail structures in advance. In the construction site, implementation personnel only need to correspondingly construct the roadbed supporting layer, the mortar adjusting layer and the pavement paving layer, the cast-in-place amount of the whole construction site is reduced, and therefore the construction speed of a project is increased.

The invention relates to the technical field of mine construction, and particularly discloses a sleeve wall construction method based on a structural formwork. After a shaft design drawing is completed, the prefabricated structural formwork is designed and machined according to the shaft design drawing, and a prefabricated formwork is obtained; and after steel bars are bound, the prefabricated formwork is erected, and then concrete pouring is conducted; and after concrete pouring is completed, an upper-layer formwork is directly mounted, and pouring is conducted in sequence. Through the construction method, the formwork does not need to be dismounted, the construction progress can be accelerated, and the construction speed is increased.