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548results about How to "Improve integrity" patented technology

Connecting structure of prefabricated concrete wall body

The invention provides a connecting structure of a prefabricated concrete wall body and belongs to the technical field of building structures. The connecting structure of the prefabricated concrete wall body comprises a first prefabricated concrete wall body and a second prefabricated concrete wall body, wherein longitudinal through holes are arranged at the positions close to the end faces of the first prefabricated concrete wall body and the second prefabricated concrete wall body, and the end faces of the first prefabricated concrete wall body and the second prefabricated concrete wall body are correspondingly provided with a plurality of transverse grooves. The end face of the first prefabricated concrete wall body is provided with a first U-shaped steel bar protruding outward from the inside of the wall body, the end face of the second prefabricated concrete wall body is correspondingly provided with a second U-shaped steel bar protruding outward from the inside of the wall body, the intersected portions of the first U-shaped steel bar and the second U-shaped steel bar form a rectangular steel bar ring, and cast-in-place concrete is arranged in spaces among the transverse grooves, the longitudinal through holes and the prefabricated concrete wall bodies. The connecting structure can improve integrity of an assembled monolithic concrete structure and the performance of a building structure.
Owner:初明进

Building construction method of inner wall surface

ActiveCN103046709AReduce plastering costsImprove integrityCovering/liningsSlagWater content
The invention discloses a building construction method of an inner wall surface and belongs to the field of buildings. The proportion of cement, fine sand and water granulated slag which are ingredients of mortar is 1:3:1. A method for plastering mortar includes processes of base layer processing, wall surface guniting, marl biscuit sticking on wall surface, screeding, bottom ash layer plastering, surface ash layer plastering and gridding cloth suspending on surface ash layer, wherein the process of gridding cloth suspending on the surface ash layer includes that when water content of the surface ash layer reaches to 30% to 40%, an upper end of a piece of gridding cloth is fixedly pasted by plain cement paste, then the middle portion of the gridding cloth is fixed by plain cement by a spot adhibiting method, and finally the entire wall surface is subjected to calendering by pressing the gridding cloth in the surface ash layer by the plain cement. According to the building construction method of the inner wall surface, the gridding cloth is suspended on the wall surface after ash plastering is finished, so that quality problems of hollowing, cracking and the like of the plastered surface layer can be solved. The building construction method of the inner wall surface has the advantages that the operation is convenient, practical problems can be solved, and a surface layer looks good.
Owner:SHANXI ERJIAN GRP

Local airport monitoring method and system based on multi-receiver

InactiveCN101419275AImprove monitoring and judgment abilityImprove integrityPosition fixationSatellite dataReal-time computing
The invention discloses a method for monitoring a local airport based on a plurality of receivers and a system. The method comprises the following steps: each reference receiver receives satellite data; pseudo-distance information is calculated according to the satellite data, wherein the pseudo-distance information comprises pseudo-distance corrected value of a wide area augmentation system, pseudo-distance corrected value of local monitoring and pseudo-distance corrected value of a monitoring system; the pseudo-distance information is sent to a processing center; the processing center detects the pseudo-distance information of each reference receiver, acquire a usable satellite according to the detecting result, calculates ultimate pseudo-distance corrected value of the monitoring system corresponding to the satellite, and sends the ultimate pseudo-distance corrected value of the monitoring system to an airborne client; and the airborne client calculates the position of an airborne user according to the ultimate pseudo-distance corrected value of the monitoring system and pseudo-distance value of the airborne user. The system comprises a plurality of reference receivers, the processing centers and airborne clients. The method improves integrity, usability and continuity of the system on the premise of guaranteeing precision of the system.
Owner:BEIHANG UNIV

Oblique crossing normal reinforcing 2.5D fabric and weaving method thereof

InactiveCN103603124AImprove integrityImprove longitudinal compressive performanceWoven fabricsYarnEngineering
The invention discloses oblique crossing normal reinforcing 2.5D fabric and a weaving method thereof. The fabric comprises a warp system, a weft system and a normal yarn system. The warp system is of a multi-layer warp structure. The number of warp layers can be designed according to required fabric thickness. The weft system is located on the left side or the right side of the warp system and is vertically introduced into the warp layers. The warp system and the weft system are mutually woven to form a layer-layer angle interlocking structure. The oblique crossing reinforcing 2.5D fabric is characterized in that normal yarn penetrates through the fabric thickness in the inclined direction along the diagonal direction of the thickness direction of lines where the normal yarn is located, one time of interweaving circulation of the normal yarn is completed after four machine moving steps, the normal yarn is arrayed in the outermost layer line of the fabric and the periphery of the warp, and the warps and the normal yarn are arrayed at intervals. The weaving method comprises the steps of initial yarn discharging, opening movement of warps for the first time, weft introduction for the first time, normal yarn movement for the first time, opening movement of the warps for the second time, introduction of the wefts for the second time, and normal yarn movement for the second time. The steps are conducted repeatedly.
Owner:TIANJIN POLYTECHNIC UNIV

Palm fiber-reinforced environment-friendly type brake pad and preparation method thereof

The invention relates to a palm fiber-reinforced environment-friendly type brake pad and a preparation method thereof. The palm fiber-reinforced environment-friendly type brake pad comprises the components of natural palm reinforced fibers taken as a material framework, ceramic fibers, melamine modified phenolic resin, a friction performance conditioning agent and a filler; the parts by weight of the components are as follows: 25-35 parts of reinforced fibers, 10-15 parts of adhesive, 8-12 parts of friction performance conditioning agent and 35-45 parts of filler. After being pretreated, the natural palm fibers have multiple good performances of being long in fibers, tenacious in texture, high in elasticity and tensile strength, wear-resistant and the like, and belong to renewable resource. Under optimal process conditions, the prepared palm fiber-reinforced brake pad can stabilize and reduce the expansion of material and improve the braking performance; the palm fiber-reinforced environment-friendly type brake pad is good in chemical stability and heat fading performance, so that the surface of the brake pad is prevented from being corroded. A great deal of gaps exist among the palm fibers, and the palm fibers are internally hollow, so that the manufactured brake pad is high in porosity, reduces the brake noise and is an ideal environment-friendly type natural fiber-reinforced material.
Owner:李美凤

Construction method for large-volume concrete structure of bridge loading platform

The invention relates to a construction method for a large-volume concrete structure of a bridge loading platform. Layering pouring is adopted and each layer of concrete is constructed according to the construction method which comprises the following steps: erecting a template; simultaneously pouring the large-volume concrete with high crack resistance and rushing resistance on an edge part and the large-volume concrete with low temperature rise and crack resistance in the interior according to a predesigned slope inclined angle theta, designed thickness t of the large-volume concrete on the edge part and pouring thickness m of the layer; and removing a mould after reaching mould-removing time. According to the construction method provided by the invention, the temperature difference between interior and exterior of the large-volume concrete structure can be controlled within 25 DEG C, without arranging a cooling water pipe in the large-volume concrete structure, such as the bridge loading platform, so as to reduce the risk of temperature cracking. Compared with the process of arranging the cooling water pipe, the construction method provided by the invention is simpler; the incompact plugging caused by later-stage slurry plugging after the cooling water pipe is arranged is avoided; the risk of potential defect of the concrete structure caused by the breaking of the water pipe is reduced; and the washing damage to the concrete structure caused by the water flow carrying sand is resisted.
Owner:WUHAN UNIV
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