4 results about "Internal forces" patented technology

The invention discloses a reinforced culvert. The reinforced culvert comprises a culvert top and side walls. A prestress top plate which is composed of a symmetrically fastened double-layer corrugated steel is arranged at the bottom of the culvert top, single-layer corrugated steels are arranged on the inner sides of left and right side walls, the top plate is installed on the single-layer corrugated steels of the side walls, reinforcing steel bars are arranged in a cavity cylinder formed by the double-layer corrugated steel, the cavity cylinder is filled with concrete, and simultaneously, concrete is filled between the culvert top and the prestress top plate as well as between left and right side walls and the single-layer corrugated steels. The reinforced culvert has the advantages that a corrugated steel rigid support is added on the basis of the original culvert structure, and further expansion of cracks is prevented, so that the internal force and deformation of the original culvert structure are reduced greatly, simultaneously, the original structure is fully utilized, and shared force bearing of new and old structures is guaranteed with the using function of the original culvert unchanged.

The invention discloses a method for realizing displacing and steering a building through adjusting diameters of rolling shafts. The steering is completed through changing the diameters of the rollingshaft before and after displacement; the direction adjustments of the rolling shafts are completed without being jacked by a jack; the additional internal force generated by the deformation caused bythe jacking is avoided; concrete for underpinning beams before and after the steering is simultaneously poured; moreover, the bottom elevations of before-steering and after-steering beams and the topelevations of tracks are consistent; the construction is convenient; the construction period is shortened; the before-steering concrete underpinning beams are mildly destroyed when the rolling shaftsare taken out, but the displacement after the steering is not influenced.

The invention provides a roller support of a steel truss. The roller support of the steel truss comprises a roller. The roller is installed between an upper support and a lower support and the upper support and the lower support are buckled mutually; the upper support comprises a top plate, first baffles are arranged below the front side and the rear side of the top plate, the lower support comprises a bottom plate, second baffles are arranged above the front side and the rear side of the bottom plate, movable grooves located on the same horizontal level are formed in the lower parts of the first baffles and the upper parts of the second baffles, and the two ends of the roller are arranged in the movable grooves of the two sets of the first baffles and the second baffles. According to the roller support of the steel truss, the support is divided into the upper and lower parts between which the roller is installed, and the upper support and the lower support move relative to each other by taking the roller as the basis, to eliminate the deflection, generated by telescopic deformation under the effect of temperature changes or earthquakes, of a steel truss bridge and generated when the steel truss bridge is loaded, the longitudinal displacement change is released, and the structural safety of the steel truss bridge is improved. The roller support of the steel truss can also resist the effect of crosswise horizontal internal force, such as wind load, equipment load and the like.