SU1038403A1 - Teperaturally non-detached span structre of bridge - Google Patents

Abstract

TEMPERATURE-UNCURRENT TRANSFER STRUCTURE OF THE BRIDGE, including ribbed beams, each of which is made with an upper plate, having cutouts in the nadoporn sections of these beams. the transverse grooves formed by the cutouts in the upper plates of the beams between the upper plates of the beams adjacent respectively in length and width of the bridge, characterized in that, in order to increase the bearing capacity of the span structure in overhead areas and snuke — nor labor-consuming installation by reducing the volume of homonolation of transverse shvov between the upper states of the beams adjacent along the bridge, each transverse skew is made along the facade of the bridge with a curvilinear, convex upward, lower surface at a length equal to the total length of one facing to another cutout in the upper plates of the beams adjacent along the bridge length, the gap between the adjacent toets of these beams, and the lower longitudinal outcrops are bent at angles to the upper longitudinal outlets to the curved bottom surface of the corresponding cross schva.

Description

The invention relates to bridge construction and can be used in a cart. maintaining temperature-continuous bridge span structures. Known temperature-continuous span of the bridge, including ribbed beams with made from a single whole with each of them, the upper plate, having transverse and longitudinal reinforcement vyshunki, monolithic transverse and longitudinal seams between the upper plates 1. The disadvantage of this span structure lies in the low strength of the transverse joints between the upper plates of ribbed beams adjacent along the bridge as a result of limited DUECA matching corresponding to the gap between the ends of adjacent beams in the supra-support sections, which leads to the formation of a joint of the joints. to the violation of the coating in the sections of the interface of the beams of the span along the length of the bridge. The disadvantages of this flying structure also include the laboriousness of the device seams. The closest to the proposed by the ExIIs Entity and the effect achieved is the temperature-continuous span of the bridge, which includes ribbed beams, each of which is made with an upper plate, having cut-outs along the ends above the edge of the corresponding beam and provided with upper and lower sections. transverse reinforcing releases, homogenized longitudinal and formed by notches in the upper plates of the beams, transverse seams between the upper plates adjacent to the beams, respectively, along the length and width of the bridge . In the known span structure, the transverse joints between the upper plates have a constant height, equal to the height of the mating plates, while the lower longitudinal reinforcement outlets are made straight and parallel to the upper longitudinal ends 2, The disadvantage of the known span structure is lower than the load bearing capacity and narrowed work capacity and narrowed work capacity. The height of the cross-section seams of the bridge stretched along the bridge} of a given flexibility between the upper plates of the beams of adjacent spans. The purpose of the invention is to increase the carrying capacity of flying constructors in the supporting areas and to make them snuggling; they can be mounted by mixing with an obch-omv for monolithing the transverse joints between the upper sections of the beams adjacent along the bridge. This goal is achieved by teM that, in the temperature-continuous structure of the bridge, including ribbed beams, each of which is made with an upper plate, having cut edges along the ends of the corresponding beam and equipped with upper and lower longitudinal and transverse reinforcement in the supra-supporting sections, and longitudinal and transverse reinforcement. o5 transverse seams between the top plates of beams adjacent respectively along the length and width of the bridge beams, cut out in the top plates of the beams, each transverse seam is made along the facade of the bridge with a curvature upward convexity, the bottom surface on a length equal to the total length of cut-outs facing one another in the upper plates of the beams adjacent along the bridge and the gap between the adjacent ends of these beams, the lower longitudinal arms bent upwards at an angle to the upper longitudinal above / scam and to the curved bottom surface of the corresponding transverse seam. FIG. 1 shows a fragment of a temperature-continuous span in the overhead section; FIG. 2 - the same plan view; in fig. 3 is a cross section of AbA in FIG. 2; in fig. 4 is a section BB in FIG. 2; in fig. 5 is a transverse joint between the upper plates of the beams of the superstructure adjacent along the bridge length. The temperature-continuous superstructure includes prefabricated ribbed beams 1 with ribs 2 and the upper plates of the roadway 3, which are integral with them, having transverse 4, lower 5 and upper 6 longitudinal reinforcement. The plates 3 have cutouts 7 in the supra-portions 7 along the ends over the edge 2 of the corresponding beam 1 and are matched in the transverse and longitudinal directions by means of the longitudinal seams 8 and the cutouts 7 formed in the plates 3 of the transverse seams 9. Each transverse uioB 9 is made along the facade with cr1tolinear, convexity facing upwards, bottom surface 10 on the length. equal to the total length of the ontni-facing to the other notches 7 in the upper slabs P for the length of the bridge beams 1 and the height of the gap between the adjacent ends of these beams. At the same time, the lower longitudinal outlets 5 are bent upwards at an angle to the upper longitudinal outlets and to the curvilinear Sh1 of the surface of the corresponding cross 5 of the cross-section curve 9, which is concreted using the curved shuttering sheet 11.,

Constructions; works as follows about & again. yu

Due to the curvilinear bottom surface, the work of the transverse seam 9 in the vertical plane is reduced to the arch operation, which provides the minimum thickness of the bearing capacity, the increase of which, in addition to giving the transverse arch to the arch shape, provides the required deformability for the perception of moment loads at a much smaller anomaline 6.

At the same time, a decrease in this length causes a decrease in the volume of mono-concrete concrete in low security areas of the upper plates, and consequently, a reduction in the labor intensity of the span structures.

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Claims (1)

TEMPERATURE AND CUTTLE SPAN STRUCTURE OF THE BRIDGE, including ribbed beams, each of which is made with an upper plate, which has cutouts in the support sections at the ends above the edge of the corresponding beam and provided with upper and lower longitudinal and transverse 'reinforcing outlets, monolithic longitudinal and upper cutouts beams transverse seams between the upper plates adjacent, respectively, along the length and width of the bridge of beams, characterized in that, in order to increase the bearing capacity of the superstructure in above porn sites and The decrease. the complexity of installation by reducing the amount of monolithic transverse seams between the upper plates adjacent to the length of the bridge beams, each transverse seam is made on the facade of the bridge with a curved, convex upward, lower surface at a length equal to the total length of the cutouts facing one another in the upper plates adjacent to each other the length of the bridge of beams and the gap between the adjacent ends of these beams, and the lower longitudinal outlets are bent upward at an angle to the upper longitudinal outlets and to the curved lower surface with Resp transverse seal. Figure 1