SU988951A1 - Expansion joint - Google Patents

Description

one

Invents answers to construction and can be used in transport. construction during the construction of yostov.

There are known deformation pgai of building elements, including an eco-rigid filling of the gap between the junction and the ME elements and the coating of Shks located on adjacent elements; 1Nigch meteriala from ... 10

The disadvantage of these structures is the destruction of the elastic filled edges of the seam and the coating at the seam, the presence of irregularities disturbing the smoothness of the movement of transport using seam 15 in bridge building.

The closest technical solution to the data is the deformation of the building elements, mainly split span structures of the road bridge 20, in the area of the inlet to the movable supporting parts, including elastic filling of the gap between the adjacent standed structures located on adjacent adjacent prolapes continuous coating of txotropic material 2.

The main defect of this construction

Findings in asphalt concrete NoKia iTini bumps and cracks in the seam area, lack of tightness. This is due to the low deformability of asphalt concrete with negative temperatures. Grains or snow, compacted by the wheels of the auto engine, fall into the cracks formed at neutral temperatures, and asphalt concrete is elongated when extending over the span.

The purpose of the invention is to prevent the formation of cracks in the coating of the ns | d lice n u and the increase in the gap between the spans being joined.

Claims (2)

Said pel is achieved in that deformashkshvom seam construction elements, preferably split nroleoiyh strenny avtsschorozhnszhch bridge in zsshe supporting them on podshoknye supporting portions comprising an elastic filling the gap between the abutting Spans E and disposed on adjacent Spans x continuous coating of TIksotry "yOgCh material , each dockable span is provided with an anchor rigidly attached to it with one rip, each anchor is wound into the floor, passed over the seam, and its other onets raspolozken on adjacent spans. Fig. 1 shows a bridge in the zone of an expansion joint, a longitudinal section; in fig. 2 - reinforcement of an expansion joint, plan. The expansion joint of the span of the road bridge 1 supported on the movable support parts 2 includes elastic filling 3 of the gap between the spans, the continuous toxotropic coating 4 of the bridge carriageway, anchors 5 rigidly attached at one end to the span, skipped over the bridge , with the other end of the anchors 5 located above the adjacent span in the roadway. Anchors 5 parallel to the seam contain distribution armature rods 6. When the gap between drylet trash 1 is increased (for example, due to low temperatures), anchors 5, moving together with the span structures, create a compressed section in the carriageway in the seam area Consisting, eliminating the occurrence of cracks, when removing the spans, the gap will decrease, and in the roadway in the seam area the anchors create tensile stresses perceived by asphalt concrete, since ltobetona at positive temperatures considerably exceeds its deformation when negative chativnost temperaturea. The best H3o6p Telbie expands the range of application of closed-type deformation shingles, as it allows their use in bridges with large spans in the northern climatic regions. DETAILED DESCRIPTION OF THE INVENTION The expansion joint of building elements, mainly split span structures of a road bridge in a zone supported by them on movable support parts, includes elastic filling of the gap between the joined span structures and continuous coating on adjacent span structures, which is made of , in order to prevent the formation of cracks in the coating above the pinch while increasing the gap between the spans being joined, each spacing structure The plant is equipped with an anchor rigidly attached to it with one end, with each anchor wound up in the floor, skipped over the upper side, and the other end located above the adjacent span. Sources of information taken into account in the examination 1.Shesterikov VI. Expansion joints in road bridges, Moscow, Transport, 1978, p. 14, fig. 1.4. 2. In the same place 9, fig. 1.2 Sprotiotype).