Combination slip-on steel structure beam platform and prefabricated box girder combined slip-on method

Abstract

The invention belongs to the technical field of civil engineering. A combined slip-on steel structure beam-making pedestal and a prefabricated box girder combined slip-on method, the bottom of which is a foundation cap made of concrete, and the beam-making pedestal includes a common segment arranged in the middle of the foundation cap and a symmetrical arrangement Sleeve assembled segments at both ends of the shared segment, the shared segment is assembled from multi-segment segment units, and a hanging beam hole is arranged between the shared segment and the set assembled segment, and the hanging beam hole There is a movable roof on the top, and the movable roof is connected with the common segment and the assembled segment by tongue and groove, and the combination of different types of box girders is performed through this steel structure beam base.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to a combination-slip-on steel structure girder base and a prefabricated box girder combined-slapping method. Background technique [0002] According to incomplete statistics, most of the bridge superstructures in China and even in the world are fabricated prefabricated beam-slab structures. Taking China as an example, hundreds of bridges of this type are being built every year, and the number of prefabricated beams and slabs is even more astonishing. However, there are still many unsolved problems so far. The most obvious manifestation is the problem of temporary land acquisition for prefabricated yards: on the one hand, our country has limited arable land resources, and the state has increased the management of temporary land occupation. , In mountainous areas, beside rivers or in urban areas, even if you want to spend a lot of money to acquire land, there i...

AI Technical Summary

Problems solved by technology

The most obvious manifestation is the problem of temporary land acquisition for prefabricated yards: on the one hand, our country has limited arable land resources, and the state has increased the management of temporary land occupation. , In mountainous areas, beside rivers or in urban areas, even if you want to spend a lot of money to acquire land, there is no condition, because it is difficult to find a large and relatively flat site in these places, which brings great difficulties to the choice of prefabricated sites. Puzzled

It is often "beams waiting for piers" in the early stage and "beams waiting for piers" in the later stage, resulting in the final rush for the construction period, which not only affects the quality, but also increases the construction cost. Environmental friendly

[0003] Under the general construction scale, there are usually hundreds of beams and slabs in a project, and as many as thousands of beams and slabs, and the lengths of these beams and slabs are different (often a mixture of several specification length spans, such as 20m, 25m, 30m, 40m, etc. , but due to the design of the national stereotyped drawing, the width of the bottom slab is the same), according to the routine, it is necessary to temporarily requisition tens of acres or more of land to arrange the girder bases of these girders with different span lengths, which has become a bottleneck problem for decades , has brought great difficulties to the majority of bridge builders

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