摘要：【中文】本发明提供了一种箱式路基结构及重载铁路路基，箱式路基结构包括底板、顶板、支撑结构以及至少两个边墙，边墙设置于底板与顶板之间，底板、顶板和边墙形成中空箱体；支撑结构包括至少一个斜支撑板，斜支撑板设置于中空箱体内以支撑顶板。该箱式路基结构相比于传统的梯形填料路基结构，其刚度和强度都大幅度提升，支撑力也更加均匀，占地面积减小，且无需使用传统路基填料，施工简便，降低了成本；同时，上述箱式路基结构能够承载更大的载荷，斜支撑板与底板、顶板、边墙之间构成了局部三角形或者梯形结构，使其稳定性和承载力提升了10％～20％。 【EN】The invention provides a box type roadbed structure and a heavy-duty railway roadbed, wherein the box type roadbed structure comprises a bottom plate, a top plate, a supporting structure and at least two side walls, wherein the side walls are arranged between the bottom plate and the top plate, and the bottom plate, the top plate and the side walls form a hollow box body; the supporting structure comprises at least one inclined supporting plate which is arranged in the hollow box body to support the top plate. Compared with the traditional trapezoidal filler roadbed structure, the box roadbed structure has the advantages that the rigidity and the strength are greatly improved, the supporting force is more uniform, the occupied area is reduced, the traditional roadbed filler is not needed, the construction is simple and convenient, and the cost is reduced; meanwhile, the box-type roadbed structure can bear larger load, and a local triangular or trapezoidal structure is formed among the inclined supporting plates, the bottom plate, the top plate and the side walls, so that the stability and the bearing capacity of the box-type roadbed structure are improved by 10% -20%.

摘要：【中文】一种减小活载作用下斜拉桥辅助墩处组合梁负弯矩的方法，涉及组合梁斜拉桥施工技术领域，包含以下步骤：S1：将弹性支座放置于支座垫石上，在辅助墩上方安装临时墩，吊装组合梁，使得组合梁高程为H₀+L₁；其中，H₀为成桥设计高程；L₁为组合梁拱起高程；S2：将弹性支座上方通过螺栓固定于组合梁，下方通过地脚螺栓固定于支座垫石；S3：进行弹性支座与支座垫石之间缝隙的灌浆，形成灌浆层；S4：拆除临时墩，弹性支座在组合梁的作用下，压缩变形L₁；本发明使得组合梁在辅助墩支座体系中，组合梁在活载作用下，弹性支座发生向下的竖向位移，解决了活载作用下组合梁产生负弯矩的问题。 【EN】A method for reducing the hogging moment of a composite beam at an auxiliary pier of a cable-stayed bridge under the action of live load relates to the technical field of composite beam cable-stayed bridge construction and comprises the following steps: s1: placing the elastic support on a support cushion stone, installing a temporary pier above the auxiliary pier, and hoisting the combined beam to enable the height of the combined beam to be H₀+L₁(ii) a Wherein H₀Designing an elevation for the bridge formation; l is₁Arching the elevation for the composite beam; s2: fixing the upper part of the elastic support to the combined beam through bolts, and fixing the lower part of the elastic support to the support cushion through foundation bolts; s3: grouting a gap between the elastic support and the support pad stone to form a grouting layer; s4: removing the temporary pier, and compressing and deforming the elastic support L under the action of the combined beam₁(ii) a The invention enables the elastic support to generate downward vertical displacement when the combined beam is in the auxiliary pier support system and under the action of live load, thereby solving the problem that the combined beam generates negative bending moment under the action of live loadTo a problem of (a).