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A platform for research: civil engineering, architecture and urbanism
Arched low-pier continuous beam bridge foundation and construction method
The invention discloses an arched low-pier continuous beam bridge foundation and a construction method, and is suitable for the field of bridge pile foundation construction. The arched low-pier continuous beam bridge foundation comprises a continuous beam main body and a plurality of piers, the plurality of piers are arranged below the continuous beam main body and support the continuous beam main body, the plurality of piers comprise two main piers, each main pier is supported by a bearing platform, and a pile foundation structure is arranged below the bearing platform; a main pier is a low curved surface pier, the cross section of the low curved surface pier is gradually increased from a bearing platform to the lower portion of a continuous beam body, when the drawing force of the bearing platform and a pile foundation of the main pier is designed and calculated, the amplification influence of the low curved surface pier on the drawing force of the bearing platform and the pile foundation due to the fact that the rigidity of the main pier structure is large should be considered, and the flatness ratio e is set; the coefficient is used for representing the drawing force influence coefficient caused by the rigidity. According to the method, the maximum flatness ratio is used for estimating the design requirement for the drawing force borne by the corresponding pile foundation, and the low curved surface pier can well bear the upward drawing force under the action of external force on the continuous beam pile foundation.
本发明公开了拱形低墩连续梁桥基础及施工方法，适用于桥梁桩基施工领域。本发明拱形低墩连续梁桥基础，包括连续梁主体和若干个桥墩，若干个桥墩设置在连续梁主体的下方，并支撑所述连续梁主体，若干个桥墩包括两个主墩，每一主墩通过承台对主墩进行支撑，承台下设置有桩基结构；主墩为低矮曲面墩，低矮曲面墩自承台到连续梁主体下方的横截面逐渐增大，在主墩承台及桩基的拉拔力设计计算时，应考虑低矮曲面墩由于主墩结构刚性较大对承台及桩基础拉拔力的放大影响，设定扁平比e，作为表征其刚性所导致的拉拔力影响系数。本发明取最大扁平比，来估算其对应桩基础承载的拉拔力设计需求，连续梁桩基础在外力作用下，低矮曲面墩能很好的承受向上拉拔力。
Arched low-pier continuous beam bridge foundation and construction method
The invention discloses an arched low-pier continuous beam bridge foundation and a construction method, and is suitable for the field of bridge pile foundation construction. The arched low-pier continuous beam bridge foundation comprises a continuous beam main body and a plurality of piers, the plurality of piers are arranged below the continuous beam main body and support the continuous beam main body, the plurality of piers comprise two main piers, each main pier is supported by a bearing platform, and a pile foundation structure is arranged below the bearing platform; a main pier is a low curved surface pier, the cross section of the low curved surface pier is gradually increased from a bearing platform to the lower portion of a continuous beam body, when the drawing force of the bearing platform and a pile foundation of the main pier is designed and calculated, the amplification influence of the low curved surface pier on the drawing force of the bearing platform and the pile foundation due to the fact that the rigidity of the main pier structure is large should be considered, and the flatness ratio e is set; the coefficient is used for representing the drawing force influence coefficient caused by the rigidity. According to the method, the maximum flatness ratio is used for estimating the design requirement for the drawing force borne by the corresponding pile foundation, and the low curved surface pier can well bear the upward drawing force under the action of external force on the continuous beam pile foundation.
本发明公开了拱形低墩连续梁桥基础及施工方法，适用于桥梁桩基施工领域。本发明拱形低墩连续梁桥基础，包括连续梁主体和若干个桥墩，若干个桥墩设置在连续梁主体的下方，并支撑所述连续梁主体，若干个桥墩包括两个主墩，每一主墩通过承台对主墩进行支撑，承台下设置有桩基结构；主墩为低矮曲面墩，低矮曲面墩自承台到连续梁主体下方的横截面逐渐增大，在主墩承台及桩基的拉拔力设计计算时，应考虑低矮曲面墩由于主墩结构刚性较大对承台及桩基础拉拔力的放大影响，设定扁平比e，作为表征其刚性所导致的拉拔力影响系数。本发明取最大扁平比，来估算其对应桩基础承载的拉拔力设计需求，连续梁桩基础在外力作用下，低矮曲面墩能很好的承受向上拉拔力。
Arched low-pier continuous beam bridge foundation and construction method
一种拱形低墩连续梁桥基础及施工方法
WU CHANGSHENG (author) / SONG HUIHENG (author) / YAN YONGPAN (author) / RUAN JIKUN (author) / RAO HAOYAN (author) / YANG SHUANGDI (author) / CAI QIFENG (author) / WANG KAI (author) / HU ZHIHUA (author) / YE HANNIAN (author)
2023-06-23
Patent
Electronic Resource
Chinese
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