Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Partial cable-stayed bridge of steel truss web type concrete composite beam and construction method thereof
The invention discloses a partial cable-stayed bridge of a steel truss web type concrete composite beam and a construction method thereof. The cable-stayed bridge comprises main beams, each main beamcomprises a tower beam consolidation area, a beam end area and a steel truss web area, a main tower is arranged at the tower beam consolidation area, stay cables are arranged between the main tower and the main beams, each main beam steel truss web area comprises a concrete top plate and a concrete bottom plate, and a steel truss web is arranged between the concrete top plate and the concrete bottom plate. The construction method comprises the steps of assembling the steel truss web sections; hanging stay cables between the main tower and the main beams, and completing initial tensioning; pouring a concrete top plate by taking the steel truss web sections as supports of a cast-in-place platform; pouring a concrete bottom plate by taking the steel truss web sections as a support of the cast-in-place platform; curing the concrete top plate and the concrete bottom plate; tensioning the transverse retard-bonded prestressed steel beams; and carrying out next section construction. The earthquake working condition applicability of a traditional concrete partial cable-stayed bridge is broadened, and the cable-stayed bridge has wide application prospects in large-span bridges in high-intensity earthquake areas.
本发明公开了一种钢桁腹式混凝土组合梁的部分斜拉桥及其施工方法，其斜拉桥包括主梁，主梁包括塔梁固结区、梁端区、钢桁腹区，塔梁固结区处设置有主塔，主塔、主梁之间设置有斜拉索，主梁钢桁腹区包括混凝土顶板和混凝土底板，混凝土顶板、混凝土底板之间设置有钢桁腹。其施工方法：包括以下步骤：拼装钢桁腹节段；主塔、主梁之间挂设斜拉索并完成初张拉；以钢桁腹节段作为现浇平台的支撑浇筑混凝土顶板；以钢桁腹节段作为现浇平台的支撑浇筑混凝土底板；养护混凝土顶板、混凝土底板；横向缓粘结预应力钢束张拉；进行下一节段施工。本发明拓宽了传统混凝土部分斜拉桥的地震工况适用性，在高烈度震区的大跨度桥梁中具有较广阔的应用前景。
Partial cable-stayed bridge of steel truss web type concrete composite beam and construction method thereof
The invention discloses a partial cable-stayed bridge of a steel truss web type concrete composite beam and a construction method thereof. The cable-stayed bridge comprises main beams, each main beamcomprises a tower beam consolidation area, a beam end area and a steel truss web area, a main tower is arranged at the tower beam consolidation area, stay cables are arranged between the main tower and the main beams, each main beam steel truss web area comprises a concrete top plate and a concrete bottom plate, and a steel truss web is arranged between the concrete top plate and the concrete bottom plate. The construction method comprises the steps of assembling the steel truss web sections; hanging stay cables between the main tower and the main beams, and completing initial tensioning; pouring a concrete top plate by taking the steel truss web sections as supports of a cast-in-place platform; pouring a concrete bottom plate by taking the steel truss web sections as a support of the cast-in-place platform; curing the concrete top plate and the concrete bottom plate; tensioning the transverse retard-bonded prestressed steel beams; and carrying out next section construction. The earthquake working condition applicability of a traditional concrete partial cable-stayed bridge is broadened, and the cable-stayed bridge has wide application prospects in large-span bridges in high-intensity earthquake areas.
本发明公开了一种钢桁腹式混凝土组合梁的部分斜拉桥及其施工方法，其斜拉桥包括主梁，主梁包括塔梁固结区、梁端区、钢桁腹区，塔梁固结区处设置有主塔，主塔、主梁之间设置有斜拉索，主梁钢桁腹区包括混凝土顶板和混凝土底板，混凝土顶板、混凝土底板之间设置有钢桁腹。其施工方法：包括以下步骤：拼装钢桁腹节段；主塔、主梁之间挂设斜拉索并完成初张拉；以钢桁腹节段作为现浇平台的支撑浇筑混凝土顶板；以钢桁腹节段作为现浇平台的支撑浇筑混凝土底板；养护混凝土顶板、混凝土底板；横向缓粘结预应力钢束张拉；进行下一节段施工。本发明拓宽了传统混凝土部分斜拉桥的地震工况适用性，在高烈度震区的大跨度桥梁中具有较广阔的应用前景。
Partial cable-stayed bridge of steel truss web type concrete composite beam and construction method thereof
一种钢桁腹式混凝土组合梁的部分斜拉桥及其施工方法
SU WEI (Autor:in) / DU BAOJUN (Autor:in) / LI ENLIANG (Autor:in) / LI YAN (Autor:in) / ZHOU YUEWU (Autor:in) / ZHU XIANYI (Autor:in) / MOU ZHAOXIANG (Autor:in) / LIU LONG (Autor:in)
06.11.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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