Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of existing bridge bearing platform bottom disengagement treatment structure
The invention relates to a construction method of a disengagement treatment structure at the bottom of an existing bridge bearing platform. The construction method comprises the steps of (1) constructing a bottom filling structure; 2) installing expansion bolts on the side wall of the cavity of the existing bearing platform, and anchoring one end of each prestressed tendon on the corresponding expansion bolt; 3) installing a pressure gauge on the side wall of the cavity of the existing bearing platform; 4) placing a built-in rib frame in the cavity of the existing bearing platform; 5) mountingthe prefabricated non-dismantling formwork, and sealing the cavity; 6) tensioning and anchoring the prestressed tendons; 7) connecting the grouting pipe with a grouting trolley; 8) connecting the outer end of the wire with pressure display equipment; and (9) after the filled concrete reaches the designed strength, dismounting the center hole jack and the tool anchor. The method has the beneficialeffects that the pre-stressed tension is set for the concrete injected into the cavity, so that the bonding strength between the post-injected concrete and the active-service bearing platform can beeffectively improved, and the bearing capacity of the active-service bearing platform is improved.
本发明涉及现役桥梁承台底部脱空处治结构施工方法，包括步骤：1)底部填平结构施工；2)在现役承台的空腔的侧壁上，安装膨胀螺栓，并将预应力筋的一端锚固在膨胀螺栓上；3)在现役承台的空腔的侧壁上，安装压力计；4)在现役承台的空腔内放置内置筋架；5)安装预制免拆模板，对空腔进行封闭；6)对预应力筋进行张拉锚固；7)将注浆管与注浆台车相连；8)导线的外端与压力显示设备相连；9)填充混凝土达到设计强度后，拆除穿心式千斤顶和工具锚。本发明的有益效果是：本发明对空腔注入的混凝土设置预应力张拉，能够有效提升后注入混凝土与现役承台之间的结合强度，从而提升现役承台的承载能力。
Construction method of existing bridge bearing platform bottom disengagement treatment structure
The invention relates to a construction method of a disengagement treatment structure at the bottom of an existing bridge bearing platform. The construction method comprises the steps of (1) constructing a bottom filling structure; 2) installing expansion bolts on the side wall of the cavity of the existing bearing platform, and anchoring one end of each prestressed tendon on the corresponding expansion bolt; 3) installing a pressure gauge on the side wall of the cavity of the existing bearing platform; 4) placing a built-in rib frame in the cavity of the existing bearing platform; 5) mountingthe prefabricated non-dismantling formwork, and sealing the cavity; 6) tensioning and anchoring the prestressed tendons; 7) connecting the grouting pipe with a grouting trolley; 8) connecting the outer end of the wire with pressure display equipment; and (9) after the filled concrete reaches the designed strength, dismounting the center hole jack and the tool anchor. The method has the beneficialeffects that the pre-stressed tension is set for the concrete injected into the cavity, so that the bonding strength between the post-injected concrete and the active-service bearing platform can beeffectively improved, and the bearing capacity of the active-service bearing platform is improved.
本发明涉及现役桥梁承台底部脱空处治结构施工方法，包括步骤：1)底部填平结构施工；2)在现役承台的空腔的侧壁上，安装膨胀螺栓，并将预应力筋的一端锚固在膨胀螺栓上；3)在现役承台的空腔的侧壁上，安装压力计；4)在现役承台的空腔内放置内置筋架；5)安装预制免拆模板，对空腔进行封闭；6)对预应力筋进行张拉锚固；7)将注浆管与注浆台车相连；8)导线的外端与压力显示设备相连；9)填充混凝土达到设计强度后，拆除穿心式千斤顶和工具锚。本发明的有益效果是：本发明对空腔注入的混凝土设置预应力张拉，能够有效提升后注入混凝土与现役承台之间的结合强度，从而提升现役承台的承载能力。
Construction method of existing bridge bearing platform bottom disengagement treatment structure
现役桥梁承台底部脱空处治结构施工方法
WANG XINQUAN (Autor:in)
02.04.2021
Patent
Elektronische Ressource
Chinesisch
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