Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for main pier and junction pier bearing platform of continuous rigid frame bridge
The invention provides a continuous rigid frame bridge main pier and junction pier bearing platform construction method, and belongs to the technical field of bridge main pier and junction pier bearing platform construction, and the method comprises the steps of measuring and setting out, excavating a foundation pit, detecting a pile foundation and breaking pile head concrete, treating a base, binding bearing platform steel bars, installing a cooling pipe, constructing a template, pouring bearing platform concrete, maintaining the concrete and removing the template. The construction method has the advantages that the construction efficiency is high, the situation that the bridge column pier and the bearing platform crack can be avoided through the steel bar construction technology, and hydration heat is reduced by optimizing the concrete mixing proportion; a cooling water pipe is arranged at a proper position, after a next layer of concrete is poured, hydration heat dissipation can be slightly waited before initial setting, a retarder is added into the concrete, and the new concrete and the old concrete are vibrated into a whole in time. Reasonable arrangement is achieved, electric power and hydraulic power departments are communicated, and pouring is conducted at proper time. And measures for accidental power failure and water cut-off are taken, for example, the generator is prepared, and the water storage tank is full of water.
本发明提供连续刚构桥主墩与交界墩承台施工方法，属于桥主墩与交界墩承台施工技术领域，测量放样，对基坑进行开挖，对桩基检测并破除桩头砼，基底处理，绑扎承台钢筋，冷却管安装，模板施工，浇筑承台砼，砼养生和拆模。本发明具有施工效率快，通过钢筋施工工艺能够避免桥柱墩与承台出现开裂的情况，通过优化混凝土配合比，降低水化热；在合适的位置布设冷却水管，在浇筑完下一层混凝土后在初凝以前可以稍微等待水化热消散，混凝土中加入缓凝剂，并及时振捣以将新旧混凝土振捣为一体。合理安排、沟通联系电力水力部门，选择合适的时候浇筑。并做好意外停电停水的应对措施，如准备发电机、储水池蓄满水。
Construction method for main pier and junction pier bearing platform of continuous rigid frame bridge
The invention provides a continuous rigid frame bridge main pier and junction pier bearing platform construction method, and belongs to the technical field of bridge main pier and junction pier bearing platform construction, and the method comprises the steps of measuring and setting out, excavating a foundation pit, detecting a pile foundation and breaking pile head concrete, treating a base, binding bearing platform steel bars, installing a cooling pipe, constructing a template, pouring bearing platform concrete, maintaining the concrete and removing the template. The construction method has the advantages that the construction efficiency is high, the situation that the bridge column pier and the bearing platform crack can be avoided through the steel bar construction technology, and hydration heat is reduced by optimizing the concrete mixing proportion; a cooling water pipe is arranged at a proper position, after a next layer of concrete is poured, hydration heat dissipation can be slightly waited before initial setting, a retarder is added into the concrete, and the new concrete and the old concrete are vibrated into a whole in time. Reasonable arrangement is achieved, electric power and hydraulic power departments are communicated, and pouring is conducted at proper time. And measures for accidental power failure and water cut-off are taken, for example, the generator is prepared, and the water storage tank is full of water.
本发明提供连续刚构桥主墩与交界墩承台施工方法，属于桥主墩与交界墩承台施工技术领域，测量放样，对基坑进行开挖，对桩基检测并破除桩头砼，基底处理，绑扎承台钢筋，冷却管安装，模板施工，浇筑承台砼，砼养生和拆模。本发明具有施工效率快，通过钢筋施工工艺能够避免桥柱墩与承台出现开裂的情况，通过优化混凝土配合比，降低水化热；在合适的位置布设冷却水管，在浇筑完下一层混凝土后在初凝以前可以稍微等待水化热消散，混凝土中加入缓凝剂，并及时振捣以将新旧混凝土振捣为一体。合理安排、沟通联系电力水力部门，选择合适的时候浇筑。并做好意外停电停水的应对措施，如准备发电机、储水池蓄满水。
Construction method for main pier and junction pier bearing platform of continuous rigid frame bridge
连续刚构桥主墩与交界墩承台施工方法
BO RUIFEI (Autor:in) / HUANG ZHEJUN (Autor:in) / XU BO (Autor:in) / LI PANPAN (Autor:in) / LIU GENSHEN (Autor:in) / ZHANG HAO (Autor:in) / ZHENG FAN (Autor:in) / ZHAO SHIWEI (Autor:in) / LIANG SHIHAN (Autor:in)
04.06.2024
Patent
Elektronische Ressource
Chinesisch
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