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A platform for research: civil engineering, architecture and urbanism
Curve steel box girder walking type multi-point pushing method under spatial constraint
The invention provides a walking type multi-point pushing method for a curve steel box girder under spatial constraint. The method comprises the steps that firstly, pushing construction is prepared; secondly, construction is conducted through a one-time'translation 'construction method; thirdly, construction is conducted through a one-time deviation rectifying construction method; fourthly, construction is conducted through a one-time adjustment construction method; 5, construction is conducted through a one-time rotating construction method; step 6, calculating'spatial constraint 'of the main beam; and 7, ending the incremental launching construction. According to the method, the multi-point different-direction and different-speed pushing working conditions in the curve walking type pushing construction process can be effectively reduced, the requirement for a multi-point walking type pushing system can be greatly reduced based on the pushing strategy and method that the curve steel box girder is mainly subjected to translation and deviation correction and is assisted by rotation and adjustment under spatial constraint, the pushing reliability is improved, and the construction period is shortened. The construction difficulty and the construction risk when incremental launching construction encounters space constraint are reduced, and the strategy method is clear in thought, simple, clear, effective, high in operability and suitable for incremental launching construction of the curved steel box girder of the municipal bridge.
本发明提供了一种受空间约束时曲线钢箱梁步履式多点顶推方法，包括：步骤一、顶推施工准备；步骤二、一次“平移”工法施工；步骤三、一次“纠偏”工法施工；步骤四、一次“调整”工法施工；步骤五、一次“旋转”工法施工；步骤六、主梁“空间约束”计算；步骤七、顶推施工收尾。本发明的方法能够有效减少曲线步履式顶推施工过程中的多点异向和异速顶推工况，基于受空间约束时曲线钢箱梁“以平移和纠偏为主，旋转与调整为辅”的顶推策略与方法，可大幅降低对多点步履式顶推系统的要求，提高顶推可靠性，降低了顶推施工遭遇空间约束时的施工难度以及施工风险，该策略方法思路明确、简明有效、可操作性高，适用于市政桥梁的曲线钢箱梁的顶推施工。
Curve steel box girder walking type multi-point pushing method under spatial constraint
The invention provides a walking type multi-point pushing method for a curve steel box girder under spatial constraint. The method comprises the steps that firstly, pushing construction is prepared; secondly, construction is conducted through a one-time'translation 'construction method; thirdly, construction is conducted through a one-time deviation rectifying construction method; fourthly, construction is conducted through a one-time adjustment construction method; 5, construction is conducted through a one-time rotating construction method; step 6, calculating'spatial constraint 'of the main beam; and 7, ending the incremental launching construction. According to the method, the multi-point different-direction and different-speed pushing working conditions in the curve walking type pushing construction process can be effectively reduced, the requirement for a multi-point walking type pushing system can be greatly reduced based on the pushing strategy and method that the curve steel box girder is mainly subjected to translation and deviation correction and is assisted by rotation and adjustment under spatial constraint, the pushing reliability is improved, and the construction period is shortened. The construction difficulty and the construction risk when incremental launching construction encounters space constraint are reduced, and the strategy method is clear in thought, simple, clear, effective, high in operability and suitable for incremental launching construction of the curved steel box girder of the municipal bridge.
本发明提供了一种受空间约束时曲线钢箱梁步履式多点顶推方法，包括：步骤一、顶推施工准备；步骤二、一次“平移”工法施工；步骤三、一次“纠偏”工法施工；步骤四、一次“调整”工法施工；步骤五、一次“旋转”工法施工；步骤六、主梁“空间约束”计算；步骤七、顶推施工收尾。本发明的方法能够有效减少曲线步履式顶推施工过程中的多点异向和异速顶推工况，基于受空间约束时曲线钢箱梁“以平移和纠偏为主，旋转与调整为辅”的顶推策略与方法，可大幅降低对多点步履式顶推系统的要求，提高顶推可靠性，降低了顶推施工遭遇空间约束时的施工难度以及施工风险，该策略方法思路明确、简明有效、可操作性高，适用于市政桥梁的曲线钢箱梁的顶推施工。
Curve steel box girder walking type multi-point pushing method under spatial constraint
一种受空间约束时曲线钢箱梁步履式多点顶推方法
HAN HUICHAO (author) / ZHU WEIQING (author) / WU YIBIN (author) / CUI YI (author) / YANG XIN (author) / LYU ZHIHAO (author)
2024-07-16
Patent
Electronic Resource
Chinese
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