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A platform for research: civil engineering, architecture and urbanism
Semi-floating system cable-stayed bridge main tower construction process
The invention relates to the technical field of cable-stayed bridge main tower construction, in particular to a semi-floating system cable-stayed bridge main tower construction technology. The technical problems that in the prior art, concrete is prone to cracking, a mode of fully laying a support is adopted for construction of a cross beam, the disassembly and assembly difficulty is large, and the support is prone to deformation are solved through the semi-floating system cable-stayed bridge main tower construction technology. According to the technical scheme, the semi-floating system cable-stayed bridge main tower construction technology comprises the following steps that S1, a lower tower column is constructed; s2, cross beam construction; s3, construction of an upper tower column; and S4, construction of the cableway pipe. In order to prevent large-volume concrete temperature cracks in the construction period, control the temperature of the large-volume concrete temperature cracks, reduce internal stress caused by temperature change to the maximum extent and prevent the cracks and serious structural damage, a supporting system combining the pre-buried brackets and the steel pipe columns is adopted for construction of the cross beams, and compared with a fully-laid support, the construction efficiency is improved. The support is small in elastic and inelastic deformation and easy to construct and control.
本发明涉及斜拉桥主塔施工技术领域，尤其涉及一种半漂浮体系斜拉桥主塔施工工艺。技术问题：该半漂浮体系斜拉桥主塔施工工艺旨在解决现有技术下混凝土容易产生裂缝，且横梁的施工采取满铺支架的方式，拆装的难度较大，且支架容易变形的技术问题。技术方案：一种半漂浮体系斜拉桥主塔施工工艺，其步骤如下：S1：下塔柱施工；S2：横梁施工；S3：上塔柱的施工；S4：索道管的施工。本发明为防止施工期出现大体积混凝土温度裂缝，对其进行温度控制，能够最大限度地减少由于温度变化导致的内部应力，防止裂缝和严重的结构损伤，横梁的施工采取预埋牛腿与钢管柱相结合的支撑体系，与满铺支架相比，支架弹性及非弹性变形小，易于施工控制。
Semi-floating system cable-stayed bridge main tower construction process
The invention relates to the technical field of cable-stayed bridge main tower construction, in particular to a semi-floating system cable-stayed bridge main tower construction technology. The technical problems that in the prior art, concrete is prone to cracking, a mode of fully laying a support is adopted for construction of a cross beam, the disassembly and assembly difficulty is large, and the support is prone to deformation are solved through the semi-floating system cable-stayed bridge main tower construction technology. According to the technical scheme, the semi-floating system cable-stayed bridge main tower construction technology comprises the following steps that S1, a lower tower column is constructed; s2, cross beam construction; s3, construction of an upper tower column; and S4, construction of the cableway pipe. In order to prevent large-volume concrete temperature cracks in the construction period, control the temperature of the large-volume concrete temperature cracks, reduce internal stress caused by temperature change to the maximum extent and prevent the cracks and serious structural damage, a supporting system combining the pre-buried brackets and the steel pipe columns is adopted for construction of the cross beams, and compared with a fully-laid support, the construction efficiency is improved. The support is small in elastic and inelastic deformation and easy to construct and control.
本发明涉及斜拉桥主塔施工技术领域，尤其涉及一种半漂浮体系斜拉桥主塔施工工艺。技术问题：该半漂浮体系斜拉桥主塔施工工艺旨在解决现有技术下混凝土容易产生裂缝，且横梁的施工采取满铺支架的方式，拆装的难度较大，且支架容易变形的技术问题。技术方案：一种半漂浮体系斜拉桥主塔施工工艺，其步骤如下：S1：下塔柱施工；S2：横梁施工；S3：上塔柱的施工；S4：索道管的施工。本发明为防止施工期出现大体积混凝土温度裂缝，对其进行温度控制，能够最大限度地减少由于温度变化导致的内部应力，防止裂缝和严重的结构损伤，横梁的施工采取预埋牛腿与钢管柱相结合的支撑体系，与满铺支架相比，支架弹性及非弹性变形小，易于施工控制。
Semi-floating system cable-stayed bridge main tower construction process
一种半漂浮体系斜拉桥主塔施工工艺
LU ZUHONG (author) / NI XUEPING (author) / YE SHUIHUA (author) / LIU KAI (author) / WU GAI (author) / YANG KANGFU (author) / ZHOU XIAOLIANG (author) / CHEN SHENGJIE (author) / FU YONGLE (author) / CHEN ZUOQUN (author)
2025-01-21
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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