Splicing method for curved single-tower double-cable-plane frameworks for cable-stayed bridge main tower

Abstract

The invention discloses a splicing method for curved single-tower double-cable-plane frameworks for a cable-stayed bridge main tower. The method comprises the assembly procedure of flat framework units, the assembly procedure of side face frameworks and the assembly procedure of cambered surface frameworks. The assembly procedure of the flat framework units comprises the steps of placing main beams, assembling secondary beams, mounting lifting hooks, laying panels, maintaining and punching opposite-pulling screw holes. When the assembly procedure of the side face frameworks is implemented, the two flat framework units are connected together through a plurality of core belts and a plurality of core belt plug pins. The assembly procedure of the cambered surface frameworks comprises the same steps as the assembly procedure of the flat framework units and further comprises the mounting step of modeling wood strips after the lift hook mounting step, that is, the panels are laid after a plurality of modeling wood strips are fixed to the secondary beams in the longitudinal direction, specifically, the panels are laid on the modeling wood lines, so that the panels are arched into cambered surfaces. By means of the splicing method for the frameworks for the cable-stayed bridge main tower, the integrality of the frameworks can be guaranteed, and the frameworks are stressed more reasonably and reliably.

Description

technical field [0001] The invention relates to a method for assembling a building formwork, in particular to a method for assembling a formwork for a main tower of a cable-stayed bridge with a curved single tower and double cable planes. Background technique [0002] Formwork is a component used in the construction of concrete bridge towers to form concrete. It is a temporary support structure, which is manufactured according to the design requirements, so that the concrete structure and components are formed according to the specified position and geometric size, maintain their correct position, and bear the self-weight of the formwork and the external load acting on it. The purpose of formwork engineering is to ensure the quality of concrete engineering and construction safety, speed up the construction progress and reduce engineering costs. Existing building formwork is generally wood formwork, plastic formwork, metal formwork, etc. Wooden formwork is manufactured on-si...

AI Technical Summary

Problems solved by technology

The existing building formwork is generally wood formwork, plastic formwork, metal formwork, etc. The wood formwork is processed on site, and the cost is low, but the process is time-consuming and not durable, and the materials are not recyclable and not environmentally friendly.

Although the cost of plastic formwork is low, it is difficult to process on site, and it also has the disadvantage of not being environmentally friendly

Existing metal formwork is bulky and expensive

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