Travelling method of cantilever casting arch bridge hanging basket push-type tracked small tank

Abstract

The invention provides a travelling method of a cantilever casting arch bridge hanging basket push-type tracked small tank. The high-maneuverability push type of a hydraulic jack, a hanging basket and the tracked small tank is adopted, and cantilever casting arch bridge hanging basket construction is achieved. A lower-bearing type inverted triangular hanging basket is selected as the hanging basket of a cantilever casting arch bridge, and the hanging basket overall structure is on the lower side of a concrete structure. The tracked small tank is installed on a hanging leg of the hanging basket. A jack front supporting base is arranged on the hanging leg of the hanging basket and connected with the hydraulic jack. A rear pulley is arranged on a rear fulcrum of a main beam of the hanging basket. The travelling method solves the problem that a hanging basket in a suspended poured arch bridge crawls along an arc-shaped face, the efficiency is low, the maneuverability and the safety of the hanging basket are improved, and the travelling speed is increased. The technology has the advantages that travelling is safe and reliable, the period is short, and operation is convenient, and the hanging basket is suitable for travelling on an arch ring and a bridge floor large in gradient.

Description

technical field [0001] The invention relates to a construction technology for a cantilever pouring arch bridge, in particular to a walking method for a cantilever pouring arch bridge hanging basket push-up type crawler small tank. Background technique [0002] The construction technology of suspended cast arch bridges with hanging baskets is still under development in China. Currently, there are only two types of hanging baskets: the regular triangle hanging basket and the inverted triangle hanging basket. The hanging basket is suitable for the construction and crawling of the arch ring. Domestic hanging basket walking is mostly carried out on bridge decks with small slopes, and the technology of crawling on the arc of the arch ring is not mature enough, and the form is mostly borrowed from the walking form (traction type) of hanging baskets on cantilevered beam bridges. According to the walking statistics of various hanging baskets in China, the walking forms include manua...

AI Technical Summary

Problems solved by technology

The high-mobility push form of hydraulic jack + tracked small tank is adopted. The "hydraulic continuous jack" increases the dynamic performance of the hanging basket and reduces the frequent conversion of reaction force blocks. The "tracked small tank" changes the traditional hanging basket rowing sliding The walking is crawler rolling walking, which reduces the friction of walking and successfully solves the technical problem of low operating efficiency of the hanging basket

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