FRAGMENTED-ASSEMBLY-TYPE VARIABLE CROSS-SECTION BOX GIRDER STRUCTURE AND CONSTRUCTION METHOD

WIPO Patent Application WO/2024/082711

A1

Provided in the present application are a fragmented-assembly-type variable cross-section box girder structure and a construction method. The variable cross-section box girder structure comprises a plurality of sections, which are assembled with each other; each section comprises a top plate unit, two web plate units, and a bottom plate unit; a plurality of vertical web plate reinforcements are pre-buried in each web plate unit, and a threaded sleeve is connected to each of an upper end and a lower end of each vertical web plate reinforcement; vertical reinforcement channels are provided in the top plate units and the bottom plate units; and vertical reinforcements are arranged in the vertical reinforcement channels of the top plate units and the bottom plate units in a penetrating manner and are respectively in threaded connection with the threaded sleeves at two ends of the vertical web plate reinforcements. When a box girder is hoisted during construction, the units of each section are respectively hoisted and connected as a whole section by means of the vertical reinforcements. In the present application, the use of large apparatuses can be reduced, and the prefabricated construction difficulty and cost are reduced.

LU GUANNAN (CN)
LIU DANNA (CN)
SHAO WENZE (CN)
XIAO XIANGRONG (CN)
XIAN ZHENGHONG (CN)

PCT/CN2023/104508

April 25, 2024

June 30, 2023

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ROAD & BRIDGE INT CO LTD (CN)

E01D21/10; E01D2/04; E01D19/00

CN105484142A	2016-04-13
CN108660912A	2018-10-16
CN115450101A	2022-12-09
CN103233421A	2013-08-07
KR20130136874A	2013-12-13

GRANDER IP LAW FIRM (CN)

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