Abrégé

A method for removal of a temporary support system for a road bridge pre-fabricated small box girder-type concealed bent cap, and equipment therefor. The removal method comprises the following steps: removing cantilever beams; removing lateral pier support systems and loading same onto a truck; removing outer-side main beam sections connected to lateral pier support systems and loading same onto a truck; removing, horizontally displacing, and lowering a main beam middle section connected to the main pier support system; hoisting, lowering, and laying flat a main truss system, and loading same onto a truck; and removing a main pier vertical support system and a pad beam.

Classes IPC  ?

• E01D 22/00 - Procédés ou appareils pour réparer ou renforcer les ponts existants
• E01D 21/00 - Procédés ou appareils spécialement adaptés pour ériger ou assembler des ponts

Abrégé

A temporary support system for a road bridge pre-fabricated small box girder-type concealed bent cap, and a method of constructing same. The support system comprises a main beam, a main pier support system, and a lateral pier support system; the main beam is arranged on the transverse side of road bridge piers; the main pier support system is disposed on the transverse side of a main pier area and is located under the main beam; the lower end of the main pier support system is fixed to a main pier bearing platform, whereas the upper end is fixed to the main beam; the lateral pier support system is disposed on the transverse side of a lateral pier area and is located below the main beam; and the lower end of the lateral pier support system is fixed to a lateral pier bearing platform, whereas the upper end is fixed to the main beam.

Classes IPC  ?

• E01D 21/00 - Procédés ou appareils spécialement adaptés pour ériger ou assembler des ponts
• E01D 2/04 - Ponts caractérisés par la section transversale de la structure portante de la travée du type à poutre en caisson
• E01D 19/02 - Piles; Culées

Abrégé

A temporary support system for a road bridge pre-fabricated small box girder-type concealed bent cap, and a method of constructing same. The support system comprises a main beam (11), a main pier support system, and lateral pier support systems; the main beam (11) is arranged on the transverse side the road bridge piers; the main pier support system is disposed on the transverse side of a main pier area and is located under the main beam (11); the lower end of the main pier support system is fixed to a main pier bearing platform (21), whereas the upper end is fixed to the main beam (11); each lateral pier support system is disposed on the transverse side of a lateral pier area and is located below the main beam (11); and the lower end of each lateral pier support system is fixed to a lateral pier bearing platform (31), whereas the upper end is fixed to the main beam (11). Between the main pier area and the lateral pier areas there is only a large-span main beam (11) arranged in the transverse direction, and no other support systems arranged in the vertical direction. This allows for vehicle operating space, and thus facilitates assembly and disassembly of the present support system. In addition, the support system has a high load-bearing capacity, thus meeting support requirements for pre-fabricated small box girder-type concealed bent caps.

Classes IPC  ?

• E01D 21/00 - Procédés ou appareils spécialement adaptés pour ériger ou assembler des ponts
• E01D 1/00 - Ponts en général
• E01D 19/02 - Piles; Culées

Abrégé

A method for removal of a temporary support system for a road bridge pre-fabricated small box girder-type concealed bent cap, and equipment therefor. The removal method comprises the following steps: (1) removing cantilever beams (12, 13); (2) removing lateral pier support systems (34) and loading same onto a truck; (3) removing outer-side main beam sections (11-1) connected to lateral pier support systems (34) and loading same onto a truck; (4) removing, horizontally displacing, and lowering a main beam middle section (11-2) connected to the main pier support system (2); (5) hoisting, lowering, and laying flat a main truss system (25), and loading same onto a truck; and (6) removing a main pier vertical support system (24) and a sleeper beam (33). The present method for removal allows for rapid removal of a large-scale temporary support system from within the area of pre-fabricated small box girders following completion of pre-fabricated small box girder construction, and obviates the need for the operating space used by such equipment as traditional, heavy-duty truck cranes and crawler cranes.

Classes IPC  ?

• E01D 24/00 - Procédés ou appareils pour le démantèlement des ponts
• E04G 23/08 - Démolition des bâtiments