Cast-in-place RC and prefabricated UHPC combined box arch structure and construction method
A technology of arch structure and combined box, which is applied in the direction of arch bridges, erection/assembly bridges, bridge materials, etc. It can solve problems such as complex erection of arch ring brackets, difficulty in erecting formwork, and excessive load-bearing, achieving good application prospects, reducing self-weight and Maintenance cost, reasonable structure effect
Pending Publication Date: 2020-11-20
SHANDONG LUQIAO GROUP +1
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Problems solved by technology
[0004] The purpose of the present invention is to provide a cast-in-place RC and prefabricated UHPC combined box arch structure and construction method for the problems of difficult formwork erection, complex arch ring support erection and excessive load-bearing caused by cast-in-place reinforced concrete box-section arches.
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[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0027] In the description of the present invention, it should be noted that the directions indicated by the terms "vertical", "upper", "lower", "horizontal" etc.
[0028] The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and it is only for the convenience of describing the utility and simplification of the description.
[0029] described, rather than indicating or implying that the device o...
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The invention provides a cast-in-place RC and prefabricated UHPC combined box arch structure and a construction method to solve the problems that due to a cast-in-place reinforced concrete box-shapedsection arch, a formwork is difficult to erect, an arch ring support is complex to erect, and bearing is too large. The cast-in-place RC and prefabricated UHPC combined box arch structure is integrally in a parabola shape, is longitudinally divided into one or more box chambers and is transversely divided into multiple sections of combined units. Each combination unit comprises a cast-in-place RCbottom plate and a prefabricated UHPC groove type component. Each cast-in-place RC bottom plate is provided with a first groove formed downwards. Each prefabricated UHPC groove type component is provided with a second groove formed upwards. The prefabricated UHPC groove type components are arranged on the outer side of the cast-in-place RC bottom plates, and the cast-in-place RC bottom plates andthe prefabricated UHPC groove type components are connected through joints, so that a hollow box type structure is formed between first grooves and the second grooves; and connecting ribs are arrangedbetween the adjacent combined units.
Description
technical field [0001] The invention relates to a cast-in-situ RC and prefabricated UHPC composite box arch structure and a construction method, belonging to the technical field of bridges. Background technique [0002] Reinforced concrete arch bridges are often used in the form of arch bridges. Due to their high self-weight, box-shaped sections are generally used to reduce the self-weight, but box-shaped sections will make it difficult to set the formwork in the box. In addition, when using the construction method of full hall support, the support erection required by the cast-in-situ arch ring is too complicated and the support load is too large. Economic benefits of concrete arch bridges. [0003] In order to solve the above problems, a better way is to optimize the design of the section structure of the arch ring accordingly, reduce the workload of concrete casting in the box arch and the formwork erection workload in the box room, so as to reduce the construction diffi...
Claims
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IPC IPC(8): E01D4/00E01D2/04E01D21/00E01D101/26
CPCE01D4/00E01D2/04E01D21/00E01D2101/26
Inventor 王言磊李传贵迟作强袁继生刘君平孙成林卢绍斌戚永博
Owner SHANDONG LUQIAO GROUP