Connecting device for circular-section prefabricated pier and pile foundation and mounting method thereof
A technology for connecting devices and bridge piers, which is applied to bridges, bridge parts, bridge construction, etc., can solve the problem of blank connection of prefabricated structures, and achieve the effects of convenient and simple installation method, strong practicability and simple structure
Pending Publication Date: 2020-11-06
CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST +1
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Problems solved by technology
[0004] However, most of the substructures of bridges in mountainous areas and highway bridges are dominated by pile-column piers with circular cross-sections. The current connection technology is not suitable for direct application to such structures, and the connection of prefabricated structures is still blank.
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[0046] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.
[0047] Please also refer to figure 1 and figure 2 , The present invention provides a connection device between a prefabricated bridge pier with a circular cross-section and a pile foundation, including a pier main reinforcement 1 , a pile foundation main reinforcement 2 , a flange connector 3 and a reinforcement sleeve 4 .
[0048] The main reinforcement 1 of the bridge pier has one end embedded in the prefabricated bridge pier 100 and the other end protruding from the connecting end of the prefabricated bridge pier 100 to extend outward. In this embodiment, the prefabricated pier 100 is cylindrical.
[0049] O...
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The invention discloses a connecting device for a circular-section prefabricated pier and a pile foundation. The connecting device comprises pier main reinforcements, pile foundation main reinforcements, flange connecting pieces and steel bar sleeves. The flange connecting piece comprises a steel pipe and a flange plate with the two ends fixedly connected, stiffening ribs and shear nails are further arranged on the flange connecting piece, inner side steel bar holes allowing pier main reinforcements to penetrate through and outer side steel bar holes allowing pile foundation main reinforcements to penetrate through are formed in the flange plate, and therefore the prefabricated pier and the pile foundation are connected together. The invention further discloses a mounting method of the connecting device for the circular-section prefabricated pier and the pile foundation. The mounting method comprises the steps that the flange connecting pieces and the prefabricated pier are integrallyprefabricated, pile foundation main ribs are exposed out of the slope head of the pile foundation, and the flange connecting pieces and the prefabricated pier are integrally mounted on the pile foundation main ribs. By means of the device and the installation method, the problem of steel bar connection on different straight lines is solved for the first time, practicability is high, the stress state is clear, the structure is simple, installation is convenient, machining and manufacturing are easy, and large-scale application and popularization can be achieved.
Description
technical field [0001] The invention relates to the technical field of prefabricated concrete assembly, in particular to a connection device and an installation method for a circular section prefabricated bridge pier and a pile foundation. Background technique [0002] Segmental prefabricated piers have the following advantages over traditional cast-in-place concrete piers: ① Factory prefabrication of pier column segments can improve the quality of pier columns and shorten construction time on site. For bridges in transportation hub areas, it can Reduce traffic interference on the bridge site; ②The construction of some bridge piers usually requires construction personnel to be in dangerous areas such as high altitude, sea, highway or close to power lines, and the construction of segmental prefabricated bridge piers can greatly reduce the construction cost. The time spent by personnel in these dangerous areas improves the safety of the construction site; ③Segmental prefabrica...
Claims
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Login to View More IPC IPC(8): E01D19/02E01D21/00E02D27/12
CPCE01D19/02E01D21/00E02D27/12
Inventor 曾鹏蔡军李小斌安永日周智海黄康汪宏
Owner CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST