Multidirectional rotational symmetric cable-stayed bridge structure with central roundabout and construction method
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of rotational symmetry and construction method, which is applied in the direction of cable-stayed bridges, bridges, bridge construction, etc., to achieve the effect of improving traffic safety and traffic efficiency, improving crack resistance safety, and high degree of industrialization
Pending Publication Date: 2022-07-15
SOUTHEAST UNIV
View PDF0 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, how to apply cable-stayed bridges to multi-directional intersections to solve the traffic functions of multi-directional intercommunication and take into account the mechanical characteristics remains to be studied
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0058] like Figure 1 to Figure 5 As shown, a multi-directional rotationally symmetrical cable-stayed bridge structure with a central roundabout includes a central bridge tower 10, a central roundabout 20 and N A bridge span structure 30 . In this embodiment, preferably N =3.
[0059] The central bridge tower includes N =3 tower limbs 11 and several tower limb connecting structures 12.
[0060] N = 3 tower legs are uniformly and vertically arranged along the central axis of the central bridge tower, and the bottom of each tower leg is fixed on the platform 50 or the foundation. The included angle between two adjacent tower legs is preferably 120°.
[0061] The two adjacent tower limbs are connected by at least one tower limb connecting structure, N = The connection structure of the tower legs between the three tower legs is preferably a multi-layer annular design, which effectively improves the integrity of the central bridge tower.
[0062] The central roundabout is c...
Embodiment 2
[0070] like Image 6 and Figure 7 As shown, Embodiment 2 is basically the same as Embodiment 1, except that, N =4. At this time, the number of bridge span main girders and tower limbs is four, and the bridge span main girders are arranged radially on the central roundabout in four directions. The bridge span structure or the included angle between adjacent tower limbs are both 90°, which is more common in practical engineering than Example 1.
[0071] A construction method for a multi-directional rotationally symmetrical cable-stayed bridge structure with a central roundabout, comprising the following steps:
[0072] Step 1. The construction of the substructure and the central bridge tower includes the following steps.
[0073] Before the tower limb construction, site leveling and substructure construction, such as bridge abutments, bridge piers, caps, and pile foundations, should be done.
[0074] Step 1A. Construction of tower limbs: construction on a flat cap or found...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses a multidirectional rotational symmetric cable-stayed bridge structure with a central roundabout and a construction method. The multidirectional rotational symmetric cable-stayed bridge structure comprises a central bridge tower, the central roundabout and N bridge span structures, wherein N is greater than or equal to 2. The center bridge tower comprises N tower limbs and a plurality of tower limb connecting structures. The central roundabout is coaxially arranged on the periphery of the central bridge tower, and piers are arranged below the roundabout. The N bridge span structures are evenly distributed on the periphery of the central roundabout in a radial mode, and road intercommunication is achieved through the central roundabout. The bridge span structure mainly comprises bridge span main beams in N directions, and the central axes of the bridge span main beams and the corresponding tower limbs are located on the same vertical plane. Each bridge span main beam is connected with the corresponding tower limb in a tensioning mode through a stay cable. The multi-direction rotational symmetric cable-stayed bridge structure with the central roundabout is adopted, reasonable stress of the bridge towers, the bridge span structure and the roundabout is guaranteed, meanwhile, the motor vehicle passing capacity of the multi-way intersection is improved, people and vehicle separation is achieved through the viaduct form, and traffic safety and passing efficiency are improved.
Description
technical field [0001] The invention relates to a cable-stayed bridge structure and a construction method, in particular to a multi-directional rotationally symmetrical cable-stayed bridge structure with a central ring island and a construction method. Background technique [0002] With the rapid development of my country's economic construction, the road traffic volume is increasing, and the traffic efficiency at the intersection of urban roads is particularly worthy of attention. The traffic flow here is dense and the smoothness of traffic is poor. The most common solution is to use viaducts to provide multi-directional traffic, or to ease the conflict points of traffic flow through roundabouts. However, if a multi-directional intersection requires a bridge structure with a large span (eg, greater than 50m) to achieve multi-directional interconnection, there are few bridge options available. [0003] Urban cable-stayed bridges often play an important role in urban constru...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more