CN111663446A

CN111663446A - Sling structure for bridge construction

Info

Publication number: CN111663446A
Application number: CN202010613122.3A
Authority: CN
Inventors: 石建功; 王年翠; 蔡正明; 徐宇雄
Original assignee: Nanjing Yuanlang Construction Engineering Co ltd
Current assignee: Nanjing Yuanlang Construction Engineering Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-09-15

Abstract

The invention belongs to the technical field of bridge construction application, and particularly discloses a sling structure for bridge construction, which comprises a sling steel wire rope, a first conical casting block and a second conical casting block which are symmetrically arranged on the sling steel wire rope, a first sling steel wire rope connecting block and a second sling steel wire rope connecting block which are arranged at two ends of the sling steel wire rope, and a first sling anchor head and a second sling anchor head which are respectively connected with the first sling steel wire rope connecting block and the second sling steel wire rope connecting block. The sling structure for bridge construction has the beneficial effects that: the bridge beam is reasonable in design, convenient, accurate and stable connection, assembly and fixation such as a bridge bearing member, a suspender and a stiffening beam can be completed between the bridge beam and the bridge component, deflection deformation caused by load reduction after assembly is guaranteed, and the stability and safety of the whole structure of the bridge are improved.

Description

Sling structure for bridge construction

Technical Field

The invention belongs to the technical field of bridge construction application, and particularly relates to a sling structure for bridge construction.

Background

The bridge is generally a structure which is erected on rivers, lakes and seas and allows vehicles, pedestrians and the like to smoothly pass through. In order to adapt to the modern high-speed developed traffic industry, bridges are also extended to be constructed to span mountain stream, unfavorable geology or meet other traffic needs, so that the buildings are convenient to pass. The bridge generally comprises an upper structure, a lower structure, a support and an auxiliary structure, wherein the upper structure is also called a bridge span structure and is a main structure for spanning obstacles; the lower structure comprises a bridge abutment, a bridge pier and a foundation; the support is a force transmission device arranged at the supporting positions of the bridge span structure and the bridge pier or the bridge abutment; the auxiliary structures refer to bridge end butt straps, tapered revetments, diversion works and the like.

A bridge sling structure is a bridge with cables (or steel chains) suspended from cable towers and anchored to both banks (or both ends of bridge) as main load-bearing members of its upper structure, and features that the geometric shape of cable is determined by the balance of forces, which is generally similar to a parabola.

For the bridge, a sling structure for bridge assembly is extremely important, and the reasonability of the design of the sling structure directly influences the construction and assembly efficiency, the stability of the overall structure of the assembled bridge and the like.

Therefore, in view of the above problems, the present invention provides a suspension cable structure for bridge construction.

Disclosure of Invention

The purpose of the invention is as follows: the invention aims to provide a sling structure for bridge construction, which is reasonable in design, can be conveniently, accurately and stably connected and assembled with bridge components such as bridge bearing members, suspenders, stiffening beams and the like, ensures that the deflection deformation caused by load is reduced after assembly, and improves the stability and the safety of the whole structure of a bridge.

The technical scheme is as follows: the invention provides a sling structure for bridge construction, which comprises a sling steel wire rope, a first conical casting block and a second conical casting block which are symmetrically arranged on the sling steel wire rope, a first sling steel wire rope connecting block and a second sling steel wire rope connecting block which are arranged at two ends of the sling steel wire rope, and a first sling anchor head and a second sling anchor head which are respectively connected with the first sling steel wire rope connecting block and the second sling steel wire rope connecting block.

According to the technical scheme, the sling structure for bridge construction further comprises a first U-shaped positioning fixture block and a second U-shaped positioning fixture block which are respectively connected with the first sling anchor head and the second sling anchor head.

According to the technical scheme, the overall diameter of the sling steel wire rope is 60mm, the structure is 8 × 55SWS +1WR, the tensile strength is 1770MPa, and the minimum breaking force is 2200 MPa.

According to the technical scheme, the first conical casting block and the second conical casting block are respectively made of Zn2 and are respectively die-cast with the sling steel wire rope into a whole, and the weight of the first conical casting block and the weight of the second conical casting block are respectively 12.553K.

According to the technical scheme, the maximum end diameter size of the first conical ingot or the second conical ingot is 150mm, and the minimum end diameter size of the first conical ingot or the second conical ingot is 90 mm.

Compared with the prior art, the sling structure for bridge construction has the beneficial effects that: the bridge beam is reasonable in design, convenient, accurate and stable connection, assembly and fixation such as a bridge bearing member, a suspender and a stiffening beam can be completed between the bridge beam and the bridge component, deflection deformation caused by load reduction after assembly is guaranteed, and the stability and safety of the whole structure of the bridge are improved.

Drawings

FIG. 1 is a schematic structural view of a sling structure for bridge construction according to the present invention;

FIG. 2 is a schematic cross-sectional view of a first or second conical pig of a bridge construction sling structure of the present invention;

FIG. 3 is a schematic view of a sling wire rope of the sling structure for bridge construction according to the present invention;

fig. 4 is a schematic structural view of an assembly use state of a sling structure for bridge construction according to the present invention.

Detailed Description

The invention is further elucidated with reference to the drawings and the embodiments.

Examples

The sling structure for bridge construction as shown in fig. 1, fig. 2, fig. 3 and fig. 4 comprises a sling wire rope 1, a first conical casting block 2 and a second conical casting block 3 which are symmetrically arranged on the sling wire rope 1, a first sling wire rope connecting block 4 and a second sling wire rope connecting block 5 which are arranged at two ends of the sling wire rope 1, and a first sling anchor head 6 and a second sling anchor head 7 which are respectively connected with the first sling wire rope connecting block 4 and the second sling wire rope connecting block 5.

Preferably, the sling structure for bridge construction further comprises a first U-shaped positioning fixture block 8 and a second U-shaped positioning fixture block 9 which are respectively connected with the first sling anchor head 6 and the second sling anchor head 7; the overall diameter of the sling steel wire rope 1 is 60mm, the structure is 8 × 55SWS +1WR, the tensile strength is 1770MPa, and the minimum breaking tension is 2200 MPa; the first conical casting block 2 and the second conical casting block 3 are respectively made of Zn2 and are respectively die-cast with the sling steel wire rope 1 into a whole, and the weight of the first conical casting block 2 and the weight of the second conical casting block 3 are respectively 12.553K; and the maximum end diameter size of the first taper ingot 2 or the second taper ingot 3 is 150mm, and the minimum end diameter size is 90 mm.

The sling structure for bridge construction has reasonable design, can be fixedly connected and assembled with bridge components conveniently, accurately and stably, ensures that the deflection deformation caused by load is reduced after assembly, and improves the stability and safety of the whole structure of the bridge.

The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.

Claims

1. The utility model provides a hoist cable structure of bridge construction which characterized in that: the cable comprises a sling steel wire rope (1), a first conical casting block (2) and a second conical casting block (3) which are symmetrically arranged on the sling steel wire rope (1), a first sling steel wire rope connecting block (4) and a second sling steel wire rope connecting block (5) which are arranged at two ends of the sling steel wire rope (1), and a first sling anchor head (6) and a second sling anchor head (7) which are respectively connected with the first sling steel wire rope connecting block (4) and the second sling steel wire rope connecting block (5).

2. The sling structure for bridge construction as defined in claim 1, wherein: the sling structure for bridge construction further comprises a first U-shaped positioning clamping block (8) and a second U-shaped positioning clamping block (9) which are respectively connected with the first sling anchor head (6) and the second sling anchor head (7).

3. The sling structure for use in bridge construction according to claim 1, wherein: the overall diameter of the sling steel wire rope (1) is 60mm, the structure is 8 × 55SWS +1WR, the tensile strength is 1770MPa, and the minimum breaking tension is 2200 MPa.

4. The sling structure for use in bridge construction according to claim 1, wherein: the first conical casting block (2) and the second conical casting block (3) are respectively made of Zn2 and are respectively die-cast with the sling steel wire rope (1) into a whole, and the weights of the first conical casting block (2) and the second conical casting block (3) are 12.553Kg respectively.

5. The sling structure for use in bridge construction according to claim 4, wherein: the first conical ingot (2) or the second conical ingot (3) has a maximum end diameter size of 150mm and a minimum end diameter size of 90 mm.