CN209636969U

CN209636969U - CFRP sling intersects rope branch structure

Info

Publication number: CN209636969U
Application number: CN201822121993.4U
Authority: CN
Inventors: 刘越; 田学帅; 薛素铎
Original assignee: Beijing University of Technology
Current assignee: Beijing University of Technology
Priority date: 2018-12-18
Filing date: 2018-12-18
Publication date: 2019-11-15
Anticipated expiration: 2028-12-18

Abstract

CFRP sling intersects rope branch structure and is suitable for large-span space structure field, including a planar rondure outer ring, CFRP sling is anchored on round outer ring using waveform anchor, CFRP sling is staggered to form plane cable net two-by-two, sunflower-shaped, pattern or irregular type can be set as needed into rope net, arrangement gravity stiffness block fixture clamping at crossover node.This structure is not provided with inner ring, and Suo Li is distributed more average in CFRP sling, and the fracture of a CFRP sling will not cause structure is whole to collapse, and the ability of structure progressive collapse-resisting is stronger, and the robustness of structure is preferable；This structure uses single layer plane cable net, resists wind suction using the gravity stiffness block at each node, overall structure is slim and graceful, beautiful；Traditional rigid drag-line is substituted with CFRP sling, can be saved with rope amount, is reduced the total cost of structure, is realized good economy.

Description

CFRP sling intersects rope branch structure

Technical field

The utility model is a kind of CFRP sling intersection rope branch structure, belongs to a kind of novel single layer rope branch structural system, It is primarily adapted for use in large-span space structure field, such as stadium, gymnasium, exhibition center.

Background technique

Rope branch structure is to be formed by load-carrying members by flexible tensile rope and its edge member, is mainly used in architectural engineering In.The material of its rope can be using materials such as steel tendon, wirerope, steel hinge line, chain, round steel.In order to be formed most possibly Large space of the interior without column, to meet the needs for accommodating competition area, large-scale displaying and aircraft, as stadium, gymnasium, exhibition Rope branch structure is also widely used in long span building as shop and hangar.

Suspended ribbon bridge is to be formed by load-carrying members by the floorings of flexible sling bearing thereon, is mainly used in science of bridge building In.The material of sling mainly uses steel.

In order to meet the requirement of large space, large span etc., while the more safety in order to become structure mentions herein with merrily and lightheartedly A kind of CFRP sling intersection rope branch structure is gone out, has been the theory of suspended ribbon bridge to be used in rope branch structure, and use CFRP this New material substitutes steel as sling.

Summary of the invention:

Purpose of the utility model is to solve presently, there are building span be restricted it is insufficient with collapse resistant capacity Problem proposes a kind of CFRP sling intersection rope branch structure type.

It includes the cable net structure system that a round outer ring and CFRP sling are staggered to form two-by-two.The CFRP rope net can Sunflower-shaped, pattern or irregular type is set as needed into, is not provided with inner ring.CFRP sling is anchored on round outer ring, CFRP Using the fixture clamping with gravity stiffness block between sling.CFRP sling by self gravity and gravity stiffness block gravity can under Scratching becomes outstanding alignment, bears the downward load of structure, such as self weight and snow load with this；Upward wind suction is by gravity stiffness Gravity stiffness caused by block is resisted.The CFRP sling intersects rope branch structure due to using CFRP as sling, compared to Using traditional steel sling, material utilization amount can be saved, mitigates dead load, keeps structure more slim and graceful, economical；Using sling two The two single layer plane cable nets being staggered to form have novelty on aesthetics of structural design；It is not provided with inner ring, no key node, in structure Power is more average in each CFRP sling and node punishment cloth, and structure progressive collapse-resisting ability is strong, robustness is good.

Circle outer ring curve equation is as follows.In formula, r is round radius.It is in fact exactly the friendship of xoy plane and cylindrical surface Line, the origin of xoy plane are exactly the central point of round outer ring curve.

x²+y²=r²

The curvilinear equation of CFRP sling center line is exactly catenary surface of revolution for sunflower-shaped in regular pattern composite in fact With the intersection section for the perpendicular for being tangential on virtual inner ring, and two endpoints of intersection section circle outer ring curve on.Its formula is such as Under:

And its endpoint meets:

In formula, the formula of k, r definition is the same as above irregular type,It is tangent to virtual inner ring Perpendicular formula, r₀It is the radius of virtual inner ring orthographic projection curve (for an annulus) in xoy plane, (x₀,y₀) be Point on the orthographic projection curve (for an annulus).

The curvilinear equation of CFRP sling center line is exactly catenary surface of revolution for the pattern in regular pattern composite in fact With the perpendicular of the perpendicular of (or coincidence) parallel with x-axis for intersecting at cylindrical surface or (or coincidence) parallel with y-axis Intersection section, and two endpoints of intersection section circle outer ring curve on.

Its formula is as follows:

And its endpoint meets:

Or

And its endpoint meets:

In formula, the formula of k, r definition is the same as above irregular type, w is any real number, indicates that the width of grid, i are any Natural number only needs to meet | iw | < r, r are cylindrical radiuses, i.e., round outer ring curve orthographic projection curve in xoy plane (is one A annulus) radius.

The curvilinear equation of CFRP sling center line is exactly catenary surface of revolution and intersect at for irregular type in fact The intersection section of the perpendicular of cylindrical surface, and two endpoints of intersection section, on circle outer ring curve, formula is as follows:

And its endpoint meets:

In formula, k is the real constant determined by the density with gravity stiffness block node and CFRP sling density；A, b, c are The geometric parameter of sling (only needs to meet for any real number), r is cylindrical radius, i.e., round outer ring curve The radius of orthographic projection curve (for an annulus) in xoy plane.

Work progress: the assembling splicing of this structure side bar is completed, and then on ground, face handle whole CFRP sling is completed, then It is promoted to predetermined altitude, substep CFRP sling, is finally anchored on the side bar of round outer ring in batches.

From the point of view of the Mechanical Behavior Analysis of structural system, every CFRP sling can be by the feelings of other CFRP slings It is undertaken under condition from extraneous load, therefore work will not be exited because tearing occurs for other certain root CFRP slings, had very Anti- Progressive Collapse performance well.

Component in the structural system all uses tensional element, the pull resistance for making full use of CFRP sling excellent Can, economy is significant.

A kind of CFRP sling of the utility model intersects rope branch structure, the superior, progressive collapse-resisting with structural elements system The advantages that ability is strong, robustness is good, structure is slim and graceful, beautiful, good economy performance.

Detailed description of the invention

Fig. 1 is a kind of CFRP sling intersection sunflower-shaped schematic diagram of rope branch structure

Fig. 2 is a kind of CFRP sling intersection sunflower-shaped three-dimensional figure of rope branch structure

Fig. 3 is a kind of CFRP sling intersection rope branch structure pattern schematic diagram

Fig. 4 is a kind of CFRP sling intersection rope branch structure pattern three-dimensional figure

Fig. 5 is a kind of CFRP sling intersection rope branch irregular structure type schematic diagram

Fig. 6 is a kind of CFRP sling intersection rope branch irregular structure type three-dimensional figure

Fig. 7 is CFRP sling schematic diagram

Wherein 1, round outer ring

2, CFRP sling

3, the node with gravity stiffness block

Specific embodiment

A kind of CFRP sling intersection rope branch structure, belongs to a kind of novel cable net structure system, is primarily adapted for use in space structure Field.The cable net structure system being staggered to form two-by-two including a round outer ring and CFRP sling.The CFRP sling rope net can Sunflower-shaped, pattern or irregular type is set as needed into, is not provided with inner ring.CFRP sling is anchored on round outer ring, It is clamped between CFRP sling using fixture.The pulling force in CFRP sling is provided by compression shape of a saddle side bar.A kind of CFRP sling friendship Rope branch structure is pitched, with structural elements connection and reasonable arrangement, progressive collapse-resisting ability is strong, robustness is good, structure is slim and graceful, beautiful, economical The advantages that property is good.

Concrete operations: the assembling splicing of this structure outer ring is completed, and then on ground, face handle whole CFRP sling is completed, then It is promoted to predetermined altitude, substep CFRP sling, is finally anchored on the side bar of round outer ring in batches.

Claims

1. a kind of CFRP sling intersects rope branch structure, it is characterised in that: handed over two-by-two including a planar rondure outer ring, CFRP sling The gravity stiffness block arranged at the rope branch structural system of mistake formation and each node；The CFRP sling rope branch system is arranged to sunflower Type, pattern or irregular type, and there is no inner ring；CFRP sling is anchored on round outer ring using waveform anchor, CFRP sling it Between using arrangement gravity stiffness block fixture clamping；

The intersection section for the perpendicular that irregular type is catenary surface of revolution and intersects at cylindrical surface, and intersection section Two endpoints are on circle outer ring curve.

2. a kind of CFRP sling according to claim 1 intersects rope branch structure, it is characterised in that:

Planar rondure outer ring, equation are

x²+y²=r²

In formula, r is the radius of round outer ring.

3. a kind of CFRP sling according to claim 1 intersects rope branch structure, it is characterised in that:

CFRP sling uses CFRP single layer sling.

4. a kind of CFRP sling according to claim 1 intersects rope branch structure, it is characterised in that:

Using the fixture clamping of arrangement gravity stiffness block between CFRP sling and CFRP sling, generated using the gravity stiffness block Gravity stiffness resists wind suction.

5. a kind of CFRP sling according to claim 1 intersects rope branch structure, it is characterised in that:

It is sunflower-shaped, the intersection section for being catenary surface of revolution with the perpendicular for being tangential on virtual inner ring, and two of intersection section Endpoint is on circle outer ring curve；

The friendship that pattern is catenary surface of revolution and intersects at the parallel with x-axis of cylindrical surface or the perpendicular being overlapped Line segment or catenary surface of revolution and the intersection section for intersecting at the parallel with y-axis of cylindrical surface or the perpendicular being overlapped, and Two endpoints of intersection section are on circle outer ring curve.