CN114164931A

CN114164931A - Height-width ratio exceeding and super high-rise steel structure elevator with horizontal support

Info

Publication number: CN114164931A
Application number: CN202111316669.8A
Authority: CN
Inventors: 李阳
Original assignee: Wuhan University of Science and Engineering WUSE
Current assignee: Wuhan University of Science and Engineering WUSE
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-03-11

Abstract

The invention relates to a scenic spot sightseeing elevator with an over-limit height-width ratio and an ultra-high steel structure, which is a combined structure of an ultra-high frame with a support and a truss steel structure, and comprises a main steel frame structure and a support truss arranged on the main structure, wherein the main steel frame structure comprises an elevator shaft and a steel structure auxiliary frame structure arranged outside the shaft, the auxiliary steel frame structure comprises steel columns arranged outside the shaft and a plane frame structure formed by connecting a plurality of steel columns together, and the main structure is made of H-shaped steel. The secondary structure-truss structure comprises a horizontal support, a profiled steel sheet and concrete combined floor, a metal roof board roof and a lighting glass roof. Compared with the prior art, the invention adopts the super high-rise steel structure system combining the steel frame structure and the space truss structure, thereby not only reducing the number of steel columns, steel beams and steel supports, the size of the cross section and the consumption of steel, reducing the cost, but also having stronger wind and earthquake resistance, reducing the whole weight of the structure, and greatly improving the integrity and the stability of the structure. The method also has the advantages of flexible arrangement, high construction speed and the like.

Description

Height-width ratio exceeding and super high-rise steel structure elevator with horizontal support

Technical Field

The invention belongs to the technical field of ultralimit and ultrahigh-rise steel structures, and relates to an ultralimit height-width ratio and ultrahigh-rise steel structure sightseeing elevator.

Background

In recent years, with the rapid development of economic society and the progress of social culture in China, the tourism industry is rapidly developed to meet different requirements of tourists on each level, brand-new playing experience is brought to the tourists, and the construction of transportation facilities in scenic spots is also different day by day. In order to attract vast tourists in each tourist attraction, particularly in the tourism industry of natural scenic spots, a plurality of transportation facilities rich in local characteristics are built. The sightseeing elevator has unique advantages no matter being used as a scenic spot or providing convenience for passenger service, or being damaged to the environment. Therefore, the sightseeing elevator also becomes a hot construction project in the construction and development of the tourism industry in natural scenic spots. In natural scenic spots, sightseeing elevators, particularly elevators with an over-limit height-width ratio, are mostly built in mountains or cliffs, and due to the characteristic that the height-width ratio of a main structure is large, other constraint conditions except for the bottom are generally required to be set for the main structure so as to ensure the stability and reasonable structural rigidity of the structure.

At present, a very widely used super high-rise steel structure is a frame-support structure system, wherein the frame-support structure system is composed of a plurality of steel columns, steel beams and steel supports, supports are provided for an overall structure to improve the lateral rigidity resistance of the structure, the materials are mostly combined by H-shaped steel or steel pipe concrete, and a large number of supports are required to be matched for reinforcement to improve the lateral load resistance and the gravity load resistance of the structure. However, in order to ensure sufficient wind resistance and seismic performance, the structure usually needs to use more steel columns, so that the overall weight is larger, a large amount of steel needs to be consumed, the cost is higher, and the construction efficiency is reduced. Meanwhile, in a scenic spot, due to the reason of the terrain and the topography, the problems of use function, safety and the like are met by combining with a terrain design position. Meanwhile, in the embodiment, because the structure has the characteristics of small floor area and high height, and belongs to a high-rise structure with a seriously overrun height-thickness ratio, a steel structure system with horizontal support is used.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide an ultra-high-rise steel structure with high wind resistance, high seismic performance, low steel consumption, high construction speed and ultra-high aspect ratio.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a scenic spot surpasses limit aspect ratio, super high-rise steel construction, is the combination of super high-rise frame and truss steel construction that a area supported, and this structure includes main part steel frame construction and sets up the truss on main part construction, and main part steel frame construction includes the elevator well and sets up at the outside steel construction auxiliary frame structure of well, and this auxiliary steel frame construction is including establishing the steel column in the well outside and the planar frame structure who links many steel columns together and form, and main part construction is H shaped steel. The secondary structure-truss structure comprises a horizontal support, a profiled steel sheet and concrete combined floor, a metal roof board roof and a lighting glass roof.

As a preferable technical scheme, the above-ground horizontal support form adopts a triangular space truss structure form, extends to a gable rock body at an angle of 45 degrees on a plane view and is rigidly connected with the reinforced concrete wall cylinder body. And (3) after the mountain body is anchored at the rock wall through a rock anchor rod, concrete is poured, the steel beam is rigidly connected with the steel column through an equal strength principle, and the column foot of the steel column is rigidly connected with the foundation.

According to the preferable technical scheme, the steel beam and the steel column are all made of H-shaped steel, and the horizontal support is made of a round steel pipe.

As a preferable technical scheme, the underground horizontal support mode adopts a plane truss structure mode.

As a preferred technical scheme, the structural foundation adopts a pile foundation, and the foundation grade is grade A.

As a preferable technical scheme, the installation method is divided into 3 parts for installation by taking each 12 meters as a unit, and the steel structure is segmented and assembled, so that the structure can be smoothly hoisted. The construction process is realized by adopting a steel cable to transport main components and a vertical hanging basket to assist installation by combining the construction experience and characteristics of the steel cable.

As a preferable technical scheme, the transportation scheme adopts the mode that a hoisting machine is arranged on the mountain top, the members are hoisted to the mountain top from the mountain feet one by one through hoisting cables, and then the members are hoisted vertically downwards from the mountain top. The transportation difficulty of mountain area members, steel and equipment is solved.

As an optimized technical scheme, the structure is 368m at the highest, one horizontal support is needed to be arranged at each interval of 24m, the installation is very difficult, a constructor cannot quickly reach a construction working face, a rail hanging basket is designed on the rock face and used for transporting the constructor and construction equipment up and down to reach the elevation of the rock face, a temporary working face gallery platform is firstly constructed, then rock anchor rod excavation and concrete pouring are carried out, and in the second step, a vertical hanging basket is used for hoisting a horizontal truss. Hoisting to determine the elevation, positioning and installing the two ends by constructors, temporarily installing the rock end, temporarily fixing the rock end by using an installing bolt, pin-jointing the steel structure end, fixing the rock end at one time, and fixing the rock end by using a permanent bolt after the perpendicularity of the main structure is adjusted.

As a preferable technical scheme, the two modes of welding and bolt connection are compared, from the safety perspective, bolt connection is finally selected, construction is convenient, and joint connection is guaranteed.

As a preferred technical scheme, the operation platform is characterized in that steel crawling ladders are arranged from the bottom of an elevator structure to the top of the elevator structure step by step, constructors climb to the operation platform from the crawling ladders, namely safety protection platforms are arranged at intervals of 24 meters along the height direction, 2 meters extend out along the periphery of a frame, high-strength safety nets are arranged for preventing and reducing threats to lower-part personnel caused by high falling object speed, meanwhile, visual and psychological safety guarantees are also given to the high-altitude constructors, and the operation platform is detached when the elevator is reserved.

As a preferred technical scheme, the scaffold is provided. The scaffold is built step by step along the peripheral round of structure on operation platform, and every 6m is the one-level to set up the crossbeam at the tip and stably connect the scaffold, assemble the structure with convenient constructor. According to the characteristics of the structure, every 24m is a construction stage, the corresponding total height of the scaffold is 24m, when the construction is completed by one 24m stage, the scaffold component can be conveyed to the next operating platform through the construction hanging basket on the top of the mountain, and the scaffold component is built according to the previous scaffold mounting sequence, so that the construction is circulated until the scaffold is constructed to the top of the sedan.

Compared with the prior art, the invention has the following characteristics:

(1) the high-rise steel structure system combining the main body steel frame structure and the truss structure is adopted, the number of steel columns, the sections of the steel columns and the consumption of steel are reduced, the cost is further reduced, the wind resistance and the earthquake resistance are sufficient, meanwhile, the number of the steel columns is small, the overall weight is reduced, the influence of the steel columns and other structural components on the building function is reduced, the high-rise steel structure system is suitable for super high-rise buildings and super high-rise structures with the height of more than 500m, the lateral rigidity of the structure commonly existing in the super high-rise steel structure is effectively solved, and the consumption of steel of the structure can be remarkably reduced;

(2) and a steel structure system is adopted, so that the building structure is flexible in arrangement, the construction speed is high, and the construction industrialization degree is high.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of the whole structure of a steel structure with horizontal support in the embodiment;

FIG. 2 is a schematic structural diagram of a main body with a horizontal supporting steel structure in the embodiment;

FIG. 3 is a schematic diagram of an underground structure with a horizontal supporting steel structure in the embodiment;

the notation in the figure is:

the structure comprises 1 elevator hoistway, 2 auxiliary frames, 3 frame columns, 4 frame beams, 5 truss structures, 6-overground horizontal support upper and lower chords, 7-web members, 8-platform plates, 9-rock mass, 10-underground reinforced concrete wall and 11-underground horizontal support rod.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Example (b):

the sightseeing elevator with the ultra-high-rise steel structure and the over-limit height-width ratio as shown in figure 1 comprises a main body framework structure and a truss structure arranged on the main body structure. As shown in fig. 2, main part steel frame structure includes the elevator well and sets up the supplementary frame structure of steel construction outside the well, and this supplementary steel frame structure is H shaped steel including establishing the steel column in the well outside and the plane frame structure who links together many steel columns and form, and the main part structure is H shaped steel, is equipped with the steel frame support on the well all around, and the steel column is H shaped steel. The secondary structure-truss structure comprises a horizontal support, a profiled steel sheet and concrete combined floor, a metal roof board roof and a lighting glass roof.

As shown in fig. 3, the platform plate at the mountain top comprises a profiled steel sheet, a concrete combined floor and a steel beam, the connecting end of the steel beam and the mountain body is rigidly connected, and the connecting end of the steel beam and the steel column is rigidly connected.

The building structure is characterized by small plane occupied area and very high height, belongs to a high-rise structure with a serious over-limit height-thickness ratio, and is characterized in that the vertical load ratio is small from the analysis of load conditions, the influence of horizontal wind load and earthquake action on the structure is large, especially the influence of wind high-pressure change coefficient is considered, the wind load presents the characteristics of small size and large size, the control load is the horizontal wind load, the horizontal displacement under the action of the horizontal wind load is a deformation factor mainly controlled, and the structural form is suggested to adopt a steel frame structure with horizontal support through careful analysis and preliminary calculation.

The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims

1. The utility model provides an overlimit aspect ratio steel construction bbservation elevator, its characterized in that, this structure includes major structure and sets up the space truss structure on major structure, major structure include elevator well (1) and set up at well (1) outside steel construction auxiliary frame structure (2), this auxiliary steel frame structure (2) are including establishing steel column (3) in the well outside and girder steel (4) that link together many steel columns, the whole plane frame structure of formation, major structure be H shaped steel. The secondary structure (5) comprises a horizontal support upper chord member and a horizontal support lower chord member (6) which are arranged on the main body structure, a web member (7) and a platform plate (8) which is arranged on the main body structure, and is rigidly connected with a rock body (9).

2. The elevator with ultra-high steel structure according to claim 1, wherein the steel columns and beams are H-shaped steel.

3. The elevator as claimed in claim 2, wherein the horizontal support truss structure is a round steel tube.

4. The elevator with steel structure of claim 3, wherein the horizontal supporting truss structure is cast in place with the rock mass (9) through steel plates and concrete, and rock bolts are arranged in the horizontal supporting truss structure and deeply penetrate into the rock mass.

5. The elevator as claimed in claim 4, wherein the horizontal support truss structure is connected to the main steel frame structure by pins in the fixed hinge supports at the beam-column joints.

6. The elevator as claimed in claim 5, wherein the horizontal support truss structure (underground portion) and the reinforced concrete wall cylinder are rigidly connected together.