CN111648494A - Assembled both sides connection steel grid shear force wall convenient to replacement - Google Patents
Assembled both sides connection steel grid shear force wall convenient to replacement Download PDFInfo
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- CN111648494A CN111648494A CN202010542645.3A CN202010542645A CN111648494A CN 111648494 A CN111648494 A CN 111648494A CN 202010542645 A CN202010542645 A CN 202010542645A CN 111648494 A CN111648494 A CN 111648494A
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- steel
- frame
- shear wall
- shaped steel
- steel grid
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
Abstract
The invention discloses an assembled steel grid shear wall with two connected sides, which is convenient to replace and comprises a steel grid shear wall body arranged between a frame column and a frame beam, wherein the steel grid shear wall body is provided with a rectangular frame and a steel grid structure connected with the rectangular frame, the top and the bottom of the rectangular frame are respectively connected with the corresponding frame beam, two sides of the rectangular frame are arranged at intervals with the corresponding frame column, and a hole is arranged between the frame column arranged at intervals and the side of the rectangular frame. The invention can avoid the adverse effect of the tensile field of the four-side connecting steel plate shear wall on the frame column and meet the requirement of door and window opening arrangement in the residential building; the factory prefabrication can be completely realized, the spot bolt connection is adopted, and the problems of large spot welding workload, large welding deformation and the like of the stiffened steel plate shear wall are solved; the weight of the component is reduced, and the transportation and installation are convenient, so that the construction progress is accelerated, and the repair period is shortened.
Description
Technical Field
The invention belongs to the technical field of constructional engineering, relates to a steel grid shear wall, and particularly relates to an assembled steel grid shear wall with two sides connected, wherein the assembled steel grid shear wall is convenient to replace.
Background
The problems that the residential building industry in China has insufficient total quantity in the past and insufficient structural supply, the steel production capacity in the building industry is excessive, the building mode is lack of intensification, the environmental pollution is serious and the like are urgently solved, and the development of the steel structure assembly type building becomes an urgent need for promoting the energy conservation of the building, and promoting the transformation of the building mode and the high-quality development of urban and rural construction. With the continuous development of novel urbanization construction in China, residential buildings are the main market demand of assembly type buildings, in the structural design of high-rise residential buildings, horizontal load is a decisive factor, a lateral force resisting system is the key for bearing the horizontal load of the high-rise residential building structure, and the lateral force resisting performance and the damage degree of the structure under the action of an earthquake are directly determined, so that the research and development of the efficient lateral force resisting structure suitable for the assembly type buildings are of great significance.
The traditional lateral force resisting structure such as a steel frame structure, a steel frame-supporting structure, a steel frame-concrete core tube structure and the like improves the construction industrialization level to a certain extent, but along with the development of residential buildings, the height and the number of layers of the residential buildings are gradually increased, the increased horizontal load causes the bearing requirement of the structure to be improved, the connection structure of the steel support and a beam column node is relatively complex, the cross sections of components such as a steel beam, a steel column and the steel support are generally large, the using effect of the building is influenced, and often due to the requirement of building functions, the sufficient number of supports are difficult to be longitudinally arranged, and the rigidity difference of the two directions of the structure is large. The steel frame-concrete core tube structure occupies the building area due to the wall thickness, and the advantage of high construction speed of the steel structure is not easily brought into full play during the cast-in-place construction of the concrete wall.
The steel plate shear wall is a novel lateral force resisting component, has higher bearing capacity and initial rigidity, can continue to bear horizontal load after the steel plate is bent, has better ductility and energy consumption capability, has light dead weight, small wall thickness, high component prefabrication degree and high construction speed, and can overcome the defects of the traditional lateral force resisting structure when being used for an assembled steel structure house. The steel plate shear wall commonly used in the engineering at present mainly has the forms of non-stiffening and stiffening steel plate walls, slotted steel plate walls, buckling-restrained and combined steel plate walls and the like.
However, the existing steel plate shear wall structure has a part to be perfected in the construction process, is inconvenient to repair and replace in the use process, and has certain defects in mechanical property. For example, the sheet steel shear wall is easy to deform during transportation and installation due to weak external rigidity, and the phenomenon of pinching of a hysteresis curve is serious under the action of horizontal repeated load; the stiffened steel plate shear wall improves the buckling strength of the thin steel plate and reduces the out-of-plane deformation of the steel plate after buckling, but the welding workload of the stiffening ribs is large, and the problem of welding deformation of the steel plate cannot be ignored; the buckling-restrained and combined steel plate shear wall is relatively complex in structure. Meanwhile, in the existing steel plate shear wall structure, four sides of a steel plate are connected, so that a frame column generates large additional axial force and bending moment, the section of the steel frame column is designed to be overlarge, the influence on the frame column is reduced by adopting a hole opening or slotting mode, the processing and manufacturing difficulty and the installation difficulty can be improved, and the horizontal bearing capacity is weakened to some extent.
In structural stress calculation, a plate shell model of a traditional steel plate shear wall is a typical two-dimensional plate unit nonlinear problem, and the calculation difficulty is high, so that students propose several types of simplified calculation models, and researches show that when the width-to-height ratio of an embedded steel plate is constant, the bearing capacity and the initial rigidity of all the simplified models approach to accurate values along with the increase of the height-to-thickness ratio, but the calculation error of the initial rigidity is large when the height-to-thickness ratio is small.
China is between two major earthquake zones in the world, earthquake disasters frequently occur in recent years, and serious casualties and economic losses are caused by the damage and even collapse of a large number of house buildings. For repairable damaged buildings, the existing repair measures usually need a large amount of field cutting and welding operation, the reinforcement effect depends on the field construction quality to a great extent, and the problems of difficult transportation, high construction difficulty and the like of repaired parts in the buildings exist, so the later repair period and the repair cost of the damaged buildings are increased. The lateral force resisting system is used as a main anti-seismic component, is an important object of seismic damage repair work, is an anti-lateral force resisting structure which is excellent in anti-seismic performance and convenient for seismic damage repair aiming at the problems of the existing lateral force resisting system, and is an effective measure for reducing the direct loss of seismic disasters and the economic loss in post-disaster repair and guaranteeing the safety of lives and properties of people.
Disclosure of Invention
The invention provides an assembled steel grid shear wall with two sides connected, which is convenient to replace and solves the technical problems in the prior art, the shear wall structure fully considers the rationality of frame column design and the harmony of building design, avoids the adverse effect of a tensile field of the shear wall with four sides connected with steel plates on the frame column, meets the requirement of door and window hole arrangement in residential buildings, and has high assembly rate and convenient replacement.
The technical scheme adopted by the invention for solving the technical problems in the prior art is as follows: the utility model provides an assembled both sides connection steel mesh shear force wall convenient to replacement, is including setting up the steel mesh shear force wall body between frame post and frame roof beam, steel mesh shear force wall body be equipped with the rectangle frame and with the steel mesh structure that the rectangle frame is connected, the top and the bottom of rectangle frame respectively with correspond the frame roof beam is connected, the both sides of rectangle frame with correspond the frame post interval sets up, and sets up at the interval the frame post with be equipped with the entrance to a cave between the avris of rectangle frame.
Rectangular frame adopts I concatenation of T shape steel component to form, the flange board of T shape steel component I is located the outside, with correspond the frame roof beam passes through I connections of high strength bolt, the web of T shape steel component I is located the thickness central plane of shear force wall to as the fishplate with steel grid structure connects.
The steel grid structure is composed of T-shaped steel components II which are arranged in a bidirectional separation mode, the T-shaped steel components II in two directions are all obliquely arranged according to a mixed rod system model, flanges are arranged in a back-to-back crossing mode, and flange plates of the T-shaped steel components II are connected with webs of the T-shaped steel components I through high-strength bolts II.
The steel grid structure is composed of two-way separately arranged channel steel, the two-way channel steel is obliquely arranged according to the mixed rod system model, the webs are arranged in a back-to-back intersecting mode, and the webs of the channel steel are connected with the webs of the T-shaped steel members I through high-strength bolts II.
The upper end and the lower end of a T-shaped steel component I of the rectangular frame side frame are respectively provided with a web notch, the web notch is in butt joint with two T-shaped steel components I which are vertically adjacent, connecting angle steel is arranged on two sides of a web at the butt joint and is connected with the webs of the two T-shaped steel components I which are vertically adjacent through high-strength bolts III.
The frame beam is made of H-shaped steel, and a plurality of rib plates arranged in pairs are arranged on two sides of a web plate of the frame beam.
The frame column is a steel member or a steel pipe concrete member.
The invention has the advantages and positive effects that: 1) the steel grid shear wall is separated from the frame column, and the anchoring area of the tension field is transferred to the frame beam, so that the anti-seismic design concept of 'strong column and weak beam' is realized, the arrangement of door and window openings is facilitated, and the coordination with the building design is realized; 2) the embedded steel plate is dispersed into the steel members which are separated in two directions based on the mixed rod system model theory, the calculation analysis process of the structure is simplified, the whole design is convenient to be converted into the analysis of local members, and therefore the design method which is convenient for engineering application is provided. The discretization component is light in weight, convenient to transport and install and capable of effectively accelerating the construction speed. 3) The grid type arrangement is favorable for reducing the vertical rigidity, so that the influence of the load on the beam on the lateral force resistance of the structure is reduced, the problem that the buckling critical load is reduced due to the fact that the whole steel plate is easy to deform initially under the action of the vertical load is solved, and the component can be installed together with the main body structure to accelerate the construction speed. 4) All components can be prefabricated in a factory, bolted connection is adopted on the site, all components are convenient to transport and install, the structural assembly degree is high, construction is safe and environment-friendly, and the method conforms to the national major trend of developing assembly type buildings. 5) Because the main atress component of structure all adopts bolted connection, be convenient for change the component that damages in the later stage use, realize the easy repairability of damaging the component, reduce the repair cycle and the expense of structure.
Drawings
FIG. 1 is an elevational view of the present invention;
FIG. 2 is an enlarged view of section I of FIG. 1;
FIG. 3 is an enlarged view of section II of FIG. 1;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 5 is a sectional view taken along line B-B of fig. 1.
In the figure: 1. a frame column; 2. a frame beam; 2-1, rib plates; 3-1, rectangular frame; 3-2, steel grid structure; 3-3, connecting angle steel; 4. a hole; 5-1, high-strength bolt I; 5-2, high-strength bolts II; 5-3, high-strength bolt III.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1 to 5, an assembled two-side-connected steel grid shear wall convenient to replace includes a steel grid shear wall body disposed between a frame column 1 and a frame beam 2, the steel grid shear wall body is provided with a rectangular frame 3-1 and a steel grid structure 3-2 connected with the rectangular frame 3-1, the top and the bottom of the rectangular frame 3-1 are respectively connected with the corresponding frame beam 2, two sides of the rectangular frame 3-1 are disposed at intervals with the corresponding frame column 1, and a hole 4 is disposed between the frame column 1 and the side of the rectangular frame 3-1 at intervals for mounting components such as doors and windows.
In this embodiment, the rectangular frame 3-1 is formed by splicing T-shaped steel members i, flange plates of the T-shaped steel members i are located on the outer side and connected with the corresponding frame beams 2 through high-strength bolts i 5-1, and webs of the T-shaped steel members i are located on the thickness center plane of the shear wall and connected with the steel grid structure 3-2 as fishplates. Furthermore, the steel grid structure 3-2 is composed of T-shaped steel components II which are arranged in a bidirectional separation mode, the two-way T-shaped steel components II are arranged obliquely according to a mixed rod system model, flanges are arranged in a back-to-back crossing mode, and flange plates of the T-shaped steel components II are connected with webs of the T-shaped steel components I through high-strength bolts II 5-2. The T-shaped steel member II in the steel grid structure 3-2 can be replaced by channel steel, at the moment, the steel grid structure 3-2 is formed by the channel steel which is arranged in a bidirectional separation mode, the channel steel in two directions is obliquely arranged according to the mixed rod system model, the webs are arranged in a back-to-back intersecting mode, and the webs of the channel steel are connected with the webs of the T-shaped steel member I through high-strength bolts II 5-2.
In this embodiment, web notches are formed in the upper end and the lower end of each T-shaped steel component I forming the side frame of the rectangular frame 3-1, two T-shaped steel components I vertically adjacent to each other at the web notches are in butt joint, connecting angle steels 3-3 are arranged on two sides of a web at the butt joint respectively, and the two connecting angle steels 3-3 are connected with webs of two T-shaped steel components I vertically adjacent to each other through high-strength bolts III 5-3. The invention is not limited to the connection structure of the rectangular frame 3-1, as described above, web notches may be provided at the left and right ends of the T-shaped steel member i forming the top frame and the bottom frame of the rectangular frame 3-1, and then the connection may be performed by using a structure similar to the above.
In this embodiment, the frame beam 2 is made of H-shaped steel, and a plurality of rib plates 2-1 arranged in pairs are arranged on two sides of a web of the frame beam 2 to enhance the performance of the frame beam 2. The frame column 1 may be a steel member or a concrete filled steel tube member.
The following is a detailed description of the shear wall structure:
the shear wall comprises a steel grid shear wall body connected with the frame beam and separated from the frame column, a hole is formed between the side edge of the steel grid shear wall body and the frame column 1, and the size of the hole can be adjusted according to the actual door and window size of a building. The shear wall is connected with the frame beam 2 only and adopts full bolt connection.
The steel grid shear wall body is provided with an external rectangular frame 3-1 and an internal steel grid structure 3-2, the internal steel grid structure 3-2 is formed by discretizing an embedded steel plate according to the basic principle of an existing steel plate shear wall mixed rod system model and composed of T-shaped steel members II which are arranged in a bidirectional separation mode, the rectangular frame 3-1 is formed by splicing the T-shaped steel members I, and the T-shaped steel members II are connected with the T-shaped steel members I through high-strength bolts II 5-2. The T-shaped steel component I at the top of the rectangular frame 3-1 is arranged on the lower side of the upper frame beam, the T-shaped steel component I at the bottom of the rectangular frame 3-1 is arranged on the upper side of the lower frame beam, the flange of the T-shaped steel component I is connected with the flange of the frame beam 2 through a high-strength bolt I5-1, the T-shaped steel component I at the side of the rectangular frame 3-1 provides side restraint for a steel grid shear wall body, the flange is used as a side stiffening rib, the web is used as a fishplate, one section is cut at each of the upper end and the lower end of the fishplate, the outer extension part at the end part of the flange is in contact with the end face of the T-shaped steel component I at the top or the bottom of the rectangular frame 3-1, two vertically adjacent T-shaped steel components I at the notch of the web are in butt joint, connecting.
When the steel grid structure 3-2 is formed by the T-shaped steel component II, a web plate of the T-shaped steel component II forming the steel grid structure 3-2 is used as a stiffening rib of the steel grid shear wall. When the steel grid structure 3-2 is formed by channel steel, two flanges of the channel steel are used as stiffening ribs of the steel grid shear wall.
The shear wall is separated from the frame column, steel plates are dispersed into profile steel members, and all the members are connected through bolts by certain measures. In the aspect of stress performance, a steel member arranged based on the principle of a hybrid rod system model can be equivalent to a tensile field, a web plate of the steel member can be equivalent to a stiffening rib, and the arrangement mode of connecting the two sides avoids adverse effects on the frame column; in the aspect of structural design, the discretized rod piece reduces the difficulty of calculation and analysis of the structure, and is beneficial to converting the overall design into the local component design; in the aspect of construction, the components can be prefabricated in advance, the transportation and the installation are convenient, and the construction is rapid and environment-friendly; in the aspect of the use function, the arrangement mode that both sides are connected is convenient for architectural design, and full bolted connection is convenient for impaired component and is changed, is favorable to shortening later stage repair time, reduces the repair cost.
In conclusion, the invention provides the assembled two-side-connected steel grid shear wall convenient to replace, which aims at the problems that the existing steel plate shear wall structure is inconvenient to repair and replace in the construction process, has certain defects in mechanical property and the like, fully considers the rationality of frame column design and the harmony of building design, avoids the adverse effect of the tensile field of the four-side-connected steel plate shear wall on the frame column, and meets the requirements of door and window hole arrangement in a residential building; the shear wall member can be completely prefabricated in factories by applying finished section steel, and is connected by bolts on site, so that the problems of large welding workload, large welding deformation and the like of the stiffened steel plate shear wall on site are solved; through the component discretization, the structure calculation process is simplified, the weight of the component is reduced, and the transportation and installation are facilitated, so that the construction progress is effectively accelerated, the repair period is shortened, and the technical effect that the construction can be assembled and used for easy repair is achieved.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (7)
1. The utility model provides an assembled both sides connection steel mesh shear force wall convenient to replacement, is including setting up the steel mesh shear force wall body between frame post and frame roof beam, its characterized in that, steel mesh shear force wall body be equipped with the rectangle frame and with the steel mesh structure that the rectangle frame is connected, the top and the bottom of rectangle frame respectively with correspond the frame roof beam is connected, the both sides of rectangle frame with correspond the frame post interval sets up, and sets up at the interval the frame post with be equipped with the entrance to a cave between the avris of rectangle frame.
2. The easy-to-replace assembly type two-side connection steel grid shear wall according to claim 1, wherein the rectangular frame is formed by splicing T-shaped steel members I, flange plates of the T-shaped steel members I are located on the outer side and connected with the corresponding frame beams through high-strength bolts I, and web plates of the T-shaped steel members I are located on the thickness center plane of the shear wall and are connected with the steel grid structure as fishplates.
3. The easy-to-replace assembly type two-side-connected steel grid shear wall as claimed in claim 2, wherein the steel grid structure is formed by two-way separately arranged T-shaped steel members II, the two-way T-shaped steel members II are arranged obliquely according to a mixed rod system model, flanges are arranged in a back-to-back crossing manner, and flange plates of the T-shaped steel members II are connected with webs of the T-shaped steel members I through high-strength bolts II.
4. The easy-to-replace fabricated two-side-connected steel grid shear wall according to claim 2, wherein the steel grid structure is formed by two-way separately arranged channel steel, the two-way channel steel is obliquely arranged according to a mixed rod system model, the webs are arranged in a back-to-back intersecting manner, and the web of the channel steel is connected with the web of the T-shaped steel member I through a high-strength bolt II.
5. The easy-to-replace assembly type two-side-connected steel grid shear wall as claimed in claim 2, wherein web notches are formed in the upper and lower ends of the T-shaped steel members I forming the side frames of the rectangular frame, two vertically adjacent T-shaped steel members I are in butt joint at the web notches, connecting angle steels are arranged on two sides of the web at the butt joint respectively, and the two connecting angle steels are connected with the webs of the two vertically adjacent T-shaped steel members I through high-strength bolts III.
6. The easy-to-replace fabricated two-side-connected steel grid shear wall of claim 1, wherein the frame beams are made of H-shaped steel, and a plurality of ribs arranged in pairs are arranged on two sides of the web plate of the frame beams.
7. An assembled two-sided connection steel grid shear wall of claim 1, wherein the frame columns are steel members or concrete filled steel members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010542645.3A CN111648494A (en) | 2020-06-15 | 2020-06-15 | Assembled both sides connection steel grid shear force wall convenient to replacement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010542645.3A CN111648494A (en) | 2020-06-15 | 2020-06-15 | Assembled both sides connection steel grid shear force wall convenient to replacement |
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| CN111648494A true CN111648494A (en) | 2020-09-11 |
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| CN202010542645.3A Pending CN111648494A (en) | 2020-06-15 | 2020-06-15 | Assembled both sides connection steel grid shear force wall convenient to replacement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112609823A (en) * | 2020-12-03 | 2021-04-06 | 长安大学 | Steel frame structure internally filled with energy-consuming truss and installation method thereof |
-
2020
- 2020-06-15 CN CN202010542645.3A patent/CN111648494A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112609823A (en) * | 2020-12-03 | 2021-04-06 | 长安大学 | Steel frame structure internally filled with energy-consuming truss and installation method thereof |
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