CN104389361A - Damping filling wallboard for frame structure - Google Patents

Abstract

The invention discloses a shock-absorbing filling wallboard for a frame structure, which comprises a masonry built in the space surrounded by frame beams and frame columns, 1/4 of the clear height and 3/4 of the clear height from the bottom of the masonry. A layer of compressible horizontal XPS boards is installed horizontally on the high place, and the two layers of horizontal XPS boards divide the masonry into three parts: the upper masonry, the middle masonry, and the lower masonry. The upper masonry and the lower masonry are close to the same One side of the frame column and a layer of vertical XPS boards are vertically arranged between the frame column, the other side of the upper masonry and the lower masonry are fixed to the other frame column by connecting steel bars, and the middle masonry The same side with the vertical XPS boards on the upper masonry and the lower masonry is connected to the frame column by connecting steel bars, and a layer of vertical XPS boards is vertically arranged on the other side of the middle masonry. The invention not only has the practicability of ordinary filling walls, but also can effectively reduce the stiffness of the filling walls during earthquakes, weaken the earthquake effect, and play the role of shock absorption.

Description

A shock-absorbing infill wall panel for frame structures

technical field

The invention relates to infill walls for building structures, in particular to a shock-absorbing infill wall panel for frame structures.

Background technique

Frame structure is widely used in residential buildings, school teaching buildings, shopping malls and other buildings where people live, study and work, because this structural form can meet the needs of large space in architectural modeling and flexible layout in terms of use functions requirements. The frame structure uses frame beams and frame columns as the force-bearing members, and the usable space of the building is open. The filling wall built between the frame beam and the frame column has the functions of enclosure outside the building and separating space inside the building. Under the earthquake, on the one hand, due to the high stiffness of the infill wall, the infill wall is subjected to a large earthquake, and the wall is seriously damaged; The calculation model with frame beams and frame columns as the force-bearing members has a large stiffness, and the earthquake action borne by the entire structure will also increase.

At present, many scholars have proposed some improved infill walls, or strengthen the integrity and strength of the structure to resist the earthquake, or weaken the stiffness of the infill wall and increase the damping of the structure to play the role of shock absorption and energy consumption. However, in order to weaken the stiffness of the infill wall or increase the damping of the structure, a large modification of the infill wall commonly used today has enhanced the safety of the infill wall, but weakened the practicability of the infill wall. For example, if the infill wall and the frame beam at the bottom of the wall are connected with weakened stiffness or increased damping, but not tightly connected, water seepage and other problems will occur in this place during normal use of the building, especially in kitchens and bathrooms. , bathroom etc. In addition, if the improved infill wall has a large change compared with the currently widely used infill wall, and its structure and operation are complicated, its ease of use will be weakened, and it cannot replace the ordinary infill wall currently used for promotion.

Contents of the invention

In order to solve the problem that the structure is subjected to excessive earthquake action and the wall is seriously damaged due to the high rigidity of the ordinary infill wall of the frame structure, the present invention provides a shock-absorbing infill wallboard. There is not much difference between the walls, but under the action of earthquakes, especially under the action of large earthquakes, it can effectively reduce the stiffness of the filling wall, weaken the earthquake action, and play the role of shock absorption.

The technical solution adopted by the present invention to solve its technical problems is:

A shock-absorbing infill wall panel for frame structures, including masonry built in the space enclosed by frame beams and frame columns, and 1/4 of the clear height and 3/4 of the clear height from the bottom of the masonry are respectively horizontal A layer of compressible horizontal XPS slabs is set up, and two layers of horizontal XPS slabs divide the masonry into three parts: the upper masonry, the middle masonry, and the lower masonry. The upper masonry and the lower masonry are close to the same frame column A layer of vertical XPS boards is vertically arranged between the side and the frame column, and the other side of the upper masonry and the lower masonry are connected to the other frame column by horizontally arranged connecting steel bars, and the middle masonry and The same side of the upper masonry and the lower masonry with vertical XPS boards are connected to the frame column by horizontally arranged connecting steel bars, and a layer of vertical XPS boards is vertically arranged on the other side of the middle masonry.

Further, the vertical XPS board and the horizontal XPS board are polystyrene foam boards with a thickness of 10 mm to 20 mm, and the XPS board is polystyrene foam board, which is a commonly used thermal insulation material for building exterior walls, with low price and low weight. Easy to process, the width is equal to the thickness of the masonry, and the thickness of the masonry can be selected from 120mm, 180mm, 240mm and 360mm, etc., which meet the masonry modulus. The length of the horizontal XPS slab is the net distance between the frame columns, and the height of the vertical XPS slab is equal to the height of the adjacent parts of the masonry.

Further, an adhesive layer is also provided between the vertical XPS boards and horizontal XPS boards and the masonry and frame columns to ensure that each XPS board is always in close contact with the masonry and frame columns, preventing leakage and seepage. .

Further, the strength of the blocks used in the masonry is greater than or equal to MU10, and the weight is less than or equal to 10kN/m ³ , and the wall is made of high-strength lightweight masonry material, which not only meets the strength requirements of the wall, but also reduces the horizontal XPS The compression deformation of the slab ensures the seismic capacity of the wall, and the corresponding design, construction quality and acceptance specifications must be met during construction.

Further, the part of the masonry above the inner platform is built with M5 cement-mixed mortar, and the part below the inner platform is built with M10 cement-mixed mortar, and the drying shrinkage of the masonry is less than or equal to 0.4mm/m.

Further, the connecting steel bar adopts 2 8 steel bars, and pre-buried at intervals of 500mm along the height of the frame column, the connecting steel bars are anchored into the frame column by 150-300mm, and outstretched and embedded in the masonry by 1000-1500mm.

Further, the top of the upper masonry is 150-240mm away from the bottom of the frame beam, and inclined blocks for wedging are arranged, and the inclined angle of the inclined blocks is 30-80° to maintain the tightness of the masonry.

Further, when the horizontal length of the masonry is greater than 5m, a structural column is added in the middle of the masonry to improve the strength of the masonry when the span of the frame column is large.

Compared with the prior art, the shock-absorbing filling wallboard provided by the present invention has the following advantages:

1. The shock-absorbing infill wall has two layers of horizontal XPS boards added to the commonly used ordinary infill wall, and the masonry is divided into three parts. One end of each part of the masonry is flexibly connected to the column with pasted XPS boards, and the other end is fixed to the column with steel bars, and the three parts of the masonry are arranged in a staggered manner.

2. The shock-absorbing infill wall is only equipped with five more XPS boards than the ordinary infill wall, which is simple in structure and easy to manufacture.

3. In the normal use stage, the durability and practicability of the infill wall will not be affected. The horizontal load on the vertically installed XPS board is very small, and the XPS is hardly deformed. The horizontally installed XPS slab bears the self-weight load transmitted from the upper filling wall, and the load is 25kPa~40kPa. Under this load, the compression amount of the XPS board with a thickness of 10mm~20mm is 0.1mm~0.2mm after one day, and the compression amount of the XPS board is basically unchanged after that, and will not produce large creep over time. Therefore, when the masonry of the shock-absorbing infill wall panels is completed, the compression deformation of the XPS panels installed horizontally under the action of the self-weight of the infill walls has been completed, and the compression amount is only 0.1mm~0.2mm. As time goes by, the shock-absorbing infill wallboard will basically not appear cracks due to the compression deformation of the XPS board, and even if it does, it will be smaller than the minimum crack width specified in the code. The bottom of the shock-absorbing filling wall is in close contact with the frame beam to achieve waterproof and anti-seepage effects. Therefore, in the normal use stage, compared with the ordinary infill wall, the vibration-absorbing infill wall has almost the same use effect, and the practicability is not weakened.

4. During the earthquake, the masonry is divided into three parts due to the shock-absorbing infill wallboard, and the XPS board is installed, its stiffness is significantly reduced, the earthquake effect is reduced, and the damage of the infill wallboard is also weakened. The XPS board will quickly produce a large amount of compression with the increase of the load. For example, under the load of 400kPa, the compression amount of the 20mm thick XPS board can reach 14mm in a short time. Therefore, under the action of earthquakes, especially under the action of large earthquakes, the XPS panels arranged horizontally and vertically are compressed rapidly, providing greater deformation capacity. At this time, the XPS board inside the shock-absorbing infill wallboard is compressed, and one side of the three parts of the masonry is flexibly connected to the column with the XPS board, which leads to a reduction in the stiffness contribution of the shock-absorbing infill wallboard to the frame structure, and weakens the restraint effect of the structure. The seismic action received will also be reduced to achieve the purpose of shock absorption. Therefore, the shock-absorbing filling wallboard maintains the practicability of the common filling wallboard during the normal use stage, and has the shock-absorbing effect that the common filling wallboard does not have when an earthquake occurs.

Description of drawings

Fig. 1 is a structural schematic diagram of a shock-absorbing filling wallboard used in a frame structure according to the present invention.

In the figure: 1-upper frame beam; 2-lower frame beam; 3-left frame column; 4-right frame column; 5-connecting steel bars; 6-masonry; 61-upper masonry; 62-middle masonry; 63 - lower masonry; 7 - vertical XPS board; 8 - horizontal XPS board; 9 - oblique block.

Detailed ways

The purpose of the invention of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, and the embodiments cannot be repeated here one by one, but the implementation of the present invention is not therefore limited to the following embodiments.

As shown in Figure 1, a kind of shock-absorbing infill wallboard for frame structure comprises masonry 6 built in the space surrounded by frame beams and frame columns, and the frame beams include an upper frame beam 1, a lower frame Beam 2, the frame column includes left frame column 3 and right frame column 4, their size and reinforcement are determined according to the results of structural calculations, and the storey height between the upper frame beam 1 and the lower frame beam 2 is determined according to building requirements, The floor height is generally 3m~5m, and the span between the left frame column 3 and the right frame column 4 is determined according to the layout requirements. A layer of compressible horizontal XPS board 8 is arranged horizontally at 1/4 clear height and 3/4 clear height from the bottom of masonry 6, and two layers of horizontal XPS boards 8 divide masonry 6 into upper masonry 61, middle The masonry 62 and the lower masonry 63 are three parts. The upper masonry 61 and the lower masonry 63 are each vertically provided with a layer of vertical XPS boards 7 between the side of the same frame column and the frame column. The upper masonry The other side of the body 61 and the lower masonry 63 are connected to another frame column by using horizontally arranged connecting steel bars 5 , and the middle masonry 62 and the upper masonry 61 and the lower masonry 63 are provided with vertical XPS panels 7 The same side is fixedly connected to the frame column by connecting steel bars 5 arranged horizontally, and a layer of vertical XPS boards 7 is vertically arranged on the other side of the middle masonry 62, and the connecting steel bars 5 are made of 2 8 steel bars, and pre-buried at intervals of 500mm along the frame column height, the connecting steel bar 5 is anchored into the frame column by 150-300mm, and is embedded in the masonry 6 by 1000-1500mm.

The vertical XPS board 7 and the horizontal XPS board 8 are polystyrene foam boards with a thickness of 10 mm to 20 mm. The XPS board is a polystyrene foam board, which is a commonly used thermal insulation material for building exterior walls. It is cheap and light in weight. Processing, the width is equal to the thickness of the masonry, and the thickness of the masonry can be selected from 120mm, 180mm, 240mm and 360mm, which meet the masonry modulus. The length of the horizontal XPS slab is the net distance between the frame columns, and the height of the vertical XPS slab is equal to the height of the adjacent parts of the masonry.

An adhesive layer is also arranged between the vertical XPS board 7 and the horizontal XPS board 8 and the masonry 6 and the frame column to ensure that each XPS board is always in close contact with the masonry 6 and the frame column, and is leak-proof and anti-corrosion. Seep.

The strength of the blocks used in the masonry 6 is greater than or equal to MU10, and the weight is less than or equal to 10kN/m ³ . The wall is made of high-strength lightweight masonry material, which not only meets the strength requirements of the wall, but also reduces the weight of the horizontal XPS board. The amount of compression deformation ensures the seismic capacity of the wall, and the corresponding design, construction quality and acceptance specifications must be met during construction.

The part of the masonry 6 above the inner platform is built with M5 cement-mixed mortar, and the part below the inner platform is built with M10 cement-mixed mortar, and the drying shrinkage of the masonry is less than or equal to 0.4mm/m.

The top of the upper masonry 61 is 150-240mm away from the bottom of the frame beam, and an oblique block 9 for wedging is arranged, and the inclination angle of the oblique block 9 is 30°-80° to maintain the tightness of the masonry 6 .

When the horizontal length of the masonry 6 is greater than 5m, a structural column is added in the middle of the masonry 6 to improve the strength of the masonry 6 when the span of the frame column is large.

Construction process of the present invention is roughly as follows:

Before the lower masonry 63 of the masonry 6 is built, a vertical XPS board 7 is vertically pasted on the inner surface of the left frame column 3 with construction glue, the thickness of the XPS board is 10mm~20mm, and the width is the thickness of the masonry 6 , the height is 1/4 of the net height of the whole masonry 6, and then the other side of the vertical XPS board 7 is also coated with construction glue, and then the lower masonry 63 is built, and the lower masonry 63 is pasted with vertical XPS One side of the board 7 (that is, the left side of the lower masonry 63 ) starts to be built. During the masonry, attention should be paid to make the lower masonry 63 closely contact with the vertical XPS board 7 . And on the other side (i.e. the right side of the lower masonry 63) that does not contact the XPS board 7 in the lower masonry 63, use 2 between the lower masonry 63 and the right frame column 4 8 steel bar connection, the steel bar is pre-embedded every 500mm along the frame column height, anchored into the column by 200mm, and embedded in the filled wall by 1000mm.

After laying the lower masonry 63 (the height is 1/4 of the net height of the entire masonry 6), apply a layer of construction glue on the upper surface of the lower masonry 63, and glue a layer of horizontal XPS board 8 horizontally, with a thickness of 10mm~20mm , the width is the thickness of the masonry 6, the length is the clear span between the left frame column 3 and the right frame column 4, and then a layer of construction glue is applied on the upper surface of the horizontal XPS board 8, and then on the inner surface of the right frame column 4 with A vertical XPS board 7 is pasted vertically with construction glue, the thickness of the vertical XPS board 7 is 10mm~20mm, the width is the thickness of the masonry 6, and the height is 1/2 of the net height of the masonry 6, and then the vertical XPS board After the other side of 7 is also coated with construction glue, start to build the middle part of the masonry 62. The middle part of the masonry 62 starts to build from the side where the vertical XPS board 7 is pasted (that is, the right side of the middle part of the masonry 62). Take care to make the middle masonry 62 in close contact with the vertical XPS panel 7 . And on the other side (that is, the left side of the middle masonry 62) that does not contact the vertical XPS board 7 in the middle masonry 62, between the middle masonry 62 and the left frame column 3, use 2 8 steel bar connection, the steel bar is pre-embedded every 500mm along the frame column height, anchored into the column by 200mm, and embedded in the filled wall by 1000mm.

After laying the middle masonry 62 (the height is 1/2 of the clear height of the masonry 6), apply a layer of construction glue on the upper surface of the middle masonry 62, and stick a layer of horizontal XPS board 8 horizontally, with a thickness of 10mm~20mm, The width is the thickness of the masonry 6, the length is the clear span between the left frame column 3 and the right frame column 4, and a layer of construction glue is applied on the upper surface of the horizontal XPS board 8, and then the inner surface of the left frame column 3 is covered with construction glue. Glue vertically pastes a vertical XPS board 7, the thickness of the vertical XPS board 7 is 10 mm ~ 20 mm, the width is the thickness of the masonry 6, and the height is 1/4 of the clear height of the masonry 6, and then the vertical XPS board 7 The other side of the upper side is also coated with construction glue, and then start to build the upper masonry 61. The upper masonry 61 starts to be built from the side where the vertical XPS board 7 is pasted (that is, the left side of the upper masonry 61). Pay attention when building The upper masonry 61 is brought into close contact with the vertical XPS panel 7 . And on the other side (that is, the right side of the upper masonry 61) that does not contact the vertical XPS board 7 in the upper masonry 61, between the masonry 6 and the right frame column 4, use 2 8 steel bar connection, the steel bar is pre-embedded every 500mm along the column height of the frame, anchored into the column by 200mm, and embedded in the filled wall by 1000mm. When the distance from the bottom of the upper frame beam 1 is 200mm, the inclined block 9 is wedged tightly, and the inclination angle is 30°~80°, so that the entire shock-absorbing filling wall panel can be completed, forming a three-layer masonry staggered layout. Construction, of course, the connection between the three-part masonry and the frame column can also be arranged in the opposite direction of the above-mentioned embodiment as a whole.

The above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (8)

1. the damping filled-in panel for frame construction, be included in the masonry (6) of building by laying bricks or stones in space that Vierendeel girder and frame column surround, it is characterized in that: apart from masonry (6) 1/4 clear height place, bottom and 3/4 clear height place, the compressible horizontal X PS plate (8) of one deck is flatly set respectively, masonry (6) is divided into top masonry (61) by two-layer horizontal X PS plate (8), middle part masonry (62), lower block body (63) three part, described top masonry (61) and lower block body (63) vertically arrange the vertical XPS plate of one deck (7) near each between the side and frame column of same frame column, described top masonry (61) and lower block body (63) opposite side all utilize horizontally disposed connecting reinforcement (5) and another frame column affixed, the same side that described middle part masonry (62) and top masonry (61) and lower block body (63) are provided with vertical XPS plate (7) utilizes horizontally disposed connecting reinforcement (5) and frame column affixed, described middle part masonry (62) opposite side vertically arranges the vertical XPS plate of one deck (7).

2. the damping filled-in panel for frame construction according to claim 1, is characterized in that: described vertical XPS plate (7) and horizontal X PS plate (8) are polystyrene foam plate, and thickness is 10mm ~ 20mm.

3. the damping filled-in panel for frame construction according to claim 1, is characterized in that:

Also adhesive layer is provided with between described vertical XPS plate (7) and horizontal X PS plate (8) and masonry (6) and frame column.

4. the damping filled-in panel for frame construction according to claim 1, is characterized in that: described masonry (6) block strength used is more than or equal to MU10, and severe is less than or equal to 10kN/m ³.

5. the damping filled-in panel for frame construction according to claim 1, it is characterized in that: knot built by the part M5 cement mixing mortar that described masonry (6) is positioned at more than platform, knot built by the part M10 cement mixing mortar being positioned at below platform, and masonry drying shrinkage is less than or equal to 0.4mm/m.

6. the damping filled-in panel for frame construction according to claim 1, is characterized in that: described connecting reinforcement (5) adopts 2 8 reinforcing bars, and pre-buried every 500mm along frame column height, described connecting reinforcement (5) anchors into 150-300mm in frame column, overhangingly imbeds masonry (6) interior 1000-1500mm.

7. the damping filled-in panel for frame construction according to claim 1, it is characterized in that: at the bottom of masonry (61) the distance from top Vierendeel girder of described top, 150-240mm place is provided with the oblique building block (9) for wedging, described oblique building block (9) angle of inclination is 30 ~ 80 °.

8. the damping filled-in panel for frame construction according to claim 1, is characterized in that: when the horizontal length of masonry (6) is greater than 5m, is equipped with constructional column in the middle of described masonry (6).