Lock groove building block for lock groove building block masonry infilled wall and infilled wall

Abstract

The invention provides a lock groove building block for a lock groove building block masonry infilled wall and the infilled wall, the building block comprises a standard building block and an edge building block, each surface of the standard building block is provided with a clamping head / clamping groove, a transverse groove notch and a vertical groove notch, and the edge building block is obtained by transforming the standard building block. The building blocks are combined to naturally form full-length transverse grooves and regular vertical grooves, the transverse grooves are provided with tie bars of a main body structure and are embedded with adhesive mortar with strong adhesion and other properties, the vertical grooves are also filled with the mortar, the integrity of the infilled wall is improved, the mortar in the grooves can consume energy during an earthquake, the upper, lower, left and right mortise and tenon joint structures generate mechanical occlusal force, and out-of-plane damage is prevented. The lock groove building block structure and the wall body group building method meet the requirements of building industrialization and greenization, are high in adaptability, can upgrade mainstream building blocks, are also suitable for various new building blocks, are simple and rapid in construction and low in material consumption, reduce construction wastes, and are beneficial to sustainable development of the industry.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of infill wall, and particularly relates to a lock groove block for a lock groove block masonry infill wall and the infill wall. BACKGROUND

[0002] The masonry infill wall is convenient in material selection, low in price, easy to meet the building function requirements, various in block size and model, convenient for construction and reliable connection with the main structure, and occupies a dominant position in the infill wall of various buildings. The infill wall-reinforced concrete (RC) frame structure has the advantages of flexible spatial arrangement, wide application range, low cost, good structural integrity and the like, and is the most commonly used building structure system. The results of the previous earthquake damage investigation show that the masonry infill wall often fails in brittle failure before the main structure, and the consequences caused by the damage of the building outer wall and the stair wall are more serious; the stiffness effect and the constraint effect of the infill wall on the frame structure are easy to cause the weak layer damage, the torsional damage and the short column damage of the structure.

[0003] The brittle failure of the masonry infill wall at an early stage not only affects the realization of the seismic fortification target, causes economic losses and personnel casualties, but also increases the time and cost of post-earthquake repair, and becomes a key factor affecting the seismic performance of the infill wall-frame structure. In theory, enhancing the integrity of the masonry infill wall, improving the brittle failure mode and energy dissipation performance of the masonry infill wall are effective ways to improve the seismic performance of the infill wall. The existing researches use the methods of adding diagonal bracing or fiber mortar surface layer to the wall, adding tie beams and structural columns, adding tensile reinforcement, and opening vertical slits and setting sliding damping layers in the wall, which have achieved ideal results, but there are problems such as complex wall structure and construction, affecting the building function, and it is difficult to promote in engineering. The new type of block with mortise and tenon and self-locking structure is beneficial to improving the integrity of the infill wall and improving the wall masonry efficiency because of the mechanical interlocking effect between the internal blocks. In order to form a reliable connection between the masonry infill wall and the main structure, the tensile reinforcement is usually arranged along the column height and buried in the wall horizontal mortar joint for a certain length, and the traditional masonry method of “one block, one trowel, one extrusion” is used, which has not formed a breakthrough research result. Under the background of building industrialization and greenization, combined with the objective requirement of connecting the infill wall and the main structure, the new type of block and the infill wall structure have important theoretical and practical value for improving the seismic performance of the masonry infill wall and realizing the technical innovation of the infill wall. SUMMARY

[0004] To address the problems existing in the prior art, this invention provides a slotted masonry block and infill wall for use in slotted masonry blocks. The blocks can form mortise and tenon joints at the top, bottom, left, and right, interlocking with each other. When the blocks are assembled, a continuous horizontal groove is naturally formed. Ties to the main structure can be placed in the groove, and bonding mortar with strong adhesion, low shrinkage, and high ductility can be embedded in it. Similarly, the bonding mortar is also filled in the regular vertical grooves naturally formed by the block assembly, improving the integrity of the infill wall. The mortar in the groove can dissipate energy during earthquakes. The mortise and tenon joints at the top, bottom, left, and right generate mechanical interlocking force, which can prevent out-of-plane damage during earthquakes.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a grooved block for a grooved masonry infill wall, comprising a standard block and an edge block in the shape of a cuboid; The standard block has a card head / slot on the left side, with a vertical notch on each side of the card head / slot; a card slot / card head in the middle of the right side, with a vertical notch on each side of the card slot / card head; a card head / card slot in the middle of the upper side, with a horizontal notch on each side of the card head / card slot; and a card slot / card head in the middle of the lower side, with a horizontal notch on each side of the card slot / card head. The edge block is a block that has at least one side in contact with the lock groove block masonry infill wall frame. The side block is obtained by modifying the surface of the standard block that contacts the lock groove block masonry infill wall frame into a plane. Multiple standard blocks are connected laterally by snapping together with the clips and slots on the left and right sides. The vertical grooves of two adjacent standard blocks on the left and right sides form a vertical groove. Multiple standard blocks are vertically connected by snap-fitting with clips and slots on the upper and lower sides. The horizontal grooves of two adjacent standard blocks form a horizontal groove.

[0006] Furthermore, the standard block has at least two rounded rectangular holes inside, with a hollowness of not less than 25%.

[0007] Furthermore, the dimensions of the clips on the standard blocks must meet the following requirements: d1=d2-Δ1-4C d2 = Design value in the drawing d3=d4-Δ2-2C Wherein, d1 is the card head width, d2 is the card slot width, d3 is the card head thickness, d4 is the card slot thickness, C is the protective layer thickness, Δ1 is the width difference between the card head and the card slot, and Δ2 is the thickness difference between the card head and the card slot; where Δ1 and Δ2 are between 2mm and 3mm.

[0008] The application also provides a lock-slot block masonry infill wall, which adopts the lock-slot block clamping, adopts full cis masonry to obtain a lock-slot block masonry infill wall body, and is connected horizontally by the clamping of the clamping head and the clamping groove on the left and right sides of the standard block or the edge block, and the vertical slots of the two blocks adjacent to each other form a vertical slot; and is connected vertically by the clamping of the clamping head and the clamping groove on the upper and lower sides of the standard block or the edge block, and the horizontal slots of the blocks adjacent to each other form a horizontal slot. A horizontal tie steel bar is arranged in the horizontal slot, and the horizontal tie steel bars on the two sides of the lock-slot block masonry infill wall body are connected with the column end of the lock-slot block masonry infill wall frame through the bidirectional U-shaped tie steel bar limiting energy consumption piece. A beam bottom L-shaped clamping piece is arranged in the vertical slot in contact with the beam end of the lock-slot block masonry infill wall frame, so as to realize the connection between the lock-slot block masonry infill wall body and the beam end of the lock-slot block masonry infill wall frame.

[0009] Further, the lock-slot block masonry infill wall body is divided into odd layers and even layers from top to bottom, and the edge blocks on the outermost side of the even layers have a length of half of the length of the standard block.

[0010] Further, the beam bottom L-shaped clamping piece comprises a beam bottom embedded piece, a bolt and an L-shaped steel sheet, the fixed end of the beam bottom embedded piece is embedded in the beam bottom, the movable end of the beam bottom embedded piece is provided with an opening, the L-shaped steel sheet is fixed in the opening through the bolt, and the opening supports the horizontal movement of the L-shaped steel sheet in the opening.

[0011] Further, one beam bottom L-shaped clamping piece is arranged in each vertical slot when the seismic fortification intensity is 8 degrees, the thickness of the L-shaped steel sheet is not less than 3 mm, the width of the L-shaped steel sheet is less than 2 mm to 3 mm of the vertical slot, and the length of the L-shaped steel sheet extending into the vertical slot is the maximum value of 1 / 3 of the height of the standard block or 100 mm.

[0012] Further, the bidirectional U-shaped tie steel bar limiting energy consumption piece comprises two symmetrically arranged U-shaped steel sheets and a connecting bolt, the opening ends of the two U-shaped steel sheets are arranged opposite to each other, and the connecting bolt is connected through the two U-shaped steel sheets, the connecting bolt is located on the center line common to the two symmetrically arranged U-shaped steel sheets, and the two side walls of the two U-shaped steel sheets are each provided with a limiting hole.

[0013] Further, the bidirectional U-shaped tie steel bar limiting energy consumption piece is arranged at the gap between the lock-slot block masonry infill wall body and the structural column end, the horizontal tie steel bars are located at the same height, the horizontal tie steel bar on one side of the lock-slot block masonry infill wall body is connected with the column end after passing through the two limiting holes on the one side U-shaped steel sheet, and the horizontal tie steel bar on the other side of the lock-slot block masonry infill wall body is connected with the column end after passing through the two limiting holes on the other side U-shaped steel sheet. When the seismic fortification intensity is 8 degrees, the horizontal tie steel bars are arranged along the whole length of the wall, and the bidirectional U-shaped tie steel bar limiting energy consumption piece is arranged horizontally on the two sides of the lock-slot block masonry infill wall every two skin bricks, and ties the horizontal tie steel bars on the two sides of the lock-slot block masonry infill wall body. The length of the bidirectional U-shaped reinforcing bar limiting energy dissipation piece is the same as the width of the standard block, the position of the limiting hole is not less than 10mm away from the outer edge, the distance between the limiting holes on the two U-shaped steel sheets is the sum of the distance from the outer side of the upper or lower clamping groove to the outside and the diameter of the limiting hole, the size of the opening is determined according to the actual transverse reinforcing bar diameter, and the thickness of the U-shaped steel sheet is 2mm-3mm.

[0014] Further, the L-shaped clamping piece is arranged at the beam bottom in the vertical groove and is filled with mortar, the transverse reinforcing bar passing through the bidirectional U-shaped reinforcing bar limiting energy dissipation piece and connected with the column end is arranged in the horizontal groove and is filled with mortar again, the gap between the lock groove block masonry infill wall body and the lock groove block masonry infill wall frame is filled with fireproof thermal insulation material, and the surfaces of the joints on both sides of the wall body are smeared with a certain thickness of cement mortar.

[0015] Compared with the prior art, the present application has at least the following beneficial effects: The present application provides a lock groove block for a lock groove block masonry infill wall, which has upper and lower and left and right mortise and tenon structures, and mechanical interlocking effects exist between the internal blocks. This unique structural design allows the blocks to be closely connected when assembled, forming an organic whole, which significantly improves the integrity of the infill wall. When subjected to external forces, the blocks can work together better, resisting deformation and damage, and enhancing the stability of the wall. The standardized block structure and clamping method make the construction process more simple and efficient, effectively improving the construction efficiency. The natural formation of horizontal and vertical grooves after block assembly provides a convenient condition for the arrangement of transverse tie steel bars. Construction personnel can easily place the steel bars in the grooves, ensuring the accurate position of the steel bars. At the same time, the embedding of adhesive mortar with strong adhesion, low shrinkage and high ductility in the grooves can further enhance the integrity of the structure. Moreover, this design makes the use of mortar more reasonable, reducing the waste of mortar. In summary, the present application abandons the traditional low-quality, low-efficiency and high-labor-consumption masonry method of "one block, one trowel, and one extrusion". In the construction process, the problem of serious misplacement of pre-embedded reinforcing bars in the column due to worker's error in laying mortar joint thickness is avoided, greatly improving the construction precision.

[0016] The present application adopts the above-mentioned lock groove block clamping to obtain a lock groove block masonry infill wall, which adopts a full cis-type masonry method, and the construction of the masonry infill wall can be completed by two processes: first, the blocks are assembled using the full cis-type masonry method, abandoning the traditional low-quality and low-efficiency construction operation, avoiding the situation that the pre-embedded reinforcing bars in the column are seriously misaligned due to the worker's error in laying mortar joint thickness, and improving the construction precision and efficiency; then, the transverse reinforcing bars connected with the reinforcing bars of the main structure are arranged in the horizontal grooves, and special adhesive mortar is embedded, enhancing the integrity; similarly, the adhesive mortar is also filled in the regular vertical grooves naturally formed by the block assembly, which is simple, fast and uses less mortar.

[0017] Further, under the action of earthquake, the lock slot block masonry infilled wall exhibits excellent seismic performance. Under the action of in-plane horizontal earthquake, the upper and lower mortise and tenon structures enhance the integrity of the wall body, improve the brittle failure mode, and improve the out-of-plane seismic performance; the mortar in the slot preferentially destroys the energy dissipation, supports the horizontal sliding energy dissipation of the block, and improves the horizontal seismic performance of the infilled wall. The vertical slots are arranged staggered to avoid the mortar from being damaged to form a through vertical crack under earthquake, and further improve the integrity.

[0018] Further, the mortar in the slot can protect the L-shaped clamping piece at the bottom of the bottom beam and the transverse reinforcing bar from corrosion, prolong the service life of these components, and ensure the long-term stability and safety of the wall body. At the same time, the filling of the mortar also reduces the erosion of the external environment on the inside of the wall body, improves the durability of the wall body, and reduces the cost of later maintenance and repair.

[0019] The lock slot block structure and wall body assembling method of the present application meet the development requirements of building industrialization and greenness. It has strong adaptability, can be upgraded and modified to the mainstream infilled wall block on the market, and can also be used for various concrete blocks and light blocks that are constantly emerging. The construction is simple and fast, the amount of mortar is small, the generation of construction waste is reduced, it meets the concept of green building, and is conducive to promoting the sustainable development of the building industry. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, a brief introduction will be given below to the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Figure 1 is a whole plan view of the lock slot block masonry infilled wall + wall frame connection measure; Figure 2 is a schematic view of a standard block of the present application; Figure 3 is a diagram of each unit block of the present application; Figure 4 is a schematic view of the horizontal slot and vertical slot obtained by assembling the blocks of the present application; Figure 5 is a schematic view of the size of the standard block and other blocks of the present application; Figure 6 is a two-way U-shaped reinforcing bar limiting energy dissipation piece of the present application; Figure 7 is an L-shaped clamping piece at the bottom of the out-of-plane beam of the infilled wall of the present application.

[0022] In the drawings, 1, top layer left side block; 2, top layer middle block; 3, top layer right side block; 4, even layer left side block; 5, standard block; 6, even layer right side block; 7, odd layer left side block; 8, odd layer right side block; 9, bottom layer left side block; 10, bottom layer middle block; 11, bottom layer right side block; 12, transverse reinforcing bar; 13, two-way U-shaped reinforcing bar limiting energy dissipation piece; 14, beam bottom L-shaped clamping piece; 501, upper plane clamping groove side wall; 502, left plane vertical groove notch; 503, left plane clamping head; 504, lower plane clamping head; 505, right plane vertical groove notch; 506, right plane clamping groove 506; 507, lower plane horizontal groove notch; 508, upper plane horizontal groove notch; 509, upper plane clamping groove 509; 1301, U-shaped steel sheet; 1302, connecting bolt; 1303, limiting hole; 1401, beam bottom embedded part; 1402, bolt; 1403, L-shaped steel sheet. DETAILED DESCRIPTION

[0023] The application will be further described below in combination with the drawings and specific embodiments.

[0024] The application provides a new type of block for constructing a lock groove block masonry filler wall, and the construction of the masonry filler wall can be completed by two processes due to the construction of the new type of block. Firstly, the block is laid, and the traditional low-quality and low-efficiency construction operation is abandoned, so that the serious mispositioning of the embedded reinforcing bar in the column due to the thickness error of the mortar joint laid by workers is avoided, and the construction precision and efficiency are improved. Then, the reinforcing bar of the main structure and the special bonding mortar are laid in the groove, the construction is more convenient and fast, the wet construction is reduced, the amount of mortar is reduced, and the lock groove block masonry filler wall is obtained by full in-line laying.

[0025] The lock groove block masonry filler wall provided by the application meets the requirements of building industrialization and green development, has strong adaptability, simple assembly, good integrity, can upgrade and transform the mainstream filler wall block on the market, and can be used for various concrete blocks and light blocks, and improves the construction precision and efficiency of the masonry filler wall.

[0026] The lock groove block masonry filler wall and the bonding mortar embedded between the blocks provided by the application further improve the self-integrity of the masonry filler wall in the plane and outside, and have high ductility and energy dissipation capacity.

[0027] The connection between the infilled wall and the frame mainly includes rigid connection and flexible connection, and the connection method between the rigidity and the flexibility is expected to play the advantages of the two connection methods. The new wall-frame connection assembly is provided by combining the construction characteristics of the new lock groove block and the infilled wall, and the new wall-frame connection assembly comprises: a pre-buried reinforcing bar, a bidirectional U-shaped reinforcing bar limiting energy dissipation piece (referred to as a U-shaped energy dissipation piece), a beam bottom pre-set infilled wall out-of-plane beam bottom L-shaped clamping piece and the like. The U-shaped energy dissipation piece is arranged at the gap between the wall and the structural column, and plays the roles of increasing the deformation coordination of the infilled wall and the reinforcing bar between the columns, limiting the position of the tie steel bar, helping the tie steel bar to bear stress and dissipating energy; the beam bottom L-shaped clamping piece can limit the out-of-plane displacement of the wall support. The gap between the infilled wall and the main structure member is filled with fireproof and heat-insulating material, and the surface of the joint is coated with a certain thickness of mortar on both sides.

[0028] The specific embodiments of the present application are given below, and it should be noted that the present application is not limited to the following specific embodiments, and any equivalent transformation made on the basis of the technical solutions of the present application falls within the protection scope of the present application.

[0029] As shown in Figures 2-5 The present application provides a lock groove block masonry infilled wall, which is divided into odd layers and even layers from top to bottom, and the lock groove block masonry infilled wall is composed of standard blocks 5 and edge blocks, wherein: 1) The standard block 5 is a cuboid with a height of 170 mm, a width of 190 mm and a length of 390 mm, two long 140 mm x wide 80 mm x high 170 mm circular rectangular holes with a circular radius of 15 are opened in the main structure to ensure that the hollow rate of the masonry structure is not less than 25% according to the specification requirements, and the two circular rectangular holes are arranged in the middle with an interval of 35 mm. A left plane clamping head 503 with a height of 170 mm, a width of 70 mm and a thickness of 20 mm is arranged at the middle position of the left plane of the standard block 5, and left plane vertical slot notches 502 with a height of 170 mm, a width of 25 mm and a thickness of 10 mm are arranged on both sides of the left plane clamping head 503; a clamping groove with a height of 20 mm, a width of 100 mm and a length of 390 mm is arranged at a distance of 25 mm from both ends of the upper plane of the standard block 5, the side wall 501 of the upper plane clamping groove has a width of 20 mm, and upper plane horizontal slot notches 508 are arranged on both sides of the clamping groove, the upper plane horizontal slot notches 508 have a height of 20 mm, a width of 25 mm and a length of 370 mm; a clamping groove with a height of 170 mm, a width of 70 mm and a thickness of 20 mm is arranged at the middle position of the right plane of the standard block 5, right plane vertical slot notches 505 with a height of 170 mm, a width of 25 mm and a thickness of 10 mm are arranged at positions on both sides of the clamping groove; a lower plane clamping head 504 with a height of 20 mm, a width of 100 mm and a length of 370 mm is arranged at a distance of 10 mm from the middle position of the right side of the standard block 5, and lower plane horizontal slot notches 507 are arranged on both sides of the lower plane clamping head 504.

[0030] The plurality of standard blocks 5 are connected horizontally by matching the left and right side clamping heads and clamping grooves, and the vertical grooves of the left and right adjacent two standard blocks 5 form a vertical groove; The plurality of standard blocks 5 are connected vertically by matching the upper and lower side clamping heads and clamping grooves, and the horizontal grooves of the upper and lower adjacent two standard blocks 5 form a horizontal groove; 2) The edge block is a block that contacts the lock slot block infill wall frame on at least one side, and the side of the standard block 5 that contacts the lock slot block infill wall frame or the ground is modified into a plane, that is, an edge block is obtained; The edge block includes a top left block 1, a top middle block 2, a top right block 3, an even layer left block 4, an even layer right block 6, an odd layer left block 7, an odd layer right block 8, a bottom left block 9, a bottom middle block 10, and a bottom right block 11. The left and right edge blocks of the bottom layer are half or whole blocks determined according to the odd or even number of layers, and the specific conditions are as follows: The even layer left block 4 has a main body of a cuboid with a height of 170mm, a width of 190mm, and a length of 195mm. To ensure that the hollow rate of the masonry structure is not less than 25% as required by the specification, a round rectangular hole with a length of 140mm, a width of 80mm, and a height of 190mm and a circular radius of 15 is opened in the main structure, and the round rectangular hole is centrally arranged 25mm from the left side. The left plane of the even layer left block 4 is a plane; a clamping groove with a height of 20mm, a width of 100mm, and a length of 195mm is arranged on the upper plane of the even layer left block 4 at a distance of 25mm from both ends, and the side wall 501 of the upper plane clamping groove has a width of 20mm. The upper plane clamping groove is provided with upper plane horizontal groove notches 508 on both sides, and the upper plane horizontal groove notches 508 have a height of 20mm, a width of 25mm, and a length of 195mm. A clamping groove with a height of 170mm, a width of 70mm, and a thickness of 20mm is arranged at the middle position of the right plane of the even layer left block 4, and a right plane vertical groove notch 505 is arranged on both sides of the clamping groove, and the right plane vertical groove notch 505 has a height of 170mm, a width of 25mm, and a thickness of 10mm. A lower plane clamping head 504 with a height of 20mm, a width of 100mm, and a length of 175mm is arranged at a middle position 20mm from the right side of the lower side of the even layer left block 4, and lower plane horizontal groove notches 507 are arranged on both sides of the lower plane clamping head 504, and the lower plane horizontal groove notches 507 have a height of 20mm, a width of 25mm, and a length of 195mm.

[0031] The main body of the even layer right side block 6 is a cuboid with a height of 170 mm, a width of 190 mm, and a length of 195 mm. To ensure that the hollow rate of the block structure is not less than 25% as required by the specification, a circular rectangular hole with a length of 140 mm, a width of 80 mm, and a height of 190 mm is opened in the main body structure, with a circular arc radius of 15. The circular rectangular hole is 25 mm away from the right side and is centrally arranged. The right side plane of the even layer right side block 6 is a plane; a left side plane catch 503 with a height of 170 mm, a width of 70 mm, and a thickness of 20 mm is arranged at the middle position of the left side plane of the even layer right side block 6; two left side plane vertical slot notches 502 with a height of 170 mm, a width of 25 mm, and a thickness of 10 mm are respectively arranged on both sides of the left side plane catch 503; a catch slot upper side plane catch sidewall 501 with a height of 20 mm, a width of 100 mm, and a length of 195 mm is arranged on the upper side plane of the even layer right side block 6, 25 mm away from both ends; two upper side plane horizontal slot notches 508 with a height of 20 mm, a width of 25 mm, and a length of 195 mm are arranged on both sides of the catch slot; a lower side plane catch 504 with a height of 20 mm, a width of 100 mm, and a length of 175 mm is arranged at the middle position of the right side of the lower side plane of the even layer right side block 6; two lower side plane horizontal slot notches 507 with a height of 20 mm, a width of 25 mm, and a length of 195 mm are respectively arranged on both sides of the lower side plane catch 504.

[0032] The rest of the blocks are made by modifying the standard block 5, the upper side and left side of the left side block 1 of the top layer need to contact with the frame structure, remove the upper side plane clamping groove 509 of the standard block 5, remove the left side plane clamping head 503, and fill the left side plane left and right vertical slot gap to get the left side block 1 of the top layer; the upper side of the middle block 2 of the top layer needs to contact with the frame structure, remove the upper side plane clamping groove 509 of the standard block 5 to get the middle block 2 of the top layer; the upper side and right side of the right side block 3 of the top layer need to contact with the frame structure, remove the upper side plane clamping groove 509 of the standard block 5, fill the right side plane clamping groove 506, and fill the right side plane vertical slot gap 505 to get the right side block 3 of the top layer; the left side of the left side block 7 of the odd layer needs to contact with the frame structure, remove the left side plane clamping head 503 of the standard block 5, and fill the left side plane vertical slot gap 502 to get the left side block 7 of the odd layer; the right side of the right side block 8 of the odd layer needs to contact with the frame structure, fill the right side plane clamping groove 506 of the standard block 5, and fill the right side plane vertical slot gap 505 to get the right side block 8 of the odd layer; the left and right blocks of the bottom layer are determined according to the odd and even layers, the even layer uses the left and right blocks of the even layer, and the odd layer uses the left and right blocks of the odd layer; the lower side and left side of the left side block 9 of the bottom layer need to contact with the frame structure, remove the lower side plane clamping head 504 of the left side block 7 / the left side block 4 of the even layer to get the left side block 9 of the bottom layer; the lower side of the middle block 10 of the bottom layer needs to contact with the frame structure, remove the lower side plane clamping head 504 of the standard block 5 to get the middle block 10 of the bottom layer; the lower side and right side of the right side block 11 of the bottom layer need to contact with the frame structure, remove the lower side plane clamping head 504 of the right side block 8 / the right side block 6 of the even layer to get the right side block 3 of the top layer.

[0033] Preferably, in production, the width and thickness of the block left side plane clamping head 503 and the block lower side plane clamping head 504 are reduced (if the block does not have these two parts, it can not be processed) to facilitate assembly, and the specific size meets the following requirements: Let d1 be the width of the clamping head, d2 be the width of the clamping groove, d3 be the thickness of the clamping head, d4 be the thickness of the clamping groove, and C be the thickness of the protective layer, The width difference between the clamping head and the clamping groove is Δ1, The thickness difference between the clamping head and the clamping groove is Δ2; wherein Δ1, Δ2 are 2mm-3mm.

[0034]

[0035]

[0036]

[0037] Preferably, the connection is as follows Figure 6As shown, the bidirectional U-shaped tie limiting energy dissipation piece 13 (referred to as U-shaped clamping piece) includes two symmetrically arranged U-shaped steel sheets 1301 and a connecting bolt 1302, the two U-shaped steel sheets 1301 are oppositely arranged and connected through the connecting bolt 1302, and the connecting bolt 1302 is located on the common center line of the two symmetrically arranged U-shaped steel sheets 1301; the two side walls of the two U-shaped steel sheets 1301 are both provided with limiting holes 1303, the transverse tie 12 on one side of the lock groove masonry infill wall body passes through the two limiting holes 1303 of the one side U-shaped steel sheet 1301 and is connected with the column end, the transverse tie 12 on the other side of the lock groove masonry infill wall body passes through the limiting hole 1303 of the other side U-shaped steel sheet 1301 and is connected with the column end, and the two transverse ties 12 at the same height are arranged in parallel, and the distance between the two steels is the width of the brick minus the thickness of the two protective layers; Preferably, in use, the connecting ends of the transverse ties 12 at the same height pass through the limiting holes 1303 of the bidirectional U-shaped tie limiting energy dissipation piece 13 respectively and are connected with the column end, so as to realize the connection between the lock groove masonry infill wall body and the column end, the bidirectional U-shaped tie limiting energy dissipation piece 13 is arranged at the gap between the lock groove masonry infill wall body and the structure column end, and plays the roles of increasing the deformation coordination of the tie between the lock groove masonry infill wall and the structure column end, limiting the position of the tie, helping the tie to bear force and dissipating energy.

[0038] Preferably, the connection between the lock groove masonry infill wall body and the beam end adopts an L-shaped clamping piece 14 outside the plane of the infill wall, and the connection is as shown in the figure. Figure 7 As shown, the beam bottom embedded part 1401 is embedded in the beam bottom with the opening side outside, which is used for connecting the L-shaped steel sheet 1403, the L-shaped steel sheet 1403 can be connected with the beam bottom embedded part 1401 through the bolt 1402, and the main role is to constrain the out-of-plane displacement between the wall body and the frame beam, and can play a certain shear function in the plane of the wall body; the opening of the embedded part has a certain length, supports the horizontal movement of the L-shaped steel sheet 1403 in it, and the L-shaped steel sheet 1403 can play the role of moving horizontally with the wall body without damaging the relatively brittle block during horizontal earthquake, and fully plays the energy dissipation advantage of the wall body.

[0039] Preferably, the gap between the infill wall body and the main structure member is filled with fireproof and thermal insulation material, and the surfaces of the joint are coated with a certain thickness of cement mortar on both sides.

[0040] Preferably, the size of the transverse tie 12 is determined according to the requirements of the seismic code.

[0041] Preferably, when the seismic fortification intensity is 8 degrees, the flexible connection should be arranged along the whole length of the wall to pass through the transverse tie 12, the bidirectional U-shaped tie limiting energy dissipation piece 13 should be arranged at an interval of about two skin bricks and be matched with the transverse tie 12, and the L-shaped clamping piece 14 should be arranged at an interval of one vertical joint.

[0042] Preferably, the length of the bidirectional U-shaped tie-bar limiting energy-consuming component 13 should be the same as the width of the block. The opening positions on both sides of the bidirectional U-shaped tie-bar limiting energy-consuming component 13 should be no less than 10mm from the outer edge. The distance between the upper limit hole 1303 of the two U-shaped steel plates 1301 of the bidirectional U-shaped tie-bar limiting energy-consuming component 13 is the sum of the distance from the outer side of the upper or lower side groove and the diameter of the limiting hole. The size of the opening is determined according to the actual diameter of the transverse tie bar 12. The diameter of the bidirectional U-shaped tie-bar limiting energy-consuming component 13 should be 2mm larger than the diameter of the transverse tie bar 12. The thickness of the U-shaped steel plate 1301 is 2mm-3mm. The thickness of the L-shaped steel plate 1403 should not be less than 3mm, and the width should be 2-3mm less than the vertical groove. The length extending into the vertical groove is the maximum value of 1 / 3 of the height of the standard block 5 or 100mm.

[0043] like Figure 3 The specific construction method of the structure is shown below: (1) First, lay the left side block 9 of the bottom layer, then lay the adjacent middle block 10 of the bottom layer. Insert the left side plane clip 503 of the middle block 10 of the bottom layer into the middle groove of the right side plane of the left side block 9 of the bottom layer. The grooves at both ends of the left side plane of the middle block 10 of the bottom layer and the vertical groove notch 505 of the right side plane of the left side block 9 of the bottom layer form a vertical groove. After the middle block 10 of the bottom layer is laid in the same way, lay the right side block 11 of the bottom layer. Insert the left side plane clip 503 of the right side block 11 of the bottom layer into the middle groove of the right side plane of the middle block 10 of the bottom layer. The bottom layer is laid. (2) The method for laying the next layer of blocks is as follows: Insert the clip 504 on the lower side of the left side block 4 of the odd / even layer into the groove formed between the two clips on the upper side of the left side block 9 of the bottom layer. The gap outside the groove 509 on the upper side of the left side block 9 of the bottom layer will naturally form a horizontal groove. Then connect the standard blocks 5 in the same way, and connect the right side blocks 6 of the odd / even layer on the right side. The remaining layers are completed in the same way. The basic principle is that the clips of each block are inserted into the grooves of the adjacent blocks until the entire wall is assembled. (3) Horizontal tie bars 12 connected to the column are arranged in the transverse groove. The horizontal tie bars 12 are located at the same height, pass parallel through the limiting holes 1303 of the bidirectional U-shaped tie bar limiting energy dissipation component 13, and are connected to the steel bars on the column. The specific arrangement density is determined according to actual needs; (4) Set up the bottom L-shaped clip 14 in the vertical groove of the top block and fill it with mortar. Connect the locking groove block masonry infill wall to the beam through the bottom L-shaped clip 14 outside the infill wall plane. (5) The gaps between the infill wall and the main structural components shall be filled with fireproof and heat-insulating materials; (6) Fill the groove with special bonding mortar, and apply a certain thickness of cement mortar to both sides of the wall surface at the joint. See also the schematic diagram. Figure 1 .

[0044] Preferably, the masonry is naturally formed with vertical grooves and horizontal grooves, the L-shaped clamping piece 14 is arranged in the vertical grooves and filled with mortar, the transverse reinforcement 12 is arranged in the horizontal grooves and connected with the column end, and then the horizontal grooves are filled with mortar, so that the overall stability is enhanced, and the mortar can also protect the transverse reinforcement and the limiting clamping piece.

[0045] In summary, the present application has the following advantages: 1. The traditional masonry method of "one block, one trowel, and one extrusion" is abandoned, the traditional low-quality and low-efficiency construction method is abandoned, the labor consumption is high, and the serious mispositioning of the pre-buried reinforcement in the column due to the thickness error of the worker laying the mortar joint is avoided, and the construction precision and efficiency are improved.

[0046] 2. The masonry block has a mortise and tenon structure up, down, left and right, and there is a certain mechanical interlocking effect between the internal masonry blocks. It is beneficial to improve the overall performance of the infilled wall and improve the wall masonry efficiency. After the infilled wall is damaged by the earthquake in the plane, the mechanical interlocking of the structure under the out-of-plane horizontal earthquake can effectively resist the out-of-plane damage.

[0047] 3. The masonry block is naturally formed with horizontal grooves and vertical grooves after combination, which facilitates the arrangement of the transverse reinforcement and the plastering, and the mortar with strong adhesion, low shrinkage and high ductility can be embedded in the groove to enhance the overall performance of the structure.

[0048] 4. When the masonry block is used for masonry infilled wall construction, it can be completed by two processes: first, the masonry block is laid, the traditional low-quality and low-efficiency construction operation is abandoned, the serious mispositioning of the pre-buried reinforcement in the column due to the thickness error of the worker laying the mortar joint is avoided, and the construction precision and efficiency are improved; then, the reinforcement of the main structure is arranged in the horizontal groove, and the special adhesive mortar is embedded to enhance the overall performance; similarly, the adhesive mortar is also filled in the regular vertical grooves formed by the combination of the masonry blocks. The construction is simple, fast, and the amount of mortar is small.

[0049] 5. Under the action of horizontal earthquake in the plane, the mortise and tenon structure up, down, left and right enhances the overall performance of the masonry infilled wall, improves its brittle failure mode, and improves the out-of-plane seismic performance; under the action of earthquake, the mortar in the groove is preferentially damaged and energy is consumed, supporting the horizontal sliding of the masonry block in the groove and consuming energy, thereby improving the horizontal seismic performance of the infilled wall.

[0050] 6、Bidirectional U-shaped tie limiting energy dissipation piece 13 is arranged at the gap between the wall and the structure column, which increases the deformation compatibility of the infilled wall and the column, limits the position of the tie steel bar, helps the stress of the tie steel bar and dissipates energy. The L-shaped clamping piece at the bottom of the out-of-plane beam of the infilled wall can constrain the out-of-plane displacement between the wall and the frame beam, and can play a certain shear function in the plane of the wall; and the opening of the embedded part has a certain length, supporting the horizontal movement of the L-shaped steel sheet therein, and the L-shaped steel sheet can move horizontally with the wall during horizontal earthquakes, without damaging the relatively brittle blocks. The mortar in the vertical groove and the horizontal groove of the masonry infilled wall can protect the L-shaped clamping piece 14 at the bottom of the bottom beam and the horizontal tie steel bar 12 from corrosion. The strength of the mortar is not as strong as that of the block, and through the staggered arrangement of the vertical grooves, the through vertical cracks formed by the premature damage of the mortar during the earthquake are effectively avoided, thereby improving the integrity.

[0051] The present application innovatively proposes a new type of lock groove masonry with an internal lock and external groove structure, and a new type of wall-frame connecting assembly and connecting structure with energy dissipation performance and between rigid connection and flexible connection, to strengthen the out-of-plane stability of the masonry infilled wall, reduce the interaction between the in-plane masonry infilled wall and the frame, realize the cooperative deformation and "graded energy dissipation" mechanism of the infilled wall and the frame (the frame bears the load in the initial elastic stage, and the lock groove structure develops friction energy dissipation in an orderly manner in the plastic stage), break through the traditional design concept of separating the infilled wall and the frame, realize a "semi-rigid" connection system, and improve the seismic performance of the infilled wall-RC frame. At the same time, the new type of lock groove masonry infilled wall is convenient to connect with the frame, has high industrialization degree, guaranteed construction quality, high construction efficiency, and is convenient for engineering popularization; the building function and durability of the wall are guaranteed.

[0052] The new type of lock groove block structure contributes to the stiffness of the cooperative working mechanism of the infilled wall and the frame. Mortise and tenon engagement effect: the mortise and tenon engagement of the lock groove forms multidirectional constraint, improves the shear stiffness between the blocks, and reduces the interface slip. Shear stiffness contribution: through the design and optimization of the engagement depth and inclination angle, the "mechanical interlocking" effect is formed. Bending stiffness contribution: the lock groove structure enhances the bending continuity between the blocks, delays the crack development. Friction energy dissipation mechanism: the Coulomb friction of the mortise and tenon contact surface provides additional damping under small displacement, and inhibits the initial stiffness degradation. The lock groove block participates in the overall stiffness contribution through the following paths: the stiffness of the block itself is transmitted to the frame joint through the mortise and tenon engagement (direct path); the masonry wall acts as a diagonal compression strut, and shares the horizontal load through the deformation coordination of the frame beam and column (indirect path). The lock groove connecting structure between the blocks affects the stiffness of the wall, and then affects the stress of the frame, and finally affects the stiffness and deformation performance of the overall structure.

[0053] The force-displacement response characteristics of energy dissipation connectors in the elastic-plastic stage. Energy dissipation connectors transfer shear force and bending moment at the wall-frame interface, dissipate seismic energy through plastic deformation, and delay structural damage. In the elastic-plastic stage, energy dissipation connectors exhibit significant friction-engage synergistic energy dissipation mechanism, the hysteresis curve is full shuttle-shaped, the yield stiffness degradation rate is lower than that of traditional bolt connection, and it has superior damage tolerance.

[0054] The internal force redistribution law and failure mode transition of frame under the damage state of infilled wall. The failure of traditional infilled wall is mainly shear slip or diagonal crushing, and the frame is characterized by shear failure or node failure; the failure of new type of lock slot masonry infilled wall may shift to gradual destruction dominated by interlock failure between blocks, and the frame tends to bend yield due to more uniform internal force redistribution.

[0055] The infilled wall and frame work together to improve the stiffness and bearing capacity of the overall structure. Due to the support of the infilled wall to the frame, the failure mode of the RC frame will be different from that of the empty frame without infilled wall, such as the movement of column end plastic hinge, which will make the lateral stiffness and horizontal bearing capacity of the RC frame higher than that of the empty frame; due to the constraint of the frame to the infilled wall, the failure mode of the infilled wall may be different from that of the masonry wall, and its lateral stiffness, horizontal bearing capacity and deformation capacity will be higher than that of the masonry wall without frame constraint.

Claims

1. A type of grooved block for use in masonry infill walls, characterized in that, Includes standard rectangular blocks (5) and edge blocks; The standard block (5) has a card head / slot on the left side, with a vertical notch on each side of the card head / slot; a card slot / card head in the middle of the right side, with a vertical notch on each side of the card slot / card head; a card head / card slot in the middle of the upper side, with a horizontal notch on each side of the card head / card slot; and a card slot / card head in the middle of the lower side, with a horizontal notch on each side of the card slot / card head. The edge block is a block that has at least one side in contact with the lock groove block masonry infill wall frame. The side block is obtained by modifying the surface of the standard block (5) that is in contact with the lock groove block masonry infill wall frame into a plane. Multiple standard blocks (5) are connected laterally by snapping together with the snap-fit ​​slots on the left and right sides. The vertical groove notches of two adjacent standard blocks (5) form a vertical groove. Multiple standard blocks (5) are vertically connected by snap-fitting the upper and lower sides. The horizontal groove notches of two adjacent standard blocks (5) form a horizontal groove.

2. The lock-groove block for infill masonry walls according to claim 1, characterized in that, The standard block (5) has at least two rounded rectangular holes inside, with a hollowness of not less than 25%.

3. A grooved block for use in masonry infill walls according to claim 1, characterized in that, The dimensions of the clip on the standard block (5) must meet the following requirements: d1=d2-Δ1-4C d2 = Design value in the drawing d3=d4-Δ2-2C Wherein, d1 is the card head width, d2 is the card slot width, d3 is the card head thickness, d4 is the card slot thickness, C is the protective layer thickness, Δ1 is the width difference between the card head and the card slot, and Δ2 is the thickness difference between the card head and the card slot; where Δ1 and Δ2 are between 2mm and 3mm.

4. A type of grooved block masonry infill wall, characterized in that, Using the locking slot masonry blocks as described in any one of claims 1 to 3, the locking slot masonry infill wall body is obtained by full-length masonry construction. When the standard masonry block (5) or the edge masonry block is connected laterally by locking the locking head and locking slot on the left and right sides, the vertical slot notch of the two adjacent masonry blocks on the left and right sides forms a vertical slot; the standard masonry block (5) or the edge masonry block is connected vertically by locking the locking head and locking slot on the upper and lower sides, the horizontal slot notch of the adjacent masonry blocks on the upper and lower sides forms a horizontal slot. Transverse tie bars are set in the transverse groove. The transverse tie bars on both sides of the lock groove masonry infill wall body are connected to the column end of the lock groove masonry infill wall frame through bidirectional U-shaped tie bars limiting energy dissipation components (13). An L-shaped clamp (14) is installed in the vertical groove that contacts the beam end of the lock groove masonry infill wall frame to realize the connection between the lock groove masonry infill wall body and the beam end of the lock groove masonry infill wall frame.

5. A grooved block masonry infill wall according to claim 4, characterized in that, The main body of the lock groove masonry infill wall is divided into odd-numbered layers and even-numbered layers from top to bottom. The outermost edge block of the even-numbered layer is half the length of the standard block (5).

6. A grooved block masonry infill wall according to claim 4, characterized in that, The beam bottom L-shaped fastener (14) includes a beam bottom embedded part (1401), a bolt (1402), and an L-shaped steel sheet (1403). The fixed end of the beam bottom embedded part (1401) is embedded in the bottom of the beam, and the movable end of the beam bottom embedded part (1401) is provided with an opening. The L-shaped steel sheet (1403) is fixed in the opening by bolts. The opening supports the horizontal movement of the L-shaped steel sheet (1403) within it.

7. A grooved block masonry infill wall according to claim 6, characterized in that, When the seismic intensity is 8 degrees, each vertical groove is equipped with a beam bottom L-shaped clamp (14). The thickness of the L-shaped steel sheet (1403) is not less than 3mm, the width is 2mm~3mm less than the vertical groove, and the length extending into the vertical groove is the maximum value of 1 / 3 or 100mm of the height of the standard block (5).

8. A grooved block masonry infill wall according to claim 4, characterized in that, The bidirectional U-shaped tie rod limiting energy dissipation component (13) includes two symmetrically arranged U-shaped steel plates (1301) and connecting bolts (1302). The open ends of the two U-shaped steel plates (1301) are set opposite to each other and connected by connecting bolts (1302). The connecting bolts (1302) are located on the common center line of the two symmetrically arranged U-shaped steel plates (1301). A limiting hole (1303) is opened on both side walls of the two U-shaped steel plates (1301).

9. A grooved block masonry infill wall according to claim 8, characterized in that, The bidirectional U-shaped tie rod limiting energy dissipation component (13) is arranged in the gap between the lock groove masonry infill wall body and the end of the structural column. The transverse tie rod (12) is located at the same height. The transverse tie rod (12) on one side of the lock groove masonry infill wall body passes through the two limiting holes (1303) on one side of the U-shaped steel plate (1301) and is connected to the end of the column. The transverse tie rod (12) on the other side of the lock groove masonry infill wall body passes through the two limiting holes (1303) on the other side of the U-shaped steel plate (1301) and is connected to the end of the column. When the seismic intensity is 8 degrees, horizontal tie bars (12) are arranged along the entire length of the wall. Two-way U-shaped tie bars limit energy dissipation components (13) are arranged horizontally on both sides of the lock groove masonry infill wall every two brick courses, and the horizontal tie bars (12) on both sides of the lock groove masonry infill wall body are tied together. The length of the bidirectional U-shaped tie rod limiting energy-consuming component (13) is the same as the width of the standard block (5). The position of the limiting hole (1303) is not less than 10mm from the outer edge. The distance between the two U-shaped steel sheets (1301) and the limiting hole (1303) is the sum of the distance between the outer side of the upper or lower side groove and the diameter of the limiting hole. The size of the opening depends on the actual diameter of the transverse tie rod (12). The thickness of the U-shaped steel sheet (1301) is 2mm-3mm.

10. A grooved block masonry infill wall according to claim 4, characterized in that, Set up an L-shaped clamp (14) at the bottom of the beam in the vertical groove and fill it with mortar. Set up a transverse tie (12) that passes through the bidirectional U-shaped tie limit energy dissipation component (13) and connects to the column end in the horizontal groove and fill it with mortar. Fill the gap between the lock groove masonry infill wall body and the lock groove block masonry infill wall frame with fireproof and heat-insulating material. Apply a certain thickness of cement mortar to both sides of the wall surface at the joint.

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