CN109898691B - Damping grounding type fabricated reinforced concrete tuned mass damping wall - Google Patents
Damping grounding type fabricated reinforced concrete tuned mass damping wall Download PDFInfo
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 19
- 239000011178 precast concrete Substances 0.000 claims abstract description 90
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- 239000000725 suspension Substances 0.000 claims description 41
- 239000004567 concrete Substances 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
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Abstract
The invention relates to a damping grounding type fabricated reinforced concrete tuned mass damping wall which comprises a structural beam, structural columns, a precast concrete wall body, upper connecting nodes, horizontal springs, distributed sliding supports, wall body splicing nodes and bottom connecting nodes, wherein a plurality of structural beams and a plurality of structural columns form a main structure, the main structure and the precast concrete wall body are respectively connected through the upper connecting nodes, the horizontal springs and the distributed sliding supports, and the precast concrete wall body is connected with the ground through the bottom connecting nodes. The damping wall provided by the invention has the advantages that frequency modulation resonance is generated between the damping wall and the main structure when wind disasters and earthquakes occur, and the energy of the main structure is dissipated, so that the main structure is protected, the damping effect is good, the interlayer displacement angle distribution is more uniform, the structural damage mode is improved, the corrosion resistance and fire resistance are good, the structure is simple, and the assembly degree is high.
Description
Technical Field
The invention relates to the technical field of civil engineering earthquake-resistant structural systems, in particular to a damping grounding type fabricated reinforced concrete tuned mass damping wall.
Background
Earthquake is one of the most damaging disasters, and the strong earthquake occurring in recent years causes huge personnel loss and property loss. While China is one of areas frequently suffering from earthquake disasters, more than 5-level earthquakes are generated 19 times in 2017 only. How to actively promote the earthquake-proof disaster-proof capability of the engineering structure has important significance for guaranteeing the life and property safety of people and stabilizing the social and economic development. Along with the continuous development of disaster prevention and shock absorption theory and technology of engineering structures, the design concept is gradually developed from shock resistance to new concepts of shock absorption, shock isolation and the like, and corresponding devices are also greatly developed, such as viscous dampers, rubber shock insulation supports, swing walls and the like.
Dynamic vibration absorbers are a substructure attached to a main structure, generally comprising three main elements of mass, stiffness and damping, and have wide application in the fields of aerospace, machinery, civil engineering and the like. Currently in the civil engineering field, this type of device is used for wind vibration and seismic control of high-rise, towering structures, more often than not, called tuned mass dampers (Tuned Mass Damper, TMD). Some devices have been disclosed, such as permanent magnet suspended horizontally tuned mass dampers (CN 204098268U), pendulum eddy current tuned mass damper devices (CN 103132628 a), etc., all belong to this class. The device is characterized in that solid such as steel, lead blocks and the like are used as mass units, and a spring unit and a damping unit are arranged between the solid mass and a main structure to form a vibrator system to absorb and dissipate vibration energy in the main structure.
Since the dynamic vibration absorber is usually required to occupy a certain building space, the concept of utilizing the original components of the structure is gradually generated, such as an integrated tuned mass damping wall (CN 105672516B) authorized by the applicant, and the like. However, the damping units of the tuned damping wall are still connected between the mass units and the main structure, and are basically a dynamic vibration absorbing device. And the other type of damping grounding type dynamic vibration absorbing device is rarely reported in the current civil engineering structure field.
Therefore, the invention utilizes the concept of damping grounding type dynamic vibration absorption, combines the current trend of building industrialization development, fully utilizes the inherent wall body of the building, designs a novel assembled reinforced concrete tuned mass damping wall, and enables the damping unit of the wall body to be connected with the ground, thereby providing a novel device for the damping design of engineering structures.
Disclosure of Invention
The invention aims to overcome the problems in the prior art, and provides a damping grounding type assembled reinforced concrete tuned mass damping wall which can be used for a damping system of a newly built building in a multi-layer structure and earthquake-resistant reinforcement of an existing building, not only can fully improve the damping effect of a general tuned mass damper by utilizing grounding type damping, but also can realize an industrialized construction mode by utilizing the prefabricated assembly thought to design the structure of the reinforced concrete wall, and provides a novel tuned mass damping wall structure for newly built building earthquake-resistant systems and reinforcement reconstruction of the existing building.
In order to achieve the technical purpose and the technical effect, the invention is realized by the following technical scheme:
the utility model provides a tuned mass damping wall of damping ground connection formula reinforced concrete, includes structural beam, structural column, precast concrete wall body, goes up connected node, horizontal spring, distributes sliding support, wall body concatenation node and bottom connected node, a plurality of the structural beam with a plurality of the structural column is connected and is constituteed the main structure, connect through last connected node, horizontal spring and distribution sliding support respectively between main structure and the precast concrete wall body, the precast concrete wall body passes through bottom connected node and is connected with ground.
Further, the precast concrete wall comprises longitudinal distribution ribs, transverse distribution ribs and concrete, wherein the longitudinal distribution ribs and the transverse distribution ribs are respectively arranged at equal intervals along the length and the height directions of the precast concrete wall, two or more layers are arranged according to the thickness of the precast concrete wall, concrete is arranged between each layer, a plurality of holes are formed along the length direction of the precast concrete wall, the weight of the precast concrete wall is adjusted by filling objects in the holes, and the precast concrete walls are connected through wall splicing nodes.
Further, the wall body splicing node is composed of an embedded dowel bar, a grouting hole and an embedded wall body, wherein the embedded wall body is a convex part of the precast concrete wall body and is used for being embedded into a corresponding groove part of the upper precast concrete wall body, the grouting hole is formed in the precast concrete wall body, the lower half part of the embedded dowel bar is precast and cast in situ in the precast concrete wall body, and the upper half part of the embedded dowel bar is inserted into the grouting hole of the upper precast concrete wall body and is injected with mortar through the grouting hole.
Further, the grouting holes are in an inverted L shape, the vertical parts of the grouting holes are used for inserting pre-buried inserted bars, and the horizontal parts of the grouting holes are used for grouting equal-strength mortar.
Further, go up the connected node and constitute by top crossbeam, suspension track, suspension pulley, top shaft, suspension outsourcing concrete and suspension pre-buried steel sheet, top crossbeam both ends and main part construct rigid coupling, suspension track welds in top crossbeam bottom flange, suspension pre-buried steel sheet latter half is pre-buried in precast concrete wall, and the latter half adopts the suspension outsourcing concrete parcel, suspension pulley passes through the top shaft and is connected with suspension pre-buried steel sheet for bear precast concrete wall part gravity, and roll along suspension track.
Furthermore, the top cross beam is welded with H-shaped steel or an I-shaped section and is provided with corresponding stiffening rib plates, and a tiny gap is kept between the lower end of the suspension rail and the top end of the precast concrete wall body.
Further, the horizontal spring comprises spring and sleeve, the sleeve both ends are connected with precast concrete wall body and main structure respectively, the spring sets up in the sleeve outside for inject the spring direction of deformation, avoid the too big unexpected rocking outside the plane.
Further, the distributed sliding support comprises an upper sliding support, a lower sliding support and a sliding layer, wherein the upper sliding support is connected to the precast concrete wall, the lower sliding support is connected to the main structure, the sliding layer is slidingly arranged between the upper sliding support and the lower sliding support, and the sliding layer is a smooth sliding layer or a sliding layer with certain friction force.
Further, the bottom connected node comprises wheel wall body, spacing curb plate, bottom pulley, bottom shaft, attenuator and fixed node, the wheel wall body passes through wall body concatenation node and is connected with precast concrete wall body, the bottom shaft inlays in wheel wall body bottom recess, the bottom pulley is rotationally installed in the bottom epaxial to the lower limb of bottom pulley and ground contact for bear partial precast concrete wall body weight and roll on ground, the attenuator both ends respectively with fixed node and wheel wall body hinge, fixed node rigid coupling is in ground, spacing curb plate is fixed in ground and sets up in the wheel wall body outside.
Further, the precast concrete wall body is freely arranged in a sliding mode through an upper connecting node, a distributed sliding support and a bottom connecting node, a mass unit is provided, the horizontal spring provides rigidity, the damper provides grounding damping, the upper connecting node, the distributed sliding support and the bottom connecting node bear the mass of the precast concrete wall body together, a damping grounding type vibration absorber is formed, and earthquake input energy is dissipated.
The beneficial effects of the invention are as follows:
the damping grounding type fabricated reinforced concrete tuned mass damping wall provided by the invention has the advantages that frequency modulation resonance occurs between the damping grounding type fabricated reinforced concrete tuned mass damping wall and a main structure when wind disasters and earthquakes come, energy input into the main structure by dynamic disasters is transmitted to the tuned damping wall, and the reciprocating motion of the tuned damping wall causes hysteresis deformation of the damper, so that the energy is dissipated, and the main structure is protected. Compared with a conventional tuned damper, the grounded damping unit enables the damper to have better vibration reduction effect, and the wall mass blocks along the structure height enable interlayer displacement angle distribution of the main structure to be more uniform. The precast concrete wall body enables installation of the device to be convenient and rapid, and the corrosion resistance and the fire resistance of the wall body are better than those of the steel structure wall body due to the concrete surface. The device has the advantages of simple structure, strong damping capacity, improved structural damage mode, high assembly degree and the like.
Drawings
FIG. 1 is a schematic view of the overall elevation of the present invention;
FIG. 2 is a cross-sectional view 1-1 of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic diagram of an upper connection node configuration of the present invention;
FIG. 4 is a schematic view of a wall splice node construction of the present invention;
FIG. 5 is a schematic view of the bottom connecting node construction of the present invention;
FIG. 6 is a schematic view of the connection construction of the precast concrete wall and main structure of the present invention;
fig. 7 is a schematic view of the construction of the prefabricated concrete wall body of the present invention when holes are opened.
The reference numerals in the figures illustrate: a structural beam 1; a structural column 2; a precast concrete wall 3; an upper connection node 4; a horizontal spring 5; a distributed sliding support 6; wall splicing nodes 7; the bottom is connected with a node 8; longitudinal distribution ribs 31; transverse distribution ribs 32; concrete 33; a top cross member 41; a suspended track 42; a suspension pulley 43; a top axle 44; suspending the cladding concrete 45; suspending the pre-buried steel plate 46; a spring 51; a sleeve 52; an upper slide support 61; a lower slide support 62; a sliding layer 63; embedding the dowel bars 71; grouting holes 72; embedded in the wall 73; a wheel receiving wall 81; a limit side plate 82; a bottom pulley 83; a bottom axle 84; a damper 85; the node 86 is fixed.
Detailed Description
The invention will be described in detail below with reference to the drawings in combination with embodiments.
As shown in fig. 1 and 2, a damping grounding type fabricated reinforced concrete tuned mass damping wall comprises a structural beam 1, structural columns 2, a precast concrete wall body 3, an upper connecting node 4, horizontal springs 5, distributed sliding supports 6, wall splicing nodes 7 and bottom connecting nodes 8, wherein a plurality of structural beams 1 and a plurality of structural columns 2 are connected to form a main structure, the main structure is a frame structure or other common structural forms, the main structure is connected with the precast concrete wall body 3 through the upper connecting node 4, the horizontal springs 5 and the distributed sliding supports 6, and the precast concrete wall body 3 is connected with the ground through the bottom connecting nodes 7.
As shown in fig. 3 to 5, the precast concrete wall 3 is composed of longitudinal distributing ribs 31, transverse distributing ribs 32 and concrete 33, the longitudinal distributing ribs 31 and the transverse distributing ribs 32 are steel bars with standard specifications, the labels and the dimensions are selected according to design convention, the longitudinal distributing ribs 31 and the transverse distributing ribs 32 are respectively arranged at equal intervals along the length and the height direction of the precast concrete wall 3, two or more layers are arranged according to the thickness of the precast concrete wall 3, the requirement of a concrete protective layer is met, concrete 33 is arranged between each layer, a plurality of holes are formed along the length direction of the precast concrete wall 3 according to weight requirements, the hollow wall is designed, the weight of the precast concrete wall 3 is adjusted by filling objects in the holes, and the precast concrete wall 3 is connected through wall splicing nodes 7.
As shown in fig. 4, the wall splicing node is composed of a pre-buried tie bar 71, a grouting hole 72 and an embedded wall 73, wherein the embedded wall 73 is a convex part of the precast concrete wall 3 and is used for being embedded into a corresponding groove part of the upper precast concrete wall 3, the grouting hole 72 is arranged in the precast concrete wall 3, the lower half part of the pre-buried tie bar 71 is precast and cast in situ in the precast concrete wall 3, and the upper half part of the pre-buried tie bar is inserted into the grouting hole 72 of the upper precast concrete wall 3 and mortar is injected through the grouting hole 72.
As shown in fig. 5, the grouting holes 72 are in an inverted L shape, the vertical portions of which are used for inserting the pre-buried tie bars 71, and the horizontal portions of which are used for grouting the equal-strength mortar.
As shown in fig. 3, the upper connecting node 4 is composed of a top beam 41, a suspension rail 42, a suspension pulley 43, a top wheel shaft 44, suspension cladding concrete 45 and a suspension embedded steel plate 46, two ends of the top beam 41 are fixedly connected with the main body structure, the suspension rail 42 is welded on the lower flange of the top beam 41, the lower half part of the suspension embedded steel plate 46 is embedded in the precast concrete wall body 3, the upper half part is wrapped by the suspension cladding concrete 45, and the suspension pulley 43 is connected with the suspension embedded steel plate 46 through the top wheel shaft 44 and is used for bearing a part of gravity of the precast concrete wall body 3 and rolling along the suspension rail 42.
The top beam 41 is welded with H-shaped steel or an I-shaped section and is provided with corresponding stiffening rib plates, and a small gap is kept between the lower end of the suspension rail 42 and the top end of the precast concrete wall body 3.
As shown in fig. 6, the horizontal spring 5 is composed of a spring 51 and a sleeve 52, the rigidity and the number of the spring 51 can be obtained by conventional calculation according to the tuning frequency and the mass of the precast concrete wall, two ends of the sleeve 52 are respectively connected with the precast concrete wall 3 and the main structure, and the spring 51 is arranged outside the sleeve 52 and used for limiting the deformation direction of the spring 51 and avoiding overlarge accidental shaking out of the plane.
The distributed sliding support 6 is composed of an upper sliding support 61, a lower sliding support 62 and a sliding layer 63, the upper sliding support 61 is connected to the precast concrete wall 3, the lower sliding support 62 is connected to the main structure, in this embodiment, the upper sliding support 61 is in the form of an inverted bracket, the upper sliding support is connected with the precast concrete wall 3 through a wall embedded part bolt, the lower sliding support 62 is in the form of a bracket, the lower sliding support is just connected with the main structure through welding or a bolt, the sliding layer 63 is slidably arranged between the upper sliding support 61 and the lower sliding support 62, and the sliding layer 63 is a smooth sliding layer or a sliding layer with a certain friction force, so that the precast concrete wall 3 is kept fixed during small-amplitude vibration.
As shown in fig. 5, the bottom connecting node 8 is composed of a wheel-receiving wall 81, a limit side plate 82, a bottom pulley 83, a bottom wheel shaft 84, a damper 85 and a fixed node 86, the wheel-receiving wall 81 is also a prefabricated reinforced concrete member, the wheel-receiving wall 81 is connected with the prefabricated concrete wall 3 through the wall splicing node 7, the bottom wheel shaft 84 is embedded in a groove at the bottom of the wheel-receiving wall 81, the bottom pulley 83 is rotatably mounted on the bottom wheel shaft 84, the lower edge of the bottom pulley 83 is in contact with the ground for bearing part of the weight of the prefabricated concrete wall 3 and rolling on the ground, the damper 85 can adopt a viscous fluid damper or other types of dampers according to calculation selection, two ends of the damper 85 are hinged with the fixed node 86 and the wheel-receiving wall 81 respectively, the fixed node 86 is fixedly connected with the ground, and the limit side plate 82 is fixed on the ground and arranged outside the wheel-receiving wall 81.
The precast concrete wall body 3 is freely arranged in a sliding mode through the upper connecting node 4, the distributed sliding support 6 and the bottom connecting node 8, a mass unit is provided, the horizontal spring 5 provides rigidity, the damper 85 provides grounding damping, the upper connecting node 4, the distributed sliding support 6 and the bottom connecting node 8 jointly bear the mass of the precast concrete wall body 3, a damping grounding type vibration absorber is formed, and earthquake input energy is dissipated.
The following details the implementation steps of the invention when specifically installed and used in combination with the above technical scheme and the accompanying drawings:
1) According to the design and construction requirements, finishing working procedures of erecting templates, binding longitudinal distributing ribs 31, transverse distributing ribs 32, hooping, pouring concrete 33, curing and the like in a factory to manufacture a precast concrete wall 3; wherein, the hanging embedded steel plate 46 of the upper connecting node 4 is embedded in the top precast concrete wall body 3, and the hanging outsourcing concrete 45 is poured.
2) Machining a top beam 41, a suspension rail 42, a suspension pulley 43 and a top wheel axle 44 in the upper connection node 4, wherein the suspension rail 42 and the top beam 41 are welded; the method comprises the steps of manufacturing templates of the wheel connecting wall 81 of the bottom node 8, binding reinforcing steel bars, pouring concrete and curing, and simultaneously connecting the bottom pulley 83 with the wheel connecting wall 81 through a bottom wheel shaft 84.
3) The limiting side plate 82 and the fixing node 86 are fixedly connected to the ground.
4) The lower sliding support 62 is firstly installed on the structural column 2 at the structural site, and the two ends of the top cross beam 41 are connected to the main structure; assembling the precast concrete wall body 3, firstly inserting an embedded wall body 73 on the lower wall body into the upper wall body, and injecting mortar through a grouting hole 72; the wheel-receiving wall 81 is connected to the precast concrete wall 3 by the same method; the upper sliding support 61 is mounted on the precast concrete wall 3 by pre-buried bolts of the wall.
5) The precast concrete wall body 3 is integrally hoisted, an upper sliding support 61 connected with the precast concrete wall body 3 is placed on a lower sliding support 62, a sliding layer 63 is processed before installation, and a temporary support is properly arranged.
6) The horizontal spring 5 is installed by bolting, the top axle 44 is inserted into the suspension cladding concrete 45 and the suspension pre-buried steel plate 46, and the suspension pulley 43 is installed.
7) And after the installation is finished, removing the temporary support.
Principles of the invention
In the invention, a mass unit is formed by a precast concrete wall body 3, a horizontal spring 5 is a rigidity unit, a damper 85 is a damping unit, and a damping grounding type dynamic vibration absorber is formed; when in vibration, the precast concrete wall body 3 provides enough rigidity and bearing capacity, so that the whole wall body is integrated, the mass of the precast concrete wall body is born together through the distributed sliding support 6, the upper connecting node 4 and the bottom connecting node 8, and the upper connecting node 4 and the bottom connecting node 8 limit the precast concrete wall body 3 to topple over, so that the precast concrete wall body can horizontally slide; when the building structure is subjected to loads such as wind and earthquake, lateral vibration occurs, the precast concrete wall 3 reversely vibrates due to the principle of tuning resonance, part of vibration energy is transferred to the damper 85 in the tuning mass damping wall, and the transferred vibration energy is consumed, so that the vibration response of the structure is reduced; meanwhile, due to the rigidity of the precast concrete wall body 3 itself, the distribution pattern of the displacement angle between the structural layers can be changed.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a damping ground connection formula reinforced concrete tuning mass damping wall, includes structural beam (1), structure post (2), precast concrete wall body (3), go up connected node (4), horizontal spring (5), distribution sliding support (6), wall body concatenation node (7) and bottom connected node (8), characterized in that a plurality of structural beam (1) and a plurality of structure post (2) are connected and are constituteed the main structure, connect through last connected node (4), horizontal spring (5) and distribution sliding support (6) respectively between main structure and precast concrete wall body (3), precast concrete wall body (3) are connected with ground through bottom connected node (7), distribution sliding support (6) are by last sliding support (61), lower sliding support (62) and sliding layer (63) are constituteed, last sliding support (61) are connected on precast concrete wall body (3), lower sliding support (62) are connected on the main structure, sliding layer (63) slidingly set up between last sliding support (61) and lower sliding support (62), sliding layer (63) are for certain horizontal friction profile (31) and concrete (33) are distributed layer (33), the longitudinal distributing ribs (31) and the transverse distributing ribs (32) are respectively and equidistantly arranged along the length direction and the height direction of the precast concrete wall body (3), two or more layers of concrete (33) are arranged between each layer according to the thickness of the precast concrete wall body (3), a plurality of holes are formed along the length direction of the precast concrete wall body (3), the weight of the precast concrete wall body (3) is regulated by filling objects in the holes, the precast concrete wall body (3) is connected through wall splicing nodes (7), a bottom connecting node (8) consists of a wheel-receiving wall body (81), a limiting side plate (82), a bottom pulley (83), a bottom wheel shaft (84), a damper (85) and a fixed node (86), the wheel-receiving wall body (81) is connected with the precast concrete wall body (3) through the wall splicing nodes (7), the bottom wheel shaft (84) is embedded in a bottom groove of the wheel-receiving wall body (81), the bottom pulley (83) is rotatably arranged on the bottom wheel shaft (84), the lower edge of the bottom pulley (83) is in contact with the ground, the lower edge of the bottom pulley (83) is used for bearing part of the ground, the ground surface is in rolling contact with the ground, the two ends of the precast concrete wall body (81) are fixedly connected with the ground surface nodes (86), the two ends of the precast concrete wall body (81) are fixedly connected with the damping nodes (81) respectively, the limiting side plate (82) is fixed on the ground and arranged on the outer side of the wheel-receiving wall body (81).
2. The assembled reinforced concrete tuned mass damping wall of claim 1, wherein the wall body splicing node is composed of a pre-buried dowel (71), a grouting hole (72) and an embedded wall body (73), the embedded wall body (73) is a protruding portion of the precast concrete wall body (3) and is used for being embedded into a corresponding groove portion of the upper precast concrete wall body (3), the grouting hole (72) is formed in the precast concrete wall body (3), the lower half portion of the pre-buried dowel (71) is precast and cast in the precast concrete wall body (3), and the upper half portion of the pre-buried dowel is inserted into the grouting hole (72) of the upper precast concrete wall body (3) and mortar is injected through the grouting hole (72).
3. The damping grounding type fabricated reinforced concrete tuning mass damping wall according to claim 1, wherein the grouting holes (72) are in an inverted L shape, vertical portions of which are used for inserting pre-buried dowel bars (71), and horizontal portions of which are used for pouring equal-strength mortar.
4. The damping grounding type fabricated reinforced concrete tuning mass damping wall according to claim 1, wherein the upper connecting node (4) is composed of a top beam (41), a suspension rail (42), a suspension pulley (43), a top wheel shaft (44), suspension cladding concrete (45) and suspension embedded steel plates (46), two ends of the top beam (41) are fixedly connected with a main body structure, the suspension rail (42) is welded to a lower flange of the top beam (41), a lower half part of the suspension embedded steel plates (46) is embedded in the precast concrete wall (3), an upper half part of the suspension embedded steel plates is wrapped by the suspension cladding concrete (45), and the suspension pulley (43) is connected with the suspension embedded steel plates (46) through the top wheel shaft (44) and is used for bearing a part of gravity of the precast concrete wall (3) and rolling along the suspension rail (42).
5. The assembled reinforced concrete tuned mass damping wall with the grounded damping according to claim 4, wherein the top cross beam (41) is welded with H-shaped steel or I-shaped cross section and is provided with corresponding stiffening rib plates, and the lower end of the suspension rail (42) maintains a tiny gap with the top end of the precast concrete wall body (3).
6. The damping grounding type assembled reinforced concrete tuned mass damping wall according to claim 1, wherein the horizontal spring (5) is composed of a spring (51) and a sleeve (52), two ends of the sleeve (52) are respectively connected with the precast concrete wall body (3) and the main structure, and the spring (51) is arranged on the outer side of the sleeve (52) and used for limiting the deformation direction of the spring (51) and avoiding overlarge accidental shaking out of a plane.
7. The damping grounding type fabricated reinforced concrete tuned mass damping wall according to claim 1, wherein the precast concrete wall body (3) is freely slidably arranged through an upper connecting node (4), a distributed sliding support (6) and a bottom connecting node (8) and provides a mass unit, the horizontal spring (5) provides rigidity, the damper (85) provides grounding damping, and the upper connecting node (4), the distributed sliding support (6) and the bottom connecting node (8) jointly bear the mass of the precast concrete wall body (3) to form a damping grounding type absorber for dissipating seismic input energy.
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| CN201910145026.8A CN109898691B (en) | 2019-02-27 | 2019-02-27 | Damping grounding type fabricated reinforced concrete tuned mass damping wall |
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| CN201910145026.8A CN109898691B (en) | 2019-02-27 | 2019-02-27 | Damping grounding type fabricated reinforced concrete tuned mass damping wall |
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| CN112196178A (en) * | 2020-09-29 | 2021-01-08 | 西安长庆科技工程有限责任公司 | Box plate structure fast-assembly wall and construction method |
| CN112196132A (en) * | 2020-10-10 | 2021-01-08 | 衡阳远大建筑工业有限公司 | Slidable assembled wall |
| CN113530339B (en) * | 2020-10-26 | 2022-05-20 | 长江师范学院 | Cast-in-place assembly structure for construction of building damping wall |
| CN113494204B (en) * | 2020-10-26 | 2022-09-27 | 长江师范学院 | Building shock attenuation wall body |
| CN112144688B (en) * | 2020-10-30 | 2023-04-14 | 中国地震局工程力学研究所 | Double-sided shearing type square steel tube damper and manufacturing method |
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