CN114941398A - Detachable steel concrete composite beam with self-resetting device - Google Patents
Detachable steel concrete composite beam with self-resetting device Download PDFInfo
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- CN114941398A CN114941398A CN202210631223.2A CN202210631223A CN114941398A CN 114941398 A CN114941398 A CN 114941398A CN 202210631223 A CN202210631223 A CN 202210631223A CN 114941398 A CN114941398 A CN 114941398A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/023—Separate connecting devices for prefabricated floor-slabs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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Abstract
The invention relates to the technical field of building structures, in particular to a detachable steel concrete composite beam with a self-resetting device, which comprises an I-shaped steel beam, wherein a prefabricated reinforced concrete slab is arranged on the upper surface of the I-shaped steel beam, a connecting assembly is arranged between the I-shaped steel beam and the prefabricated reinforced concrete slab, and the connecting assembly can consume energy during earthquake vibration through self centralized damage when an earthquake occurs, so that other structures of the composite beam are prevented from being damaged; the combined beam is simple and ingenious in structure and stable and reliable in use performance, the assembling performance and the repeated use detachability of the combined beam in the construction process are realized, the economic benefit of construction and maintenance of building engineering is improved, and the combined beam belongs to a green building and is very suitable for modern industrialized buildings.
Description
Technical Field
The invention relates to the technical field of building structures, in particular to a detachable steel reinforced concrete composite beam with a self-resetting device.
Background
The construction industry in China is rapidly developing towards industrialization, and reorganizing the construction industry in an industrialization mode is an important mode for improving labor efficiency and building quality; the combined structure is widely applied to the construction neighborhood due to the advantages of convenience in construction, reasonable utilization of material performance and the like, the steel and concrete combined structure is gradually and widely applied and developed in engineering practice, the concrete combined beam in the steel and concrete combined structure has two construction modes of prefabricating and cast-in-place, the prefabricating mode can greatly reduce field operation, the production efficiency can be improved, and the combined structure is green and environment-friendly.
However, most of the existing steel and concrete composite structures are welded, the construction difficulty of the mode is high, the engineering quality is not easy to control, the assembling performance and the repeated use detachability of the composite beam in the construction process are difficult to realize, especially the use function of the composite beam cannot be quickly recovered after the composite beam is damaged by shock, and the overall economic benefit of the building engineering is adversely affected.
Therefore, the design of the reusable combination beam with assemblability and detachability and the structure capable of quickly recovering the use function of the combination beam after an earthquake have very important significance.
In summary, it is an urgent need to solve the above-mentioned problems by those skilled in the art to design a composite beam capable of being quickly disassembled and reused, and a structure capable of quickly recovering the use function of the composite beam after an earthquake.
Disclosure of Invention
In order to solve the problems that the assembly and the repeated use detachability of the composite beam in the construction process are difficult to realize in the prior art, and particularly the service function of the composite beam cannot be quickly recovered after the composite beam is damaged by earthquake, the invention provides the detachable steel concrete composite beam with the self-resetting device.
The technical scheme of the invention is as follows:
the invention provides a detachable steel concrete composite beam with a self-resetting device, which comprises an I-shaped steel beam, wherein a prefabricated reinforced concrete slab is arranged on the upper surface of the I-shaped steel beam, a connecting assembly is arranged between the I-shaped steel beam and the prefabricated reinforced concrete slab, the connecting assembly can enable the I-shaped steel beam and the prefabricated reinforced concrete slab to form detachable fixed connection, the connecting assembly can consume energy during earthquake vibration through self centralized damage during an earthquake, so that other structures of the composite beam are prevented from being damaged, the self-resetting spring device is arranged between the connecting assembly and the I-shaped steel beam, the self-resetting spring device can ensure the connection reliability of the connecting assembly during fixed connection, and the self-resetting spring device can enable the connecting assembly and the prefabricated reinforced concrete slab to be quickly separated during detachment.
Furthermore, the connecting assembly comprises a prefabricated reinforced concrete plate, a mounting hole is formed in the joint of the prefabricated reinforced concrete plate and the I-shaped steel beam, a concrete insert block attached to the inner side face of the mounting hole is installed in a matched mode corresponding to the inner side face of the mounting hole, a step hole penetrating through the concrete insert block is formed in the middle of the concrete insert block, a first through hole is formed in the upper surface of the I-shaped steel beam corresponding to the step hole, a connecting bolt is arranged in the step hole and the first through hole in a penetrating mode, and a locking nut screwed with the connecting bolt is arranged on the lower end of the connecting bolt and located on the outer portion of the lower surface of the I-shaped steel beam.
Furthermore, the mounting hole is structurally shaped as a round hole with a flared conical surface on the inner side surface; the outer shape of the concrete insert block is designed to be an inverted truncated cone corresponding to the flared conical surface of the mounting hole, and an elastic material cushion layer is arranged between the outer side surface of the concrete insert block and the inner side surface of the mounting hole.
And furthermore, a bolt cushion block is sleeved at the outer side of the upper end part of the connecting bolt, and the end surface of the bolt cushion block is attached to the step surface of the step hole.
Still further, from reset spring device includes I-shaped steel beam, the upper surface of I-shaped steel beam is equipped with the unable adjustment base that can dismantle fixed connection with it, unable adjustment base's upper surface is located its center and is equipped with fixed connection's locating piece with it, the outside cooperation of locating piece is installed the spring, the lower extreme of spring and the outside fixed connection of locating piece, the outside cover of spring is equipped with the spring sleeve with unable adjustment base fixed connection, the outside of spring sleeve is close to its upper end portion and is equipped with sliding sleeve with it sliding connection, sliding sleeve's upper end medial surface and the corresponding laminating of upper end of spring.
Still further, from reset spring device includes the I-shaped girder steel, the upper surface of I-shaped girder steel is equipped with the unable adjustment base that can dismantle fixed connection with it, unable adjustment base's upper surface is located its center and is equipped with fixed connection's locating piece with it, the outside cooperation of locating piece is installed the spring, the lower extreme of spring and the outside fixed connection of locating piece, the outside cover of spring is equipped with the spring sleeve with unable adjustment base fixed connection, the outside of spring sleeve is close to its upper end portion and is equipped with sliding sleeve with it sliding connection's sliding sleeve, be equipped with the guide block with spring sleeve sliding connection between sliding sleeve's the upper end medial surface and the upper end of spring, the up end of guide block and sliding sleeve's upper end medial surface fixed connection, the lower terminal surface of guide block corresponds the laminating with the upper end of spring, the lateral surface of guide block and the medial surface cooperation sliding connection of spring sleeve.
Furthermore, a second through hole is formed in the outer side of the fixing base, which is located on the outer side of the spring sleeve, the second through hole is located on the outer side of the spring sleeve, and a screw capable of being fixedly locked and connected with the upper surface of the I-shaped steel beam is arranged inside the second through hole.
Furthermore, the upper end surface of the sliding sleeve is provided with an anti-skid rubber pad fixedly connected with the sliding sleeve.
And further, the elastic material cushion layer is fixedly bonded with the outer side surface of the concrete insert block.
The invention achieves the following beneficial effects:
the prefabricated reinforced concrete slab detachably and fixedly connected with the I-shaped steel beam is arranged on the upper surface of the I-shaped steel beam, the I-shaped steel beam is detachably connected with the prefabricated reinforced concrete slab in a threaded manner, and the threaded connection has the advantages of simple structure, reliable connection, convenience in assembly and disassembly and adjustable pretightening force, so that the construction cost is reduced on the premise of ensuring the reliable connection, and the I-shaped steel beam and the prefabricated reinforced concrete slab are detachably and fixedly connected, so that foundation guarantee is provided for realizing the assembly and disassembly of the combined beam in the construction process.
The mounting hole of the prefabricated reinforced concrete slab is structurally designed into a round hole with a flared conical surface on the inner side, the round hole is simple in machining and manufacturing process, stress can be uniformly applied in the working process, damage caused by stress concentration during extreme load is avoided, the flared conical surface is convenient for a mold to be taken out more conveniently and easily during machining and manufacturing, self-centering during concrete insert block mounting is facilitated, the concrete insert block mounting process in the using process can be simplified, and the mounting working efficiency is improved.
The outer side surface of the concrete insert block is provided with the elastic material cushion layer, the elastic material cushion layer can effectively prevent the concrete insert block from being damaged due to collision in the carrying and transporting processes, when the concrete insert block is used, the outer side surface of the concrete insert block and the inner side surface of the mounting hole can be elastically connected, the concrete insert block can be prevented from being damaged or even damaged due to rigid contact between the outer side surface of the concrete insert block and the inner side surface of the mounting hole in the mounting process, and the buffering and shock absorption capacity of a building structure can be improved.
The upper end part of the connecting bolt can be accommodated in the stepped hole in the using process of the stepped hole in the middle of the concrete insert block, so that the upper end part of the connecting bolt can be prevented from being directly exposed to influence the integral flatness of the surface of the prefabricated reinforced concrete plate, and the upper end part of the connecting bolt is effectively protected from being damaged due to collision with other external objects in the construction process, and even the concrete insert block is abnormally broken or damaged; the bolt cushion block can effectively increase the stress area between the upper end of the connecting bolt and the step surface of the step hole, so that the damage of the concrete insert block caused by too large pressure due to too small stress area between the upper end of the connecting bolt and the step surface of the step hole is avoided, and the design further improves the service performance of the embodiment.
The self-reset spring device is arranged in the mounting hole of the prefabricated reinforced concrete slab and positioned between the upper surface of the I-shaped steel beam and the lower surface of the concrete insert block, the reset spring device can enable the upper surface of the I-shaped steel beam and the lower surface of the concrete insert block to be in elastic connection, when the connecting bolt is locked through the locking nut, the axial locking force of the locking nut and the connecting bolt can be increased through the elastic force generated by the reset spring device, the locking nut and the connecting bolt can be effectively prevented from loosening, and when the locking nut is loosened, the elastic force generated by the reset spring device can act on the lower surface of the concrete insert block to push the concrete insert block upwards, so that the concrete insert block can be quickly pushed out in the dismounting process; the design realizes that the combined beam has the function of quick disassembly and assembly in the use process, can solve the problem that the disassembly of the finished concrete insert block or the intensively damaged concrete insert block is difficult due to deformation, damage and the like, is very convenient for the disassembly and replacement of the concrete insert block, is also beneficial to the disassembly and the repeated use of the combined beam in the normal use stage, and further improves the working efficiency of the integral construction.
In conclusion, the combined beam has the advantages of simple and ingenious structure and stable and reliable use performance, has the functions of convenient and quick assembly and disassembly, can quickly recover the use function of the combined beam after an earthquake, realizes the assembly and repeated use detachability of the combined beam in the construction process, and improves the economic benefits of construction and maintenance of building engineering.
Drawings
Fig. 1 is an overall structural schematic diagram of a first embodiment of the present invention; FIG. 2 is a schematic three-dimensional view of a first embodiment of a self-resetting spring device; FIG. 3 is a sectional view taken along line A-A in FIG. 2; FIG. 4 is a schematic view showing the overall structure of a second embodiment of the present invention; FIG. 5 is a schematic three-dimensional view of a second embodiment of a self-resetting spring device; fig. 6 is a schematic view of the structure of fig. 5 cut along the direction B-B.
Detailed Description
To facilitate an understanding of the invention for those skilled in the art, a specific embodiment thereof will be described below with reference to the accompanying drawings.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present application, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
The first embodiment of the invention is shown in fig. 1 to 3, and the invention provides a detachable steel concrete composite beam with a self-resetting device, which comprises an i-shaped steel beam 2, wherein a prefabricated reinforced concrete slab 1 detachably and fixedly connected with the i-shaped steel beam 2 is arranged on the upper surface of the i-shaped steel beam 2, the detachable connection mode between the i-shaped steel beam 2 and the prefabricated reinforced concrete slab 1 is preferably designed to be threaded connection, because the threaded connection has the advantages of simple structure, reliable connection, convenient assembly and disassembly and adjustable pretightening force, the construction cost is reduced on the premise of ensuring the reliable connection, and the i-shaped steel beam 2 and the prefabricated reinforced concrete slab 1 are detachably and fixedly connected, so that foundation guarantee is provided for the assembly and the disassembly of the composite beam in the construction process.
As shown in figure 1, a mounting hole is arranged at the joint of a precast reinforced concrete slab 1 and an I-shaped steel beam 2, the structural shape of the mounting hole can be designed into a round hole, a square hole or other shapes which are convenient to mount and process, in order to ensure the stable and reliable connection between the prefabricated reinforced concrete slab 1 and the i-shaped steel beam 2, the inner side of the mounting hole may be provided with a step surface, a conical surface, or a step with a conical surface, in this embodiment, the structural shape of the mounting hole is preferably designed to be a round hole with a flared conical surface on the inner side, because the processing and manufacturing process of the round hole is simple, the round hole can be uniformly stressed in the working process, the damage caused by stress concentration in the limit load is avoided, meanwhile, the flaring-shaped conical surface is convenient for taking out the die more conveniently and easily during processing and manufacturing, is also beneficial to self-centering during installation, and can simplify the installation process in the use process.
As shown in fig. 1, the inner side surface of the mounting hole is provided with a concrete insert 3 which is fitted with the inner side surface of the mounting hole in a matching manner and corresponds to the conical surface, the flared conical surface of the mounting hole corresponding to the external shape of the concrete insert 3 is designed into an inverted truncated cone, and the concrete insert 3 can be automatically fitted with the inner side surface of the mounting hole when being placed in the mounting hole and locked downwards by external force when in use, so that the positioning process during mounting can be omitted, the process difficulty during mounting is reduced, and the mounting work efficiency is improved.
As shown in fig. 1, an elastic material cushion layer 4 is arranged between the outer side surface of the concrete insert 3 and the inner side surface of the mounting hole, and the elastic material cushion layer 4 can be made of rubber materials or other elastic materials, such as latex, silica gel and the like; the elastic material cushion layer 4 can be fixedly bonded with the inner side surface of the mounting hole and can also be fixedly bonded with the outer side surface of the concrete insert 3, the elastic material cushion layer 4 can be fixedly bonded on the outer side surface of the concrete insert 3 and the inner side surface of the mounting hole at the same time, the elastic material cushion layer 4 is preferably fixedly bonded on the outer side surface of the concrete insert 3 in the embodiment, so that the concrete insert 3 can be effectively prevented from being collided and damaged in the carrying and transporting process before being used, when the concrete insert is used, the outer side surface of the concrete insert 3 can be elastically connected with the inner side surface of the mounting hole, the concrete insert 3 can be prevented from being damaged or even damaged due to rigid contact between the outer side surface of the concrete insert 3 and the inner side surface of the mounting hole in the mounting process, and the shock absorption capacity of a building structure can be increased.
As shown in fig. 1, a stepped hole penetrating through the concrete insert block 3 is formed in the middle of the concrete insert block, the stepped surface of the stepped hole is close to the upper side surface of the concrete insert block 3, a first through hole is formed in the upper surface of the i-shaped steel beam 2 corresponding to the stepped hole, a connecting bolt 5 penetrates through the stepped hole and the first through hole, a bolt cushion block 6 is sleeved on the upper end of the connecting bolt 5 at the outer side of the connecting bolt, the end surface of the bolt cushion block 6 is attached to the stepped surface of the stepped hole, and a locking nut screwed with the connecting bolt 5 is arranged at the lower end of the connecting bolt 5 at the outer part of the lower surface of the i-shaped steel beam 2; the design adopts bolt connection, has the advantages of simple structure, reliable connection, convenient assembly and disassembly and adjustable pretightening force, and the stepped hole can accommodate the upper end part of the connecting bolt 5 in the stepped hole in the using process, thereby not only preventing the upper end part of the connecting bolt 5 from being directly exposed and influencing the integral flatness of the surface of the prefabricated reinforced concrete plate 1, but also effectively protecting the upper end part of the connecting bolt 5 from colliding with other external objects to damage in the construction process and even leading the concrete insert block 3 to be abnormally cracked or damaged; the bolt cushion block 6 can effectively increase the stress area between the upper end part of the connecting bolt 5 and the step surface of the step hole, so that the damage of the concrete insert block 3 caused by overlarge pressure due to the fact that the stress area between the upper end part of the connecting bolt 5 and the step surface of the step hole is too small is avoided, and the use performance of the embodiment is further guaranteed by the design.
As shown in fig. 1, a self-reset spring device 7 is arranged inside the mounting hole of the prefabricated reinforced concrete slab 1 and between the upper surface of the i-shaped steel beam 2 and the lower surface of the concrete insert 3, the reset spring device 7 can be fixedly mounted on the lower surface of the concrete insert 3 or the upper surface of the i-shaped steel beam 2, and in the embodiment, the reset spring device 7 is preferably fixedly mounted on the upper surface of the i-shaped steel beam 2 through a screw, so that the independent production and manufacture of the reset spring device 7 are facilitated, and the replacement performance is achieved; when the reset spring device 7 is used, elastic connection can be formed between the upper surface of the I-shaped steel beam 2 and the lower surface of the concrete insert block 3, when the connecting bolt 5 is locked through the locking nut, the axial locking force between the locking nut and the connecting bolt 5 can be increased through the elastic force generated by the reset spring device 7, the locking nut and the connecting bolt 5 can be effectively prevented from loosening, and when the locking nut is loosened, the elastic force generated by the reset spring device 7 can act on the lower surface of the concrete insert block 3 to upwards push the concrete insert block 3, so that the concrete insert block 3 can be quickly pushed out in the dismounting process, the quick-mounting and dismounting function is achieved in the using process, and the working efficiency of integral construction is further improved.
As shown in fig. 2 and 3, the return spring device 7 includes a fixed base 7-6, a positioning block 7-5 fixedly connected with the fixed base 7-6 is arranged at the center of the upper surface of the fixed base 7-6, a spring 7-4 is installed at the outer side of the positioning block 7-5 in a matching manner, the lower end of the spring 7-4 is fixedly connected with the outer side of the positioning block 7-5, a spring sleeve 7-3 fixedly connected with the fixed base 7-6 is sleeved on the outer side of the spring 7-4, and the spring sleeve 7-3 can effectively prevent the spring 7-4 from being directly exposed to the outside in the working process, thereby preventing the moisture or other substances in the air from corroding the spring 7-4, and ensuring the service performance and the service life of the spring 7-4.
As shown in fig. 2 and 3, a sliding sleeve 7-2 in sliding connection with the outer side of the spring sleeve 7-3 is arranged close to the upper end of the spring sleeve, an anti-skid rubber pad 7-1 fixedly connected with the sliding sleeve 7-2 is arranged on the upper end face of the sliding sleeve 7-2, and the inner side face of the upper end of the sliding sleeve 7-2 is correspondingly attached to the upper end of the spring 7-4; in the use process, the upper end face of the sliding sleeve 7-2 is correspondingly attached to the lower surface of the concrete insert block 3 through the anti-skid rubber pad 7-1, the anti-skid rubber pad 7-1 can prevent the upper end face of the sliding sleeve 7-2 from being directly contacted and attached to the lower surface of the concrete insert block 3, the surface damage caused by rigid contact between the upper end face of the sliding sleeve 7-2 and the lower surface of the concrete insert block 3 is avoided, the sliding between the upper end face of the sliding sleeve 7-2 and the lower surface of the concrete insert block 3 in the use process is also effectively prevented, and the stability of the concrete insert block is improved in the use process.
As shown in fig. 2 and 3, a second through hole is formed in the fixing base 7-6, which is located on the outer side of the spring sleeve 7-3, the position of the second through hole is preferably designed on the outer side four sides which are centrosymmetric with the spring sleeve 7-3, and a screw 7-7 capable of being fixedly locked and connected with the upper surface of the i-shaped steel beam 2 is arranged in the second through hole; in the using process, the self-reset spring device 7 can be integrally and fixedly arranged on the upper surface of the I-shaped steel beam 2 through the second through holes by using the screws 7-7, the four locking screws on the four sides of the outer side which are centrosymmetric with the spring sleeve 7-3 can enable the self-reset spring device 7 to be integrally and stably arranged on the upper surface of the I-shaped steel beam 2, and the self-reset spring device 7 can have the detachable and replaceable functions by adopting the locking mode of the screws 7-7, so that the universality of the invention is improved.
As shown in figures 4, 5 and 6, the second embodiment of the invention is different from the first embodiment in that a guide block 7-8 which is connected with a spring sleeve 7-3 in a sliding manner is arranged between the inner side surface of the upper end of a sliding sleeve 7-2 and the upper end of a spring 7-4, the upper end surface of the guide block 7-8 is fixedly connected with the inner side surface of the upper end of the sliding sleeve 7-2, the lower end surface of the guide block 7-8 is correspondingly attached to the upper end of the spring 7-4, the outer side surface of the guide block 7-8 is connected with the inner side surface of the spring sleeve 7-3 in a matching and sliding manner, the guide block 7-8 can effectively guide the spring 7-4 to push the sliding sleeve 7-2 to be more stably carried out on the outer side of the spring sleeve 7-3, the design structure is simple, and the outer side surface of the guide block 7-8 is matched and slid with the inner side surface of the spring sleeve 7-3 to be combined with the spring sleeve 7 The sliding connection between the outer side of the sliding sleeve (7-3) and the inner side of the sliding sleeve (7-2) makes the sliding sleeve (7-2) more stable and reliable during sliding, and further increases the stability of the invention during use.
In summary, when the prefabricated reinforced concrete slab is used, the prefabricated reinforced concrete slab 1 is firstly erected on the upper surface of the i-shaped steel beam 2, the concrete insert 3 is correspondingly placed in the mounting hole, the connecting bolt 5 is inserted into the step hole in the middle of the concrete insert 3, the lower end of the connecting bolt 5 penetrates through the first through hole in the upper surface of the i-shaped steel beam 2, the locking nut is screwed at the lower end of the connecting bolt 5, the connecting bolt 5 is locked by rotating the locking nut through the wrench, the connecting bolt 5 presses the bolt cushion block 6 downwards through the upper end part of the connecting bolt, and the bolt cushion block 6 pushes the step surface of the concrete insert 3 downwards when pressing downwards, so that the concrete insert 3 is driven to be pressed downwards integrally, and the prefabricated reinforced concrete slab 1 and the i-shaped steel beam 2 are detachably and fixedly connected.
When an earthquake happens, the whole building can vibrate when being influenced by the earthquake, the vibration of the whole building can drive the prefabricated reinforced concrete plate 1 to vibrate, the prefabricated reinforced concrete plate 1 can extrude the concrete insert 3 through the single side of the mounting hole when vibrating, the concrete insert 3 can consume energy during the earthquake vibration through self concentrated damage when resisting the vibration of the prefabricated reinforced concrete plate 1, thereby avoiding other structures of the composite beam from being damaged, the design can realize the concentrated damage of the concrete insert 3 in the earthquake, the service function of the composite beam can be quickly recovered after the damaged concrete insert 3 is replaced after the earthquake, the composite beam belongs to a post-earthquake function recoverable component, the life and property safety of people can be effectively protected, and the service benefit of the whole life cycle of the building can be further improved.
When the damaged concrete insert 3 after an earthquake is replaced, only the locking nut needs to be unscrewed through the wrench, when the locking nut is loosened, the elastic force generated by the spring 7-4 in the reset spring device 7 can push the sliding sleeve 7-2 to slide upwards through the upper end part of the spring 7-4, and when the sliding sleeve 7-2 slides upwards, the concrete insert 3 can be pushed upwards, so that the concrete insert 3 is pushed out of the mounting hole, a worker can conveniently and quickly take out the damaged concrete insert 3 after the earthquake and replace the new concrete insert 3, the design realizes that the concrete insert 3 has a quick disassembly and assembly function in the using process, can solve the problem that the intact concrete insert 3 or the centrally damaged concrete insert 3 is difficult to disassemble due to deformation, damage and the like, and is very convenient for the disassembly and replacement of the concrete insert 3, the combined beam is also favorable for being detached and reused in the normal use stage, and the working efficiency of the whole construction is further improved.
In a word, the combined beam has the advantages of simple and ingenious structure and stable and reliable use performance, has the functions of convenient and quick assembly and disassembly, can quickly recover the use function of the combined beam after an earthquake, realizes the assembly and repeated use and disassembly of the combined beam in the construction process, improves the economic benefits of construction and maintenance of constructional engineering, belongs to green buildings, and is very suitable for modern industrialized buildings.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a can dismantle steel concrete composite beam who contains from resetting means which characterized in that: the novel steel beam assembly is characterized by comprising an I-shaped steel beam (2), a prefabricated reinforced concrete plate (1) is arranged on the upper surface of the I-shaped steel beam (2), a connecting assembly is arranged between the I-shaped steel beam (2) and the prefabricated reinforced concrete plate (1), the connecting assembly can enable the I-shaped steel beam (2) and the prefabricated reinforced concrete plate (1) to form detachable fixed connection, the connecting assembly can consume energy generated during earthquake vibration through self centralized damage during an earthquake, and therefore other structures of the composite beam are prevented from being damaged, a self-reset spring device is arranged between the connecting assembly and the I-shaped steel beam (2), the connecting assembly can be reliably connected through the self-reset spring device during fixed connection, and the connecting assembly can be quickly separated from the prefabricated reinforced concrete plate (1) during disassembly.
2. The detachable steel reinforced concrete composite beam containing the self-resetting device according to claim 1, characterized in that: coupling assembling include prefabricated reinforced concrete board (1), the mounting hole has been seted up with the junction of I-shaped girder steel (2) in prefabricated reinforced concrete board (1), concrete inserted block (3) of laminating with it is installed to the cooperation that the medial surface of mounting hole corresponds, set up in the middle of concrete inserted block (3) and run through its inside step hole, the upper surface of I-shaped girder steel (2) corresponds the step hole and has seted up first through-hole, connecting bolt (5) are worn to be equipped with in the inside of step hole and first through-hole, the lower tip of connecting bolt (5) is located the lower surface outside of I-shaped girder steel 2 and is equipped with the lock nut who closes soon with it.
3. The detachable steel reinforced concrete composite beam containing the self-resetting device according to claim 2, characterized in that: the mounting hole is structurally shaped as a round hole with a flared conical surface on the inner side surface; the outer shape of the concrete insert block (3) is designed to be an inverted truncated cone corresponding to the flared conical surface of the mounting hole, and an elastic material cushion layer (4) is arranged between the outer side surface of the concrete insert block (3) and the inner side surface of the mounting hole.
4. The detachable steel reinforced concrete composite beam containing the self-resetting device according to claim 2, characterized in that: the upper end part of the connecting bolt (5) is sleeved with a bolt cushion block (6) at the outer side, and the end face of the bolt cushion block (6) is attached to the step face of the step hole.
5. The detachable steel reinforced concrete composite beam containing the self-resetting device according to claim 1, characterized in that: the self-resetting spring device comprises an I-shaped steel beam (2), a fixing base (7-6) detachably and fixedly connected with the I-shaped steel beam is arranged on the upper surface of the I-shaped steel beam (2), a positioning block (7-5) fixedly connected with the fixing base is arranged in the center of the upper surface of the fixing base (7-6), a spring (7-4) is installed on the outer side of the positioning block (7-5) in a matched mode, the lower end of the spring (7-4) is fixedly connected with the outer side of the positioning block (7-5), a spring sleeve (7-3) fixedly connected with the fixing base (7-6) is sleeved on the outer side of the spring (7-4), a sliding sleeve (7-2) in sliding connection with the outer side of the spring sleeve (7-3) is arranged close to the upper end of the spring sleeve, and the inner side face of the upper end of the sliding sleeve (7-2) is correspondingly attached to the upper end of the spring (7-4).
6. The detachable steel reinforced concrete composite beam containing the self-resetting device according to claim 1, characterized in that: the self-resetting spring device comprises an I-shaped steel beam (2), a fixing base (7-6) detachably and fixedly connected with the I-shaped steel beam is arranged on the upper surface of the I-shaped steel beam (2), a positioning block (7-5) fixedly connected with the fixing base is arranged in the center of the upper surface of the fixing base (7-6), a spring (7-4) is installed on the outer side of the positioning block (7-5) in a matched mode, the lower end of the spring (7-4) is fixedly connected with the outer side of the positioning block (7-5), a spring sleeve (7-3) fixedly connected with the fixing base (7-6) is sleeved on the outer side of the spring (7-4), a sliding sleeve (7-2) connected with the spring sleeve in a sliding mode is arranged on the outer side of the spring sleeve (7-3) close to the upper end portion of the spring, and a sliding sleeve (7-3) is arranged between the inner side face of the upper end of the sliding sleeve (7-2) and the upper end portion of the spring (7-4) The upper end face of the guide block (7-8) is fixedly connected with the inner side face of the upper end of the sliding sleeve (7-2), the lower end face of the guide block (7-8) is correspondingly attached to the upper end part of the spring (7-4), and the outer side face of the guide block (7-8) is in matched sliding connection with the inner side face of the spring sleeve (7-3).
7. The detachable steel reinforced concrete composite beam containing the self-resetting device according to claim 5 or 6, characterized in that: the fixing base (7-6) is positioned on the outer side of the spring sleeve (7-3) and is provided with a second through hole, the second through hole is positioned on the outer side four sides which are in central symmetry with the spring sleeve (7-3), and a screw (7-7) which can be fixedly locked and connected with the upper surface of the I-shaped steel beam (2) is arranged inside the second through hole.
8. The detachable steel reinforced concrete composite beam containing the self-resetting device according to claim 1, characterized in that: the upper end surface of the sliding sleeve (7-2) is provided with an anti-skid rubber pad (7-1) fixedly connected with the sliding sleeve.
9. The detachable steel reinforced concrete composite beam containing the self-resetting device according to claim 3, characterized in that: the elastic material cushion layer (4) is fixedly bonded with the outer side surface of the concrete insert block (3).
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| CN114941398B (en) | 2023-08-04 |
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