CN115653339A - Prefabricated building reinforcing structure and assembling method thereof - Google Patents
Prefabricated building reinforcing structure and assembling method thereof Download PDFInfo
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- CN115653339A CN115653339A CN202211259800.6A CN202211259800A CN115653339A CN 115653339 A CN115653339 A CN 115653339A CN 202211259800 A CN202211259800 A CN 202211259800A CN 115653339 A CN115653339 A CN 115653339A
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Abstract
The invention relates to a prefabricated building reinforcing structure and an assembling method thereof, wherein the method comprises the following steps: step s1, pre-drilling a hole on a structural wall, and fixing a first supporting piece by using a first bolt; step s2, pre-drilling holes in the structural beam, and fixing a second supporting piece by using a second bolt; s3, relatively fixing the first support piece and the second support piece by using a connecting bolt; and step s4, matching the first fixing nut with the first fixing bolt and matching the second fixing nut with the second fixing bolt to fix the reinforcing member at the corresponding position between the first supporting member and the second supporting member. When each part of the reinforced structure is installed, the pretightening force of each bolt for fixing the part is adjusted in real time according to the installation condition of each part, and the installation stability of each part is effectively ensured, so that the whole reinforced structure can effectively support a building main body, and the reinforcing efficiency of the reinforced structure is further improved.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a prefabricated building reinforcing structure and an assembling method thereof.
Background
Building reinforcement is a branch of civil construction, and a large number of buildings which need technical transformation and storey addition because of production scale, process and the like updating exist in China every year and need reinforcement because of structure overload; meanwhile, with the improvement and change of the fortification standard along with the seismic requirement, the existing houses in many areas cannot meet the seismic requirement of new fortification, so that seismic reinforcement is needed. The formed building beam structure and the formed building column structure need to be well connected with the original components through newly added bearing components, so that the using function and the load bearing capacity requirements after transformation are met. Otherwise, if the stress performance does not meet the requirement, the safety performance of the building is difficult to guarantee, and even the great loss of life and property is caused.
In the current engineering construction process, the actual development construction progress requirement is more and more tight, and carrying out the structural transformation and need avoid producing the potential safety hazard, still need satisfy construction period and the demand of saving the cost simultaneously, just become the technical problem that awaits solution urgently, need improve this technique.
Chinese patent publication no: CN112761374B discloses a prefabricated building reinforced structure and an assembling method thereof, the structure includes a set of preset parts embedded in the joint of a structural wall and a structural beam in advance, the back of the preset parts is provided with a plurality of fixing bolts with barbs on the surface, the fixing bolts are embedded in the structural wall and the structural beam structure, the front of the preset parts is hinged with a structural rod capable of being turned over and unfolded, a plurality of structural stems are hinged between the structural rod and the preset parts, shells are fixed between the preset parts through bolt assemblies, the shells are filled with concrete, the connection between the structural wall and the structural beam is reinforced through concrete and metal shells, and the structural rod and the structural stem are wrapped with the concrete, so as to play a role in enhancing the strength of the concrete structure in the shells. Therefore, although the invention completes the reinforcement of the building, the parts can not be ensured to be tightly attached to the corresponding positions, and potential safety hazards exist.
Disclosure of Invention
Therefore, the invention provides a prefabricated building reinforcing structure which is used for overcoming the problem that the reinforcing efficiency of the reinforcing structure for buildings is low due to the fact that corresponding parts cannot be fixed at corresponding positions when the prefabricated building reinforcing structure is installed in the prior art.
In one aspect, the present invention provides a prefabricated building reinforcement structure, comprising:
the first support piece is provided with first connecting lugs on two sides respectively, and each connecting lug is provided with a first connecting hole; the first supporting piece is also provided with a plurality of vertically arranged first through holes; the end part of the first supporting piece is also provided with a first fixing hole;
the two sides of the second supporting piece are respectively provided with a second connecting lug, and each connecting lug is provided with a second connecting hole; a plurality of second through holes which are horizontally arranged are also formed in the second supporting piece; the end part of the second support piece is also provided with a second fixing hole;
the first supporting piece is fixed on the structural wall through the first through hole; the number of the first bolts is the same as that of the first through holes;
the second bolts are used for fixing the second supporting piece at a corresponding position on the structural beam through the corresponding second through holes respectively; the number of the second bolts is the same as that of the second through holes;
the connecting bolts are respectively used for enabling the first supporting piece and the second supporting piece to be relatively fixed through the corresponding first connecting holes and the corresponding second connecting holes and through the matching of connecting nuts corresponding to the connecting bolts;
the reinforcing member is arranged between the first support member and the second support member and used for forming a triangular structure with the first support member and the second support member; through holes are formed in the two ends of the reinforcing piece;
the first fixing bolt is used for fixing one ends of the first supporting piece and the reinforcing piece at corresponding positions through the corresponding through holes;
and the second fixing bolt is used for fixing the other ends of the second supporting piece and the reinforcing piece at corresponding positions through the corresponding through holes.
In another aspect, the present invention provides a method for assembling a prefabricated building reinforcement structure, including:
step s1, pre-drilling a hole on a structural wall, fixing a first supporting piece by using a plurality of first bolts, adjusting the pre-tightening force of the first bolts on the first supporting piece to a corresponding value according to an included angle between the first supporting piece and the structural wall in the process of fastening the first supporting piece by a central control processor, and adjusting the pre-tightening force of each first bolt to a corresponding value according to the size of a gap between the first supporting piece and the structural wall;
step s2, pre-drilling holes in the structural beam, fixing second supporting pieces by using a plurality of second bolts, and adjusting the pre-tightening force of each second bolt on each second supporting piece to a corresponding value according to the included angle between each second supporting piece and the structural beam and the size of a gap between each second supporting piece and the structural beam wall in the process of fastening the second supporting pieces by the central control processor;
step s3, sequentially penetrating a connecting bolt through a first connecting lug arranged on the first supporting piece and a second connecting lug arranged on the second supporting piece, and using a connecting nut and the connecting bolt to be matched and clamped with the first connecting lug and the second connecting lug so as to relatively fix the first supporting piece and the second supporting piece; the central control processor judges whether the pretightening force of the connecting bolt is adjusted to a corresponding value according to an included angle between the first supporting piece and the second supporting piece;
and step s4, placing the reinforcing member at a corresponding position between the first supporting member and the second supporting member, sequentially enabling a first fixing bolt to penetrate through a first fixing hole formed in the first supporting member and one end of the reinforcing member, sequentially enabling a second fixing bolt to penetrate through a second fixing hole formed in the second supporting member and the other end of the reinforcing member, and fixing the reinforcing member at the corresponding position between the first supporting member and the second supporting member by matching the first fixing nut and the first fixing bolt and matching the second fixing nut and the second fixing bolt so as to complete the installation of the reinforcing member.
Further, the central control processor controls the angle detector to detect an included angle theta a between the first supporting piece and the structural wall in the process of fastening the first supporting piece and judges whether to adjust the corresponding pretightening force F of the first bolt according to the theta a, the first supporting piece is fixed at the corresponding position on the structural wall through four first bolts which are sequentially and vertically arranged, the central control processor is provided with a first preset angle theta a1, a second preset angle theta a2, a first preset pretightening force adjustment coefficient alpha 1 and a second preset pretightening force adjustment coefficient alpha 2, wherein the theta a1 is smaller than the theta a2, the alpha 1 is smaller than the alpha 1 and smaller than the alpha 2 is smaller than 1.3,
if thetaa is not more than thetaa 1, the central control processor judges that the angle between the first supporting piece and the structural wall meets the standard, and the central control processor controls the distance detector to detect the gap between the first supporting piece and the structural wall so as to judge whether to adjust the initial pretightening force of each first bolt;
if the theta a1 is larger than the theta a and smaller than or equal to the theta a2, the central control processor adjusts the pretightening force of the corresponding first bolt arranged on the first supporting piece by using the alpha 1;
if thetaa is larger than thetaa 2, the central control processor adjusts the pretightening force of the corresponding first bolt arranged on the first supporting piece by using alpha 2;
when the central processor adjusts the pretension force F of each first bolt by using α i, i =1,2 is set, and the adjusted pretension force of the first bolt is recorded as F ', and F' = F × α i is set.
Further, when the central processor determines that the angle between the first support and the structure wall meets the standard, the central processor controls the distance detector to detect the gap Da between the first support and the structure wall, the central processor is provided with a first preset gap size D1 and a second preset gap size D2,
if Da is less than or equal to Da1, the central control processor judges that the gap between the first supporting piece and the structural wall meets the standard, and the step s2 is carried out to finish the installation of the second supporting piece;
if Da1 is more than Da and less than or equal to Da2, the central processor uses alpha 1 to adjust the pretightening force of each first bolt arranged on the first supporting piece;
if Da is larger than Da2, the central processor uses alpha 2 to adjust the pretightening force of each first bolt arranged on the first support;
when the central processor adjusts the pretightening force F of each bolt by using the alpha i, i =1,2 is set, and F "= F0 x alpha i is set for the pretightening force F of the first bolt after single adjustment, wherein F0 is the pretightening force of the first bolt when the central processor determines that the angle between the first supporting piece and the structural wall meets the standard.
Further, when the central processor determines that the angle between the first support and the structural wall does not meet a standard,
if theta a is not less than theta a2 and the opening of the included angle between the first supporting piece and the structural wall faces downwards, the central control processor determines to adjust the pretightening force of the first bolt positioned at the lowermost part of the first supporting piece, and if theta a is not less than theta a2 and the opening of the included angle between the first supporting piece and the structural wall faces upwards, the central control processor determines to adjust the pretightening force of the uppermost first bolt;
if theta a is larger than theta a2 and the opening of the included angle between the first supporting piece and the structural wall faces downwards, the central control processor determines to adjust the pretightening force of the two bolts of the first bolt at the lowermost part, and if theta a is larger than theta a2 and the opening of the included angle between the first supporting piece and the structural wall faces upwards, the central control processor determines to adjust the pretightening force of the two bolts of the first bolt at the uppermost part.
Further, in the step s2, the central processing unit adjusts the pretightening force of the corresponding second bolt on the second supporting member to a corresponding value according to an included angle between the second supporting member and the structural beam and adjusts the pretightening force of each second bolt to a corresponding value according to a size of a gap between the second supporting member and the structural beam in the process of fastening the second supporting member.
Further, in the step s3, the central control processor controls the angle detector to detect the included angle θ b between the first support member and the second support member when the connecting bolt fixes the first support member and the second support member relatively, and determines whether to adjust the pretightening force Fa of the connecting bolt according to θ b,
if thetab =90 degrees, the central control processor judges that the included angle between the first supporting piece and the second supporting piece meets the standard, and the step s4 is carried out to complete the installation of the reinforcing piece;
if thetab is larger than 90 degrees, the central control processor judges that the included angle between the first supporting piece and the second supporting piece does not meet the standard and adjusts Fa according to the difference value between thetab and 90 degrees;
if thetab is less than 90 degrees, the central control processor detects the angle between the first supporting piece and the structural wall to determine the first bolt of which the pretightening force needs to be adjusted and the pretightening force adjusted by the first bolts of which the pretightening force needs to be adjusted, and determines the second bolt of which the pretightening force needs to be adjusted and the pretightening force adjusted by the second bolts of which the pretightening force needs to be adjusted according to the angle between the second supporting piece and the structural beam.
Further, when the included angle theta b between the first supporting piece and the second supporting piece is larger than 90 degrees, the difference value delta theta b between theta b and 90 degrees is compared with each preset angle difference value, a corresponding preset connection pre-tightening force adjusting coefficient adjustment Fa is selected according to the comparison result, the central control processor is provided with a first preset angle difference value delta theta b1, a second preset angle difference value delta theta b2, a first preset connection pre-tightening force adjusting coefficient beta 1, a second preset connection pre-tightening force adjusting coefficient beta 2 and a third preset connection pre-tightening force adjusting coefficient beta 3, wherein delta theta b1 is less than delta theta b2,1 is more than beta 1 and more than beta 2 and more than beta 3 and less than 1.5,
if the delta theta b is less than or equal to the delta theta b1, the central control processor adjusts the connection pretightening force Fa of the connecting bolt by using the beta 1;
if delta theta b1 is less than delta theta b and less than or equal to delta theta b2, the central control processor adjusts the connection pretightening force Fa of the connection bolt by using beta 2;
if delta theta b is > [ delta ] theta b2, the central control processor adjusts the connection pretightening force Fa of the connection bolt by using beta 3;
when the central processor uses β k to adjust the connection pretension force Fa of the connection bolt, k =1,2,3 is set, and the adjusted connection pretension force is recorded as Fa ', and Fa' = Fa × β k is set.
Further, the central control processor is provided with a critical pretightening force Fmax, when the included angle θ b between the first supporting piece and the second supporting piece is smaller than 90 degrees and the pretightening force of the adjusted first bolt or the second bolt is judged to be larger than Fmax, the central control processor adjusts the pretightening force Fb of the connecting bolt according to the difference between the pretightening force of the first bolt or the second bolt and Fmax, the central control processor is provided with a first preset difference value delta F1, a second preset difference value delta F2, a third preset connecting pretightening force adjusting coefficient gamma 3, a fourth preset connecting pretightening force adjusting coefficient gamma 4 and a fifth preset connecting pretightening force adjusting coefficient gamma 5, delta F1 is smaller than delta F2,1 is larger than gamma 3 and smaller than gamma 4 and smaller than gamma 5 and smaller than 1.4,
regarding the adjusted pretightening force F ' of the first bolt, recording the difference between F ' and Fmax as DeltaF, setting DeltaF = F ' -Fmax,
if delta F is less than or equal to delta F1, the central control processor adjusts the connection pretightening force Fb of the connection bolt by using gamma 1;
if delta F1 is less than delta F and less than or equal to delta F2, the central control processor adjusts the connection pretightening force Fb of the connection bolt by using gamma 2;
if DeltaF is >. DELTA.F 2, the central control processor uses gamma 3 to adjust the connection pretightening force Fb of the connection bolt;
recording the difference between Fc ' and Fmax as Δ Fc, setting Δ Fc = Fc ' -Fmax for the adjusted pretension Fc ' of the second bolt,
if delta Fc is less than or equal to delta F1, the central control processor uses gamma 1 to adjust the connection pretightening force Fb of the connection bolt;
if delta F1 is less than delta Fc and less than or equal to delta F2, the central control processor uses gamma 2 to adjust the connection pretightening force Fb of the connecting bolt;
if Δ Fc >. DELTA.F 2, the central processor uses γ 3 to adjust the connection pretension Fb of the connection bolt;
when the central processor uses gamma j to adjust the pretightening force Fb of the connecting bolt, j =3,4 and 5 are set, the reinforcing pretightening force of the fixed bolt after adjustment is recorded as Fb ', and Fb' = Fb multiplied by gamma j is set.
Furthermore, after the reinforced structure is installed, the bearing force P of the reinforced structure needs to be checked, the initial pretightening force of each fixing bolt is adjusted according to the checking result, the central control processor is provided with a preset bearing force P0,
when P is less than P0, the central control processor increases the pretightening force of each fixing bolt;
and when the P is larger than or equal to P0, the central control processor judges that the installation of the reinforcing structure meets the requirement, and the pretightening force of each fixing bolt is not adjusted.
Compared with the prior art, the invention has the advantages that when each part of the reinforced structure is installed, the pretightening force of each bolt for fixing the part is adjusted in real time according to the installation condition of each part, and the installation stability of each part is effectively ensured, so that the whole reinforced structure can effectively support a building main body, and the reinforcing efficiency of the reinforced structure is further improved. Meanwhile, the bearing capacity of the reinforced structure is checked when the reinforced structure is installed, the pretightening force of each bolt is further ensured to meet the standard, and the reinforcing efficiency of the reinforced structure is further improved through verification.
Furthermore, the central control processor is provided with a plurality of preset angles and a plurality of pretightening force adjusting coefficients, the angle theta a between the first supporting piece and the structural wall is detected, the angle theta a is compared with each preset angle, and the initial pretightening force F of each first bolt is adjusted, so that the angle between the first supporting piece and the structural wall is ensured to meet the standard, the first supporting piece is effectively ensured to be installed to meet the standard, and the whole installation of the reinforced structure is ensured.
Furthermore, the central processor is provided with a plurality of preset gap sizes, the Da is compared with each preset gap size through detecting the gap size Da between the first supporting piece and the structure wall, and the initial pre-tightening force F of each first bolt is adjusted, so that the gap size between the first supporting piece and the structure wall is ensured to meet the standard, the first supporting piece is effectively ensured to meet the standard, the integral reinforced structure is ensured to be installed, and the reinforcing efficiency of the reinforced structure is further improved.
Furthermore, the central processor determines the concrete position of the bolt of which the pretightening force needs to be adjusted according to the size of an included angle between the first supporting piece and the structure wall and the direction of an opening, so that the pretightening force of each first bolt is effectively ensured to meet the standard, the reinforced structure can be stably fixed at the corresponding position, and the reinforcing efficiency of the reinforced structure is further improved.
Furthermore, the central control processor adjusts the pretightening force of each second bolt through the size of an included angle between the second support piece and the structural beam and the size of a gap, so that the angle between the second support piece and the structural beam is ensured to meet the standard, the installation of the second support piece is effectively ensured to meet the standard, and the integral installation of the reinforced structure is ensured.
Further, after the first supporting piece and the second supporting piece are respectively fixed at corresponding positions, whether the connection pretightening force Fa of the connecting bolt and the pretightening force F of each first bolt need to be adjusted is determined by detecting whether the included angle theta b between the first supporting piece and the second supporting piece is a right angle, and through the arrangement, the first supporting piece and the second supporting piece are effectively connected into a whole, so that the overall stability of the reinforced structure is improved, and the reinforcing efficiency of the reinforced structure is effectively ensured.
Furthermore, the central control processor is provided with a plurality of preset angle difference values and a plurality of preset connection pretightening force adjusting coefficients, when the theta b is larger than 90 degrees, the central control processor compares the difference delta theta b between the theta b and the 90 degrees with each preset angle difference value, and selects the corresponding preset connection pretightening force adjusting coefficient to adjust Fa according to the comparison result, so that the first supporting piece and the second supporting piece are effectively ensured to be tightly connected into a whole, the reinforcing force is increased, and the reinforcing efficiency of the reinforcing structure is further improved.
Furthermore, the central control processor is provided with a plurality of preset difference values, a preset critical pretightening force Fmax and a plurality of connection pretightening force adjusting coefficients, when thetab is less than 90 degrees and the adjusted pretightening force is judged to be greater than Fmax, the pretightening force of the connection bolt is adjusted according to the difference delta F between the first bolt or the second bolt and Fmax, and the relative stability of the first supporting piece and the second supporting piece is further ensured through the arrangement, so that a mattress is laid for subsequent reinforcement.
Furthermore, after the reinforced structure is installed, the central control processor can check the bearing capacity of the reinforced structure, so that the reinforced structure can effectively stabilize a building, and the reinforcing efficiency of the reinforced structure is further guaranteed.
Drawings
FIG. 1 is a right side view of a prefabricated building reinforcement structure according to the present invention;
FIG. 2 is a front view of the prefabricated building reinforcement structure of the present invention;
fig. 3 is a flowchart illustrating an assembling method of the prefabricated construction reinforcement structure according to the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and do not delimit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principles of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 and 2, which are a right side view and a front view of the prefabricated construction reinforcement structure according to the present invention, respectively, the prefabricated construction reinforcement structure according to the present invention comprises:
the first support piece 1 is provided with first connecting lugs 11 on two sides of the first support piece 2 respectively, and each connecting lug is provided with a first connecting hole 14; the first supporting piece 1 is also provided with a plurality of vertically arranged first through holes 13; the end part of the first supporting part 1 is also provided with a first fixing hole 12;
the second supporting piece 2 is provided with second connecting lugs 21 at two sides of the second supporting piece 2 respectively, and each connecting lug is provided with a second connecting hole (not shown in the figure); a plurality of second through holes (not shown in the figure) which are horizontally arranged are also formed in the second supporting piece 2; the end part of the second supporting piece 2 is also provided with a second fixing hole 22;
a plurality of first bolts (not shown in the figures), each of which is used for passing through the corresponding first through hole 13 to fix the first supporting member 1 at a corresponding position on a structural wall; the number of the first bolts is the same as that of the first through holes;
a plurality of second bolts (not shown in the figures) for passing through the corresponding second through holes to fix the second supporting member 2 at the corresponding position on the structural beam; the number of the second bolts is the same as that of the second through holes;
the connecting bolts 4 are respectively used for enabling the first supporting piece 1 and the second supporting piece 2 to be relatively fixed through the corresponding first connecting hole 14 and the second connecting hole and through the matching of connecting nuts corresponding to the connecting bolts;
a reinforcement member 3 disposed between the first and second support members 1 and 2 to form a triangular structure with the first and second support members 1 and 2; through holes (not shown in the figure) are arranged at both ends of the reinforcing member 3;
a first fixing bolt (not shown in the figures) for passing through the corresponding through hole to fix one end of the first support 1 and one end of the reinforcement 3 at corresponding positions;
second fixing bolts (not shown) for passing through the corresponding through holes to fix the other ends of the second support member 2 and the reinforcing member 3 at corresponding positions;
and a central control processor (not shown in the figure) which is arranged outside the reinforcing member and externally connected with an angle detector (not shown in the figure) and a distance detector (not shown in the figure) and is respectively used for detecting whether an included angle theta a between the first supporting member 1 and the structural wall meets the standard in the process of fastening the first supporting member 1 and judging whether to adjust the corresponding pretightening force F of the first bolt to a corresponding value according to the detection result and for detecting a gap between the first supporting member 1 and the structural wall so as to judge whether to adjust the initial pretightening force of each first bolt to a corresponding value.
Please refer to fig. 3, which illustrates an assembling method of a prefabricated building reinforcement structure according to the present invention, including:
step s1, pre-drilling a hole on a structural wall, fixing a first support member 1 by using a plurality of first bolts, adjusting the pre-tightening force of each first bolt on the first support member 1 to a corresponding value according to an included angle between the first support member and the structural wall and adjusting the pre-tightening force of each first bolt to a corresponding value according to the size of a gap between the first support member 1 and the structural wall in the process of fastening the first support member 1 by a central control processor;
step s2, pre-drilling holes in the structural beam, fixing second supporting pieces 2 by using a plurality of second bolts, adjusting the pre-tightening force of the second bolts on the second supporting pieces 2 to corresponding values according to the included angles between the second supporting pieces 2 and the structural beam and adjusting the pre-tightening force of each second bolt to corresponding values according to the size of a gap between the second supporting pieces 2 and the structural beam wall in the process of fastening the second supporting pieces 2 by the central control processor;
step s3, sequentially passing a connecting bolt 4 through a first connecting lug 11 arranged on the first support member 1 and a second connecting lug 21 arranged on the second support member 2, and clamping the first connecting lug 11 and the second connecting lug 21 by matching a connecting nut and the connecting bolt 4 so as to relatively fix the first support member 1 and the second support member 2; the central control processor judges whether to adjust the pretightening force of the connecting bolt 4 to a corresponding value according to the included angle between the first supporting piece 1 and the second supporting piece 2;
and step s4, placing the reinforcing member at a corresponding position between the first supporting member 1 and the second supporting member 2, sequentially passing a first fixing bolt through a first fixing hole formed in the first supporting member and one end of the reinforcing member 3, sequentially passing a second fixing bolt through a second fixing hole formed in the second supporting member 2 and the other end of the reinforcing member 3, and fixing the reinforcing member 3 at the corresponding position between the first supporting member 1 and the second supporting member 2 by matching the first fixing nut and the first fixing bolt and matching the second fixing nut and the second fixing bolt so as to complete the installation of the reinforcing member 3.
Specifically, the central control processor controls the angle detector to detect an included angle theta a between the first support member 1 and the structural wall in the process of fastening the first support member 1 and judges whether to adjust the corresponding pretightening force F of the first bolt according to theta a, the first support member 1 is fixed at the corresponding position on the structural wall through four first bolts which are sequentially and vertically arranged, the central control processor is provided with a first preset angle theta a1, a second preset angle theta a2, a first preset pretightening force adjustment coefficient alpha 1 and a second preset pretightening force adjustment coefficient alpha 2, wherein theta a1 is smaller than theta a2, alpha 1 is smaller than alpha 1 and smaller than alpha 2 is smaller than 1.3,
if thetaa is not more than thetaa 1, the central control processor judges that the angle between the first supporting piece 1 and the structural wall meets the standard, and the central control processor controls the distance detector to detect the gap between the first supporting piece 1 and the structural wall so as to judge whether to adjust the initial pretightening force of each first bolt;
if the theta a1 is larger than the theta a and is not larger than the theta a2, the central control processor uses the alpha 1 to adjust the pretightening force of the corresponding first bolt arranged on the first supporting piece 1;
if thetaa is larger than thetaa 2, the central control processor uses alpha 2 to adjust the pretightening force of the corresponding first bolt arranged on the first supporting piece 1;
when the central processor adjusts the pretightening force F of each first bolt by using the α i, i =1,2 is set, the pretightening force of the adjusted first bolt is recorded as F ', and F' = F × α i is set.
The central control processor is provided with a plurality of preset angles and a plurality of preset pretightening force adjusting coefficients, the angle theta a between the first supporting piece 1 and the structural wall is detected, the angle theta a is compared with each preset angle, and the initial pretightening force F of each first bolt is adjusted, so that the angle between the first supporting piece 1 and the structural wall is ensured to meet the standard, the first supporting piece 1 is effectively ensured to be installed to meet the standard, and the integral reinforced structure is ensured to be installed.
Specifically, when the central processor determines that the angle between the first support 1 and the structural wall meets the standard, the central processor controls the distance detector to detect the gap Da between the first support 1 and the structural wall, the central processor is provided with a first preset gap size D1 and a second preset gap size D2,
if Da is less than or equal to Da1, the central control processor determines that the gap between the first support member 1 and the structure wall meets the standard, and the step s2 is carried out to complete the installation of the second support member 2;
if Da1 is more than Da and less than or equal to Da2, the central control processor uses alpha 1 to adjust the pretightening force of each first bolt arranged on the first supporting piece 1;
if Da is larger than Da2, the central processor uses alpha 2 to adjust the pretightening force of each first bolt arranged on the first support 1;
when the central processor adjusts the pretension force F of each bolt by using α i, i =1,2 is set, and F "= F0 × α i is set for the pretension force F ″ of the first bolt after single adjustment, where F0 is the pretension force of the first bolt when the central processor determines that the angle between the first support 1 and the structural wall meets the standard.
The central control processor is provided with a plurality of preset gap sizes, the Da is compared with each preset gap size through detecting the gap size Da between the first supporting piece 1 and the structure wall, and the initial pre-tightening force F of each first bolt is adjusted, so that the gap size between the first supporting piece 1 and the structure wall is ensured to meet the standard, the first supporting piece 1 is effectively ensured to meet the standard in installation, the integral reinforced structure is ensured to be installed, and the reinforcing efficiency of the reinforced structure is further improved.
Specifically, when the central processor determines that the angle between the first support 1 and the structural wall does not meet the standard,
if thetaa is not more than thetaa 2 and the opening of the included angle between the first support member 1 and the structural wall faces downwards, the central control processor judges to adjust the pretightening force of the first bolt positioned at the lowermost part of the first support member 1, and if thetaa is not more than thetaa 2 and the opening of the included angle between the first support member 1 and the structural wall faces upwards, the central control processor judges to adjust the pretightening force of the first bolt at the uppermost part;
if theta a is larger than theta a2 and the opening of the included angle between the first supporting piece 1 and the structural wall faces downwards, the central control processor determines to adjust the pretightening force of the two bolts of the first bolt at the lowest part, and if theta a is larger than theta a2 and the opening of the included angle between the first supporting piece 1 and the structural wall faces upwards, the central control processor determines to adjust the pretightening force of the two bolts of the first bolt at the uppermost part.
According to the central control processor, the concrete positions of the bolts with the pretightening force to be adjusted are determined according to the size of the included angle between the first supporting piece 1 and the structural wall and the opening direction, so that the pretightening force of each first bolt is effectively ensured to meet the standard, the reinforcing structure can be stably fixed at the corresponding position, and the reinforcing efficiency of the reinforcing structure is further improved.
Specifically, in the step s2, the central processing unit adjusts the pretightening force of the corresponding second bolt on the second supporting member 2 to a corresponding value according to an included angle between the second supporting member 2 and the structural beam in the process of fastening the second supporting member 2, and adjusts the pretightening force of each second bolt to a corresponding value according to the size of a gap between the second supporting member and the structural beam.
The central control processor adjusts the pretightening force of each second bolt through the size of an included angle and the size of a gap between the second support piece 2 and the structural beam, so that the angle between the second support piece 2 and the structural beam is ensured to meet the standard, the second support piece 2 is effectively ensured to meet the standard in installation, and the installation of the integral reinforced structure is guaranteed.
Specifically, in the step s3, the central control processor controls the angle detector to detect the included angle θ b between the first support 1 and the second support 2 when the connecting bolt 4 fixes the first support 1 and the second support 2 relatively, and determines whether to adjust the pretightening force Fa of the connecting bolt 4 according to θ b,
if θ b =90 °, the central control processor determines that the included angle between the first support member 1 and the second support member 2 meets the standard, and performs the step s4 to complete the installation of the reinforcement member;
if thetab is larger than 90 degrees, the central control processor judges that the included angle between the first supporting piece 1 and the second supporting piece 2 does not meet the standard and adjusts Fa according to the difference value between thetab and 90 degrees;
if thetab is less than 90 degrees, the central control processor detects the angle between the first supporting piece 1 and the structural wall to determine the first bolt of which the pretightening force needs to be adjusted and the pretightening force after being adjusted by the first bolts of which the pretightening force needs to be adjusted, and determines the second bolt of which the pretightening force needs to be adjusted and the pretightening force after being adjusted by the second bolts of which the pretightening force needs to be adjusted according to the angle between the second supporting piece 2 and the structural beam.
According to the invention, after the first supporting piece 1 and the second supporting piece 2 are respectively fixed at corresponding positions, whether the connection pretightening force Fa of the connecting bolt 4 and the pretightening force F of each first bolt need to be adjusted is determined by detecting whether the included angle theta b between the first supporting piece 1 and the second supporting piece 2 is a right angle, and through the arrangement, the first supporting piece 1 and the second supporting piece 2 are effectively connected into a whole, so that the integral stability of the reinforced structure is improved, and the reinforcing efficiency of the reinforced structure is effectively ensured.
Specifically, when the included angle θ b between the first supporting piece 1 and the second supporting piece 2 is greater than 90 degrees, the difference value Δ θ b between θ b and 90 degrees is compared with each preset angle difference value, a corresponding preset connection pre-tightening force adjustment coefficient adjustment Fa is selected according to the comparison result, the central control processor is provided with a first preset angle difference value Δ θ b1, a second preset angle difference value Δ θ b2, a first preset connection pre-tightening force adjustment coefficient β 1, a second preset connection pre-tightening force adjustment coefficient β 2 and a third preset connection pre-tightening force adjustment coefficient β 3, wherein Δ θ b1 is less than Δ θ b2,1 < β 2 < β 3 < 1.5,
if the delta theta b is less than or equal to the delta theta b1, the central control processor adjusts the connection pretightening force Fa of the connecting bolt 4 by using the beta 1;
if delta theta b1 is less than delta theta b and less than or equal to delta theta b2, the central control processor adjusts the connection pretightening force Fa of the connection bolt 4 by using beta 2;
if delta theta b > -delta theta b2, the central control processor adjusts the connection pretightening force Fa of the connecting bolt 4 by using beta 3;
when the central processor adjusts the connection pre-tightening force Fa of the connection bolt 4 by using β k, k =1,2,3, and the adjusted connection pre-tightening force is recorded as Fa ', fa' = Fa × β k is set.
The central control processor is provided with a plurality of preset angle difference values and a plurality of preset connection pretightening force adjusting coefficients, when theta b is larger than 90 degrees, the central control processor compares the difference delta theta b between the theta b and the 90 degrees with each preset angle difference value, and selects the corresponding preset connection pretightening force adjusting coefficient to adjust Fa according to the comparison result, so that the first supporting piece 1 and the second supporting piece 2 are effectively ensured to be tightly connected into a whole, the reinforcing force is increased, and the reinforcing efficiency of the reinforcing structure is further improved.
Specifically, the central processor is provided with a critical pretightening force Fmax, when an included angle θ b between the first supporting member 1 and the second supporting member 2 is smaller than 90 degrees and the pretightening force of the adjusted first bolt or the adjusted second bolt is larger than Fmax, the central processor adjusts the pretightening force Fb of the connecting bolt 4 according to the difference between the pretightening force of the first bolt or the second bolt and Fmax, the central processor is provided with a first preset difference Δ F1, a second preset difference Δ F2, a third preset connecting pretightening force adjustment coefficient γ 3, a fourth preset connecting pretightening force adjustment coefficient γ 4 and a fifth preset connecting pretightening force adjustment coefficient γ 5, Δ F1 is less than Δ F2,1 is more than γ 3 and more than γ 4 and more than γ 5 and less than 1.4,
regarding the adjusted pretightening force F ' of the first bolt, recording the difference between F ' and Fmax as DeltaF, setting DeltaF = F ' -Fmax,
if delta F is less than or equal to delta F1, the central control processor uses gamma 1 to adjust the connection pretightening force Fb of the connecting bolt 4;
if delta F1 is less than delta F and less than or equal to delta F2, the central control processor uses gamma 2 to adjust the connection pretightening force Fb of the connecting bolt 4;
if deltaF is > -deltaF 2, the central control processor uses gamma 3 to adjust the connection pretightening force Fb of the connection bolt 4;
recording the difference between Fc ' and Fmax as Δ Fc, setting Δ Fc = Fc ' -Fmax for the adjusted pretension Fc ' of the second bolt,
if delta Fc is less than or equal to delta F1, the central control processor uses gamma 1 to adjust the connection pretightening force Fb of the connection bolt 4;
if delta F1 is less than delta Fc and less than or equal to delta F2, the central control processor uses gamma 2 to adjust the connection pretightening force Fb of the connecting bolt 4;
if Δ Fc >. DELTA.F 2, the central processor uses γ 3 to adjust the connection pretension Fb of the connection bolt 4;
when the central processor uses gamma j to adjust the pretightening force Fb of the connecting bolt 4, j =3,4,5 is set, and the adjusted fastening pretightening force of the fixing bolt is recorded as Fb ', and Fb' = Fb multiplied by gamma j is set.
The central control processor is provided with a plurality of preset difference values, a preset critical pretightening force Fmax and a plurality of connection pretightening force adjusting coefficients, when thetab is less than 90 degrees and the adjusted pretightening force is judged to be larger than Fmax, the pretightening force of the connection bolt is adjusted according to the difference delta F between the first bolt or the second bolt and the Fmax, and the relative stability of the first supporting piece 1 and the second supporting piece 2 is further ensured through the arrangement, so that a mattress is laid for subsequent reinforcement.
Specifically, after the reinforcing structure is installed, the bearing force P of the reinforcing structure needs to be checked, the initial pre-tightening force of each fixing bolt is adjusted according to the checking result, the central control processor is provided with a preset bearing force P0,
when P is less than P0, the central control processor increases the pretightening force of each fixing bolt;
and when P is larger than or equal to P0, the central control processor judges that the installation of the reinforcing structure meets the requirement, and the pretightening force of each fixing bolt is not adjusted.
After the reinforcing structure is installed, the central control processor can check the bearing capacity of the reinforcing structure, so that the reinforcing structure can effectively stabilize a building, and the reinforcing efficiency of the reinforcing structure is further guaranteed.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can be within the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method of assembling a prefabricated building reinforcement structure, comprising:
step s1, pre-drilling a hole on a structural wall, fixing a first supporting piece by using a plurality of first bolts, adjusting the pre-tightening force of the first bolts on the first supporting piece to a corresponding value according to an included angle between the first supporting piece and the structural wall in the process of fastening the first supporting piece by a central control processor, and adjusting the pre-tightening force of each first bolt to a corresponding value according to the size of a gap between the first supporting piece and the structural wall;
step s2, pre-drilling holes in the structural beam, fixing second supporting pieces by using a plurality of second bolts, adjusting the pre-tightening force of the second bolts on the second supporting pieces to corresponding values according to the included angle between the second supporting pieces and the structural beam and adjusting the pre-tightening force of each second bolt to corresponding values according to the size of a gap between the second supporting pieces and the structural beam wall in the process of fastening the second supporting pieces by the central control processor;
step s3, sequentially penetrating a connecting bolt through a first connecting lug arranged on the first supporting piece and a second connecting lug arranged on the second supporting piece, and using a connecting nut and the connecting bolt to be matched and clamped with the first connecting lug and the second connecting lug so as to relatively fix the first supporting piece and the second supporting piece; the central control processor judges whether to adjust the pretightening force of the connecting bolt to a corresponding value according to the included angle between the first supporting piece and the second supporting piece;
and step s4, placing the reinforcing member at a corresponding position between the first supporting member and the second supporting member, sequentially passing a first fixing bolt through a first fixing hole formed in the first supporting member and one end of the reinforcing member, sequentially passing a second fixing bolt through a second fixing hole formed in the second supporting member and the other end of the reinforcing member, and fixing the reinforcing member at the corresponding position between the first supporting member and the second supporting member by matching the first fixing nut and the first fixing bolt and matching the second fixing nut and the second fixing bolt so as to complete the installation of the reinforcing member.
2. The assembly method of the prefabricated building reinforcement structure according to claim 1, wherein the central control processor controls the angle detector to detect an included angle θ a between the first support member and the structural wall in the process of fastening the first support member and determines whether to adjust the pretightening force F of the corresponding first bolt according to θ a, the first support member is fixed at a corresponding position on the structural wall through four first bolts which are vertically arranged in sequence, the central control processor is provided with a first preset angle θ a1, a second preset angle θ a2, a first preset pretightening force adjustment coefficient α 1 and a second preset pretightening force adjustment coefficient α 2, wherein θ a1 is smaller than θ a2,1 is smaller than α 2 is smaller than 1.3,
if thetaa is not more than thetaa 1, the central control processor judges that the angle between the first supporting piece and the structural wall meets the standard, and the central control processor controls the distance detector to detect the gap between the first supporting piece and the structural wall so as to judge whether to adjust the initial pretightening force of each first bolt;
if the theta a1 is larger than the theta a and smaller than or equal to the theta a2, the central control processor adjusts the pretightening force of the corresponding first bolt arranged on the first supporting piece by using the alpha 1;
if thetaa is larger than thetaa 2, the central control processor adjusts the pretightening force of the corresponding first bolt arranged on the first supporting piece by using alpha 2;
when the central processor adjusts the pretension force F of each first bolt by using α i, i =1,2 is set, and the adjusted pretension force of the first bolt is recorded as F ', and F' = F × α i is set.
3. The prefabricated building reinforcement structure of claim 2, wherein the central processor controls the distance detector to detect the gap Da between the first support member and the structural wall when the central processor determines that the angle between the first support member and the structural wall meets the criterion, the central processor is provided with a first predetermined gap dimension D1 and a second predetermined gap dimension D2,
if Da is less than or equal to Da1, the central control processor judges that the gap between the first supporting piece and the structure wall meets the standard, and the step s2 is carried out to complete the installation of the second supporting piece;
if Da1 is more than Da and less than or equal to Da2, the central processor uses alpha 1 to adjust the pretightening force of each first bolt arranged on the first supporting piece;
if Da is larger than Da2, the central processor uses alpha 2 to adjust the pretightening force of each first bolt arranged on the first support;
when the central processor adjusts the pretension force F of each bolt by using α i, i =1,2 is set, and F "= F0 × α i is set for the pretension force F ″ of the first bolt after single adjustment, where F0 is the pretension force of the first bolt when the central processor determines that the angle between the first support and the structural wall meets the standard.
4. The method of assembling a prefabricated building reinforcement structure of claim 3, wherein when the central processor determines that the angle between the first support member and the structural wall does not meet a standard,
if theta a is less than or equal to theta a2 and the opening of the included angle between the first support piece and the structural wall faces downwards, the central control processor determines to adjust the pretightening force of the first bolt positioned at the lowermost part of the first support piece, and if theta a is less than or equal to theta a2 and the opening of the included angle between the first support piece and the structural wall faces upwards, the central control processor determines to adjust the pretightening force of the first bolt at the uppermost part;
if theta a is larger than theta a2 and the opening of the included angle between the first supporting piece and the structural wall faces downwards, the central control processor determines to adjust the pretightening force of the two bolts of the first bolt at the lowest part, and if theta a is larger than theta a2 and the opening of the included angle between the first supporting piece and the structural wall faces upwards, the central control processor determines to adjust the pretightening force of the two bolts of the first bolt at the uppermost part.
5. The method for assembling a prefabricated building reinforcement structure according to claim 1, wherein in the step s2, the central processor adjusts the pretightening force of the corresponding second bolt on the second supporting member to a corresponding value according to the included angle between the second supporting member and the structural beam and adjusts the pretightening force of each second bolt to a corresponding value according to the size of the gap between the second supporting member and the structural beam during the process of fastening the second supporting member.
6. The assembly method of prefabricated building reinforcement structure according to claim 5, wherein in step s3, the central processor controls the angle detector to detect the included angle θ b between the first and second supporting members when the connecting bolt fixes the first and second supporting members relatively and determines whether the pre-tightening force Fa of the connecting bolt needs to be adjusted according to θ b,
if thetab =90 degrees, the central control processor judges that the included angle between the first supporting piece and the second supporting piece meets the standard, and the step s4 is carried out to finish the installation of the reinforcing piece;
if thetab is larger than 90 degrees, the central control processor judges that the included angle between the first supporting piece and the second supporting piece does not meet the standard and adjusts Fa according to the difference value between thetab and 90 degrees;
if thetab is less than 90 degrees, the central control processor detects the angle between the first supporting piece and the structural wall to determine the first bolt of which the pretightening force needs to be adjusted and the pretightening force after being adjusted by the first bolts of which the pretightening force needs to be adjusted, and determines the second bolt of which the pretightening force needs to be adjusted and the pretightening force after being adjusted by the second bolts of which the pretightening force needs to be adjusted according to the angle between the second supporting piece and the structural beam.
7. The assembly method of the prefabricated building reinforcement structure according to claim 6, wherein when the included angle θ b between the first supporting member and the second supporting member is greater than 90 °, the difference Δ θ b between θ b and 90 ° is compared with each preset angle difference, and a corresponding preset connection pre-tightening force adjustment coefficient Fa is selected according to the comparison result, wherein the central processor is provided with a first preset angle difference Δ θ b1, a second preset angle difference Δ θ b2, a first preset connection pre-tightening force adjustment coefficient β 1, a second preset connection pre-tightening force adjustment coefficient β 2, and a third preset connection pre-tightening force adjustment coefficient β 3, wherein Δ θ b1 is less than θ b2,1 < β 2 < β 3 < 1.5,
if the delta theta b is less than or equal to the delta theta b1, the central control processor adjusts the connection pretightening force Fa of the connecting bolt by using the beta 1;
if the delta theta b1 is less than the delta theta b and less than or equal to the delta theta b2, the central control processor adjusts the connection pretightening force Fa of the connecting bolt by using the beta 2;
if delta theta b > -delta theta b2, the central control processor adjusts the connection pretightening force Fa of the connecting bolt by using beta 3;
when the central processor uses β k to adjust the connection pretension force Fa of the connection bolt, k =1,2,3 is set, and the adjusted connection pretension force is recorded as Fa ', and Fa' = Fa × β k is set.
8. The assembly method of the prefabricated building reinforcement structure according to claim 7, wherein the central control processor is provided with a critical pretightening force Fmax, when the included angle θ b between the first supporting member and the second supporting member is smaller than 90 ° and the adjusted pretightening force of the first bolt or the second bolt is determined to be greater than Fmax, the central control processor adjusts the pretightening force Fb of the connecting bolt according to the difference between the pretightening force of the first bolt or the second bolt and Fmax, the central control processor is provided with a first preset difference Δ F1, a second preset difference Δ F2, a third preset connecting pretightening force adjusting coefficient γ 3, a fourth preset connecting pretightening force adjusting coefficient γ 4, a fifth preset connecting pretightening force adjusting coefficient γ 5, Δ F1 < [ delta ] F2,1 < γ 3 < γ 4 < γ 5 < 1.4,
regarding the adjusted pretightening force F ' of the first bolt, recording the difference between F ' and Fmax as DeltaF, setting DeltaF = F ' -Fmax,
if delta F is less than or equal to delta F1, the central control processor adjusts the connection pretightening force Fb of the connection bolt by using gamma 1;
if delta F1 is less than delta F and less than or equal to delta F2, the central control processor adjusts the connection pretightening force Fb of the connection bolt by using gamma 2;
if DeltaF is >. DELTA.F 2, the central control processor uses gamma 3 to adjust the connection pretightening force Fb of the connection bolt;
recording the difference between Fc ' and Fmax as Δ Fc, setting Δ Fc = Fc ' -Fmax for the adjusted pretension Fc ' of the second bolt,
if delta Fc is less than or equal to delta F1, the central control processor uses gamma 1 to adjust the connection pretightening force Fb of the connection bolt;
if delta F1 is less than delta Fc and less than or equal to delta F2, the central control processor uses gamma 2 to adjust the connection pretightening force Fb of the connecting bolt;
if delta Fc is > -delta F2, the central control processor uses gamma 3 to adjust the connection pretightening force Fb of the connection bolt;
when the central processor uses gamma j to adjust the pretightening force Fb of the connecting bolt, j =3,4,5 is set, the reinforcing pretightening force of the fixed bolt after adjustment is recorded as Fb ', and Fb' = Fb multiplied by gamma j is set.
9. The assembly method of the prefabricated building reinforcement structure of claim 8, wherein after the installation of the reinforcement structure, the bearing force P of the reinforcement structure is checked, the initial pre-tightening force of each fixing bolt is adjusted according to the check result, the central processor is provided with a preset bearing force P0,
when P is less than P0, the central control processor increases the pretightening force of each fixing bolt;
and when the P is larger than or equal to P0, the central control processor judges that the installation of the reinforcing structure meets the requirement, and the pretightening force of each fixing bolt is not adjusted.
10. A prefabricated building reinforcement structure, comprising:
the first support piece is provided with first connecting lugs on two sides respectively, and each connecting lug is provided with a first connecting hole; the first supporting piece is also provided with a plurality of vertically arranged first through holes; the end part of the first supporting piece is also provided with a first fixing hole;
the two sides of the second supporting piece are respectively provided with a second connecting lug, and each connecting lug is provided with a second connecting hole; the second supporting piece is also provided with a plurality of second through holes which are horizontally arranged; the end part of the second supporting piece is also provided with a second fixing hole;
the first supporting piece is fixed on the structural wall through the first through hole; the number of the first bolts is the same as that of the first through holes;
the second bolts are used for fixing the second supporting piece at a corresponding position on the structural beam through the corresponding second through holes respectively; the number of the second bolts is the same as that of the second through holes;
the connecting bolts are respectively used for being matched with the corresponding first connecting holes and the second connecting holes through connecting nuts corresponding to the connecting bolts so as to enable the first supporting piece and the second supporting piece to be relatively fixed;
the reinforcing member is arranged between the first support member and the second support member and used for forming a triangular structure with the first support member and the second support member; through holes are formed in the two ends of the reinforcing piece;
the first fixing bolt is used for fixing one ends of the first supporting piece and the reinforcing piece at corresponding positions through the corresponding through holes;
and the second fixing bolt is used for fixing the other ends of the second supporting piece and the reinforcing piece at corresponding positions through the corresponding through holes.
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| CN115992605A (en) * | 2023-03-23 | 2023-04-21 | 福建省中霖工程建设有限公司 | Prefabricated building reinforcing structure and assembling method thereof |
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| CN115992605A (en) * | 2023-03-23 | 2023-04-21 | 福建省中霖工程建设有限公司 | Prefabricated building reinforcing structure and assembling method thereof |
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