Energy-saving steel-wood combined structure assembly construction method

Abstract

The present application relates to the technical field of building structure assembly, and discloses a kind of energy-saving steel-wood composite structure assembly construction method, comprising the following steps: S1, respectively in wood component and steel connecting piece are provided with wood positioning hole and steel positioning hole, and at least one reference hole is determined on wood component and steel connecting piece by positioning hole, and through hole is provided on heat insulation pad;S2, heat insulation pad is arranged between the connecting end surface of wood component and steel connecting piece;And heat insulation sleeve is inserted into the hole channel formed by wood positioning hole of wood component and steel positioning hole of steel connecting piece, and heat insulation sleeve is used as the temporary limiting pin of steel connecting piece and heat insulation pad positioning;S3, heat insulation sleeve is inserted into the remaining hole channel, and glue positioning is positioned between heat insulation sleeve and wood positioning hole on wood component;S4, through bolt is installed in heat insulation sleeve. The combination positioning between steel-wood composite structure can be quickly completed, and the node thermal bridge in combination positioning can be avoided.

Description

Technical Field

[0001] This invention relates to the field of building structure assembly technology, specifically a method for assembling and constructing an energy-saving steel-wood composite structure. Background Technology

[0002] Steel-wood composite structures combine the high load-bearing capacity of steel components with the lightweight, low-carbon, and good thermal insulation properties of wood components, making them widely applicable in prefabricated buildings, low-carbon buildings, and energy-saving buildings. In steel-wood composite structures, steel connectors are typically used to connect wooden beams, wooden columns, wooden wall panels, or wooden floors. Nodes are generally fixed using bolts, nuts, connecting plates, angle brackets, connecting seats, or embedded steel components. In other words, during construction, wooden components serve as the primary load-bearing and structural elements, while steel connectors are used as connecting parts for assembling the wooden components.

[0003] In actual construction, steel structure connectors are prefabricated and highly stable, and their assembly is convenient and efficient, meeting the needs of various construction environments such as beam-column joints and beam-slab joints. However, they also have limitations. For example, especially in environments with large temperature differences, steel structure connectors, their matching fixing bolts, and the metal sleeves or embedded steel parts used in assembly can easily form continuous metal heat transfer paths due to the thermal conductivity of metal, making the steel-wood connection joint a local thermal bridge. Thermal bridging increases heat loss, making steel-wood composite structures prone to condensation, mold, or localized insulation failure in areas with large temperature differences. To reduce the impact of thermal bridging, existing methods typically involve placing insulating gaskets between steel connectors and wooden components or installing insulating sleeves in bolt holes during construction. However, issues such as non-coaxial alignment between bolts and insulating sleeves, and bolt reinforcement compression can still damage the insulating components, causing new thermal bridges to form. This necessitates repeated checks during assembly to avoid thermal bridging at joints, which is inconvenient and energy-intensive.

[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on the existing steel-wood composite structure assembly construction methods. Summary of the Invention

[0005] The purpose of this invention is to provide an energy-saving method for assembling and constructing steel-wood composite structures, thereby solving the problems mentioned in the background art regarding the existing methods for assembling and constructing steel-wood composite structures, such as difficulty in avoiding thermal bridging at joints, inconvenience in construction verification, and high energy consumption.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a method for assembling and constructing an energy-saving steel-wood composite structure, comprising the following steps: S1. Wood positioning holes and steel positioning holes are respectively opened on the wooden components and steel connectors, and at least one reference hole is determined on the wooden components and steel connectors through the wood positioning holes and steel positioning holes, and a through hole is opened on the heat insulation pad. S2. Arrange the heat insulation pad between the connecting end faces of the wooden component and the steel connector; and insert the heat insulation sleeve into the channel formed by the wooden positioning hole of the wooden component and the steel positioning hole of the steel connector. The channel also includes a through hole on the heat insulation pad, and use the heat insulation sleeve as a temporary limiting pin for positioning the steel connector and the heat insulation pad. S3. Insert the heat insulation sleeve into the remaining duct, and glue the heat insulation sleeve and the wooden positioning hole on the wooden component for positioning, and check the stability of the glue on the heat insulation sleeve. S4. Through bolts are installed inside the heat insulation sleeve to assemble and position the wooden components and steel connectors. Heat insulation gaskets are provided on both the outer end and the inside of the heat insulation sleeve to connect with the bolts. At the same time, the bolts do not contact the wooden components and steel connectors, forming a heat insulation interval for bolt installation.

[0007] Preferably, the heat insulation sleeve is configured as a "T" shape, and the part of the heat insulation sleeve inserted into the wooden positioning hole on the wooden component is configured as a three-layer cylindrical structure with an outer layer of low thermal conductivity, a middle layer of elastic adhesive, and an inner lining layer. The heat insulation gasket is located inside the inner lining layer and fixed at the end. Furthermore, the outer end of the connection between the heat insulation sleeve and the steel connector is an extension of the elastic rubber layer, which is nested with a metal wire armor. Another heat insulation pad is embedded at the end of the extension and at the connection between the bolt nut end.

[0008] Preferably, the bolts are fixed to the inner liner and the extension by threads and adhesive, wherein the elastic adhesive layer deforms under external pressure to position the bolts and prevent direct compression contact between the bolts and the low thermal conductivity sleeve.

[0009] Preferably, the wooden positioning holes in the middle of the wooden component are distributed at an angle in the vertical projection plane. There are two sets of wooden positioning holes in the middle of the wooden component, and the two sets of wooden positioning holes in the middle of the wooden component are inclined in opposite directions to ensure the installation firmness of the steel connector.

[0010] Preferably, in step S1, the steel positioning holes on the steel connector and the wooden positioning holes on the wooden component are equal in number and in the same position, and are set in a one-to-one correspondence. At the same time, the vertical height of the steel positioning hole in the middle of the steel connector is greater than the width of the middle part of the steel positioning hole. By adjusting the height and width of the steel positioning hole in the middle of the steel connector, it is convenient to install the heat insulation sleeve in the wooden positioning hole in the middle of the wooden component at an inclined position.

[0011] Preferably, the temporary limiting pin in S2 is a heat insulation sleeve that is inclined upward in the middle of the steel connector and the wooden component. The temporary limiting pin achieves temporary limiting of the steel connector and the heat insulation pad on the wooden component through friction constraint.

[0012] Preferably, in S3, the heat insulation sleeve, which serves as a temporary limiting pin, is removed during the process of verifying the stability of the adhesive on the heat insulation sleeve, and a deformation verification is performed. If the deformation in the deformation verification does not exceed the deformation threshold, the heat insulation sleeve is re-adheded and positioned with the corresponding channel.

[0013] Preferably, in S1, auxiliary holes are provided on the wooden components and the heat insulation pad in a one-to-one correspondence, and the number of auxiliary holes is set to 2. At the same time, the heat insulation pad is temporarily positioned through the auxiliary holes and the wooden dowels fixed by adhesive through them.

[0014] Preferably, in step S4, after the bolt and the heat insulation sleeve are connected and positioned, the residual gap between the bolt and the heat insulation sleeve is checked, and the gap is eliminated by adhesive connection; at the same time, the compression and fixing status between the bolt and the extension of the heat insulation sleeve is checked.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the method for assembling and constructing this energy-saving steel-wood composite structure can quickly complete the assembly and positioning of the steel-wood composite structure, avoid thermal bridges at the joints during assembly and positioning, and improve assembly convenience and energy efficiency. The specific method is as follows: The thermal insulation sleeve is used as a temporary locating pin during the installation of steel connectors and thermal insulation pads. The wooden positioning holes set at the middle of the wooden components form a temporary locating pin, which allows the steel connectors and thermal insulation pads to maintain their initial positioning before the bolts are officially installed. This reduces repeated on-site support and verification operations and improves the assembly efficiency of the steel-wood composite structure. The thermal insulation sleeve adopts a three-layer cylindrical structure consisting of a low thermal conductivity sleeve, an elastic adhesive layer, and an inner lining layer. When the bolts are not completely coaxial with the wooden positioning holes or the thermal insulation sleeve, the elastic adhesive layer can absorb the displacement of the inner lining layer through deformation, preventing the bolts from directly squeezing the low thermal conductivity sleeve, thereby reducing the risk of re-forming thermal bridges at the joints after the thermal insulation sleeve is damaged. An extension formed by an elastic adhesive layer is provided at the outer end of the heat insulation sleeve, and a heat insulation gasket is provided at the end of the extension to maintain a heat insulation gap between the bolt nut end and the steel connector, so as to avoid the bolt end from directly contacting the steel connector and forming a metal heat transfer path. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the assembly and construction method of the present invention; Figure 2 This is a schematic diagram of the assembly style of the wooden components and steel connectors of the present invention; Figure 3 This is a schematic diagram of the side view of the steel connector of the present invention during installation; Figure 4 This is a schematic diagram of the mounting surface state of the wooden component of the present invention; Figure 5 This is a schematic diagram of the heat insulation sleeve of the present invention.

[0017] In the diagram: 1. Wooden component; 2. Steel connector; 3. Thermal insulation pad; 4. Auxiliary hole; 5. Wooden positioning hole; 501. Positioning hole one; 502. Positioning hole two; 51. Steel positioning hole; 6. Thermal insulation sleeve; 601. Low thermal conductivity sleeve; 602. Elastic adhesive layer; 603. Inner lining layer; 604. Extension; 605. Thermal insulation gasket. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figures 1-5 This invention provides a technical solution: a method for assembling and constructing an energy-saving steel-wood composite structure, which enables rapid assembly and alignment between the steel and wood components. This avoids the problem of penetration and compression during assembly due to installation deviations between bolts and the insulation sleeve 6, preventing damage to the insulation sleeve 6 and the re-formation of thermal bridges at the joints. Specifically, this addresses the issue that existing bolts and insulation units are prone to damage due to excessive bolt tightening force. It also addresses the problem that when steel positioning holes 51 and wood positioning holes 5 are opened on the steel and wood components, and bolts are used for reinforcement, if the wood positioning holes 5 are inclined and the bolts are not coaxially aligned with the inclined wood positioning holes 5 and the insulation sleeve 6 during tightening, the metal bolt components will directly contact the steel and wood components, forming thermal bridges at the joints.

[0020] S1. Wood positioning holes 5 and steel positioning holes 51 are respectively opened on the wood component 1 and the steel connector 2, and at least one reference hole is determined on the wood component 1 and the steel connector 2 through the wood positioning holes 5 and the steel positioning holes 51, and a through hole is opened on the heat insulation pad 3. Before construction, the arrangement of the wooden positioning holes 5 and steel positioning holes 51 is determined according to the connection area between the steel connector 2 and the wooden component 1. The reference holes are used to determine the relative positions between the steel connector 2, the heat insulation pad 3, and the wooden component 1 in the early stage of construction. The wooden positioning holes 5 and steel positioning holes 51 are used for the subsequent installation of the remaining heat insulation sleeves 6 and bolts. At least two sets of wooden positioning holes 5 in the middle of the wooden component 1 are distributed in an inclined manner in the vertical projection plane. One set of wooden positioning holes 5 is inclined upward, and the other set of wooden positioning holes 5 is inclined downward. The upwardly inclined wooden positioning holes 5 are used to cooperate with the heat insulation sleeves 6 to form a temporary hanging limiting structure, so that after the heat insulation sleeves 6 are inserted, they can support the steel connector 2 and the heat insulation pad 3 with the friction of the hole wall of the wooden positioning hole 5. The downwardly inclined wooden positioning holes 5 are used to form a temporary limiting structure with the heat insulation sleeves 6. 5 is used to form a force constraint in the opposite direction to the upwardly inclined wooden positioning hole 5 after the bolt is installed, thereby improving the connection stability between the steel connector 2 and the wooden component 1; the position on the steel connector 2 corresponding to the inclined steel positioning hole 51 and the wooden positioning hole 5 in the middle of the wooden component 1 is set as an elongated hole or a quasi-elliptical hole with a vertical height greater than the horizontal width, so that the heat insulation sleeve 6 can pass through the steel connector 2 when it is inclinedly inserted into the wooden positioning hole 5 of the wooden component 1, and avoids the heat insulation sleeve 6 from being forcibly bent or its end damaged due to the hole position restriction of the steel connector 2; the heat insulation pad 3 is provided with a through hole corresponding to the steel positioning hole 51 and the wooden positioning hole 5, the through hole is used for the heat insulation sleeve 6 to pass through, and the heat insulation pad 3 forms a continuous heat insulation layer between the steel connector 2 and the wooden component 1.

[0021] In the above scheme, the reference hole is used as a standard point. By measuring and fixing the point, it is convenient to drill wooden positioning holes 5 and steel positioning holes 51 at corresponding dimensional positions on the wooden component 1 and the steel connector 2. This ensures a one-to-one correspondence between the wooden positioning holes 5 and steel positioning holes 51 on both the wooden component 1 and the steel connector 2. Drilling the wooden positioning holes 5 and steel positioning holes 51 is directly completed using a portable drilling device. Using methods such as... Figure 3 As shown, the steel positioning holes 51 in the middle of the steel connector 2 are all set to an elliptical shape. This design is mainly to ensure that when the wooden positioning holes 5 in the middle of the wooden component 1 are opened at an angle, it does not affect the alignment of the steel positioning holes 51 on the steel connector 2 and the subsequent through-assembly of the heat insulation sleeve 6 and bolts. At the same time, the heat insulation sleeve 6 in this design can prevent the wooden positioning holes 5 from being tilted or non-perpendicular when they are opened on the wooden component 1. The tilted wooden positioning holes 5 are compensated by the heat insulation sleeve 6, which can maintain the stability of the bolt installation and prevent the heat insulation sleeve 6 from being damaged by the bolts. It also eliminates the need to re-inspect whether the bolt installation has caused damage to the heat insulation element, thereby improving the stability and convenience of bolt installation; only the stability of the bolt installation needs to be checked.

[0022] Meanwhile, the above-mentioned heat insulation pad 3 and through hole are designed such that the length and width of the heat insulation pad 3 are larger than the contact surface size of the steel connector 2 and the wooden component 1, and the through hole facilitates the heat insulation sleeve 6 and the heat insulation pad 3 to pass through and be limited.

[0023] Specifically, in this scheme, S2, the heat insulation pad 3 is arranged between the connecting end faces of the wooden component 1 and the steel connector 2; and the heat insulation sleeve 6 is inserted into the channel formed by the wooden positioning hole 5 of the wooden component 1 and the steel positioning hole 51 of the steel connector 2. The channel also includes a through hole on the heat insulation pad 3, and the heat insulation sleeve 6 is used as a temporary limiting pin for positioning the steel connector 2 and the heat insulation pad 3. In this scheme, when installing the steel connector 2, the steel connector 2 and the heat insulation pad 3 are temporarily positioned first. Specifically, two wooden positioning holes 5 in the corresponding middle area of ​​the wooden component 1 are selected as temporary limiting grooves. The heat insulation pad 3 and the steel connector 2 are set in sequence at the steel-wood combination connection point of the wooden component 1. The heat insulation sleeve 6 is passed through the steel positioning hole 51 and the through hole in sequence through the heat insulation pad 3 and the steel connector 2, and inserted into the wooden positioning hole 5 on the wooden component 1. The initial positioning of the steel connector 2 and the heat insulation pad 3 is carried out by means of suspension bearing.

[0024] In the above scheme, the temporary limiting pin in S2 is specifically the heat insulation sleeve 6 that is inclined upward in the middle of the steel connector 2 and the wooden component 1. The temporary limiting pin achieves temporary limiting of the steel connector 2 and the heat insulation pad 3 on the wooden component 1 through friction constraint. It is set through the wooden positioning hole 5 in the middle of the wooden component 1, so as to serve as the positioning basis of the temporary limiting pin (heat insulation sleeve 6). After the heat insulation sleeve 6 is inserted into the upward inclined wooden positioning hole 5 in the middle of the wooden component 1, it will not fall off under the action of gravity. Due to friction and gravity, it can be stably inserted into the wooden positioning hole 5 in the middle of the wooden component 1, which facilitates the subsequent positioning and reinforcement of the steel connector 2 and the heat insulation pad 3 on the wooden component 1.

[0025] Meanwhile, in S1, the steel positioning holes 51 on the steel connector 2 and the wooden positioning holes 5 on the wooden component 1 are set in equal numbers and in the same position, corresponding one-to-one. At the same time, the vertical height of the steel positioning hole 51 in the middle of the steel connector 2 is greater than the width of the middle part of the steel positioning hole 51. By adjusting the height and width of the steel positioning hole 51 in the middle of the steel connector 2, it is convenient to install the heat insulation sleeve 6 in the wooden positioning hole 5 in the middle of the wooden component 1 at an angle.

[0026] Furthermore, in this scheme, S3, insert the heat insulation sleeve 6 into the remaining channel, and glue the heat insulation sleeve 6 and the wooden positioning hole 5 on the wooden component 1 for positioning, and verify the stability of the glue on the heat insulation sleeve 6. After the steel connector 2 and the heat insulation pad 3 are initially positioned, the wooden positioning holes 5 on the wooden component 1 and the steel positioning holes 51 on the steel connector 2 are aligned one-to-one by the spaced heat insulation pad 3. The heat insulation sleeve 6 is then inserted into the wooden positioning holes 5 on the wooden component 1 through the steel positioning holes 51 on the steel connector 2. During this process, the heat insulation sleeve 6 is introduced into the wooden positioning holes 5 on the wooden component 1 by means of anchoring adhesive and tapping, and then positioned after the adhesive has cured. Due to the "T"-shaped structure of the heat insulation sleeve 6 and the elastic extension 604 at the upper end of the "T", the end of the heat insulation sleeve 6 will not be damaged during the tapping insertion positioning. After the heat insulation sleeve 6 is positioned after the adhesive is fixed, the heat insulation sleeve 6 is re-inspected after the adhesive has cured to check whether it is positioned firmly. After it is firmly fixed, the heat insulation sleeve 6, which serves as a temporary limiting pin, is removed and re-fixed, as follows: The thermal insulation sleeve 6, which serves as a temporary limiting pin in S3, is removed during the process of verifying the stability of the adhesive on the thermal insulation sleeve 6. A deformation verification check is then performed. If the deformation in the deformation verification does not exceed the deformation threshold, the thermal insulation sleeve 6 is re-adheded and positioned with the corresponding channel (i.e., the wooden positioning hole 5 on the wooden component 1). The re-inspection of the thermal insulation sleeve 6, which serves as a temporary limiting pin, checks whether severe deformation has occurred during its use as a temporary limiting pin. The deformation threshold of the thermal insulation sleeve 6 is determined by the diameter of the corresponding bolt, i.e., whether the bolt can be inserted into the thermal insulation sleeve 6 and tightened. This involves manual re-inspection and threshold judgment. Thermal insulation sleeves 6 with deformation exceeding the threshold are discarded to avoid damage to the function of the thermal insulation sleeve 6 due to human error. Standard thermal insulation sleeves 6 are then replaced. The deformation threshold also includes whether the low thermal conductivity sleeve 601 is cracked, flattened, or damaged.

[0027] When installing the steel connector 2, first place the heat insulation pad 3 at the connection end face of the wooden component 1, and then cover the outside of the heat insulation pad 3 with the steel connector 2; then select the wooden positioning hole 5 that is set upward in the middle of the wooden component 1 as a temporary limiting hole, and pass the heat insulation sleeve 6 through the corresponding steel positioning hole 51 on the steel connector 2 and the through hole on the heat insulation pad 3 in sequence, and insert it into the wooden positioning hole 5 that is set upward in the middle of the wooden component 1; using the heat insulation sleeve 6 as a temporary limiting pin, instead of using a separate metal positioning pin, can avoid the temporary positioning component from causing squeezing damage to the heat insulation pad 3 or the heat insulation sleeve 6 during construction, and also avoid the metal positioning pin remaining or being misinstalled to form a new node thermal bridge.

[0028] In the above implementation scheme, the use of the heat insulation sleeve 6 in S2 is configured as a "T" shape, and the part of the heat insulation sleeve 6 inserted into the wooden positioning hole 5 on the wooden component 1 is configured as a three-layer cylindrical structure with an outer layer of low thermal conductivity 601, a middle layer of elastic adhesive layer 602, and an inner lining layer 603. The heat insulation gasket 605 is fixed at the inner end of the inner lining layer. Moreover, the outer end of the heat insulation sleeve 6 at the connection with the steel connector 2 is an extension 604 of the elastic adhesive layer 602. The extension 604 is nested with metal wire armor, and another heat insulation gasket 605 is embedded at the connection between the end of the extension 604 and the nut end of the bolt. When the T-shaped heat insulation sleeve 6 is inserted into the wooden positioning hole 5 on the wooden component 1 through the steel positioning hole 51 on the steel connector 2, its upper protrusion can be used to dampen and position the steel connector 2 and the heat insulation pad 3, preventing them from falling off. Furthermore, the upper end of the T-shape of the heat insulation sleeve 6 is an extension 604 of the elastic rubber layer 602. Its elastic rubber material can achieve a heat insulation interval for bolt installation, avoiding direct contact between the nut end of the bolt and the steel connector 2, thus preventing the formation of a node thermal bridge. At the same time, the extension 604 is connected to the heat insulation pad 605 on it, which facilitates the positioning and installation of the heat insulation pad 605. The combination of the heat insulation pad 605 and the extension 604 together achieves heat insulation interval control between the nut end of the bolt and the steel connector 2, preventing damage to the heat insulation pad 605 caused by bolt overload and the formation of a node thermal bridge. Furthermore, in this design, the extension 604 made of elastic rubber material is designed such that when the wooden positioning hole 5 on the wooden component 1 is inclined, after the heat insulation sleeve 6 is inserted into the wooden positioning hole 5 on the wooden component 1, the upper end of the "T"-shaped extension 604 directly contacts the steel connector 2. Overloaded bolts not only prevent damage to the heat insulation gasket 605, but also further improve the stability of the compression fit between the extension 604 and the steel connector 2. The extension 604 is embedded with metal wire armor, which is used to improve the tear resistance of the extension 604 under bolt tightening conditions. It has shape retention capability; the metal wire armor is covered inside the extension 604 and does not form direct contact with the bolt nut and steel connector 2 at the same time, so as not to form a through metal heat transfer path; a heat insulation gasket 605 is embedded at the end of the extension 604, and the heat insulation gasket 605 is located in the pressure-bearing area of ​​the bolt nut end; when the bolt is tightened, the pressure at the nut end is transmitted to the steel connector 2 in sequence through the heat insulation gasket 605 and the extension 604, so that the heat insulation gap is maintained between the nut end and the steel connector 2, and the risk of the heat insulation gasket 605 being over-compressed is reduced by the elastic deformation of the extension 604.

[0029] In this design, the section of the heat-insulating sleeve 6 located within the wooden positioning hole 5 on the wooden component 1 is configured as follows: an outer low-thermal-conductivity sleeve 601, a middle elastic adhesive layer 602, and an inner lining layer 603. In this configuration, the low-thermal-conductivity sleeve 601 directly contacts the wooden component 1, breaking the contact between the bolt and the wooden component 1. Simultaneously, the inner lining layer 603 is tightly fixed to the bolt. During this process, if the bolt and the inner lining layer 603 are not coaxial during installation, the bolt and the low-thermal-conductivity sleeve... There is a coaxial misalignment angle between 601, which causes the inner liner layer 603 to be pried during the bolt tightening process. Under normal conditions, the prying of the non-coaxial state during bolt installation will cause the outer cylinder sidewall of the heat insulation sleeve 6 to be squeezed and damaged. However, in this solution, the inclined prying of the inner liner layer 603 will only cause the deformation of the elastic adhesive layer 602. Through the deformation and elastic recovery of the elastic adhesive layer 602, the low thermal conductivity sleeve 601 is protected during bolt positioning and installation, and the bolt is stably wrapped in the heat insulation sleeve 6 to achieve heat insulation interval control. Therefore, in this scheme, when the bolts and the heat insulation sleeve 6 are connected to each other, the bolt installation is more convenient, eliminating the need for repeated bolt installation checks and preventing the heat insulation sleeve 6 from being damaged due to bolt use, thus avoiding the problem of thermal bridging at the joint. At the same time, the elastic adhesive layer 602 can deform and move the inner lining layer 603, effectively maintaining the stability of the connection with the bolts and reducing the gaps between the two during assembly. Therefore, it is quicker to open the wooden positioning holes 5 on the wooden component 1, especially when assembling steel-wood composite components for high-altitude maintenance. The operation of opening the wooden positioning holes 5 on the wooden component 1, the installation operation of the heat insulation sleeve 6, and the bolt tightening operation are all more convenient, improving the efficiency and energy saving effect. The low thermal conductivity sleeve 601, the elastic adhesive layer 602, and the inner lining layer 603 form a composite sleeve structure consisting of outer heat insulation, central buffer, and inner guidance. This allows the heat insulation sleeve 6 to not only serve as a guide for bolt installation but also to protect the thermal insulation integrity of the low thermal conductivity sleeve 601 when construction deviations exist.

[0030] In the above scheme, the bolts are fixed to the inner liner layer 603 and the extension 604 by threads and adhesive. The elastic adhesive layer 602 deforms under external pressure to position the bolts and prevent direct squeezing contact between the bolts and the low thermal conductivity sleeve 601. The installation of the bolts and the inner liner layer 603 can achieve adhesive drainage and sealing of the residual gap around the perimeter, which can prevent the bolts from loosening, generating residual gaps, and causing air convection thermal bridges and moisture conduction problems in the gaps.

[0031] In this scheme, S4, a through bolt is installed inside the heat insulation sleeve 6 to achieve the assembly and positioning of the wooden component 1 and the steel connector 2. At the same time, heat insulation pads 605 are provided on both the outer end and the inside of the heat insulation sleeve 6 to connect with the bolt. Meanwhile, the bolt does not contact the wooden component 1 and the steel connector 2, forming a heat insulation interval for bolt installation. In the above-mentioned S1, the wooden positioning holes 5 in the middle of the wooden component 1 are inclined in the vertical projection plane, and the two sets of wooden positioning holes 5 in the middle of the wooden component 1 are inclined in opposite directions, which stabilizes the installation firmness of the steel connector. The scheme adopts, for example Figure 1 As shown, the wooden positioning holes 5 in the middle of the wooden component 1 are divided into two groups, namely positioning hole one 501 and positioning hole two 502. The positioning holes one 501 and positioning hole two 502 are inclined upwards and downwards respectively. That is, the upwardly inclined wooden positioning holes 5 can be used to install and position the heat insulation sleeve 6 as a temporary limit pin. At the same time, it can improve the axial tensile external force between the wooden component 1 and the steel connector 2 during use. In particular, the middle layer of the heat insulation sleeve 6 is an elastic adhesive layer 602, which can improve the seismic stability of its bolted connection.

[0032] This solution also provides an implementation method, specifically, auxiliary holes 4 are correspondingly distributed on the wooden component 1 and the heat insulation pad 3 in S1, with the number of auxiliary holes set to 2. At the same time, the heat insulation pad 3 is temporarily positioned through the auxiliary holes 4 and the wooden dowels fixed by adhesive through them. When it is necessary to assemble the heat insulation pad 3 first, the heat insulation pad 3 can be pre-positioned by hanging separately through the auxiliary holes 4, the wooden dowels and adhesive, which facilitates the subsequent assembly and positioning of the steel connector 2. That is, in the construction scenario where the heat insulation pad 3 needs to be fixed first, auxiliary holes 4 corresponding to each other can be opened on the wooden component 1 and the heat insulation pad 3 respectively. Two auxiliary holes 4 are preferably provided and distributed on the upper and lower sides or the left and right sides of the heat insulation pad 3. During construction, the heat insulation pad 3 is attached to the connecting end face of the wooden component 1 so that the auxiliary holes 4 on the heat insulation pad 3 correspond to the auxiliary holes 4 on the wooden component 1. Then, the wooden dowel coated with adhesive is inserted into the auxiliary hole 4 to temporarily fix the heat insulation pad 3 to the wooden component 1. After temporary positioning through the auxiliary hole 4 and the wooden dowel, the construction personnel can continue to install the steel connector 2 and the heat insulation sleeve 6 without the heat insulation pad 3 slipping, thus avoiding the heat insulation pad 3 from shifting due to its own weight or construction disturbance in high-altitude, vertical or lateral assembly environments.

[0033] Based on the above scheme, after the bolt and the heat insulation sleeve 6 are connected and positioned, the residual gap between the bolt and the heat insulation sleeve 6 is checked, and the gap is eliminated by using adhesive. At the same time, the compression and fixing status between the bolt and the extension 604 on the heat insulation sleeve 6 is checked. In this scheme, during the thread positioning process of the heat insulation sleeve 6 and the bolt, adhesive can be further filled to improve the stability of both and avoid the residual gap affecting its positioning stability.

[0034] After the above construction method is completed, a standardized judgment of the construction completion stage is carried out. After all bolts are installed and the adhesive is cured, a final quality inspection is performed on the steel-wood connection node. The final quality inspection includes: checking whether the steel connector 2 and the heat insulation plate 3 are stably attached; checking whether there is obvious misalignment between the heat insulation plate 3 and the wood component 1; checking whether each heat insulation sleeve 6 is fixed in the corresponding wood positioning hole 5; checking whether each bolt is located in the installation channel defined by the heat insulation sleeve 6; and checking whether the bolt nut ends are separated from the steel connector 2 by the heat insulation gasket 605 and the extension 604. When the steel connector 2 When there is no obvious relative slippage between the heat insulation pad 3 and the wooden component 1, the heat insulation sleeve 6 is not loose or damaged, the bolts do not make direct contact with the wooden component 1 or the steel connector 2, and the residual gap between the bolts and the heat insulation sleeve 6 has been sealed with adhesive, the construction of the steel-wood composite structure connection node is confirmed to be completed. When any heat insulation sleeve 6 is damaged, the bolts make direct contact with the steel connector 2 or the wooden component 1, the extension 604 fails to compress, or the residual gap cannot be sealed, the corresponding bolts and heat insulation sleeve 6 should be removed, and the heat insulation sleeve 6 should be re-adheded and positioned, the bolts installed, and the heat insulation interval checked.

[0035] Example 2: Based on Example 1, the present invention further discloses another configuration of the heat insulation sleeve 6. In Example 1, the heat insulation sleeve 6 is prefabricated. In another embodiment, the heat insulation sleeve 6 can also be formed by on-site assembly. During construction, the low thermal conductivity sleeve 601 is first inserted into the wooden positioning hole 5 of the wooden component 1. Then, an elastic adhesive layer 602 is coated or embedded on the inner side of the low thermal conductivity sleeve 601. Then, the inner lining layer 603 is inserted into the inner side of the elastic adhesive layer 602, so that the low thermal conductivity sleeve 601, the elastic adhesive layer 602 and the inner lining layer 603 form a composite cylindrical structure distributed from the outside to the inside. The extension 604 is integrally formed with the elastic adhesive layer 602 or bonded and fixed to the outer end of the low thermal conductivity sleeve 601.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for assembling and constructing an energy-saving steel-wood composite structure, characterized in that, Includes the following steps: S1. Wood positioning holes and steel positioning holes are respectively opened on the wooden components and steel connectors, and at least one reference hole is determined on the wooden components and steel connectors through the wood positioning holes and steel positioning holes, and a through hole is opened on the heat insulation pad. S2. Arrange the heat insulation pad between the connecting end faces of the wooden component and the steel connector; and insert the heat insulation sleeve into the channel formed by the wooden positioning hole of the wooden component and the steel positioning hole of the steel connector. The channel also includes a through hole on the heat insulation pad, and use the heat insulation sleeve as a temporary limiting pin for positioning the steel connector and the heat insulation pad. S3. Insert the heat insulation sleeve into the remaining duct, and glue the heat insulation sleeve and the wooden positioning hole on the wooden component for positioning, and check the stability of the glue on the heat insulation sleeve. S4. Through bolts are installed inside the heat insulation sleeve to assemble and position the wooden components and steel connectors. Heat insulation gaskets are provided on both the outer end and the inside of the heat insulation sleeve to connect with the bolts. At the same time, the bolts do not contact the wooden components and steel connectors, forming a heat insulation interval for bolt installation.

2. The method for assembling and constructing an energy-saving steel-wood composite structure according to claim 1, characterized in that: The heat insulation sleeve is generally set in a "T" shape, and the part of the heat insulation sleeve inserted into the wooden positioning hole on the wooden component is set in a three-layer cylindrical shape, with the outer layer being a low thermal conductivity sleeve, the middle layer being an elastic adhesive layer, and the inner layer being an inner lining layer. The heat insulation gasket is located inside the inner lining layer and fixed at the end. Furthermore, the outer end of the connection between the heat insulation sleeve and the steel connector is an extension of the elastic rubber layer, which is nested with a metal wire armor. Another heat insulation pad is embedded at the end of the extension and at the connection between the bolt nut end.

3. The method for assembling and constructing an energy-saving steel-wood composite structure according to claim 2, characterized in that: The bolts are fixed to the inner liner and the extension by threads and adhesive. The elastic adhesive layer deforms under external pressure to position the bolts and prevent direct compression contact between the bolts and the low thermal conductivity sleeve.

4. A method for assembling and constructing an energy-saving steel-wood composite structure according to claim 2 or 3, characterized in that: The wooden positioning holes in the middle of the wooden component are distributed at an angle in the vertical projection plane. There are two sets of wooden positioning holes in the middle of the wooden component, and the two sets of wooden positioning holes in the middle of the wooden component are inclined in opposite directions, which stabilizes the installation firmness of the steel connector.

5. The method for assembling and constructing an energy-saving steel-wood composite structure according to claim 4, characterized in that: In S1, the steel positioning holes on the steel connector and the wooden positioning holes on the wooden component are set in equal numbers and in the same position, corresponding one-to-one. At the same time, the vertical height of the steel positioning hole in the middle of the steel connector is greater than the width of the middle part of the steel positioning hole. By adjusting the height and width of the steel positioning hole in the middle of the steel connector, it is convenient to install the heat insulation sleeve in the wooden positioning hole in the middle of the wooden component at an inclined position.

6. The method for assembling and constructing an energy-saving steel-wood composite structure according to claim 5, characterized in that: The temporary limiting pin in S2 is specifically a heat insulation sleeve that is inclined upward in the middle of the steel connector and the wooden component. The temporary limiting pin achieves temporary limiting of the steel connector and the heat insulation pad on the wooden component through friction constraint.

7. A method for assembling and constructing an energy-saving steel-wood composite structure according to claim 1 or 6, characterized in that: In S3, the heat insulation sleeve, which serves as a temporary limiting pin, is removed during the process of verifying the stability of the adhesive on the heat insulation sleeve, and a deformation verification is performed. If the deformation in the deformation verification does not exceed the deformation threshold, the heat insulation sleeve is re-adheded and positioned with the corresponding channel.

8. A method for assembling and constructing an energy-saving steel-wood composite structure according to claim 1 or 6, characterized in that: In S1, auxiliary holes are provided one-to-one with each of the wooden components and the heat insulation pad. The number of auxiliary holes is set to 2. At the same time, the heat insulation pad is temporarily positioned through the auxiliary holes and the wooden dowels fixed by adhesive through them.

9. The method for assembling and constructing an energy-saving steel-wood composite structure according to claim 3, characterized in that: In step S4, after the bolt and the heat insulation sleeve are connected and positioned, the residual gap between the bolt and the heat insulation sleeve is checked, and the gap is eliminated by using adhesive. At the same time, the compression and fixing status between the bolt and the extension of the heat insulation sleeve is checked.

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