CN114215097B

CN114215097B - Wood column foot node structure of light wood mixed structure and construction method

Info

Publication number: CN114215097B
Application number: CN202111600214.9A
Authority: CN
Inventors: 谷向飞; 张悦; 林银珠; 沙晓娟
Original assignee: Guangdong Dingyuan Construction Engineering Co ltd
Current assignee: Guangdong Dingyuan Project Management Co.,Ltd.
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2023-06-09
Anticipated expiration: 2041-12-24
Also published as: CN114215097A

Abstract

The application relates to the technical field of building construction, and particularly discloses a wood column foot node structure of a light wood mixed structure and a construction method. The utility model provides a light-duty wood hybrid construction's column foot node structure, including foundation ditch basis, anchor mount pad and the column of setting on foundation ditch basis, set firmly many anchor that are located the foundation ditch basis on the anchor mount pad, there is a reinforced concrete stand on the anchor mount pad, the column includes interior post and outer sleeve, the mounting hole has been seted up to the one end that the interior post is close to the anchor mount pad, there is the reinforcement cage in the reinforced concrete stand, there are a plurality of nuts on the reinforcement cage, the nut is located the reinforced concrete stand, and nut internal thread connection has the screw rod, the free end of the screw rod of keeping away from the nut is pegged graft in the column. The built-in reinforced concrete stand column of this application, the interior pole and the reinforced concrete stand column of wooden post are in the same place with the nut with the outer screw rod, have improved the joint strength between wooden post, anchor mount pad and the foundation ditch basis three.

Description

Wood column foot node structure of light wood mixed structure and construction method

Technical Field

The application relates to the technical field of building construction, in particular to a wood column foot node structure of a light wood mixed structure and a construction method.

Background

The prior common wooden column foot node structure of the light wooden mixed structure mostly adopts a plurality of flaky connecting steel plates to be wholly embedded into the bottom of the wooden column in a piling mode, then one end, far away from the wooden column, of the connecting steel plates is welded on an anchor mounting seat, and anchors on the anchor mounting seat are utilized to be fixed in a foundation pit foundation.

Because the flaky connecting steel plate end surface is similar to a sharp knife edge, an operator can easily embed the flaky connecting steel plate into the wood column completely or partially through the action of external force, but the connecting steel plate can cut the wood column into a plurality of blocks when the connecting steel plate is embedded into the wood column because the flaky connecting steel plate end surface is very sharp, and at the moment, the wood column is easy to split at the cutting interface of the connecting steel plate due to the action of external force, so that the integral structural strength of the wood column is affected.

Disclosure of Invention

In order to improve stability of a wood column foot node structure and improve connection strength among a wood column, an anchor mounting seat and a foundation pit foundation, the application provides the wood column foot node structure of a light wood hybrid structure and a construction method.

In a first aspect, the present application provides a wood column foot node structure of a light wood hybrid structure, which adopts the following technical scheme:

the utility model provides a light wood mixed structure's wood column foot node structure, is in including foundation ditch basis, setting anchor mount pad and wood column on the foundation ditch basis, set firmly many anchors that are located the foundation ditch basis on the anchor mount pad, the integrated into one piece has a reinforced concrete stand on the anchor mount pad, the wood column includes interior post and outer sleeve, the one end that the interior post is close to the anchor mount pad has been seted up and has been used for pegging graft the mounting hole of reinforced concrete stand, be equipped with the steel reinforcement skeleton in the reinforced concrete stand, the welding has a plurality of nuts on the steel reinforcement skeleton, the nut is located the reinforced concrete stand, just nut internal thread connection has the screw rod, keeps away from the nut the free end grafting of screw rod is in the wood column.

Through adopting above-mentioned technical scheme, the existence of reinforced concrete stand has improved the stability of wood column installation, adopts screw rod and nut to link together the interior pole of wood column and reinforced concrete stand through the mode of establishing soon simultaneously, has improved the joint strength between wood column, anchor mount pad and the foundation ditch foundation three for whole wood column foot node structure is more stable, and structural strength is higher. In addition, the setting of outer sleeve has kept the original grain line of spliced pole, and furthest has kept the appearance of spliced pole, has reduced the influence of reinforced concrete structure's existence to spliced pole aesthetic measure.

Preferably, the outer wall of the inner column is provided with a groove, a clamp is arranged in the groove, a plurality of connecting rods are arranged on the clamp, and the connecting rods are fixedly connected with the anchor mounting seat.

The inner column is pulled down and fixed on the anchor mounting seat through the clamp and connecting rod structure, so that the connection between the inner column and the anchor mounting seat is more stable and firm; meanwhile, the connecting rod is positioned between the inner column and the outer sleeve, so that the friction force between the inner column and the outer sleeve is improved, and the stability of the outer sleeve during installation is facilitated.

Preferably, the anchor mounting seat is provided with a clamping groove on the end face deviating from the foundation pit foundation, the wood column is clamped in the clamping groove, and the outer wall of the outer sleeve is abutted against the inner wall of the clamping groove.

Through adopting above-mentioned technical scheme, thereby contradict the outer wall of outer sleeve with the inner wall of draw-in groove and increased the area of contact between outer sleeve and the anchor mount pad for the wood column is more stable when the installation.

Preferably, the anchor mount has a base area greater than the maximum cross-sectional area of the wood post.

Through adopting above-mentioned technical scheme, stability when having improved the vertical placing of wood column has improved the stability when anchor nail mount pad is arranged in the foundation ditch in the work progress simultaneously.

Preferably, the anchor mounting seat is partially or completely poured in the foundation pit foundation formed by concrete pouring.

By adopting the technical scheme, the stability of connection between the anchor mounting seat and the foundation pit foundation is further improved.

Preferably, a glue layer is arranged on the inner wall of the outer sleeve, and the glue layer is positioned between the inner column and the outer sleeve.

Preferably, the material of the glue layer is polyurethane expansion glue, and the preparation method of the polyurethane expansion glue comprises the following steps:

1) Pretreatment of fibrilia: removing impurities from fibrilia, drying, fixing and tensioning two ends of the dried fibrilia, soaking in 10-25 ℃ sodium hydroxide solution for 8-10 hours, removing liquid, washing with dilute acid solution, washing with clear water for 2-3 times, drying, chopping and scattering;

2) Mixing: uniformly mixing polyether polyol, foam stabilizer, triethanolamine and dibutyl tin dilaurate with the weight ratio of (80-100): 1.5-2.5): 1-1.2 to obtain a polyether polyol solution;

3) Immersing the scattered chopped fibrilia obtained in the step 1) into the polyether polyol solution of the step 2), then adding PAPI, wherein the mass ratio of the polyether polyol to the PAPI is 1 (1-1.5), and stirring for 10-15 seconds to obtain the polyurethane swelling adhesive.

By adopting the technical scheme, the stability of connection between the outer sleeve and the inner column is improved. In addition, by utilizing the bonding strength and expansion characteristic of the polyurethane expansion adhesive, the uncured polyurethane expansion adhesive can enter a gap between the inner column and the reinforced concrete column along the screw rod from the threaded hole of the inner column; meanwhile, the anchor rod enters a gap between the inner column and the clamping groove of the anchor mounting seat through the connecting rod, and then flows into the gap between the anchor mounting seat and the foundation pit foundation; after the polyurethane expansion glue is solidified, the wood post, the anchor bolt mounting seat and the foundation pit foundation form a continuous and stable whole under the bonding action of the polyurethane expansion glue, so that the connection strength among the wood post, the anchor bolt mounting seat and the foundation pit foundation is further improved.

Preferably, the polyether polyol is selected from one or more of polyether glycol N-210, polyether glycol N-220 and polyether glycol N-240.

In a second aspect, the application provides a construction method of a wood column foot node structure of a light wood hybrid structure, which adopts the following technical scheme:

a construction method of a wood column foot node structure of a light wood mixed structure comprises the following steps:

binding a steel reinforcement framework, welding the steel reinforcement framework on the anchor mounting seat, and then welding a plurality of nuts on the steel reinforcement framework; simultaneously welding a plurality of anchors at intervals on the end face of the anchor mounting seat, which is away from the reinforcement cage;

cutting a wood column into an inner column and an outer sleeve, simultaneously forming a mounting hole in the center part of the inner column, and forming a plurality of threaded holes in the peripheral side wall of the inner column;

step two, excavating a foundation pit, namely stably placing the anchor mounting seat with the anchor into the foundation pit through an inclined strut support, and enabling the free end of the anchor to be deep close to the bottom of the foundation pit; simultaneously, a screw rod is arranged in the nut in an internal rotation mode, a template is erected outside the steel reinforcement framework, a through hole is formed in the template, and the free end of the screw rod, far away from the nut, penetrates through the through hole of the template and protrudes out of the template;

pouring concrete in the foundation pit, and partially or completely pouring the anchor mounting seat in the foundation pit foundation by adopting the concrete; simultaneously pouring concrete in the template at the steel reinforcement framework, curing for 5-7 days, and rotating the screw rod while curing to enable the screw rod to be independent of the concrete, so as to obtain an anchor mounting seat with reinforced concrete upright posts;

removing the screw rods from the concrete, sleeving the inner column on the reinforced concrete upright column, aligning the threaded holes with the corresponding nuts, and sequentially screwing each screw rod into the corresponding threaded hole and nut;

and fifthly, sleeving the outer sleeve outside the inner column to obtain the column foot node structure of the wood column.

Through adopting above-mentioned technical scheme, easy operation, the process degree of difficulty is little, and structural stability is high, does not need special equipment can accomplish whole operation, has higher marketing prospect.

In summary, the present application has the following beneficial effects:

1. this application embeds reinforced concrete stand, and outer screw rod and nut link together the interior pole of wood column and reinforced concrete stand, have improved the joint strength between wood column, anchor mount pad and the foundation ditch basis three for whole wood column foot node structure is more stable, makes the connection structural strength between wood column, anchor mount pad and the foundation ditch basis higher simultaneously.

2. According to the method, by utilizing the bonding strength and expansion characteristic of the polyurethane expansion adhesive, the uncured polyurethane expansion adhesive can enter a gap between the inner column and the reinforced concrete column along a screw rod from the threaded hole of the inner column; meanwhile, the connecting rod enters a gap between the inner column and the clamping groove of the anchor mounting seat, and then flows into the gap between the anchor mounting seat and the foundation pit foundation. The polyurethane expansion glue solidified at normal temperature can connect the wood post, the anchor bolt mounting seat and the foundation pit foundation into a continuous and stable whole, so that the connection strength among the wood post, the anchor bolt mounting seat and the foundation pit foundation is further improved.

Drawings

Fig. 1 is a schematic structural view of a wood column foot node structure example 1 of a light wood hybrid structure of the present application.

Reference numerals illustrate: 1. a foundation pit foundation; 2. an anchor mounting seat; 21. anchoring nails; 22. a clamping groove; 3. a wood column; 31. an inner column; 312. a mounting hole; 313. a groove; 314. a clamp; 315. a connecting rod; 32. an outer sleeve; 33. a glue layer; 4. reinforced concrete columns; 41. a reinforcement cage; 42. a nut; 43. and (3) a screw.

Detailed Description

The present application is described in further detail below with reference to fig. 1 and examples.

The raw materials used in the examples of the present application are all commercially available products unless otherwise specified.

Polyether glycol N-210 was selected from polyether N210 (1000D) (Shandong, 99% content, CAS number 2019-2-3) from Jining Hongming chemical Co., ltd.

Polyether glycol N-220 is polyether N220 (transparent liquid, viscosity (25deg.C) mPa.s: 130-190) from Jining Hongming chemical Co., ltd.

The polyether glycol N-240 is selected from polyether N240 (brand is Haishihua, model is polypropylene glycol PPG4000, CAS number is 25322-69-4) of Jiangsu Jiaoyang chemical Co.

The foam stabilizer is selected from foam stabilizers (purity 25%, brand RAYNOL Ruinox, model CH-200) of Qingdao Ruinox chemical Co., ltd.

PAPI is selected from polymethylene polyphenyl polyisocyanates (CAS number 9016-87-9) of Hefeijian chemical Co., ltd.

Examples

Example 1: the utility model provides a light-duty wood hybrid construction's column foot node structure, is as shown in fig. 1, from down up in proper order includes foundation ditch basis 1 and anchor mount pad 2 and the column 3 of setting up on foundation ditch basis 1. The foundation pit foundation 1 is a stable foundation structure formed by excavating a foundation pit on a plain soil layer and then pouring concrete. A plurality of anchors 21 which are distributed at intervals are welded on the anchor mounting seat 2, and each anchor 21 extends downwards into the foundation pit and is poured into the foundation pit foundation 1 through concrete; at the same time, one half of the anchor mounts 2 are also poured into the foundation pit foundation 1. The anchor mounting seat 2 can be stably mounted on the ground through the foundation pit foundation 1.

As shown in fig. 1, in order to improve the connection strength between the wooden pillar 3 and the anchor mounting seat 2, the bottom area of the anchor mounting seat 2 is larger than the maximum cross-sectional area of the wooden pillar 3, a clamping groove 22 is formed on the end surface of the anchor mounting seat 2, which is away from the anchor 21, a reinforced concrete column 4 is integrally cast and formed at the center of the bottom wall of the clamping groove 22, a reinforced concrete column 4 is provided with a reinforced skeleton 41, a plurality of nuts 42 are welded on the reinforced skeleton 41, the nuts 42 are positioned in the reinforced concrete column 4, a screw 43 is connected with the internal threads of the nuts 42, and the screw 43 is detachably connected with the reinforced concrete column 4.

As shown in fig. 1, the wood column 3 sequentially comprises an inner column 31 and an outer sleeve 32 from inside to outside, and a mounting hole 312 is formed at one end of the inner column 31 near the anchor mounting seat 2, and the mounting hole 312 in this embodiment is a cuboid hole. The reinforced concrete column 4 is rectangular and is adapted to the mounting hole 312, and when the reinforced concrete column 4 is inserted into the mounting hole 312, the bottom end of the inner column 31 having the mounting hole 312 is abutted against the bottom wall of the clamping groove 22. Meanwhile, a plurality of threaded holes are further formed in the inner column 31, an operator adjusts the positions between the threaded holes and the nuts 42, then screws 43 are sequentially screwed on the corresponding threaded holes and the nuts 42, at this time, the screws 43 are arranged along the radial direction of the inner column 31, one end of each screw 43, which is close to the reinforced concrete column 4, is in threaded connection with the corresponding nut 42, and the other end of each screw 43 is in threaded connection with the corresponding threaded hole of the inner column 31. At this time, the reinforced concrete column 4 and the inner column 31 are stably connected together by the connection between the screw 43, the nut 42 and the screw hole, thereby improving the connection strength between the inner column 31 and the anchor mount 2.

In order to further improve the connection stability between the inner post 31 and the anchor mounting seat 2, as shown in fig. 1, an annular groove 313 is formed on the outer wall of the inner post 31, a clip 314 is disposed in the groove 313, the clip 314 is completely disposed in the groove 313, and the clip 314 in this embodiment may be a stainless steel clip with a thickness of about 10 mm. A plurality of connecting rods 315 are welded on the clamp 314 at intervals, the connecting rods 315 in the embodiment can be steel wires made of stainless steel, and the number of the connecting rods 315 is four. The free end of each connecting rod 315 is welded to the anchor mount 2, whereby the inner leg 31 is pulled down and secured to the anchor mount 2 by the clip 314 and the connecting rod 315, resulting in a more stable and secure connection between the inner leg 31 and the anchor mount 2.

As shown in fig. 1, the outer sleeve 32 is sleeved outside the inner column 31, at this time, the connecting rod 315 is abutted against the inner wall of the outer sleeve 32, meanwhile, the wood column 3 is clamped in the clamping groove 22, and the outer wall of the outer sleeve 32 close to the reinforced concrete column 4 is abutted against the inner wall of the clamping groove 22. The contact area between the outer sleeve 32 and the anchor mounting seat 2 is further increased, and the wood column 3 is more stable in mounting by utilizing the limiting effect of the side wall of the clamping groove 22. In addition, a glue layer 33 is disposed on the inner wall of the outer sleeve 32, the glue layer 33 is disposed between the inner post 31 and the outer sleeve 32, and the connection stability between the inner post 31 and the outer sleeve 32 is further enhanced by using the adhesive property of glue.

The material of the glue layer 33 in this embodiment is polyurethane swelling glue, which comprises the following components: fibrilia 2.4kg, polyether glycol N-210 80kg, foam stabilizer 2kg, triethanolamine 1kg, dibutyl tin dilaurate 1kg, PAPI 90kg.

The preparation method of the polyurethane swelling adhesive comprises the following steps:

1) Pretreatment of fibrilia: removing impurities from 2.4kg of fibrilia, drying, fixing two ends of the dried fibrilia to enable the fibrilia to be in a tensioning state, soaking the fibrilia in 70g/L sodium hydroxide solution at 20 ℃ for 8 hours, removing liquid, washing with dilute hydrochloric acid solution (dilute acid solution) with the mass fraction of 15% for 1 time, washing with clear water for 2 times, drying, cutting and scattering.

2) Mixing: 80kg of polyether glycol N-210, 2kg of foam stabilizer, 1kg of triethanolamine and 1kg of dibutyltin dilaurate were uniformly mixed to obtain a polyether polyol solution.

3) Immersing the chopped fibrilia obtained in the step 1) into the polyether polyol solution of the step 2) for 15 minutes, then adding 90kg of PAPI, and stirring for 10 seconds to obtain the polyurethane expansion gum (in an uncured state, ready for use).

Example 2: a wood column foot node structure of a light wood hybrid structure, which is different from embodiment 1 in that: the components and amounts of the polyurethane intumescent gums described above are different and are shown in Table 1.

1) Pretreatment of fibrilia: removing impurities from 2.5kg of fibrilia, drying, fixing two ends of the dried fibrilia to enable the fibrilia to be in a tensioning state, soaking the fibrilia in 75g/L sodium hydroxide solution at 25 ℃ for 10 hours, removing liquid, washing with 10% dilute hydrochloric acid solution (dilute acid solution) for 2 times, washing with clear water for 3 times, drying, cutting and scattering.

2) Mixing: 90kg of polyether glycol N-210, 1.5kg of foam stabilizer, 1.1kg of triethanolamine and 1kg of dibutyltin dilaurate were uniformly mixed to obtain a polyether polyol solution.

3) Immersing the chopped fibrilia obtained in the step 1) into the polyether polyol solution of the step 2) for 20 minutes, then adding 90kg of PAPI, and stirring for 15 seconds to obtain the polyurethane expansion gum (in an uncured state, ready for use).

Examples 3-4: a wood column foot node structure of a light wood hybrid structure, which is different from embodiment 1 in that: the components and amounts of the polyurethane intumescent gums described above are different and are shown in Table 1.

TABLE 1

Example 5: a wood column foot node structure of a light wood hybrid structure, which is different from embodiment 4 in that: the components of the polyurethane expansion adhesive are different, and the polyurethane expansion adhesive is specifically expressed as follows: polyether glycol N-240 is used instead of polyether glycol N-210.

Comparative example

Comparative example 1: a wood column foot node structure of a light wood hybrid structure, which is different from embodiment 4 in that: the preparation method of the polyurethane swelling adhesive is different and comprises the following specific steps: the fibrilia was not pre-treated and the chopped fibrilia after break-up was directly immersed in the polyether polyol solution of 2) for 15 minutes.

Comparative example 2: a wood column foot node structure of a light wood hybrid structure, which is different from embodiment 4 in that: the polyurethane swelling adhesive has different formulas and specifically comprises the following components: fibrilia 2kg, polyether glycol N-210 79kg, foam stabilizer 1kg, triethanolamine 0.5kg, dibutyl tin dilaurate 0.3kg, PAPI 82kg.

Comparative example 3: a wood column foot node structure of a light wood hybrid structure, which is different from embodiment 4 in that: the polyurethane swelling adhesive has different formulas and specifically comprises the following components: fibrilia 3.5kg, polyether glycol N-210 100kg, foam stabilizer 3kg, triethanolamine 1.5kg, dibutyl tin dilaurate 1kg, PAPI 160kg.

Performance detection analysis

Test one

Test object: the polyurethane swelling gel of example 1-5 was used as test sample 1-5, and the polyurethane swelling gel of comparative example 1-3 was used as control sample 1-3.

The test method comprises the following steps: 60 wood boards with the length of 20cm and the length of 5cm are selected, every two wood boards are in a pair, 30 pairs are added, and 3 pairs are combined into 10 groups. Placing half of the areas of the two boards of each group in an overlapping manner (namely, overlapping areas of 10 cm x 10 cm, which are abbreviated as overlapping areas); meanwhile, 2 grooves with the length of 2cm and the length of 2cm are formed in the overlapping area of each wood board, the glue of the embodiment 1-5, the glue of the comparative example 1-3 and the glue of the commercial product 1-2 are respectively coated in the overlapping area, then the overlapping areas of the two wood boards are overlapped with each other, and after the wood boards are placed in an environment of 70 ℃ for 20 days, the corresponding peeling strength and the tensile strength are detected.

1.1 peel strength was measured by GB/T2790-1995 and the average value was recorded in Table 2.

1.2 tensile strength was measured using the standard of GB/T6329-1996 and the average value was recorded in Table 2.

TABLE 2

As can be seen from examples 1-5, comparative examples 1-3 and commercially available products 1-2 in combination with Table 2, examples 1-5 have a peel strength average of 810-824N/m and a tensile strength average of 20.4-23.3MPa. While the average value of peel strength of comparative examples 1 to 3 is 428 to 435N/m, and the average value of tensile strength is 11.5 to 12.1MPa; the average value of the peel strength of the commercial products 1-2 is 481-509N/m, and the average value of the tensile strength is 10.2-18.3Mpa. From this, the average values of peel strength and tensile strength of examples 1-5 are both greater than those of comparative examples 1-3 and commercial products 1-2, so that the polyurethane expansion glue of examples 1-5 has better expansibility, and the glue density after expansion is higher, and the structural strength is higher.

According to example 4 and comparative example 1, the grooves can be filled with little glue in comparative example 1, so that the modified fibrilia plays a role of skeleton connection, and the foam body after polyurethane expansion can be gripped on the peripheral side of the fibrilia, so that the compactness of the filled glue is improved, and the structure of the grooves on the wood board and the expansion performance of the polyurethane expansion glue are combined, and the adhesiveness and the connection strength are greatly enhanced.

According to the comparison of example 4 and comparative examples 2-3, the amounts of the fibrilia, polyether glycol N-210, foam stabilizer and other components of comparative examples 2-3 were outside the ranges defined herein, the average values of peel strength and tensile strength of comparative examples 2-3 were measured to be smaller than those of examples 1-4, therefore, each component in the polyurethane expansion adhesive in the application can greatly improve the structural strength of the whole wood column foot node structure only in a specific proportion range and after being matched with a specific wood column foot node structure.

According to example 4, comparative examples 1-3 and commercial products 1-2, the average value of the peel strength of commercial product 1 is higher than the average value of the peel strength of commercial product 1 and comparative examples 1-3. From this, it is clear that the commercially available product 1 has a good swelling property, but the adhesive strength is weak, and the structural strength of the swollen glue layer is poor. However, there is almost no glue residue in the groove of the commercially available product 2, and thus it is known that the commercially available product 2 has no expansibility, that is, a common aqueous polyurethane adhesive, and therefore the commercially available product 1 cannot improve the structural strength of the entire wood column foot node structure.

The specific embodiments are illustrative only and not intended to be limiting, as modifications would be required to the embodiments after reading the present specification without inventive contribution, but would be protected by the patent laws within the scope of the claims of the present application.

Claims

1. The construction method of the wood column foot node structure of the light wood mixed structure is characterized in that the wood column foot node structure of the light wood mixed structure comprises a foundation pit foundation (1), an anchor mounting seat (2) and a wood column (3), wherein the anchor mounting seat (2) is fixedly provided with a plurality of anchors (21) positioned in the foundation pit foundation (1), the anchor mounting seat (2) is integrally cast and formed with a reinforced concrete column (4), the wood column (3) comprises an inner column (31) and an outer sleeve (32), one end, close to the anchor mounting seat (2), of the inner column (31) is provided with a mounting hole (312) for inserting the reinforced concrete column (4), the reinforced concrete column (4) is internally provided with a reinforced skeleton (41), the reinforced skeleton (41) is welded with a plurality of nuts (42), the nuts (42) are positioned in the reinforced concrete column (4), the nuts (42) are internally connected with free insertion ends of the nuts (43) far away from the nuts (42), and the free insertion ends of the nuts (43) of the wood column (3 are inserted into the reinforced concrete column (4);

the construction method of the wood column foot node structure of the light wood mixed structure comprises the following steps:

binding a steel reinforcement framework (41), welding the steel reinforcement framework (41) on the anchor mounting seat (2), and then welding a plurality of nuts (42) on the steel reinforcement framework (41); simultaneously, a plurality of anchors (21) are welded on the end face, deviating from the reinforcement cage (41), of the anchor mounting seat (2) at intervals;

cutting a wood column (3) into an inner column (31) and an outer sleeve (32), simultaneously forming a mounting hole (312) at the central part of the inner column (31), and forming a plurality of threaded holes on the peripheral side wall of the inner column (31);

step two, excavating a foundation pit, namely stably placing the anchor mounting seat (2) with the anchor (21) in the foundation pit through an inclined strut bracket, and enabling the free end of the anchor (21) to be deep and close to the bottom of the foundation pit; simultaneously, a screw rod (43) is arranged in the nut (42) in a rotating way, a template is erected outside the steel reinforcement framework (41), a through hole is formed in the template, and the free end of the screw rod (43) far away from the nut (42) penetrates through the through hole of the template and protrudes out of the template;

pouring concrete in the foundation pit, and partially or completely pouring the anchor mounting seat (2) in the foundation pit foundation (1) by adopting the concrete; simultaneously pouring concrete in a template at the steel reinforcement framework (41), curing for 5-7 days, and rotating the screw rod (43) while curing to ensure that the screw rod (43) is independent of the concrete, thereby obtaining an anchor mounting seat (2) with a reinforced concrete upright post (4);

removing the screw rods (43) from the concrete, sleeving the inner columns (31) on the reinforced concrete upright columns (4), aligning the threaded holes with the corresponding nuts (42), and sequentially screwing each screw rod (43) into the corresponding threaded hole and the corresponding nut (42);

and fifthly, sleeving the outer sleeve (32) outside the inner column (31) to obtain the wood column foot node structure.

2. The construction method of the wood column foot node structure of the light wood hybrid structure according to claim 1, wherein a groove (313) is formed in the outer wall of the inner column (31), a clamp (314) is arranged in the groove (313), a plurality of connecting rods (315) are arranged on the clamp (314), and the connecting rods (315) are fixedly connected with the anchor mounting seat (2).

3. The construction method of the wood column foot node structure of the light wood hybrid structure according to claim 2, wherein the end face, away from the foundation pit foundation (1), of the anchor mounting seat (2) is provided with a clamping groove (22), the wood column (3) is clamped in the clamping groove (22), and the outer wall of the outer sleeve (32) is abutted against the inner wall of the clamping groove (22).

4. The construction method of a lightweight wood composite structural wood column footing node structure of claim 1 wherein the anchor mount (2) has a floor area greater than the maximum cross-sectional area of the wood column (3).

5. The construction method of a lightweight wood composite structure wood column foot node structure according to claim 1, characterized in that the anchor mounting base (2) is partially or completely poured into the foundation pit foundation (1) formed by concrete pouring.

6. The construction method of the wood column foot node structure of the light wood hybrid structure according to claim 5, wherein a glue layer (33) is arranged on the inner wall of the outer sleeve (32), and the glue layer (33) is positioned between the inner column (31) and the outer sleeve (32).

7. The construction method of a lightweight wood composite structure wood column foot node structure according to claim 6, wherein the material of the glue layer (33) is polyurethane expansion glue, and the preparation method of the polyurethane expansion glue comprises the following steps:

8. The construction method of a lightweight wood composite structure wood column foot node structure according to claim 7, wherein the polyether polyol is one or more selected from the group consisting of polyether glycol N-210, polyether glycol N-220, and polyether glycol N-240.