Fireproof construction system and fireproof method of heavy wood structure frame

Abstract

The invention belongs to the technical field of wood structure building fire prevention, and relates to a fireproof construction system of a heavy wood structure frame and a fireproof method. The fireproof structure system comprises a fire-fighting main pipeline (1), a plurality of branch water storage tanks (2), a controller (7), a water conveying pipeline (4) arranged on the top face of each wooden cross beam (3) and a plurality of fire detectors (6) arranged on the front side face and the rear side face of each wooden cross beam (3), the water conveying pipeline (4) is connected with one branch water storage tank (2), and an automatic control valve (5) is arranged between the water conveying pipeline (4) and the branch water storage tanks (2). A plurality of spray heads (10) are arranged on the water conveying pipeline (4) at intervals, flow guide structures (15) are arranged on the outer surfaces of the wooden cross beams (3), and the automatic control valves (5) and the fire detectors (6) are connected with the controller (7). The fire endurance of the heavy wood structure bearing component can be prolonged with a small amount of water, and the safety of a heavy wood frame structure building is improved with a low-cost strategy.

Description

Technical Field

[0001] The present invention belongs to the technical field of fire prevention of wooden structure buildings, and relates to a fire prevention structural system and a fire prevention method, and in particular to a fire prevention structural system and a fire prevention method for a heavy wooden structure frame. Background Art

[0002] Timber structures have garnered increasing attention in recent years. However, compared to other countries, the application of timber structures in China started relatively late. Achieving widespread adoption and sustainable development of timber structures still faces numerous bottlenecks, one of the main issues being fire protection design.

[0003] Compared with other structural materials, wood has poor fire resistance and burns faster, releasing large amounts of heat and smoke when a fire occurs. Due to the design and construction characteristics of the building, the connections and fixation methods between wood are often relatively tight, which to a certain extent makes it easy for the fire to spread rapidly in a short period of time. Existing fire prevention measures for wooden structures include: 1. Adopting an automatic fire extinguishing system to automatically detect, control and extinguish fires when a fire occurs, including automatic water sprinkler fire extinguishing systems, automatic gas fire extinguishing systems, automatic dry powder fire extinguishing systems, etc.; 2. Utilizing the carbonization effect to form a carbonized layer on the surface of large-section engineered wood, slowing down the burning rate of the wood inside; 3. Performing flame retardant treatment on wood, including impregnation with solvent-based flame retardants and applying wood structure fire retardant coatings; 4. Adopting a structural fire protection design method to cover the flammable parts of the building with fireproof materials (such as fireproof gypsum board) to form fire separations.

[0004] However, existing fire prevention methods still have certain shortcomings, such as the limited service life of fire retardant coatings, imperfect fire protection facilities, and the incompatibility of active fire prevention measures with the characteristics and needs of wooden structures.

[0005] At the highest point of a building, fire protection features like sprinkler systems are typically located below the beam bottom, failing to directly protect the load-bearing beams. Adding additional fireproofing layers like gypsum board alters the wood's texture, occupies significant space, and results in wasted building materials. Carbonization has limited effectiveness in slowing the burning rate of internal wood. Applying flame retardants to the surface alters the wood's color and texture.

[0006] Therefore, in view of the defects existing in the above-mentioned prior art, it is necessary to develop a new type of fire-proof structural system and fire-proof method for wooden structure buildings. Summary of the Invention

[0007] In order to overcome the defects of the prior art, the present invention proposes a fire-proof construction system and fire-proof method for a heavy timber structure frame, which can extend the fire resistance limit of the heavy timber structure load-bearing components with a very small amount of water, thereby improving the safety of heavy timber frame structure buildings with a low-cost strategy.

[0008] In order to achieve the above object, the present invention provides the following technical solutions:

[0009] A fire protection structure system for a heavy timber structure frame, comprising a fire main pipe and a plurality of branch water tanks connected to the fire main pipe, characterized in that it also comprises a controller, a water supply pipe arranged on the top surface of each wooden beam of the heavy timber structure frame, and a plurality of fire detectors arranged on the front and rear sides of each wooden beam of the heavy timber structure frame, the water supply pipe on the top surface of each wooden beam is respectively connected to one of the branch water tanks and an automatic control valve is provided between them, a plurality of nozzles are arranged at intervals on the water supply pipe and a diversion structure is provided on the outer surface of the wooden beam, the automatic control valve and the fire detector are both connected to the controller, so that the controller can control the automatic control valve according to the signal generated by the fire detector, so that when a fire occurs in the wooden beam, the corresponding automatic control valve can be controlled to open, so that the water in the branch water tank can be sprayed out through the nozzle and form a uniform protective water film on the surface of the wooden beam through the diversion structure.

[0010] Preferably, the front and rear side surfaces and bottom surface of the wooden beam are provided with a plurality of drainage grooves arranged one-to-one corresponding to the plurality of nozzles, a first inclined surface is provided at the junction of the top surface of the wooden beam and the front and rear side surfaces, and a second inclined surface is provided at the junction of the bottom surface of the wooden beam and the front and rear side surfaces.

[0011] Preferably, the number and spacing of the nozzles provided on the water delivery pipeline are calculated as follows:

[0012] The number of the nozzles provided on each of the water delivery pipes is calculated according to the following formula:

[0013]

[0014] Where: N is the number of nozzles; a is the correction coefficient; b is the flow coefficient; ΔP is the pressure difference; h is the length of the wooden beam; s is the cross-sectional area of the wooden beam;

[0015] The spacing between the nozzles is calculated according to the following formula:

[0016] F = h / N;

[0017] Wherein: F is the spacing between the nozzles; h is the length of the wooden beam; N is the number of the nozzles.

[0018] Preferably, a through-length groove is provided on the top surface of the wooden beam and the water pipe is provided in the through-length groove.

[0019] Preferably, a through-length groove is provided on the front and rear sides of the top surface of the wooden beam respectively, and a water pipe is provided in each of the through-length grooves.

[0020] Preferably, the nozzle is a rotatable 8-hole turbulent dripper.

[0021] Preferably, the guide structure is a vertical groove or pattern.

[0022] Preferably, the controller is also connected to an automatic sprinkler fire extinguishing system and an automatic fire alarm system of the wooden structure building using the heavy wooden structure frame.

[0023] In addition, the present invention also provides a fire prevention method for a heavy timber structure frame, characterized in that it adopts the fire prevention construction system of the heavy timber structure frame as described above, and comprises the following steps:

[0024] 1) Filling the plurality of branch water storage tanks with water through the fire main pipeline;

[0025] 2) After the controller receives the fire signal generated by the fire detector, it controls the corresponding automatic control valve to open, so that the water in the branch water tank can be sprayed out through the nozzle and form a uniform protective water film on the surface of the wooden beam through the diversion structure, thereby achieving the purpose of fire prevention.

[0026] Preferably, the fire prevention method for the heavy timber structure frame further comprises the following steps:

[0027] 3) After the controller receives the fire signal generated by the fire detector, it also sends the fire signal to the automatic fire alarm system of the wooden structure building using the heavy wooden structure frame, so that the automatic fire alarm system can notify the people in the wooden structure building to evacuate safely and the firefighters to put out the fire in the form of sound and light as soon as possible at the early stage of the fire.

[0028] Compared with the prior art, the fire protection construction system and fire protection method of the heavy timber structure frame of the present invention have one or more of the following beneficial technical effects:

[0029] 1. The present invention can extend the fire resistance limit of wooden structure load-bearing components with a small amount of water, thereby improving the safety of wooden structure buildings with a low-cost strategy.

[0030] 2. The present invention can effectively improve the fire resistance of load-bearing components of wooden structures and delay the collapse of the main body of wooden structures after fire.

[0031] 3. In the present invention, since the wood has stronger water wettability after carbonization, a carbonized protective layer can be formed on the surface of the wooden beam by spraying water, which has a significant strengthening effect.

[0032] 4. Compared with spray fire extinguishing, the present invention uses less water and has better economic benefits.

[0033] 5. The present invention can be used in conjunction with other fire protection structural design strategies for wooden structures to improve the fire protection performance of the entire wooden structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the composition of the fire protection construction system of the heavy timber structure frame of the present invention.

[0035] Figure 2 It is a schematic diagram of the overall layout of a heavy timber structure frame adopting the fireproof construction system of the present invention.

[0036] Figure 3 It is a structural schematic diagram of wooden beams of the fireproof construction system of the heavy timber structure frame of the present invention.

[0037] Figure 4 It is a front view schematic diagram of the wooden beams of the fireproof construction system of the heavy timber structure frame of the present invention.

[0038] Figure 5 It is a longitudinal cross-sectional view of a wooden beam of the fireproof construction system of the heavy timber structural frame of the present invention.

[0039] Figure 6 It is a transverse cross-sectional view of a wooden beam of the fireproof construction system of the heavy timber structural frame of the present invention.

[0040] Figure 7 It is a flow chart of the fire prevention method of the heavy timber structure frame of the present invention.

[0041] In order to simplify and facilitate the display of other details of the present invention, Figure 2-6 Fire detectors are not shown. DETAILED DESCRIPTION

[0042] Before describing in detail any embodiment of the present invention, it should be understood that the present invention is not limited in its application to the construction and arrangement details of the components set forth in the following description or illustrated in the following figures. The present invention is capable of other embodiments and can be practiced or carried out in various ways. In addition, it should be understood that the words and terms used herein are for descriptive purposes and should not be considered restrictive. The use of "including" or "having" and their variations herein is intended to cover the items and their equivalents set forth below and additional items. Unless otherwise specified or limited, the terms "mounted", "connected", "supported" and "coupled" and their variations are used broadly and cover direct mounting and indirect mounting, connection, support and coupling. In addition, "connected" and "coupled" are not limited to physical or mechanical connections or couplings.

[0043] Furthermore, on the first hand, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore the above terms cannot be understood as limitations on the present invention; on the second hand, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" cannot be understood as a limitation on the quantity.

[0044] In view of the fire prevention difficulties in current wooden structures, especially wooden structures using heavy wooden frames, the present invention provides a fire prevention structural system and fire prevention method for heavy wooden frames. Its purpose is to improve the fire resistance limit of the load-bearing components of wooden structures as a means to solve the problem that existing fire prevention technology cannot properly implement fire prevention treatment on the load-bearing structural frames of wooden buildings, as wood is a combustible material.

[0045] like Figure 2 As shown, the heavy timber frame is constructed from multiple wooden beams 3. Floor slabs can be installed on these beams, providing support for the floor slabs. However, since these beams are located at the highest point of the entire timber structure, existing fire protection systems such as automatic sprinkler systems in timber structures are generally located below the bottom of these beams. Consequently, these beams cannot directly protect the structure in the event of a fire.

[0046] Figure 1 The figure shows the schematic diagram of the fireproof construction system of the heavy timber frame of the present invention. Figure 1 As shown, the fire protection construction system of the heavy timber frame of the present invention includes a fire main pipe 1 and a plurality of branch water storage tanks 2 connected to the fire main pipe 1. The plurality of branch water storage tanks 2 are connected in parallel so that the fire main pipe 1 can fill the plurality of branch water storage tanks 2 with water at the same time.

[0047] The fire protection construction system of the heavy timber structure frame of the present invention further includes a controller 7, a water pipe 4 arranged on the top surface of each wooden beam 3 of the heavy timber structure frame, and a plurality of fire detectors 6 arranged on the front and rear sides of each wooden beam 3 of the heavy timber structure frame.

[0048] The water supply pipe 4 on the top surface of each wooden beam 3 is respectively connected to one of the branch water storage tanks 2 and an automatic control valve 5 is provided between each water supply pipe 4 and the branch water storage tank 2 .

[0049] like Figure 2-6 As shown, a plurality of nozzles 10 are provided at intervals on the water supply pipe 4 and a flow guide structure 15 is provided on the outer surface of the wooden beam 3 .

[0050] The automatic control valve 5 and the fire detector 6 are both connected to the controller 7. Thus, the controller 7 can control the automatic control valve 5 according to the signal generated by the fire detector 6, so that when a fire occurs on the wooden beam 3, the corresponding automatic control valve 5 can be controlled to open, so that the water in the branch water tank 2 can be sprayed out through the nozzle 10 and form a uniform protective water film on the surface of the wooden beam 3 through the diversion structure 15, thereby achieving the purpose of fire prevention.

[0051] Preferably, a water level sensor may be provided in the branch water storage tank 2, and an automatic control valve may be provided between the fire main pipe 1 and each branch water storage tank 2, and both the water level sensor and the automatic control valve may be connected to the controller 7. Thus, when the water level sensor senses that the water level in the branch water storage tank 2 is insufficient, the controller 7 may control the automatic control valve to open, so as to facilitate the filling of water into the branch water storage tank 2.

[0052] In the present invention, a continuous groove 11 is provided on the top surface of the wooden beam 3. The continuous groove 11 extends along the entire length of the wooden beam 3, and the water pipe 4 is disposed within the continuous groove 11. This facilitates securing the water pipe 4 to the top surface of the wooden beam 3.

[0053] Preferably, if the cross-section of the continuous groove 11 is circular, its diameter is slightly larger than the diameter of the water pipe 4, for example, 1 mm larger than the diameter of the water pipe 4. If the cross-section of the continuous groove 11 is square, its side length is slightly larger than the diameter of the water pipe 4, for example, 1 mm larger than the diameter of the water pipe 4. This facilitates the installation and fixation of the water pipe 4 without significantly adversely affecting the structure and strength of the wooden beam 3.

[0054] More preferably, a through-length groove 11 is provided on each of the front and rear sides of the top surface of the wooden beam 3, and a water pipe 4 is provided in each of the through-length grooves 11. This facilitates the water sprayed by the nozzle 10 to flow downward from both the front and rear sides of the wooden beam 3, thereby improving the fire prevention effect.

[0055] More preferably, the diameter of the water delivery pipe 4 is 80-120 mm, thereby being able to meet the water spraying requirements of the nozzle 10 .

[0056] In the present invention, a plurality of drainage grooves 12 are provided on the front and rear sides and bottom surface of the wooden beam 3, corresponding to the plurality of nozzles 10. This ensures that in the early stages of a fire, the water sprayed by the nozzles 10 can fully wet the wooden beam 3 through the drainage grooves 12 in the shortest possible time, thereby achieving a flame retardant effect.

[0057] Preferably, the width of the drainage groove 12 is 50 mm and the depth is 50 mm, thereby enabling rapid drainage while having minimal impact on the structural strength of the wooden beam 3 .

[0058] Furthermore, a first inclined surface 13 is provided at the junction of the top surface and the front and rear side surfaces of the wooden beam 3, and a second inclined surface 14 is provided at the junction of the bottom surface and the front and rear side surfaces of the wooden beam 3. Thus, water sprayed from the nozzle 10 can quickly flow toward the front and rear side surfaces of the wooden beam 3 via the first inclined surface 13, and can also be ensured to quickly flow from the front and rear side surfaces of the wooden beam 3 to the bottom surface of the wooden beam 3 via the second inclined surface 14, thereby facilitating the rapid formation of a protective water film on the surface of the wooden beam 3, thereby improving the fire prevention effect.

[0059] In addition, the outer surface of the wooden beam 3 is provided with the diversion structure 15, such as surface grooves, lines, or water sheathing. The provision of the diversion structure 15 helps the water flow quickly spread over the surface of the wooden beam 3, thereby facilitating the rapid formation of a uniform protective water film on the surface of the wooden beam 3 to achieve the purpose of fire prevention.

[0060] In the present invention, the nozzle 10 is preferably a turbulent dripper. More preferably, the nozzle 10 is a rotatable 8-hole turbulent dripper with a flow rate of 90-100 L / h. This allows the nozzle 10 to more evenly spray water onto the surface of the wooden beam 3, thereby improving the fire prevention effect.

[0061] In actual use, the spacing of the nozzles 10 needs to be considered based on the water pressure of the nozzles 10, the structure of the wooden beams 3, etc., so that a uniform protective water film can be quickly formed on the surface of the wooden beams 3 to achieve the purpose of fire prevention and cost savings. In the present invention, through research and experiments, the inventors found that the number and spacing of the nozzles 10 installed on the water supply pipe 4 can be calculated according to the following method to achieve the above purpose:

[0062] The number of the nozzles 10 provided on each of the water delivery pipes 4 is calculated according to the following formula:

[0063]

[0064] Wherein: N is the number of the nozzles 10; a is the correction coefficient; b is the flow coefficient; ΔP is the pressure difference; h is the length of the wooden beam 3; and s is the cross-sectional area of the wooden beam 3.

[0065] Then, the spacing between the nozzles 10 is calculated according to the following formula:

[0066] F=h / N.

[0067] Wherein: F is the distance between the nozzles 10; h is the length of the wooden beam 3; and N is the number of the nozzles 10.

[0068] By calculating the distance between the nozzles 10 in the above manner and arranging the nozzles 10 according to the distance, a uniform protective water film can be quickly formed on the surface of the wooden beam 3 to achieve the purpose of fire prevention and cost saving.

[0069] In addition, the fireproof construction system of the heavy timber structure frame of the present invention can also be used in conjunction with other fireproof construction design strategies of the timber structure building using the heavy timber structure frame to improve the fireproof performance of the entire timber structure building.

[0070] For example, the controller 7 is also connected to the existing automatic sprinkler system 8 of the wooden structure building using the heavy timber frame. Thus, when the automatic sprinkler system 8 senses a fire, it can send a signal to the controller 7, which controls the automatic control valve 5 to open, allowing the water in the branch water tank 2 to be sprayed out through the nozzle 10 and quickly form a uniform protective water film on the surface of the wooden beam 3 through the diversion structure 15 to protect the wooden beam 3. Furthermore, after receiving the fire signal generated by the fire detector 6, the controller 7 can send the fire signal to the automatic sprinkler system 8, which then automatically sprays water to extinguish the fire. In this way, by combining the fire protection structure system of the heavy timber frame of the present invention with the existing automatic sprinkler system 8, the fire protection performance of the entire wooden structure building can be improved.

[0071] Furthermore, the controller 7 can also be connected to an existing automatic fire alarm system 9 of a wooden structure building using the heavy timber frame. Thus, after receiving a fire signal generated by the fire detector 6, the controller 7 can send the fire signal to the automatic fire alarm system 9, so that the automatic fire alarm system 9 can immediately notify people in the wooden structure building to evacuate safely and firefighters to put out the fire in the early stages of a fire, thereby reducing fire losses.

[0072] Figure 7 The flow chart of the fire protection method of the heavy timber frame of the present invention is shown. Figure 7 As shown, the fire prevention method of the heavy timber structure frame of the present invention comprises the following steps:

[0073] 1. Under normal circumstances, water is added to the multiple branch water storage tanks 2 through the fire main pipeline 1.

[0074] Preferably, a water level sensor may be provided in the branch water tank 2, and an automatic control valve may be provided between the fire main pipe 1 and each branch water tank 2, and both the water level sensor and the automatic control valve may be connected to the controller 7. Thus, when the water level sensor senses that the water level in the branch water tank 2 is insufficient, the controller 7 may control the automatic control valve to open, so as to facilitate the filling of water into the branch water tank 2.

[0075] 2. After the controller 7 receives the fire signal generated by the fire detector 6, it controls the corresponding automatic control valve 5 to open, so that the water in the branch water tank 2 can be sprayed out through the nozzle 10 and form a uniform protective water film on the surface of the wooden beam 3 through the diversion structure 15, thereby achieving the purpose of fire prevention.

[0076] Of course, when the existing automatic sprinkler fire extinguishing system 8 of a wooden structure detects a fire, it can also send a fire signal to the controller 7, which controls the automatic control valve 5 to open, so that the water in the branch water tank 2 can be sprayed out through the sprinkler head 10 and form a uniform protective water film on the surface of the wooden beam 3 through the diversion structure 15. In this way, it is not entirely dependent on the detection results of the fire detector 6, and a better fire prevention effect can be achieved.

[0077] Furthermore, after the controller 7 receives the fire signal generated by the fire detector 6, it can send the fire signal to the automatic sprinkler system 8, which then automatically extinguishes the fire by spraying water. Thus, by combining the fireproofing system of the heavy timber frame of the present invention with the existing automatic sprinkler system 8, the fireproofing performance of the entire timber structure building can be improved.

[0078] Finally, the fire prevention method of the heavy timber structure frame of the present invention may further include the following steps:

[0079] 3. After the controller 7 receives the fire signal generated by the fire detector 6, it also sends the fire signal to the automatic fire alarm system 9 of the wooden structure building using the heavy wooden structure frame, so that the automatic fire alarm system 9 can notify the people in the wooden structure building to evacuate safely and the firefighters to put out the fire in the form of sound and light as soon as possible at the early stage of the fire, thereby reducing fire losses.

[0080] The fireproof construction system and fireproof method of the heavy timber structure frame of the present invention can extend the fire resistance limit of the load-bearing components of the heavy timber structure with a very small amount of water, thereby improving the safety of the heavy timber structure frame with a low-cost strategy. Moreover, since the wood has stronger water wettability after carbonization, a carbonized protective layer can be formed on the surface of the wooden structure by spraying water, which has a significant strengthening effect. Therefore, the fireproof construction system and fireproof method of the heavy timber structure frame of the present invention are particularly suitable for the fire protection design of heavy timber structure buildings represented by CLT (cross-laminated timber). Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, and are not intended to limit the scope of protection of the present invention. Those skilled in the art can modify or make equivalent substitutions to the technical solution of the present invention based on the ideas of the present invention without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A fireproof construction system for a heavy timber frame structure, comprising a fire main pipe (1) and a plurality of branch water storage tanks (2) connected to the fire main pipe (1), characterized in that: The system further comprises a controller (7), a water pipe (4) arranged on the top surface of each wooden beam (3) of the heavy wooden structure frame, and a plurality of fire detectors (6) arranged on the front and rear sides of each wooden beam (3) of the heavy wooden structure frame, wherein the water pipe (4) on the top surface of each wooden beam (3) is respectively connected to one of the branch water storage tanks (2) and an automatic control valve (5) is arranged between them, a plurality of nozzles (10) are arranged at intervals on the water pipe (4), and a flow guide structure ( 15), the automatic control valve (5) and the fire detector (6) are both connected to the controller (7), so that the controller (7) can control the automatic control valve (5) according to the signal generated by the fire detector (6), so that when a fire occurs on the wooden beam (3), the corresponding automatic control valve (5) can be controlled to open, so that the water in the branch water tank (2) can be sprayed out through the nozzle (10) and form a uniform protective water film on the surface of the wooden beam (3) through the diversion structure (15).

2. The fireproof construction system of the heavy timber frame according to claim 1, characterized in that: A plurality of drainage grooves (12) corresponding to the plurality of nozzles (10) are provided on the front and rear side surfaces and the bottom surface of the wooden crossbeam (3); a first inclined surface (13) is provided at the junction of the top surface of the wooden crossbeam (3) and the front and rear side surfaces; and a second inclined surface (14) is provided at the junction of the bottom surface of the wooden crossbeam (3) and the front and rear side surfaces.

3. The fireproof construction system of the heavy timber frame according to claim 2, characterized in that: The number and spacing of the nozzles (10) provided on the water delivery pipe (4) are calculated as follows: The number of the nozzles (10) provided on each of the water delivery pipes (4) is calculated according to the following formula: Wherein: N is the number of the nozzles (10); a is the correction coefficient; b is the flow coefficient; ΔP is the pressure difference; h is the length of the wooden beam (3); s is the cross-sectional area of the wooden beam (3); The spacing between the nozzles (10) is calculated according to the following formula: F = h / N; Wherein: F is the spacing between the nozzles (10); h is the length of the wooden beam (3); and N is the number of the nozzles (10).

4. The fireproof construction system of the heavy timber frame according to claim 3, characterized in that: A through-length groove (11) is provided on the top surface of the wooden crossbeam (3), and the water pipe (4) is arranged in the through-length groove (11).

5. The fireproof construction system of the heavy timber frame according to claim 4, characterized in that: A through-length groove (11) is respectively provided on the front and rear sides of the top surface of the wooden crossbeam (3), and a water pipe (4) is provided in each of the through-length grooves (11).

6. The fireproof construction system of the heavy timber frame according to claim 5, characterized in that: The nozzle (10) is a rotatable 8-hole turbulent flow dripper.

7. The fireproof construction system of the heavy timber frame according to claim 6, characterized in that: The diversion structure (15) is a vertical groove or pattern.

8. The fireproof construction system of a heavy timber structural frame according to any one of claims 1 to 7, characterized in that: The controller (7) is also connected to an automatic water sprinkler fire extinguishing system (8) and an automatic fire alarm system (9) of the wooden structure building using the heavy wooden structure frame.

9. A fire prevention method for a heavy timber frame structure, characterized in that: The fireproof construction system of the heavy timber structure frame according to any one of claims 1 to 8 is adopted, and comprises the following steps: 1) filling the plurality of branch water storage tanks (2) with water through the fire main pipeline (1); 2) After the controller (7) receives the fire signal generated by the fire detector (6), it controls the corresponding automatic control valve (5) to open, so that the water in the branch water storage tank (2) can be sprayed out through the nozzle (10) and form a uniform protective water film on the surface of the wooden beam (3) through the diversion structure (15), thereby achieving the purpose of fire prevention.

10. The fire prevention method for a heavy timber structure frame according to claim 9, characterized in that: The following steps are also included: 3) After the controller (7) receives the fire signal generated by the fire detector (6), it also sends the fire signal to the automatic fire alarm system (9) of the wooden structure building using the heavy wooden structure frame, so that the automatic fire alarm system (9) can notify the personnel in the wooden structure building to evacuate safely and the firefighters to put out the fire in the form of sound and light at the first time when the fire occurs.

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