A lightweight roof anchoring lintel support and its construction method

Abstract

This invention provides a lightweight roof anchoring lintel bracket and its construction method, belonging to the field of photovoltaic bracket construction technology. The bracket includes expansion bolts, steel sections, and photovoltaic bracket columns. The steel sections are connected to anchoring holes via expansion bolts, and the photovoltaic bracket columns are connected above the steel sections. This bracket has a simple structure, is lightweight, and is suitable for non-accessible roofs and some accessible roofs with low load-bearing capacity. The method repairs the damaged original roof waterproofing structure by injecting waterproof sealant into the anchoring holes; applies an interface agent to the roof to increase the adhesion between the roof and the steel sections, improving the self-waterproofing function of the concrete structure; applies structural adhesive to the contact surface between the steel sections and the roof to form flexible waterproofing at the gaps; and sets pre-shrinkage protective concrete around the steel sections to form self-waterproofing. After molding, a waterproof coating is applied to the joint as a waterproofing redundancy. This avoids roof leaks after the photovoltaic bracket is installed.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic support construction technology, and in particular relates to a lightweight roof anchoring lintel support and its construction method. Background Technology

[0002] A solar cell is a thin photovoltaic semiconductor wafer that generates electricity directly from sunlight. Also known as a "solar chip" or "photovoltaic cell," it can instantly output voltage and generate current when a circuit is established, provided it receives sufficient illumination. Solar cells need to be installed at high locations, typically on rooftops.

[0003] The thickness of floor slabs in industrial and civil buildings shall not be less than 80mm, and the thickness of the top floor slab shall not be less than 120mm. Generally, the thickness of the top floor slab in civil buildings is 120mm, and the thickness of the floor slab in industrial buildings is 150mm. The top floor is directly exposed to the outside and must withstand not only rain and heat, but also ice and snow. Therefore, special attention should be paid to the construction of the floor slab. While ensuring the thickness, waterproof and heat insulation measures should also be taken. In cold northern regions, an insulation layer is also required.

[0004] Different locations have different requirements, resulting in complex roof structures. In a typical southern roof structure, drilling holes in the roof to borrow force will inevitably penetrate the original roof structure, damaging the waterproof coating layer, roof insulation layer, roof slope layer, waterproof membrane layer, waterproof protective layer, and roof finishing layer. Each of these layers has a certain thickness, and the anchors need to penetrate through various roof additional layers to reach the load-bearing layer of the roof structure. The length of the anchors needs to be reasonably selected according to the thickness of each layer.

[0005] Because the slab thickness is relatively small and does not match the anchorage length requirements, even if the slab thickness meets the anchorage requirements, the impact of drilling on the roof slab's self-waterproofing must be considered, especially the constraint cracks that may be caused during drilling and expansion bolt installation. In contrast, floor beam structures generally have relatively dense reinforcement, and the beam structure has a certain width and height, and the beam structure dimensions can meet the anchorage requirements. The beam reinforcement can avoid stress cracks caused by expansion bolt construction.

[0006] However, since the density of photovoltaic support columns exceeds the spacing of beams, and the position of the photovoltaic support columns may not exactly match the beam axis, if inverted beams or conventional support counterweight foundations are installed on the roof, the load of many non-accessible roofs and some accessible roofs cannot meet the requirements of the photovoltaic support foundation. Summary of the Invention

[0007] To address the problems existing in the prior art, the present invention provides a lightweight roof anchoring lintel bracket and its construction method. The technical problems to be solved by the present invention are how to reduce the weight of the photovoltaic bracket and how to avoid roof leakage after the photovoltaic bracket is installed.

[0008] To solve the above-mentioned technical problems, the present invention provides a lightweight roof anchoring lintel bracket, including expansion bolts, steel profiles, and photovoltaic support columns;

[0009] Anchoring holes are provided in the roof and beams, and the steel profiles are connected to the anchoring holes by expansion bolts. The photovoltaic support columns are connected above the steel profiles.

[0010] The steel profile is perpendicular to the beam and is connected to multiple beams by expansion bolts. The photovoltaic support column is perpendicular to the steel profile.

[0011] Furthermore, the photovoltaic support columns are welded onto the top of the steel profile.

[0012] This invention provides a construction method for a lightweight roof anchoring lintel support, comprising the following steps:

[0013] Step S1: Perform reverse measurement of beam position and construction layout to determine the drilling location of anchor holes on the roof;

[0014] Step S2: Drill holes, treat the anchor holes, fill the anchor holes with waterproof sealant, insert expansion bolts into the anchor holes, connect the steel section to the beam, and then test the expansion bolts and anchor holes.

[0015] Step S3: After cleaning the roof, apply a layer of interface agent; apply structural adhesive to the contact surface between the steel profile and the roof, connect the steel profile and the beam together using expansion bolts, and then connect the photovoltaic support column above the steel profile.

[0016] Step S4: Set pre-shrinkage protective concrete around the steel profile, and install anti-crack wire mesh on the surface of the pre-shrinkage protective concrete; set formwork on both sides of the pre-shrinkage protective concrete.

[0017] Step S5: After the pre-shrinkage protective concrete has completely solidified, remove the formwork and apply a waterproof coating to the joint between the pre-shrinkage protective concrete and the roof.

[0018] Furthermore, step S1 includes the following steps:

[0019] Step H1: Using the projection method, the beam position of the actual beam in the room is transferred to the ground using an infrared line projector. Considering the influence of the vertical deviation of the beam on the center line of the bottom of the beam, in order to avoid the influence of the deviation between the axis of the bottom and top of the beam, the beam position is determined by the side line of the beam. The intersection line between the top of the beam and the floor slab is projected onto the ground using an infrared line projector to obtain the indoor projection line of the intersection line between the top of the beam and the floor slab.

[0020] Step H2: Take two points on the indoor projection line, and use a ruler to measure and locate these two points along the vertical direction of the indoor projection line to the outdoor ground level. The distance between the two points and the indoor projection line is D.

[0021] Step H3: Using two points on the outdoor ground, use the chalk line method to mark a parallel line that is parallel to the indoor projection line. If there is a drop, use the plumb line and hammer ball method for vertical layout.

[0022] Step H4: Use an infrared ground line laying instrument to lay out the outdoor ground surface, so that the outdoor ground surface line coincides with the ground plane ink line formed in step H3, and then draw it vertically upwards into the air after the coincidence.

[0023] Step H5: Extend the measuring ruler beyond the parapet wall. When the laser line of the infrared measuring instrument coincides with the zero mark of the measuring ruler, record the reading of the measuring ruler as d, which is the length from the chalk line on the ground to the edge of the parapet wall.

[0024] Step H6: Based on the distance D between the indoor projection line and the chalk line on the ground plane, the distance from the parapet wall edge line to the beam side line of the indoor beam is d1 = Dd. Use a level and a plumb line and ball method to mark two points on the center line of the beam on the roof. Use the chalk line method to mark the center line of the beam projection onto the roof. Use the position of the center line of the beam on the roof to determine the position of the anchor plate.

[0025] Furthermore, in step S2, drilling is performed, followed by cleaning, pull-out test, and water storage test of the anchoring hole.

[0026] Furthermore, the pull-out test includes the following steps:

[0027] Step M1: Based on the position of the center line of the roof beam, install anchor plates and connect the anchor plates to the anchor holes with expansion bolts;

[0028] Step M2: Install a support plate above the anchor plate, and connect the two with a tie plate;

[0029] Step M3: Install jacks on both sides of the support plate, with the top surface of the jacks abutting against the lower surface of the support plate, and adjust the stroke of the two jacks to the same position.

[0030] Step M4: Pressurize the jacks. First pressurization: Manually pressurize quickly at first, then slowly, until the calculated pressure is reached. During pressurization, carefully observe the deformation of the jack in contact with the roof surface and the deformation of the support plate. Continue pressing until twice the calculated pressure is reached. Manually and slowly increase the pressure to the set pressure. During the increase, carefully observe the deformation of the jack in contact with the roof surface and the deformation of the support plate. Terminate pressurization according to the principle of dual control of pressure and deformation, that is, stop pressurizing when the set pressure is reached, or stop pressurization when the deformation of the jack and the support plate reaches the preset value.

[0031] Furthermore, in step M1, after cleaning the anchor hole, waterproof sealant is injected into the anchor hole using a gun, with the amount of sealant being equal to the top surface of the hole opening; an expansion bolt is inserted into the anchor hole, and the expansion bolt and expansion tube are driven to the bottom of the hole using a light hammering method. Care should be taken to prevent damage to the bolt threads during hammering. The nut is then tightened with a torque wrench to make the bolt, expansion tube, installation parts and beam body expand and become a single unit. At this time, the waterproof sealant overflows from the anchor hole as it is tightened.

[0032] Furthermore, in step M2, the length of the pull plate L3 is set according to the jack height L1 and the jack stroke length L2; the formula for calculating the length of the pull plate L3 is as follows:

[0033] L3 = L1 + 0.5L2

[0034] The width of the tie plate is one-third of the thickness of the anchor plate; if the tie plate is not long enough, it is lengthened by welding.

[0035] Furthermore, the connection between the anchor plate and the support plate and the pull plate adopts a double-sided welding method. When the support plate and the pull plate are welded, the support plate rotates 45° relative to the plane of the anchor plate. In step M3, the top surface of the jack abuts against the lower surface of the two corners of the support plate.

[0036] Furthermore, the water storage test was conducted using the enclosed tank water storage method, and the water storage test included the following steps:

[0037] Step K1: Remove the bottom of the glue bucket;

[0038] Step K2: After blowing and cleaning the roof, invert the glue bucket onto the roof, place the expansion bolts inside the glue bucket, and use sealant to flexibly connect the glue bucket to the roof.

[0039] Step K3: Pour water into the bucket until it reaches the first water depth. After 24 hours, if there is no leakage or water loss, deepen the water level.

[0040] Step K4: Increase the water depth to the second water depth. After 24 hours, observe that there is no leakage or low water level, which means the water storage test has been passed.

[0041] This invention discloses a lightweight roof anchoring beam support, comprising expansion bolts, steel profiles, and photovoltaic support columns. The steel profiles are integrated with the roof and beams via expansion bolts and anchor holes. The photovoltaic support columns are connected above the steel profiles, which are perpendicular to the beams. The steel profiles are connected to multiple beams via expansion bolts. This support has a simple structure, is lightweight, and is suitable for non-accessible roofs and some accessible roofs with low load-bearing capacity.

[0042] This invention discloses a construction method for a lightweight roof anchoring lintel support. The method involves injecting waterproof sealant into the anchoring holes, utilizing the adhesive's affinity to repair the damaged original roof waterproofing structure. After cleaning the roof, an interface agent is applied to increase the adhesion between the roof and the steel frame, enhancing the self-waterproofing function of the concrete structure. Structural adhesive is applied to the contact surface between the steel frame and the roof, creating a flexible waterproof layer at the gaps and connecting the steel frame to the beam. Pre-shrinkage protective concrete is installed around the steel frame, with a crack-resistant wire mesh on its surface. Templates are placed on both sides of the pre-shrinkage protective concrete. After the concrete has fully solidified, the templates are removed, and a waterproof coating is applied at the junction of the pre-shrinkage protective concrete and the roof as a waterproofing redundancy. The pre-shrinkage concrete provides self-waterproofing, thus preventing roof leaks after the photovoltaic support system is installed. Attached Figure Description

[0043] Figure 1 A schematic diagram of a lightweight roof anchoring lintel support structure. Figure 1 .

[0044] Figure 2 A schematic diagram of a lightweight roof anchoring lintel support structure. Figure 2 .

[0045] Figure 3 This is an assembly diagram of a lightweight roof anchor beam support.

[0046] Figure 4 This is a flowchart of a construction method for a lightweight roof anchoring lintel support.

[0047] Figure label:

[0048] 1. Expansion bolts; 2. Steel profiles; 3. Photovoltaic support columns; 4. Beams; 5. Roof; 6. Crack-resistant wire mesh; 7. Pre-shrink protective concrete. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0050] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0051] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0052] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] To better understand the purpose, structure, and function of this invention, the following detailed description of a lightweight roof anchoring lintel support and its construction method is provided in conjunction with the accompanying drawings.

[0054] Example 1:

[0055] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides a lightweight roof anchoring lintel bracket, which is installed on the roof 5 and includes expansion bolts 1, steel profiles 2, and photovoltaic support columns 3.

[0056] Anchor holes are provided on the roof 5 and the beams. The steel profiles are connected to the anchor holes by expansion bolts. The photovoltaic support columns are connected above the steel profiles.

[0057] The steel section 2 is perpendicular to the beam 4, and the steel section 2 is connected to multiple beams 4 by expansion bolts 1.

[0058] The photovoltaic support column 3 is welded above the steel section 2, and the photovoltaic support column 3 is perpendicular to the steel section 2.

[0059] The side of the photovoltaic support column 3 is connected to the purlin, and the photovoltaic panel is set above the photovoltaic support column 3 and the purlin.

[0060] Example 2:

[0061] like Figure 4 As shown, the present invention discloses a construction method for a lightweight roof anchoring lintel support, which includes the following steps:

[0062] Step S1: Perform reverse measurement of beam position and construction layout to determine the drilling position of anchor holes on roof 5;

[0063] Step S2: Drill holes, then treat the anchor holes, fill the anchor holes with waterproof sealant, insert expansion bolts 1 into the anchor holes, connect the steel section 2 to the beam 4, and then test the expansion bolts 1 and the anchor holes.

[0064] Step S3: After cleaning the roof 5, apply a layer of interface agent; apply structural adhesive to the contact surface between the steel section 2 and the roof 5, insert expansion bolts 1 into the anchor holes, connect the steel section 2 and the beam 4 together, and then connect the photovoltaic support column 3 above the steel section 2.

[0065] Step S4: Set pre-shrinkage protective concrete around the perimeter of the steel section 2, and install anti-crack wire mesh 6 on the surface of the pre-shrinkage protective concrete; set formwork on both sides of the pre-shrinkage protective concrete 7.

[0066] Step S5: After the pre-shrinkage protective concrete 7 has completely solidified, remove the formwork and apply a waterproof coating to the joint between the pre-shrinkage protective concrete 7 and the roof 5.

[0067] Example 3:

[0068] like Figure 4 As shown, the present invention discloses a construction method for a lightweight roof anchoring lintel support, which includes the following steps:

[0069] Step S1: Perform reverse measurement of beam position and construction layout to determine the drilling location of anchor holes on the roof;

[0070] Step S2: Drill holes, then treat the anchor holes, fill the anchor holes with waterproof sealant, insert expansion bolts 1 into the anchor holes, connect the steel section 2 to the beam 4, and then test the expansion bolts 1 and the anchor holes.

[0071] Step S3: After cleaning the roof 5, apply a layer of interface agent; apply structural adhesive to the contact surface between the steel profile 2 and the roof 5, connect the steel profile 2 and the beam 4 together using expansion bolts 1, and then connect the photovoltaic support column 3 above the steel profile 2.

[0072] Step S4: Set pre-shrinkage protective concrete 7 around the steel section 2, and set anti-crack wire mesh 6 on the surface of the pre-shrinkage protective concrete; set formwork on both sides of the pre-shrinkage protective concrete.

[0073] Step S5: After the pre-shrinkage protective concrete has completely solidified, remove the formwork and apply a waterproof coating to the joint between the pre-shrinkage protective concrete and the roof 5.

[0074] The difference between this embodiment and the first embodiment is that:

[0075] Step S1 includes the following steps:

[0076] Step H1: Using the projection method, the beam position of the actual beam in the room is transferred to the ground using an infrared line projector. Considering the influence of the vertical deviation of the beam on the center line of the bottom of the beam, in order to avoid the influence of the deviation between the axis of the bottom and top of the beam, the beam position is determined by the side line of the beam. The intersection line between the top of the beam and the floor slab is projected onto the ground using an infrared line projector to obtain the indoor projection line of the intersection line between the top of the beam and the floor slab.

[0077] Step H2: Take two points on the indoor projection line, and use a ruler to measure and locate these two points along the vertical direction of the indoor projection line to the outdoor ground level. The distance between the two points and the indoor projection line is D.

[0078] Step H3: Using two points on the outdoor ground, use the chalk line method to mark a parallel line that is parallel to the indoor projection line. If there is a drop, use the plumb line and hammer ball method for vertical layout.

[0079] Step H4: Use an infrared ground line laying instrument to lay out the outdoor ground surface, so that the outdoor ground surface line coincides with the ground plane ink line formed in step H3, and then draw it vertically upwards into the air after the coincidence.

[0080] Step H5: Extend the measuring ruler beyond the parapet wall. When the laser line of the infrared measuring instrument coincides with the zero mark of the measuring ruler, record the reading of the measuring ruler as d, which is the length from the chalk line on the ground to the edge of the parapet wall.

[0081] Step H6: Based on the distance D between the indoor projection line and the chalk line on the ground plane, the distance from the parapet wall edge line to the beam side line of the indoor beam is d1 = Dd. Use a level and a plumb line and ball method to mark two points on the center line of the beam on the roof. Use the chalk line method to mark the center line of the beam projection onto the roof. Use the position of the center line of the beam on the roof to determine the position of the anchor plate.

[0082] The infrared laser beam has two lines, horizontal and vertical. When its laser line coincides with the intersection line of the beam and the floor slab, there will be a parallel projection and a projection perpendicular to the line. Therefore, a certain distance can be measured with a ruler using the vertical line and extended to the outside.

[0083] Example 4:

[0084] like Figure 4 As shown, the present invention discloses a construction method for a lightweight roof anchoring lintel support, which includes the following steps:

[0085] Step S1: Perform reverse measurement of beam position and construction layout to determine the drilling position of anchor holes on roof 5;

[0086] Step S2: Drill holes, then treat the anchor holes, fill the anchor holes with waterproof sealant, insert expansion bolts 1 into the anchor holes, connect the steel section 2 to the beam 4, and then test the expansion bolts 1 and the anchor holes.

[0087] Step S3: After cleaning the roof 5, apply a layer of interface agent; apply structural adhesive to the contact surface between the steel profile 2 and the roof 5, connect the steel profile 2 and the beam 4 together using expansion bolts 1, and then connect the photovoltaic support column 3 above the steel profile 2.

[0088] Step S4: Set pre-shrinkage protective concrete around the perimeter of the steel section 2, and install anti-crack wire mesh on the surface of the pre-shrinkage protective concrete; set formwork on both sides of the pre-shrinkage protective concrete.

[0089] Step S5: After the pre-shrinkage protective concrete has completely solidified, remove the formwork and apply a waterproof coating to the joint between the pre-shrinkage protective concrete and the roof 5.

[0090] The difference between this embodiment and the first embodiment is that:

[0091] In step S2, drilling is performed, followed by cleaning, pull-out test, and water storage test of the anchoring hole.

[0092] The pull-out test includes the following steps:

[0093] Step M1: Based on the position of the center line of the roof beam, install the anchor plate and connect the anchor plate to the anchor hole with expansion bolt 1;

[0094] Step M2: Install a support plate above the anchor plate, and connect the two with a tie plate;

[0095] Step M3: Install jacks on both sides of the support plate, with the top surface of the jacks abutting against the lower surface of the support plate, and adjust the stroke of the two jacks to the same position.

[0096] Step M4: Pressurize the jacks. First pressurization: Manually pressurize quickly at first, then slowly, until the calculated pressure is reached. During pressurization, carefully observe the deformation of the jack in contact with the roof surface and the deformation of the support plate. Continue pressing until twice the calculated pressure is reached. Manually and slowly increase the pressure to the set pressure. During the increase, carefully observe the deformation of the jack in contact with the roof surface and the deformation of the support plate. Terminate pressurization according to the principle of dual control of pressure and deformation, that is, stop pressurizing when the set pressure is reached, or stop pressurization when the deformation of the jack and the support plate reaches the preset value.

[0097] The calculated pressure is 4.28 MPa, and the set pressure is 9 MPa.

[0098] In step M1, after cleaning the anchor hole with high-pressure air, waterproof sealant is injected into the anchor hole using a gun, with the amount of sealant applied until the top surface of the sealant is level with the hole opening. An expansion bolt 1 is then inserted into the anchor hole, and the bolt and expansion tube are driven to the bottom of the hole using a light hammering method. Care is taken to avoid damaging the bolt threads during hammering. The nut is then tightened with a torque wrench to ensure that the bolt, expansion tube, mounting component, and beam 4 are tightly integrated. At this point, waterproof sealant overflows from the hole opening as the bolt is tightened.

[0099] In step M2, the length of the pull plate L3 is set according to the jack height L1 and the jack stroke length L2;

[0100] The formula for calculating the length L3 of the pull plate is as follows:

[0101] L3 = L1 + 0.5L2

[0102] The width of the tie plate is one-third of the thickness of the anchor plate; if the tie plate is not long enough, it is lengthened by welding.

[0103] The connection between the anchor plate and the support plate and the tie plate adopts a double-sided welding method. When welding the support plate and the tie plate, the support plate rotates 45° to the plane of the anchor plate.

[0104] In step M3, the top surface of the jack abuts against the lower surfaces of the two corners of the support plate.

[0105] The water storage test was conducted using the enclosed tank water storage method, and the water storage test included the following steps:

[0106] Step K1: Remove the bottom of the glue bucket;

[0107] Step K2: After blowing and cleaning the roof 5, invert the glue bucket onto the roof 5, place the expansion bolt 1 inside the glue bucket, and use sealant to flexibly connect the glue bucket to the roof 5.

[0108] Step K3: Pour water into the bucket until it reaches the first water depth. After 24 hours, if there is no leakage or water loss, deepen the water level.

[0109] Step K4: Increase the water depth to the second water depth. After 24 hours, observe that there is no leakage or low water level, which means the water storage test has been passed.

[0110] The first water storage depth is 15cm; the second water storage depth is 27cm.

[0111] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A construction method for a lightweight roof anchoring lintel support, comprising the construction of a lightweight roof anchoring lintel support. Its features are, in, The roof anchor lightweight lintel support includes expansion bolts, steel profiles, and photovoltaic support columns; Anchor holes are provided in the roof and beams, and the steel profiles are connected to the anchor holes by expansion bolts. The photovoltaic support columns are connected above the steel profiles. The steel profile is perpendicular to the beam body and is connected to multiple beam bodies by expansion bolts. The photovoltaic support column is perpendicular to the steel profile. Includes the following steps: Step S1: Perform reverse measurement of beam position and construction layout to determine the drilling location of anchor holes on the roof; Step S2: Drill holes, treat the anchor holes, fill the anchor holes with waterproof sealant, insert expansion bolts into the anchor holes, connect the steel section to the beam, and then test the expansion bolts and anchor holes. Step S3: After cleaning the roof, apply a layer of interface agent; apply structural adhesive to the contact surface between the steel profile and the roof, connect the steel profile and the beam together using expansion bolts, and then connect the photovoltaic support column above the steel profile. Step S4: Set pre-shrinkage protective concrete around the steel profile, and install anti-crack wire mesh on the surface of the pre-shrinkage protective concrete; set formwork on both sides of the pre-shrinkage protective concrete. Step S5: After the pre-shrinkage protective concrete has completely solidified, remove the formwork and apply a waterproof coating to the joint between the pre-shrinkage protective concrete and the roof. In step S2, drilling is performed, followed by cleaning, pull-out test, and water storage test of the anchor hole. The pull-out test includes the following steps: Step M1: Based on the position of the center line of the roof beam, install anchor plates and connect the anchor plates to the anchor holes with expansion bolts; Step M2: Install a support plate above the anchor plate, and connect the two with a tie plate; Step M3: Install jacks on both sides of the support plate, with the top surface of the jacks abutting against the lower surface of the support plate, and adjust the stroke of the two jacks to the same position. Step M4: Pressurize the jacks. First pressurization: Manually pressurize quickly at first, then slowly, until the calculated pressure is reached. During pressurization, carefully observe the deformation of the jack in contact with the roof surface and the deformation of the support plate. Continue pressing until twice the calculated pressure is reached. Manually and slowly increase the pressure to the set pressure. During the increase, carefully observe the deformation of the jack in contact with the roof surface and the deformation of the support plate. Terminate pressurization according to the principle of dual control of pressure and deformation, that is, stop pressurizing when the set pressure is reached, or stop pressurization when the deformation of the jack and the support plate reaches the preset value. In step M2, the length of the pull plate L3 is set according to the jack height L1 and the jack stroke length L2. The formula for calculating the length L3 of the pull plate is as follows: L3 = L1 + 0.5L2 The width of the tie plate is one-third of the thickness of the anchor plate; if the tie plate is not long enough, it is lengthened by welding.

2. The construction method of the roof anchor lightweight lintel support according to claim 1, characterized in that, Step S1 includes the following steps: Step H1: Using the projection method, the beam position of the actual beam in the room is transferred to the ground using an infrared line projector. Considering the influence of the vertical deviation of the beam on the center line of the bottom of the beam, in order to avoid the influence of the deviation between the axis of the bottom and top of the beam, the beam position is determined by the side line of the beam. The intersection line between the top of the beam and the floor slab is projected onto the ground using an infrared line projector to obtain the indoor projection line of the intersection line between the top of the beam and the floor slab. Step H2: Take two points on the indoor projection line, and use a ruler to measure and locate these two points along the vertical direction of the indoor projection line to the outdoor ground level. The distance between the two points and the indoor projection line is D. Step H3: Using two points on the outdoor ground, use the chalk line method to mark a parallel line that is parallel to the indoor projection line. If there is a drop, use the plumb line and hammer ball method for vertical layout. Step H4: Use an infrared ground line laying instrument to lay out the outdoor ground surface, so that the outdoor ground surface line coincides with the ground plane ink line formed in step H3, and then draw it vertically upwards into the air after the coincidence. Step H5: Extend the measuring ruler beyond the parapet wall. When the laser line of the infrared measuring instrument coincides with the zero mark of the measuring ruler, record the reading of the measuring ruler as d, which is the length from the chalk line on the ground to the edge of the parapet wall. Step H6: Based on the distance D between the indoor projection line and the chalk line on the ground plane, the distance d1 = Dd from the parapet wall edge line to the beam side line of the indoor beam. Use a level and a plumb line and ball method to mark two points on the center line of the beam on the roof. Use the chalk line method to mark the center line of the beam projection onto the roof. Use the position of the center line of the beam on the roof to determine the position of the anchor plate.

3. The construction method of the roof anchor lightweight lintel support according to claim 1, characterized in that, In step M1, after cleaning the anchor hole, inject waterproof sealant into the anchor hole with a gun, and the amount of sealant should be such that the top surface of the sealant is level with the opening of the hole. Insert the expansion bolt into the anchor hole and use a light hammering method to drive the expansion bolt and expansion tube to the bottom of the hole. When hammering, be careful to avoid damaging the bolt threads. Tighten the nut with a torque wrench to make the bolt, expansion tube, installation parts and beam body expand and become a whole. At this time, the waterproof sealant overflows from the anchor hole as it is tightened.

4. The construction method of the roof anchor lightweight lintel support according to claim 1, characterized in that, The connection between the anchor plate and the support plate and the tie plate is made by double-sided welding. When the support plate and the tie plate are welded, the support plate is rotated 45° to the plane of the anchor plate. In step M3, the top surface of the jack abuts against the lower surface of the two corners of the support plate.

5. The construction method of the roof anchor lightweight lintel support according to claim 1, characterized in that, The water storage test was conducted using the enclosed tank water storage method, and the water storage test included the following steps: Step K1: Remove the bottom of the glue bucket; Step K2: After blowing and cleaning the roof, invert the glue bucket onto the roof, place the expansion bolts inside the glue bucket, and use sealant to flexibly connect the glue bucket to the roof. Step K3: Pour water into the bucket until it reaches the first water depth. After 24 hours, if there is no leakage or water loss, deepen the water level. Step K4: Increase the water depth to the second water depth. After 24 hours, observe that there is no leakage or low water level, which means the water storage test has been passed.

6. The construction method of the roof anchor lightweight lintel support according to claim 1, characterized in that, The photovoltaic support column is welded to the top of the steel profile.

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