CN111395661B - Fixing and sealing construction method and structure of splicing seam of water-meeting roof with cantilever structure - Google Patents
Fixing and sealing construction method and structure of splicing seam of water-meeting roof with cantilever structure Download PDFInfo
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- CN111395661B CN111395661B CN202010320265.5A CN202010320265A CN111395661B CN 111395661 B CN111395661 B CN 111395661B CN 202010320265 A CN202010320265 A CN 202010320265A CN 111395661 B CN111395661 B CN 111395661B
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- 238000007789 sealing Methods 0.000 title claims abstract description 136
- 238000010276 construction Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 84
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000010410 layer Substances 0.000 claims description 107
- 239000003795 chemical substances by application Substances 0.000 claims description 28
- 239000002184 metal Substances 0.000 claims description 24
- 239000006260 foam Substances 0.000 claims description 19
- 238000009413 insulation Methods 0.000 claims description 18
- 239000011241 protective layer Substances 0.000 claims description 11
- 229920002943 EPDM rubber Polymers 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 239000004570 mortar (masonry) Substances 0.000 claims description 10
- 230000003044 adaptive effect Effects 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- 230000006978 adaptation Effects 0.000 claims description 8
- 210000004907 gland Anatomy 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 4
- 230000035897 transcription Effects 0.000 claims description 4
- 238000013518 transcription Methods 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
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- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- 230000035939 shock Effects 0.000 abstract description 8
- 238000009825 accumulation Methods 0.000 abstract description 6
- 230000001419 dependent effect Effects 0.000 abstract description 3
- 230000002209 hydrophobic effect Effects 0.000 abstract description 3
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
- E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6801—Fillings therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6803—Joint covers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6806—Waterstops
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6812—Compressable seals of solid form
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
- E04D13/1687—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure the insulating material having provisions for roof drainage
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D15/00—Apparatus or tools for roof working
- E04D15/06—Apparatus or tools for roof working for handling roofing or sealing material in roll form
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Building Environments (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
The invention discloses a fixing and sealing construction method and a structure of a splicing seam of a water-meeting roof with a cantilever structure, wherein an Jiong-shaped fixing and sealing wall body and waterproof and anti-seismic measures adopted by the fixing and sealing wall body form a first waterproof fixing and sealing structure, and a left water retaining wall body, a right water retaining wall body and waterproof and anti-seismic measures adopted by the water retaining wall body form a second waterproof fixing and sealing structure. The original structure of the flush joint of the water-meeting roof with the overhanging structure is well combined and utilized to extend the sealing and fixing structure, the main water-meeting roof and the overhanging roof are integrally waterproof and fixedly sealed, the integrity is strong, the structural strength is high, the shock resistance and the shock resistance are good, the resonance adaptability is good, and the damage of the vibration to the fixedly sealed structure is avoided; the waterproof structure has the advantages that the waterproof structure is waterproof and sealed, hydrophobic drainage is well carried out, long-time water accumulation is prevented, the waterproof structure is dependent on the waterproof performance of the high-molecular waterproof material, even if the high-molecular waterproof material is aged and invalid, the waterproof structure still can have a good waterproof effect, and the waterproof structure is long in service life, safe and reliable.
Description
Technical Field
The invention relates to a waterproof sealing technology for a roof splicing seam, in particular to a sealing construction method and a structure for a water-meeting roof splicing seam with an overhanging structure.
Background
The method has the advantages that the construction is simple, the construction efficiency is high, however, under the condition that the splicing seam is not interfered or impacted, the effect is still good, when the severe conditions such as long-time water accumulation and storage, vibration, storm impact, long-time high-temperature solarization and the like are adopted, the high polymer material bonding material is aged and invalid, the connecting layer of the metal cover body and the roof is torn and seeps water, the strength of the connecting and sealing structure is insufficient, and the waterproof effect and the sealing service life are influenced; the other is that the concrete is covered by a waterproof layer made of high polymer materials, and the structure is also easy to tear under vibration, and once cracks occur, the cracks are prone to water accumulation and water seepage, and the structure is more violent and serious day by day. Moreover, because the overhanging structure and the water-meeting roof generally have a roof enclosure structure, no matter the metal cover plate is covered and sealed or the concrete is filled and sealed, the integration is difficult to achieve, so that the water-meeting roof and the overhanging roof need to be separately subjected to waterproof solid sealing construction, the overall stability of the solid sealing structure is poorer, and the problem is more likely to occur. In summary, the traditional sealing method and structure of the flat joint of the water-meeting roof with the cantilever structure have the defects of poor integrity, short service life, poor shock resistance and the like.
Disclosure of Invention
Aiming at the defects, the invention aims to provide a sealing construction method and a structure of a splicing seam of a water-encountering roof with an overhanging structure, wherein the original structure of the flat seam of the water-encountering roof with the overhanging structure is well combined and utilized to carry out sealing and fixing structure extension, and the main water-encountering roof and the overhanging roof are integrally waterproof and sealed, so that the main water-encountering roof and the overhanging roof are strong in integrity, high in structural strength, good in shock resistance and shock resistance, and good in resonance adaptability, and the sealing structure is prevented from being damaged by shock; the waterproof structure has the advantages that the waterproof structure is waterproof and sealed, hydrophobic drainage is well carried out, long-time water accumulation is prevented, the waterproof structure is dependent on the waterproof performance of the high-molecular waterproof material, even if the high-molecular waterproof material is aged and invalid, the waterproof structure still can have a good waterproof effect, and the waterproof structure is long in service life, safe and reliable.
The technical scheme adopted by the invention is as follows: a solid sealing construction method for a splicing seam of a water-meeting roof with an overhanging structure is characterized by comprising the following steps:
1) the water-meeting roof with the cantilever structure comprises a first water-meeting roof, a first cantilever structure roof, a second water-meeting roof, a second cantilever structure roof and a water-meeting roof enclosing structure wall, wherein the first cantilever structure roof is positioned at the front eave of the first water-meeting roof, the second cantilever structure roof is positioned at the front eave of the second water-meeting roof, the water-meeting roof enclosing structure wall separates the first water-meeting roof and the second water-meeting roof from the first cantilever structure roof and the second cantilever structure roof to form a layout with the rear surface being the water-meeting roof and the front surface being the cantilever structure roof, a main roof splicing seam is formed between the first water-meeting roof and the second water-meeting roof, and an auxiliary roof splicing seam is formed between the first cantilever structure roof and the second cantilever structure roof; the first water-meeting roof, the first overhanging structure roof, the second water-meeting roof and the second overhanging structure roof respectively comprise a roof structure beam plate, a mortar leveling layer, a roof waterproof layer, a concrete protective layer, a heat insulation layer and a concrete leveling layer from bottom to top;
2) penetrating the water-meeting roof enclosure structure wall at the separation position of the main roof splicing seam and the auxiliary roof splicing seam, so that the main roof splicing seam and the auxiliary roof splicing seam are in straight line butt joint to form a complete roof splicing seam;
3) digging out the mortar leveling layer, the roof waterproof layer, the concrete protective layer, the heat preservation layer and the concrete leveling layer on two sides of the roof sealing splicing seam to expose the roof structure beam plate; polishing the exposed surface of the roof structure beam plate to be flat, and then coating a layer of concrete sealing curing agent;
4) building a left water retaining wall body and a right water retaining wall body on the roof structure beam plate on two sides of the roof splicing seam by taking the left edge and the right edge of the roof splicing seam as references; coating a layer of concrete sealing curing agent on the outer side surfaces of the left water retaining wall body and the right water retaining wall body; wherein, the concrete sealing and curing agent in the step 4) and the concrete sealing and curing agent in the step 3) are connected into a whole;
5) an inner step part is formed on the inner sides of the upper parts of the left water retaining wall body and the right water retaining wall body, so that a T-shaped joint space is formed between the left water retaining wall body and the right water retaining wall body; preparing a T-shaped elastic sealing body matched with the T-shaped joint space, and extruding and placing the T-shaped elastic sealing body into the T-shaped joint space, wherein the T-shaped elastic sealing body is in a compressed state, the T-shaped joint space is filled, and the lower section of the T-shaped elastic sealing body downwards extends into the roof splicing joint;
6) outer step parts are formed on the outer sides of the upper parts of the left water retaining wall body and the right water retaining wall body; preparing Jiong-shaped metal sealing covers, and covering the metal sealing covers on the upper parts of the left and right water retaining walls, so that the two sides of the metal sealing covers correspond to the outer step parts formed on the outer sides of the upper parts of the left and right water retaining walls;
7) building Jiong-shaped fixed and sealed walls on the roof structure beam plates at two sides of the roof splicing seam, and forming an adaptive seam at the upper side of the fixed and sealed walls; extruding and filling an elastic foam lining strip into the adaptive seam, and sealing the upper side opening of the adaptive seam by using polyurethane adhesive sealant;
8) coating a layer of concrete sealing curing agent on the outer side surface of the sealing wall body, wherein the concrete sealing curing agent in the step 8) and the concrete sealing curing agent in the step 3) are connected into a whole;
9) pressing the upper opening of the adaptation seam in the step 7) by using an elastic foam insulation board, and laying a waterproof layer on the upper part of the solid-sealed wall body; then pressing the upper waterproof layer and the elastic foam insulation board by using the 'transcription' shaped metal gland, wherein two sides of the 'transcription' shaped metal gland are fixed by virtue of an anchor;
10) laying a left waterproof layer and a right waterproof layer on the lower parts of the left side and the right side of the solid-sealed wall body, wherein the left waterproof layer and the right waterproof layer are connected with the original roof waterproof layer in the step 1) into a whole;
11) and restoring the original concrete protective layer, the heat insulation layer and the concrete leveling layer from bottom to top on the outer side of the solid-sealed wall body.
The roof waterproof layer, the upper waterproof layer, the left waterproof layer and the right waterproof layer mentioned in the steps are ethylene propylene diene monomer waterproof material layers. And 9) in the step 10), the closing-in of the upper waterproof layer, the left waterproof layer and the right waterproof layer on the fixedly sealed wall body is mechanically fixed by an anchor and a pressing strip, and the covering and sealing are carried out by the outer sealing paste of the ethylene propylene diene monomer sheet.
In the step 5), the T-shaped elastic sealing body is made of an extruded foam board material.
And 4) when the left water retaining wall body and the right water retaining wall body are built on the roof structure beam plate, adopting the vertical ribs to anchor the left water retaining wall body and the right water retaining wall body into the roof structure beam plate.
And 7), constructing Jiong-shaped fixed and sealed walls on the roof structure beam plates on two sides of the roof splicing seam, namely, adopting vertical ribs to anchor the fixed and sealed walls into the roof structure beam plates.
Before the construction of the step 7), drilling floor drain holes in roof structure beam plates at the head and tail ends between the left water retaining wall body and the fixed sealing wall body and at the head and tail ends between the right water retaining wall body and the fixed sealing wall body, and arranging floor drain pipes in the floor drain holes; and the space between the floor drain pipe and the floor drain hole is sealed by the adhesive water stop and the concrete sealing curing agent.
The fixing and sealing structure of the splicing seam of the water-meeting roof with the overhanging structure is formed by the construction method.
The invention has the following advantages: the original structure of the flush joint of the water-meeting roof with the overhanging structure is well combined and utilized to extend the sealing and fixing structure, the main water-meeting roof and the overhanging roof are integrally waterproof and fixedly sealed, the integrity is strong, the structural strength is high, the shock resistance and the shock resistance are good, the resonance adaptability is good, and the damage of the vibration to the fixedly sealed structure is avoided; the waterproof structure has the advantages that the waterproof structure is waterproof and sealed, hydrophobic drainage is well carried out, long-time water accumulation is prevented, the waterproof structure is dependent on the waterproof performance of the high-molecular waterproof material, even if the high-molecular waterproof material is aged and invalid, the waterproof structure still can have a good waterproof effect, and the waterproof structure is long in service life, safe and reliable. The comprehensiveness is mainly embodied in the following aspects: firstly, a 'Jiong' -shaped fixed and sealed wall body and a waterproof and anti-seismic measure adopted by the wall body form a first waterproof fixed and sealed structure which is stable and reliable, and particularly an adaptive seam is formed on the upper side of the fixed and sealed wall body; extruding and filling an elastic foam lining strip into the adaptation seam,' pressing an upper opening of the adaptation seam by using an elastic foam insulation board, and laying a waterproof layer on the upper part of the fixedly sealed wall body; then the upper waterproof layer and the elastic foam heat-insulation plate are pressed by the aid of the 'clamping-combining' shaped metal gland, so that the waterproof sealing effect is achieved, the adaptability effect is achieved when the deformation joint is widened or narrowed during vibration, and the damage of a waterproof sealing structure is avoided; in general terms, the elastic foam lining strips and the elastic foam heat-insulation boards have deformation adaptability, can be well suitable for the opening and closing of deformation joints generated during vibration, and avoid the Jiong-shaped fixed and sealed wall body from being torn. The left and right water retaining walls and the waterproof and anti-seismic measures adopted by the water retaining walls form a second waterproof sealing structure with double insurance; and the sealing structure that the T-shaped elastic sealing body is extruded and placed in the T-shaped joint space and the Jiong-shaped metal sealing cover is covered on the upper parts of the left water retaining wall body and the right water retaining wall body is adopted, so that the waterproof sealing effect is realized, the adaptability effect is realized when the deformation joint is widened or narrowed during vibration, and the damage of the waterproof sealing structure is avoided. And thirdly, a floor drain structure is designed between the first waterproof sealing structure and the second waterproof sealing structure, so that even if the first waterproof sealing structure fails and water enters, the entered water can be drained in time, and the water accumulation is avoided.
The present invention will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a schematic plan view of a water-encountering roof with an overhanging structure;
FIG. 2 is a first schematic cross-sectional view of a water-encountering roof with a cantilever structure;
FIG. 3 is a schematic diagram of a cross-sectional structure of a water-encountering roof with a cantilever structure;
FIG. 4 is an enlarged schematic view of a portion A of FIG. 3;
FIG. 5 is an enlarged schematic view of a portion B of FIG. 3;
FIG. 6 is an enlarged schematic view of a portion C of FIG. 3;
FIG. 7 is a schematic view of the arrangement structure of the floor drain pipe;
in the figure: a first water-encountering roof 1; a first overhanging structure roof 2; a second water-encountering roof 3; a second overhanging structure roof 4; a water-meeting roof enclosure structure wall 5; a roof structure beam slab 6; a mortar leveling layer 7; a roof waterproof layer 8; a concrete protective layer 9; an insulating layer 10; a concrete leveling layer 11; a roof splice joint 12; a concrete sealing and curing agent 13; a left water retaining wall 14; a right water retaining wall 15; vertical ribs 16; a T-shaped elastic seal body 17; a metal cover 18; fixedly sealing the wall 19; an adaptation slit 20; a resilient foam backing strip 21; a polyurethane adhesive sealant 22; an elastic foam insulation board 23; an upper waterproof layer 24; a metal gland 25; a left waterproof layer 26; a right waterproof layer 27; an anchor 28; a bead 29; an ethylene propylene diene monomer sheet outer sealing paste 30; a floor drain pipe 31; a stick-on water stop 32.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that if directional indications (such as … …, which is up, down, left, right, front, back, top, bottom, inner, outer, vertical, transverse, longitudinal, counterclockwise, clockwise, circumferential, radial, axial) are provided in the embodiments of the present invention, the directional indications are only used for explaining the relative position relationship, motion condition, etc. of the components at a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first" or "second", etc. in the embodiments of the present invention, the description of "first" or "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 7, the fixing and sealing construction method for the joint seam of the water-encountering roof with the overhanging structure provided by the embodiment includes the following steps:
1) the water-meeting roof with the overhanging structure comprises a first water-meeting roof 1, a first overhanging structure roof 2, a second water-meeting roof 3, a second overhanging structure roof 4 and a water-meeting roof enclosure wall 5, wherein the first overhanging structure roof 2 is positioned at the front eave of the first water-meeting roof 1, the second overhanging structure roof 4 is positioned at the front eave of the second water-meeting roof 3, the water-meeting roof enclosure wall 5 separates the first water-meeting roof 1 and the second water-meeting roof 3 from the first overhanging structure roof 2 and the second overhanging structure roof 4 to form a layout with the water-meeting roof at the back and the overhanging structure roof at the front, a main roof splicing seam is formed between the first water-meeting roof 1 and the second water-meeting roof 3, and an auxiliary roof splicing seam is formed between the first overhanging structure roof 2 and the second overhanging structure roof 4; the first water-meeting roof 1, the first overhanging structure roof 2, the second water-meeting roof 3 and the second overhanging structure roof 4 respectively comprise a roof structure beam plate 6, a mortar leveling layer 7, a roof waterproof layer 8, a concrete protective layer 9, a heat insulation layer 10 and a concrete leveling layer 11 from bottom to top;
here, it is to be generally stated that, a roof with water and a cantilever structure are all based on a roof structure beam plate 6, and a mortar leveling layer 7, a roof waterproof layer 8, a concrete protection layer 9, a heat insulation layer 10 and a concrete leveling layer 11 are sequentially laid; this is a conventional roof layer construction. Of course, depending on the actual situation, there may be variations, for example, if the surface of the roof structure beam plate 6 is sufficiently flat, the mortar leveling layer may not be made; however, the roof waterproof layer 8 (generally made of ethylene propylene diene monomer waterproof material, and laid by coiled materials or sheets) is necessary; otherwise, the roof is not waterproof, and the sealing and the water proofing of the splicing seams are not mentioned.
2) At the separation position of the splicing seam of the main roof and the splicing seam of the auxiliary roof, the wall 5 of the envelope structure of the water-encountering roof is perforated (a hole is perforated, the area of the hole is slightly larger than that of a solid-sealed waterproof structure to be constructed subsequently), so that the splicing seam of the main roof and the splicing seam of the auxiliary roof are in butt joint in a straight line to form a complete splicing seam 12 of the roof;
it should be noted that the step is mainly to form a through seam, and to subsequently establish an integral solid-sealed waterproof structure, instead of establishing a solid-sealed waterproof structure for the main roof splicing seam and the auxiliary roof splicing seam respectively. The integrity and the reliability of the solid-sealed waterproof structure are improved.
3) Excavating the mortar leveling layer 7, the roof waterproof layer 8, the concrete protective layer 9, the heat preservation layer 10 and the concrete leveling layer 11 at two sides of the sealing roof splicing seam 12 (excavating a part to prepare for subsequently building a wall body), and exposing the roof structural beam plate 6; polishing the surface of the exposed roof structural beam plate 6 to be flat, and then coating a layer of concrete sealing curing agent 13;
here, the concrete sealing curing agent 13 is commercially available, and its function is largely the same as or different from that of the concrete sealing curing agent. In the construction method, the sealing and waterproof functions are mainly realized, and the original mortar leveling layer is replaced to realize the leveling function.
4) Building a left water retaining wall 14 and a right water retaining wall 15 on the roof structure beam plate 6 on two sides of the roof splicing seam 12 by taking the left edge and the right edge of the roof splicing seam 12 as a reference; coating a layer of concrete sealing and curing agent 13 on the outer side surfaces of the left water retaining wall body 14 and the right water retaining wall body 15; wherein, the concrete sealing and curing agent 13 in the step 4) and the concrete sealing and curing agent 13 in the step 3) are connected into a whole; when a left water retaining wall body 14 and a right water retaining wall body 15 are built on the roof structure beam plate 6, the vertical ribs 16 are adopted to be anchored in the roof structure beam plate 6, and then concrete is used for building a wall;
it should be noted that, taking the left and right edges of the roof splicing seam 12 as a reference, the edges of the left and right water retaining walls 14 and 15 are aligned with the left and right edges of the roof splicing seam 12, respectively.
5) An inner step part is formed on the inner sides of the upper parts of the left water retaining wall body 14 and the right water retaining wall body 15, so that a T-shaped joint space in a T shape is formed between the left water retaining wall body 14 and the right water retaining wall body 15; preparing a T-shaped elastic sealing body 17 matched with the T-shaped joint space, and extruding and placing the T-shaped elastic sealing body 17 into the T-shaped joint space, wherein the T-shaped elastic sealing body 17 is in a compressed state, the T-shaped joint space is filled, and the lower section of the T-shaped elastic sealing body 17 extends downwards into the roof splicing joint 12; wherein, the T-shaped elastic sealing body 17 is an extruded foam board material;
it should be noted here that there are several points: the T-shaped joint space is used for better installing and arranging the T-shaped elastic sealing body 17 and has positioning and stabilizing functions; conventionally, the T-shaped elastic sealing body 17 must be in a certain compression state, so that the T-shaped elastic sealing body has adaptability and can be adapted to the vibration opening and closing of the splicing seam; the lower section of the T-shaped elastic sealing body 17 must extend downwards into the splicing seam of the roof to ensure the resonance consistency of the left water retaining wall body 14, the right water retaining wall body 15 and the splicing seam, and the T-shaped elastic sealing body 17 has better elastic deformation and recovery effects.
6) Outer step parts are formed on the outer sides of the upper parts of the left water retaining wall body 14 and the right water retaining wall body 15; preparing an Jiong-shaped metal sealing cover 18, and covering the metal sealing cover 18 on the upper parts of the left and right water retaining walls 14 and 15, so that the two sides of the metal sealing cover 18 correspond to the outer step parts formed on the outer sides of the upper parts of the left and right water retaining walls 14 and 15;
it should be noted that, the metal sealing cover 18 is generally made of a stainless steel material, and has a certain elastic adaptability, and the specially designed "Jiong" shaped structure is added to match with the outer step parts of the upper parts of the left and right water retaining walls 14 and 15, so that the metal sealing cover has a good sealing effect and an adaptive effect, and even if the deformation joint is opened and closed to a large extent under violent vibration, the metal sealing cover itself will not break.
7) Building Jiong-shaped fixed sealing walls 19 on roof structure beam plates at two sides of the roof splicing seam 12 (the fixed sealing walls 19 enclose the left water retaining wall 14 and the right water retaining wall 15 inside), and forming an adaptive seam 20 at the upper side of the fixed sealing walls 19; an elastic foam lining strip 21 is extruded and filled into the adaptation seam 20, and then the upper side opening of the adaptation seam 20 is sealed by polyurethane adhesive sealant 22 (the same type of products can be selected from the market); wherein, the fixed and sealed wall bodies 19 in the shape of Jiong are built on the roof structure beam plates 6 at the two sides of the roof splicing seams 12, and are anchored in the roof structure beam plates by adopting vertical ribs;
8) coating a layer of concrete sealing curing agent 13 on the outer side surface of the sealing wall body 19, wherein the concrete sealing curing agent 13 in the step 8) and the concrete sealing curing agent 13 in the step 3) are connected into a whole;
9) pressing the upper opening of the adaptation seam 20 in the step 7) by using an elastic foam insulation board 23, and laying a waterproof layer 24 on the upper part of the solid sealing wall body 19; then, the upper waterproof layer 24 and the elastic foam insulation board 23 are pressed by the 'clamping part' shaped metal gland 25, wherein two sides of the 'clamping part' shaped metal gland 25 are fixed through an anchor (the anchor is fixed by being driven in the anchor);
10) laying a left waterproof layer 26 and a right waterproof layer 27 on the lower parts of the left side and the right side of the solid sealing wall body 19, wherein the left waterproof layer 26 and the right waterproof layer 27 are connected with the original roof waterproof layer 8 in the step 1) into a whole;
11) and restoring the original concrete protective layer 9, the heat insulation layer 10 and the concrete leveling layer 11 from bottom to top on the outer side (the excavated part) of the solid sealing wall body 19. It should be noted here that the original concrete protective layer, insulation layer and concrete leveling layer are better options to be restored, and the concrete can be directly filled with concrete, but the effect is certainly not good as the original restoration.
The roof waterproof layer 8, the upper waterproof layer 24, the left waterproof layer 26 and the right waterproof layer 27 mentioned in the above steps are ethylene propylene diene monomer waterproof material layers. Step 9) and step 10), the closing of the upper waterproof layer 24, the left waterproof layer 26 and the right waterproof layer 27 on the sealed wall 19 is mechanically fixed by the anchor 28 and the pressing strip 29, and the sealing is covered and sealed by the ethylene propylene diene monomer sheet material external sealing paste 30.
Before the construction of the step 7), drilling floor drain holes in the roof structure beam plates 6 at the head and tail ends between the left water retaining wall body 14 and the solid sealing wall body 19 and at the head and tail ends between the right water retaining wall body 15 and the solid sealing wall body 19, and arranging floor drain pipes 31 in the floor drain holes; the space between the floor drain pipe 31 and the floor drain hole is sealed by the adhesive water stop 32 and the concrete sealing and curing agent 13.
The fixing and sealing structure of the splicing seam of the water-meeting roof with the overhanging structure is formed by the construction method.
Construction attention: 1. the bar planting glue used for anchoring the steel bars is suitable for anchoring the steel bars in cracked concrete, the fire resistance grade of the bar planting glue meets the F120 requirement, and the hui fish FIV360S strong bar planting glue is recommended to be adopted. 2. The concrete sealing curing agent (coating) and the sealing construction joint material used for the project are not lower than the requirements of technical performance indexes of Krytstol like products, particularly the water self-healing crack capacity is not less than 0.6mm, and the crystal growth speed is not less than 0.2mm every week. 3. The ethylene propylene diene monomer waterproof sheet, the base layer adhesive, the lap joint adhesive, the inner sealing paste and the outer sealing paste are matched sleeve materials, and the performance index of the ethylene propylene diene monomer waterproof sheet is not lower than the technical performance index of the Carley similar product.
The invention is not limited to the above embodiment, and other fixing and sealing construction methods and structures of the splicing seam of the water-meeting roof with the cantilever structure, which are obtained by adopting the same or similar technical characteristics as the above embodiment of the invention, are within the protection scope of the invention.
Claims (8)
1. A solid sealing construction method for a splicing seam of a water-meeting roof with an overhanging structure is characterized by comprising the following steps:
1) the water-meeting roof with the overhanging structure comprises a first water-meeting roof, a first overhanging structure roof, a second water-meeting roof, a second overhanging structure roof and a water-meeting roof enclosure wall, wherein the first overhanging structure roof is positioned at the front eave of the first water-meeting roof, the second overhanging structure roof is positioned at the front eave of the second water-meeting roof, the first water-meeting roof, the second water-meeting roof and the first overhanging structure roof are separated by the water-meeting roof enclosure wall, the arrangement that the rear surface of the water-meeting roof enclosure wall is the water-meeting roof and the front surface of the water-meeting roof enclosure wall is the overhanging structure roof is formed, a main splicing seam is formed between the first water-meeting roof and the second water-meeting roof, and an auxiliary roof splicing seam is formed between the first overhanging structure roof and the second overhanging structure roof; the first water-meeting roof, the first overhanging structure roof, the second water-meeting roof and the second overhanging structure roof respectively comprise a roof structure beam plate, a mortar leveling layer, a roof waterproof layer, a concrete protective layer, a heat insulation layer and a concrete leveling layer from bottom to top;
2) penetrating the water-meeting roof enclosure structure wall at the separation position of the main roof splicing seam and the auxiliary roof splicing seam, so that the main roof splicing seam and the auxiliary roof splicing seam are in straight line butt joint to form a complete roof splicing seam;
3) digging out the mortar leveling layer, the roof waterproof layer, the concrete protective layer, the heat preservation layer and the concrete leveling layer on two sides of the roof sealing splicing seam to expose the roof structure beam plate; polishing the exposed surface of the roof structure beam plate to be flat, and then coating a layer of concrete sealing curing agent;
4) building a left water retaining wall body and a right water retaining wall body on the roof structure beam plate on two sides of the roof splicing seam by taking the left edge and the right edge of the roof splicing seam as references; coating a layer of concrete sealing curing agent on the outer side surfaces of the left water retaining wall body and the right water retaining wall body; wherein, the concrete sealing and curing agent in the step 4) and the concrete sealing and curing agent in the step 3) are connected into a whole;
5) an inner step part is formed on the inner sides of the upper parts of the left water retaining wall body and the right water retaining wall body, so that a T-shaped joint space is formed between the left water retaining wall body and the right water retaining wall body; preparing a T-shaped elastic sealing body matched with the T-shaped joint space, and extruding and placing the T-shaped elastic sealing body into the T-shaped joint space, wherein the T-shaped elastic sealing body is in a compressed state, the T-shaped joint space is filled, and the lower section of the T-shaped elastic sealing body downwards extends into the roof splicing joint;
6) outer step parts are formed on the outer sides of the upper parts of the left water retaining wall body and the right water retaining wall body; preparing Jiong-shaped metal sealing covers, and covering the metal sealing covers on the upper parts of the left and right water retaining walls, so that the two sides of the metal sealing covers correspond to the outer step parts formed on the outer sides of the upper parts of the left and right water retaining walls;
7) building Jiong-shaped fixed and sealed walls on the roof structure beam plates at two sides of the roof splicing seam, and forming an adaptive seam at the upper side of the fixed and sealed walls; extruding and filling an elastic foam lining strip into the adaptive seam, and sealing the upper side opening of the adaptive seam by using polyurethane adhesive sealant;
8) coating a layer of concrete sealing curing agent on the outer side surface of the sealing wall body, wherein the concrete sealing curing agent in the step 8) and the concrete sealing curing agent in the step 3) are connected into a whole;
9) pressing the upper opening of the adaptation seam in the step 7) by using an elastic foam insulation board, and laying a waterproof layer on the upper part of the solid-sealed wall body; then pressing the upper waterproof layer and the elastic foam insulation board by using the 'transcription' shaped metal gland, wherein two sides of the 'transcription' shaped metal gland are fixed by virtue of an anchor;
10) laying a left waterproof layer on the lower part of the left side of the solid-sealed wall body, and laying a right waterproof layer on the lower part of the right side of the solid-sealed wall body, wherein the left waterproof layer and the right waterproof layer are connected with the original roof waterproof layer in the step 1) into a whole;
11) and restoring the original concrete protective layer, the heat insulation layer and the concrete leveling layer from bottom to top on the outer side of the solid-sealed wall body.
2. The method for fixing and sealing the splicing seam of the water-encountering roof with the cantilever structure as claimed in claim 1, wherein the roof waterproof layer, the upper waterproof layer, the left waterproof layer and the right waterproof layer are ethylene propylene diene monomer waterproof material layers.
3. The method for fixing and sealing the splicing seam of the water-meeting roof with the cantilever structure as claimed in claim 2, wherein in the step 9) and the step 10), the closing ports of the upper waterproof layer, the left waterproof layer and the right waterproof layer on the fixing and sealing wall are mechanically fixed by an anchor and a pressing bar, and are covered and sealed by the ethylene propylene diene monomer sheet outer sealing paste.
4. The method for fixing and sealing the joint seam of the water-encountering roof with the cantilever structure as claimed in claim 1, wherein in the step 5), the T-shaped elastic sealing body is an extruded foam board material.
5. The method for fixing and sealing the splicing seam of the water-encountering roof with the cantilever structure as claimed in claim 1, wherein in the step 4), the left water retaining wall and the right water retaining wall are built on the roof structure beam slab, and the left water retaining wall and the right water retaining wall are anchored in the roof structure beam slab by using the vertical ribs.
6. The method for constructing the seal of the water-meeting roof splicing seam with the cantilever structure as claimed in claim 1, wherein in the step 7), the Jiong-shaped seal wall bodies are constructed on the roof structure beam plates at two sides of the roof splicing seam by adopting the vertical ribs to anchor the roof structure beam plates.
7. The method for fixing and sealing the splicing seam of the water-meeting roof with the cantilever structure as claimed in claim 1, wherein before the construction of step 7), a floor drain hole is drilled in the beam slab of the roof structure at the head and tail ends between the left water retaining wall and the fixing and sealing wall and at the head and tail ends between the right water retaining wall and the fixing and sealing wall, and a floor drain pipe is arranged in the floor drain hole; and the space between the floor drain pipe and the floor drain hole is sealed by the adhesive water stop and the concrete sealing curing agent.
8. A sealing structure for a water roof splicing seam having a cantilever structure formed by the construction method according to any one of claims 1 to 7.
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