CN113123215B - Construction method of platform wall and platform wall - Google Patents
Construction method of platform wall and platform wall Download PDFInfo
- Publication number
- CN113123215B CN113123215B CN202110307564.XA CN202110307564A CN113123215B CN 113123215 B CN113123215 B CN 113123215B CN 202110307564 A CN202110307564 A CN 202110307564A CN 113123215 B CN113123215 B CN 113123215B
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- wall
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- platform
- cornice
- upper wall
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/08—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
- E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
Abstract
The invention relates to a construction method of a platform wall and the platform wall, and specifically comprises the following steps for the construction method of the platform wall: s1: dividing a platform wall concrete structure into three sections, wherein the first section is divided into a bottom plate (1); the second section is divided into haunches (2); the third section is divided into an upper wall body (3); s2: firstly, constructing a bottom plate (1); s3: constructing the haunching part (2); s4: and finally, constructing the upper wall body (3). The platform wall manufactured by the construction method comprises a bottom plate (1); armpit positions (2) on the bottom plate (1); an upper wall body (3) arranged on the haunched part (2). The construction method can improve the precision of the installation template, and the size error of the platform wall manufactured by the method is smaller.
Description
Technical Field
The invention relates to a construction method of a platform wall and also relates to the platform wall manufactured by the method.
Background
Traditional platform surface course is spread and is pasted back platform wall eave and can expose the mortar adhesive linkage, and the mode that generally all adopts the side to hang the net and plaster is corniced the side eave and is plastered the processing to the platform wall, can decorate like this temporarily and beautify, and along with the erosion of time variation and rainwater, traditional processing method can produce a large amount of plasters and drop and the phenomenon of discolouing, both influences pleasing to the eye effect, also causes the risk to driving safety.
The utility model discloses a china utility model patent specification CN210049652U discloses cast-in-place prestressing force clear water concrete elevated station ripple pane outer wall structure and elevated station, specifically is a structural design method that relates to an elevated station adopts whole cast-in-place prestressing force clear water concrete to carry out ripple pane molding and decoration. The outer wall structure is formed outside the elevated station by adopting cast-in-place fair-faced concrete, so that the decoration requirement is met; the outer wall structure is distributed in a horizontal corrugated shape for modeling, so that the landscape requirement is met; the outer wall structure is provided with the oval hole-opening panes with gradually changed sequences, so that the decoration effect and the transparent lighting requirement are met. It is not reasonably segmented, resulting in low installation accuracy of the template.
Disclosure of Invention
The invention aims to provide a construction method of a platform wall for improving the mounting precision of a template.
Another object of the present invention is to provide a platform wall manufactured by the above construction method, which has a smaller dimensional error.
Aiming at the construction method of the platform wall for improving the template installation precision, the invention specifically comprises the following steps:
s1: dividing a platform wall concrete structure into three sections, wherein the first section is divided into a bottom plate; the second section is divided into axilla; the third section is divided into an upper wall body;
s2: firstly, constructing a bottom plate;
s3: then carrying out construction at the haunch;
s4: and finally, performing upper wall construction.
The whole concrete structure is divided into three-section construction, so that the template installation accuracy can be effectively controlled by the segmented construction, and the haunch can be stably installed on the upper portion of the bottom plate.
As a further improvement of the construction method of the platform wall, in step S4, when the upper wall body is supported, the PVC pipe transversely penetrating is pre-buried, and after pouring, the water drainage hole is formed. When the drainage holes are used for pouring, water can be introduced for cooling, the hydration heat of concrete is reduced, cracks are reduced, and water can be drained when the drainage holes are used.
As a further improvement of the construction method of the platform wall, in the step S2, a bottom plate steel reinforcement framework is firstly bound, then a steel mould is supported, an expansion joint is arranged on the pre-embedded asphalt wood wool board, a stop block is welded at the intersection of the asphalt wood wool board and the steel mould, and two stop blocks are arranged at one end of the asphalt wood wool board and are respectively positioned at two sides of the end part of the asphalt wood wool board. The asphalt wood wool board is too small in exposed size, so that the whole attractive effect is improved, the two check blocks can clamp the asphalt wood wool board, the position and the width of the expansion joint are located, and the exposed size of the expansion joint can be increased.
As a further improvement of the construction method of the platform wall, one side of the stop block, which is far away from the expansion joint, is provided with putty and a fillet, so that the expansion joint at the exposed part of the platform wall is as wide and smooth, and the integrity of the external corner at the exposed part can be prevented from being damaged when the platform wall is demolded.
As a further improvement of the construction method of the platform wall, the upper wall body is constructed after the bottom plate and the haunched part are integrally demolished, and the demolished partial template is used for supporting the upper wall body. The platform wall template uses the steel mould with the material, uses the steel mould to have following advantage: the turnover frequency is multiple, the concrete finishing surface is good in flatness and glossiness, the structure size is uniform and attractive, the mounting and dismounting are simple, and the whole road standardization implementation is facilitated; and the templates are reasonably turned over, and the spreading and the marketing are reduced.
As a further improvement of the construction method of the platform wall, in the step S3, a steel reinforcement framework at the haunches is bound, a formwork is erected, pouring is carried out at the haunches, and when the haunches are poured, guide walls are integrally poured at the haunches. Wall body template positionable mounting adds the wall of leading that armpit department reserved, and the installation accuracy can be more accurate.
As a further improvement of the construction method of the platform wall, in step S4, a steel bar framework of the upper wall body is bound, a formwork is supported, and two sides of the guide wall are tightly attached to the formwork. Fundamentally has stopped the way of platform wall cornice side plastering, has stopped the side plastering fracture, has come off, has ensured driving safety.
As a further improvement of the construction method of the platform wall, when a formwork is erected, the split bolts penetrate through the formworks on two sides of the guide wall to tightly press the formworks on two sides of the guide wall, the split bolt assemblies are arranged on the upper side of the cornice formwork and the upper side of the upper wall formwork opposite to the cornice formwork, and the upper ends of the formworks are tensioned. Prevent that the template upper end is not hard up, be favorable to safe pouring, be favorable to reducing the potential safety hazard.
As a further improvement of the construction method of the platform wall, after the concrete structure of the platform wall is completed, the cap stones are paved on the cornice and the upper wall body, a mortar layer is paved, then the cap stones are paved on the mortar layer, the end surfaces of the cap stones on the end part of the cornice are flush with the end surfaces of the stop strips and the cornice end surface, and the mortar layer is shielded by the stop strips. The barrier strip prevents mortar from leaking from the end of the cornice, not only affecting the beauty, but also being easy to crack and fall off, and affecting the driving safety.
The platform wall manufactured by the method comprises a bottom plate; haunches on the bottom plate; an upper wall body arranged on the haunch. The dimensional error is smaller.
The upper end of the upper wall body transversely extends to form a cornice, and a barrier strip is arranged on the upper end of the cornice. The barrier strip can prevent the mortar from being easily exposed from the end part of the cornice when the mortar is fully paved on the cornice.
As a further improvement of the platform wall, the upper wall body is provided with a PVC pipe which is transversely penetrated and arranged as a water drainage hole. The drainage is convenient.
As a further improvement of the platform wall, a guide wall is arranged between the haunch and the upper wall body. When the guide wall is used for installing the template, the accuracy of template installation can be improved.
As a further improvement of the platform wall, an expansion joint is arranged along the length direction of the bottom plate. The expansion joint avoids the bottom plate to crack.
As a further improvement of the table wall, hat stones are paved on the cornice and the upper wall body. The hat stone is a stone material, generally adopts 2 kinds of Tianshan safflower granite and maple leaf safflower granite, and has hard texture, luster and good wear resistance.
As a further improvement of the platform wall, a mortar layer is arranged between the cap stone and the cornice, one end of the mortar layer is connected with the barrier strip, and the end surface of the cap stone on the end part of the cornice is flush with the end surface of the barrier strip and the end surface of the cornice.
The mortar is surrounded by the barrier strips, the cornices and the hat stones, and is not easy to expose from the end parts of the cornices.
The invention is beneficial to improving the precision of installing the template, and prevents one side surface of the platform wall close to the traffic lane from cracking and falling off to influence the traffic safety.
Drawings
Fig. 1 is a schematic view of a platform wall structure.
Fig. 2 is an enlarged schematic view of the cornice position.
Fig. 3 is a schematic view of the upper wall structure.
Fig. 4 is an enlarged view of the position of the stopper.
FIG. 5 is a partially enlarged schematic view of the position of the expansion joint
FIG. 6 is a schematic view of a first and second segment casting configuration.
Fig. 7 is a schematic view of a third segment of a casting structure.
Fig. 8 is a schematic structural view of embodiment 3.
Reference numerals: 1. a base plate; 2. axilla area; 3. an upper wall body; 4. a guide wall; 5. cornice; 6. oppositely pulling the bolts; 7. a stopper; 8. blocking strips; 9. a cap stone; 10. a mortar layer; 11. an elastic cushion strip; 12. waterproof coiled materials; 13. rubber spiral ribs.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, 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 obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
Example 1
As shown in fig. 1-7, firstly binding a steel reinforcement framework of a bottom plate 1, then erecting a formwork to pour the bottom plate 1, wherein the width of the bottom plate 1 is 1700mm, the height of the bottom plate is 350mm, when pouring is carried out along the length direction of the bottom plate 1, an expansion joint is preset, the width of the expansion joint is 20mm, a pre-embedded asphalt wood-wool board is adopted, a stop dog 7 is welded at the intersection of the asphalt wood-wool board and the steel mold, the two stop dogs 7 at one end of the asphalt wood-wool board are distributed on two sides of the end part of the asphalt wood-wool board close to the steel mold, and putty and a fillet are puttered on one side of the stop dog 7 far away from the expansion joint. The stopper 7 is 20mm wide.
The asphalt wood wool board exposes the size undersize, for promoting whole pleasing to the eye effect, two dog 7 both can the centre gripping asphalt wood wool board, and the position and the width at location expansion joint can increase the size that exposes at expansion joint again.
After the bottom plate 1 is solidified and formed and has certain strength, the reinforcing steel bar framework at the haunching position is bound and the formwork is supported after a person sets a formwork, the haunching position 2 is poured, and when the haunching position 2 is poured, a section of guide wall 3 is integrally poured on the haunching position 2. The wall body template can be positioned and installed on the guide wall reserved in the haunching position, and the installation precision can be more accurate.
After the bottom plate 1 and the haunching position 2 reach the strength of the corresponding detachable template, the template of the bottom plate 1 and the haunching position 2 is detached, and the steel die is used, so that the turnover is facilitated, the consumption of the template is reduced, and the turnover template can be used for pouring the upper wall body 4.
The steel reinforcement framework for binding the upper wall body 4, a formwork and the two sides of the guide wall 3 can be tightly attached to the formwork, when the formwork is supported, the cornice 5 formwork of the upper wall body 4 is installed at the same time, when pouring is carried out, the cornice 5 and the upper wall body 4 are poured into a whole, when pouring the cornice 5, the concrete barrier strips 8 are integrally poured on the top of the cornice 5, and the height of the barrier strips 8 is 3 centimeters. The split bolts 6 penetrate through the templates on the two sides of the guide wall 3 to tightly press the templates on the two sides of the guide wall 3, and split bolt assemblies are also arranged on the upper side of the cornice template and the upper side of the upper wall template opposite to the cornice template and used for tensioning the upper ends of the templates. When the cornice 5 is poured, the formwork of the cornice 5 is 5 cm higher than the cornice. The stop strip 8 fundamentally prevents the side plastering of the cornice 5 of the platform wall from cracking and falling off, and ensures the driving safety. Split bolt subassembly prevents that the template upper end is not hard up, is favorable to safe pouring, is favorable to reducing the potential safety hazard. 8 integral pouring of blend stop, the wholeness is good, difficult fracture, safer.
After the platform wall concrete structure is finished, the cap stone 9 is paved on the cornice 5 and the upper wall body, the cap stone is a stone material, 2 types of Tianshan safflower granite and maple leaf safflower granite are generally adopted, a layer of mortar needs to be paved on the surface of the cornice and the upper wall body, the cap stone 9 is paved on the mortar layer 10, the end face of the cap stone 9 on the end part of the cornice 5 is flush with the end face of the barrier strip 8 and the end face of the cornice 5, and the mortar layer 10 is shielded by the barrier strip 8.
The barrier strip 8 prevents mortar from leaking from the side surface of the cornice 5, and the mortar is easy to crack and fall off when leaking, thereby easily influencing the driving safety.
Example 2
As shown in fig. 1, the gu' an east station has four eight lines, 2 and 3 stations have a width of 12.5m, and two sides are concrete station walls; 1. 4 platform width 9.5m, one side is the concrete platform wall, and the other side is the perpendicular barricade that the unit had accomplished before the station. The platform wall of Gu' an Dong is divided into two types, the constructed on site is 2, 3 platform wall bodies close to the main line side, the total height of the platform wall structure is 3m, and the platform wall structure is respectively composed of a bottom plate, an armpit, a wall body and a cornice. Detailed description of the drawings fig. 1
The platform wall is one of the most important structures of the whole platform, the completion quality and the effect of the platform wall play an important role in the effect of the whole platform, so the whole process is carefully planned before construction:
the platform wall formwork uses the steel mould with the material, uses the steel mould to have following advantage: the turnover frequency is multiple, the concrete finished surface is good in smoothness and glossiness, uniform and attractive in structural size, simple to mount and dismount and beneficial to promoting the standardized implementation of the whole road;
considering that mortar joints can be exposed when the capping stones are paved and pasted on the platform in the later period, concrete barrier strips are arranged at the ends of the structural cornices and are poured together with the wall body during pouring, so that the rear side faces of the platform cornices after the later period decoration are unified to be the original color of the concrete, the attractiveness of the platform wall is greatly improved, the phenomena of alkali reflection and falling caused by later period side face plastering treatment are avoided, the thickness of the capping stones of the platform is reserved in advance, and only small joints are subjected to detail treatment after paving and pasting are finished.
The details are shown in figure 2:
when the water escape holes are reserved, the problem of reserved deviation is likely to occur, all the water escape holes are constructed in a rear hole opening mode for solving the problem, a horizontal line is popped up at a design height after the concrete strength is stable, and hole opening positions are uniformly drawn according to intervals.
And (3) measuring and paying-off work plan, wherein the horizontal limit of the platform is 1750mm, the limit is controlled to 1780mm by comprehensive consideration, the through control line is put on the platform wall in the full-length paying-off process by adopting a total station, the through line is controlled by re-laying the wall body on the bottom plate after the bottom plate is poured, and elevation control is strictly executed according to the pile-crossing control point.
The expansion joint is originally designed with a 20mm asphalt wood wool board, the exposed size is too small, the exposed width of the expansion joint position is adjusted to be 60mm in order to improve the overall beautiful effect, and the concrete implementation method is considered in advance in the template processing. Detail nodes are shown in fig. 4 and 5:
as shown in fig. 6 and 7, the whole concrete structure is divided into three sections of construction, the first section is bottom plate construction, the second section is haunch construction, and the third section is upper wall construction, so that the sectional construction can effectively control the installation accuracy of the template, the haunch can be stably installed on the upper portion of the bottom plate, the wall template can be positioned and installed on the 200mm guide wall reserved in the haunch, and the installation accuracy can be more accurate.
The upper wall template fixing and supporting bolt holes use bolt hole positions reserved in advance on the lower guide wall, the steel mould of the upper wall falls on the split bolts on the guide wall, and the steel mould of the upper wall is supported by using structural bolt holes poured on the guide wall.
Example 3
An elastic filler strip 11 is arranged between the concrete barrier strip 8 and the mortar layer 10, such as a rubber strip, the elastic filler strip 11 is wrapped by a waterproof coiled material 12, and the elastic filler strip 11 is provided with a vertical hole or a cavity along the axial direction thereof
The elastic filler strip 11 prevents the concrete shelves strip and the mortar layer junction from being affected by the expend with heat and contract with cold, extrude each other and form the crack, elastic filler strip 11 can play the effect of temperature seam, elastic filler strip 11 uses waterproofing membrane 12 parcel, can prevent rainwater from soaking elastic filler strip, make it age and lose elasticity, the hole or the cavity of elastic filler strip 11 self, can make it have bigger deformability, can also practice thrift more materials, do rubber spiral rib 13 in the cavity, rubber spiral rib 13 and elastic filler strip can integrated into one piece, rubber spiral rib 13 level is laid in hole or cavity, make elastic filler strip 11 have stronger recovery deformability, make between elastic filler strip 11 and the concrete shelves strip 8, it is inseparabler between elastic filler strip 11 and the mortar layer 10, make elastic filler strip 11 be difficult for the slippage, have longer live time.
The platform wall cornice breaks through the traditional method, adopts the integrative steel form of regularization to prop up and establishes, when the structure is pour with wall body an organic whole, we set up the concrete at the structure cornice end and return the platform and shelter from the mortar layer and expose, return the platform promptly blend stop, fundamentally has stopped the method that platform wall cornice side was plastered, has stopped the side and has plastered the fracture, has come off, has ensured driving safety, has also promoted the whole effect of platform decoration fitment simultaneously.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. It will be apparent to those skilled in the art that various equivalent substitutions and obvious modifications can be made without departing from the spirit of the invention, and all changes that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (7)
1. A construction method of a platform wall is characterized by comprising the following steps:
s1: dividing a platform wall concrete structure into three sections, wherein the first section is divided into a bottom plate (1); the second section is divided into haunches (2); the third section is divided into an upper wall body (3);
s2: firstly, constructing a bottom plate (1);
s3: then constructing the haunch (2);
s4: finally, constructing the upper wall body (3);
in the step S3, binding a steel reinforcement framework at the haunching position, erecting a formwork, pouring the haunching position (2), and integrally pouring a guide wall (4) on the haunching position (2) when the haunching position (2) is poured;
in the step S4, binding a steel reinforcement framework of the upper wall body (3), supporting a formwork, and tightly attaching two sides of the guide wall (4) to the formwork, simultaneously installing a cornice (5) formwork of the upper wall body (3) during formwork supporting, casting the cornice (5) and the upper wall body (3) into a whole, and casting a concrete barrier strip (8) on the end part of the cornice (5) during casting the cornice (5);
wherein, after platform wall concrete structure was accomplished, shop dress cap stone (9) on cornice (5) and upper portion wall body (3), full one deck mortar layer (10) of spreading earlier, again with cap stone (9) the pavement on mortar layer (10), cap stone (9) on cornice (5) tip, its terminal surface flushes with blend stop (8) terminal surface and cornice (5) terminal surface, shelters from mortar layer (10) with blend stop (8).
2. A method of constructing a platform wall according to claim 1, wherein in step S4, when the upper wall body (3) is erected, PVC pipes which are transversely penetrated are pre-buried, and after casting, drain holes are formed.
3. The construction method of a platform wall according to claim 1, wherein in step S2, the steel framework of the bottom plate (1) is bound first, then the steel mould is supported, the asphalt wood wool board is embedded to form the expansion joint, the stop blocks (7) are welded at the intersection of the asphalt wood wool board and the steel mould, and two stop blocks (7) are arranged at one end of the asphalt wood wool board and are respectively positioned at two sides of the end part of the asphalt wood wool board.
4. A method of constructing a platform wall according to claim 3, wherein the stop (7) is caulked and filleted on the side remote from the expansion joint.
5. A method of constructing a platform wall according to claim 1, wherein the upper wall (3) is constructed after the base plate (1) and the haunch (2) are integrally demolded, and the demolded partial formwork is used for supporting the upper wall (3).
6. A method of constructing a platform wall according to claim 1, wherein, in erecting the formwork, the tie bolts (6) are passed through the formwork on both sides of the guide wall (4) to press the formwork on both sides of the guide wall (4), the tie bolt assembly is provided on the upper side of the cornice formwork and the upper side of the upper wall formwork opposite thereto, and the upper ends of the formworks are tightened.
7. A platform wall manufactured by the construction method according to claim 1, comprising a floor (1); armpit positions (2) on the bottom plate (1); an upper wall body (3) arranged on the haunch (2).
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| CH591599A5 (en) * | 1974-06-24 | 1977-09-30 | Weber Karl Betonwerk Hoch Und | |
| CN108277777A (en) * | 2017-12-08 | 2018-07-13 | 中交烟台环保疏浚有限公司 | Wave wall substep pouring construction process |
| CN109868923B (en) * | 2019-03-11 | 2021-01-05 | 深圳市建工集团股份有限公司 | Construction method of bare concrete of loose-spliced wood formwork |
| CN110714621A (en) * | 2019-10-31 | 2020-01-21 | 北京市市政四建设工程有限责任公司 | Millimeter-scale accurate positioning system and method in prefabricated stand column hoisting process |
| CN212534203U (en) * | 2020-05-22 | 2021-02-12 | 北京崇建工程有限公司 | Retaining wall structure |
| CN111910668A (en) * | 2020-07-24 | 2020-11-10 | 中国二十冶集团有限公司 | Construction method of reinforced raft post-cast strip grout blocking strip |
| CN112359873A (en) * | 2020-11-17 | 2021-02-12 | 中建八局轨道交通建设有限公司 | Construction method of guide wall with haunch structure |
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