CN106245678B - Outer wall of basement single side formwork construction method based on steel pipe truss - Google Patents

Outer wall of basement single side formwork construction method based on steel pipe truss Download PDF

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Publication number
CN106245678B
CN106245678B CN201610629307.7A CN201610629307A CN106245678B CN 106245678 B CN106245678 B CN 106245678B CN 201610629307 A CN201610629307 A CN 201610629307A CN 106245678 B CN106245678 B CN 106245678B
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China
Prior art keywords
steel pipe
template
truss
basement
vertical
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CN201610629307.7A
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CN106245678A (en
Inventor
黄海龙
程华安
刘家全
丁保安
高雄
吉喆
刘晓辉
王院朋
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Shaanxi construction general installation engineering Co.,Ltd.
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Work First Construction Group Co Ltd Is Built In Shaanxi
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/045Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
    • E02D29/05Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84Walls made by casting, pouring, or tamping in situ
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06Forms, 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
    • E04G11/08Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/14Bracing or strutting arrangements for formwalls; Devices for aligning forms
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00Production methods
    • E02D2250/0007Production methods using a mold

Abstract

The outer wall of basement single side formwork construction method based on steel pipe truss that the invention discloses a kind of, comprising steps of one, truss fixed structure and template bottom fixing structure Embedment Construction: pre-buried for fixing the truss fixed structure of steel pipe truss, and the pre-buried template bottom fixing structure for fixed form on leading wall on brace foundation;Two, steel pipe truss is set up: steel pipe truss is set up on brace foundation;Three, wall steel bar cage is bound;Four, formwork hoisting;Five, template is fixedly connected with steel pipe truss;Six, template bottom is fixedly connected with wall is led: being fixedly secured to lead on wall by template bottom by template bottom fixing structure;Seven, steel pipe truss is reinforced;Eight, walls concrete pours.The method of the present invention step is simple, design is reasonable and easy construction, using effect are good, using steel pipe truss as support construction, and carries out dual reinforcing by truss fixed structure and template bottom fixing structure, can effectively improve outer wall of basement single side formwork effect.

Description

Outer wall of basement single side formwork construction method based on steel pipe truss
Technical field
The invention belongs to outer wall of basement technical field of construction, more particularly, to a kind of basement based on steel pipe truss outside Wall single side formwork construction method.
Background technique
With the day of town site being becoming tight and cost of land increases, often there is outer wall of basement and be close to foundation pit The situation of supporting construction no longer stays facility work operating surface.Therefore, it when reinforced concrete basement external wall is constructed, can only take One side formwork and support system construction are carried out in inner side of outer wall.In outer wall of basement single side formwork work progress, wall form mould Type becomes cantilever form structure from traditional continuous beam on many supports plate, and lateral pressure all need to be transferred to lower junction by support system Structure, while generating biggish horizontal distortion.Therefore, the key problem of outer wall of basement single side formwork construction is how to pass through raising The lateral rigidity of support system resists the walls concrete lateral pressure that template generates in casting process, and by Deformation control Within the allowable range.But when nowadays, constructing to outer wall of basement single side formwork, none unified, standard and specification are applied Work method is for following, when practice of construction, be inevitably present constructing operation arbitrarily, institute's branching standing template is because lateral pressure easily occurs The problems such as deformation, outer wall of basement construction quality are difficult to ensure.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of based on steel pipe The outer wall of basement single side formwork construction method of truss, method and step is simple, design is reasonable and easy construction, using effect It is good, using steel pipe truss as support construction, and dual reinforcing is carried out by truss fixed structure and template bottom fixing structure, Outer wall of basement single side formwork effect can be effectively improved.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: outside a kind of basement based on steel pipe truss Wall single side formwork construction method, which is characterized in that method includes the following steps:
Step 1: truss fixed structure and template bottom fixing structure Embedment Construction: pre-buried for solid on brace foundation Determine the truss fixed structure of steel pipe truss, and the pre-buried template bottom fixing structure for fixed form on leading wall;
On the inside of outer wall of basement to be onstructed, the template is arranged vertically the formwork support arrangement;It is described to be onstructedly Lower room exterior wall is supported on brace foundation, and the brace foundation is reinforced concrete structure;The wall of leading is positioned at brace foundation On armored concrete lead wall;The steel pipe truss is erected on the outside of template;
The steel pipe truss includes more vertical steel pipes and the P horizontal steel tube brackets laid from the bottom to top, described in more Vertical steel pipe is fastenedly connected by the P horizontal steel tube brackets and is integrated;The more vertical steel pipes divide M row's N column to carry out cloth If vertical steel pipe described in every row includes the vertical steel that N root is laid from left to right along the width direction of outer wall of basement to be onstructed It manages, vertical steel pipe described in each column includes the vertical steel that M root is laid from front to back along the length direction of outer wall of basement to be onstructed Pipe;Wherein, M, N and P are positive integer, M >=3, N >=3, P >=3;Each horizontal steel tube bracket by M root transverse direction steel pipe and N root longitudinal direction steel pipe is assembled, and the transverse direction steel pipe and longitudinal steel pipe are in horizontal layout and the perpendicular laying of the two, described vertical Length direction to steel pipe along outer wall of basement to be onstructed is laid;Longitudinal direction steel pipe described in N root in vertical steel pipe described in every row is equal It is connect with transverse direction steel pipe described in the P root laid from the bottom to top and to form a lateral steel pipe support, the M in vertical steel pipe described in each column Longitudinal direction steel pipe described in root connect to form a longitudinal steel pipe support with longitudinal direction steel pipe described in the P root laid from the bottom to top;It is described The inner end of all transverse direction steel pipes, which is propped up, in steel pipe truss withstands in template;
It is provided with transversely strengthening structure on each lateral steel pipe support, the transversely strengthening structure includes that multiple tracks is oblique It is in the lateral steel pipe support reinforced to reinforcing web member and the oblique drawstring of multiple tracks, the oblique reinforcing web member and oblique drawstring It is parallel to lay;Oblique reinforcing web member described in multiple tracks is laid on same vertical plane, and oblique reinforcing web member described in per pass is fixed On the lateral steel pipe support reinforced;Oblique drawstring described in multiple tracks is laid on same vertical plane, oblique drawing described in per pass The equal binding and fixing in the upper end of rope are on the lateral steel pipe support top reinforced, the equal binding and fixing in bottom end of oblique drawstring described in per pass On the pre-buried pull ring for being located at added solid lateral steel pipe support inside bottom, the pre-buried pull ring lower part is embedded in brace foundation It is interior;
The truss fixed structure includes that multiple vertical built-in fittings being anchored in brace foundation and M are embedded in support base in advance Pre-buried pull ring in plinth;Multiple vertical built-in fittings divide M row's N column to be laid, each vertical steel pipe bottom in the steel pipe truss Portion is both secured on the vertical built-in fitting;The M lateral steel pipe supports are along the length side of outer wall of basement to be onstructed To being laid from front to back, the installation position of the M pre-buried pull rings laying position with the M lateral steel pipe supports respectively Set one-to-one correspondence;
The template bottom fixing structure includes multiple pre- being embedded in the lateral fastener led on wall, the laterally fastening Part is laid along the width direction of outer wall of basement to be onstructed;Multiple lateral fasteners are along outer wall of basement to be onstructed Length direction is laid from front to back, and the template bottom is provided with multiple mounting holes for the lateral fastener installation, institute It states template bottom and is fixed on described lead on wall by multiple lateral fasteners;
Step 2: steel pipe truss is set up: setting up steel pipe truss described in step 1 on brace foundation, and by set up steel Each vertical steel pipe bottom is both secured on the vertical built-in fitting in tubular truss;
Step 3: wall steel bar cage is bound: using steel pipe truss described in step 2, construction ground is treated on brace foundation The wall steel bar cage of lower room exterior wall is bound;
Step 4: formwork hoisting: molding formwork hoisting will be pre-machined in place using hanging device, the template is located at Between wall steel bar cage described in steel pipe truss described in step 2 and step 3;
Step 5: template is fixedly connected with steel pipe truss: by transverse direction steel pipes all in steel pipe truss described in step 2 It props up and withstands in template in inner end;
Step 6: template bottom is fixedly connected with wall is led: by template bottom fixing structure described in step 1, by template Bottom is fixedly secured to described lead on wall;
Step 7: steel pipe truss is reinforced: the transverse direction steel pipe support point described to each of steel pipe truss described in step 2 It is not reinforced;
When the transverse direction steel pipe support described to any of the steel pipe truss is reinforced, on the transverse direction steel pipe support It is provided with the oblique reinforcing web member of multiple tracks and the oblique drawstring of multiple tracks;
Step 8: walls concrete pours: treating construction outer wall of basement and carry out concreting, complete underground to be onstructed The work progress of room exterior wall.
The above-mentioned outer wall of basement single side formwork construction method based on steel pipe truss, it is characterized in that: being led described in step 1 Wall is poured with brace foundation and is integrated;
To brace foundation and it is described lead wall carry out concreting before, first lay the truss fixed structure and the mould Plate bottom fixing structure;After the completion of the truss fixed structure and the template bottom fixing structure are laid, then to support The basic and described wall of leading carries out concreting respectively.
The above-mentioned outer wall of basement single side formwork construction method based on steel pipe truss, it is characterized in that: N described in step 1 =5~7;It is foundation pit supporting construction on the outside of the outer wall of basement to be onstructed.
The above-mentioned outer wall of basement single side formwork construction method based on steel pipe truss, it is characterized in that: M arranges the vertical steel pipe In uniformly distributed, N arranges the vertical steel pipe in uniformly distributed, and spacing and adjacent two between the adjacent two rows vertical steel pipe arrange Spacing between the vertical steel pipe is 800mm~1000mm;P horizontal steel tube brackets are in uniformly distributed, phase up and down Spacing between adjacent two horizontal steel tube brackets is 300mm~500mm.
The above-mentioned outer wall of basement single side formwork construction method based on steel pipe truss, it is characterized in that: being propped up described in step 1 Support group plinth is raft foundation or basement waterproofing plate, and the vertical built-in fitting is embedded steel tube, and the length of the embedded steel tube is 500mm~800mm, it is 300mm~400mm that the length on the outside of brace foundation is exposed on the embedded steel tube top.
The above-mentioned outer wall of basement single side formwork construction method based on steel pipe truss, it is characterized in that: cross described in step 1 It is water-proof bolt to fastener, the water-proof bolt is fixed on described lead on the steel plate for sealing water of upper lateral part within the walls.
The above-mentioned outer wall of basement single side formwork construction method based on steel pipe truss, it is characterized in that: multiple institutes in step 1 It states lateral fastener to be laid in same level, the spacing between the two neighboring lateral fastener in front and back is 300mm ~500mm;
The transverse direction fastener and the spacing led between wall top portion are 100mm~200mm.
The above-mentioned outer wall of basement single side formwork construction method based on steel pipe truss, it is characterized in that: mould described in step 4 The outside of plate is fixed with the vertical back cord of multiple tracks from front to back, and vertical back cord described in multiple tracks forms the vertical ruggedized construction of template;It is described Be provided with the road P longitudinal direction back cord on the outside of the vertical ruggedized construction of template from the bottom to top, longitudinal direction back cord described in the road P be in horizontal layout and its Laid along the length direction of outer wall of basement to be onstructed;The installation position of longitudinal direction back cord described in the road P respectively with the steel pipe purlin The installation position of the P horizontal steel tube brackets corresponds in frame, and longitudinal direction back cord described in per pass passes through the level Transverse direction steel pipe branch described in M root in steel pipe support is withstood on the outside of the vertical ruggedized construction of the template;
Before carrying out formwork hoisting in step 4, first template is processed, and is fixed from front to back in the outside of template Vertical back cord described in multiple tracks.
The above-mentioned outer wall of basement single side formwork construction method based on steel pipe truss, it is characterized in that: steel described in step 1 The inner end of the every lateral steel pipe is mounted on the U-shaped Kato being installed on longitudinal back cord, Mei Gesuo in tubular truss It states the U-shaped Kato that transverse direction steel pipe inner end described in M root is installed in horizontal steel tube bracket and is installed in the longitudinal direction back cord with along with On;
Binding and fixing are carried out by tied silk between vertical back cord described in longitudinal direction back cord and multiple tracks described in per pass;
When vertical back cord described in multiple tracks is fixed from front to back in the outside of template, also vertical back cord and mould described in per pass The P tied silks are clamped between plate from the bottom to top;
Before progress template is fixedly connected with steel pipe truss in step 5, first by the lateral fasteners multiple in step 1 It is respectively charged into the mounting hole of template bottom;
When progress template is fixedly connected with steel pipe truss in step 5, the P horizontal steel tube brackets are propped up respectively It pushes up and fixed;
Wherein, when any one described horizontal steel tube bracket being carried out support top and fixed, the first M root in the horizontal steel tube bracket Longitudinal back cord together is clamped in the U-shaped Kato of transverse direction steel pipe inner end installation, then by adjusting the connecting rod The longitudinal back cord clamped abutting is fixed on the outside of the vertical ruggedized construction of the template by length, then will be longitudinal by the tied silk Back cord carries out binding and fixing with vertical back cord described in multiple tracks respectively respectively.
The above-mentioned outer wall of basement single side formwork construction method based on steel pipe truss, it is characterized in that: mould described in step 4 Plate is plank sheathing, and the vertical back cord is the wooden a tree, used in making timber for boats being fixed on the outside of template by fastening nail, and the longitudinal direction back cord is a water Flat steel pipe or the assembled back cord of the horizontal steel tube laid from the bottom to top by more;
Spacing between vertical back cord described in adjacent twice is not more than 100mm;
It is carried out in step 5 during template is fixedly connected with steel pipe truss, also needs to synchronize to the verticality of template and smooth Degree is corrected.
Compared with the prior art, the present invention has the following advantages:
1, method and step is simple, realizes that convenient and investment construction cost is lower.
2, design mainly includes that truss fixed structure is taken with template bottom fixing structure Embedment Construction, steel pipe truss rationally If, the binding of wall steel bar cage, formwork hoisting, template be fixedly connected with steel pipe truss, template bottom with lead wall be fixedly connected, steel pipe Truss reinforcement and walls concrete pour this eight steps, wherein truss fixed structure and template bottom fixing structure Embedment Construction When, Embedment Construction is mainly carried out respectively to embedded steel tube, reinforcing bar pull ring and water-proof bolt, easy construction, formwork hoisting is in place Need to carry out being fixed temporarily for template afterwards, the verticality of calibration template and smooth simultaneously during template is fixedly connected with steel pipe truss Degree.
3, the reasonable in design and easy construction of used truss fixed structure and template bottom fixing structure, use Effect is good, wherein truss fixed structure includes the vertical built-in fitting being anchored in brace foundation and is embedded in brace foundation in advance Pre-buried pull ring, template bottom fixing structure include the pre- lateral fastener for being embedded in and leading on wall, when practice of construction, need to only be completed vertical Built-in fitting, pre-buried pull ring and lateral fastener it is pre-buried.Also, the cloth of truss fixed structure and template bottom fixing structure If Position Design is reasonable, being fastenedly connected the steel pipe truss for being used to support template and brace foundation by truss fixed structure is one Body, the lateral pressure for bearing template are transferred directly to brace foundation by steel pipe truss, can effectively improve the steady of steel pipe truss Solidity and lateral support ability;Template bottom fixing structure can fasten template bottom and the wall of leading for the outer wall of basement that is used to construct It is connected as one, further increases support and the fixed effect of template, template can be further prevented to be subjected to displacement or generate laterally Deformation, so as to be effectively ensured construction molding outer wall of basement construction quality.
4, used outer wall of basement single side formwork architecture Design rationally, good integrity, stabilized structure and use Effect is good, mainly includes steel pipe truss, truss fixed structure, template bottom fixing structure and carries out to each lateral steel pipe support The oblique reinforcing web member and oblique drawstring reinforced, oblique reinforcing web member and oblique drawstring reinforce lateral steel pipe support Bracket ruggedized construction.The outer wall of basement single side formwork system can carry out firm support to outer wall of basement single side formwork, and The length and height of outer wall of basement single side formwork system are unrestricted, are able to satisfy the outer wall of basement of different length and different height Single side formwork construction demand, it is widely applicable.
The outer wall of basement single side formwork system passes through setting embedded steel tube, oblique on the basis of conventional steel truss Reinforce web member, oblique drawstring, four kinds of measures such as lead water-proof bolt pre-buried on wall, to reinforce steel pipe truss frame body it is lateral just Degree, so that steel pipe truss has not only been effective against the lateral pressure of concreting process template, but also makes template amount of deflection control System is within the allowable range.Wherein, embedded steel tube is fixed as the support of upright bar (i.e. vertical steel pipe) shearing resistance in steel pipe truss frame body Point;It is acted on by the drawknot of oblique drawstring, the support system based on steel pipe truss is changed into freely supported structure by cantilever design, and It can be effectively controlled support system end displacement;Also, the lateral pressure for being born steel pipe truss frame body using oblique reinforcing web member It is decomposed, and is transferred on foundation structure (i.e. brace foundation) by oblique reinforcing web member.In addition, template bottom passes through sealing Bolt is reliably connected with pouring the base concrete finished in advance and lead wall, prevent form surfacing under lateral pressure effect on Floating or formation faulting of slab ends, is further ensured that the construction quality of construction molding outer wall of basement.
5, using effect is good, compared with traditional bilateral formwork support method, single side formwork construction of the present invention Method has the following characteristics that first, does not need constructing operation face on the outside of structure, reduces the excavation and filling amount of pit earthwork, is dropping Also responsive to the call of green construction " saving land " while low engineering cost;The second, using steel pipe truss as support construction into When row single side formwork, formwork reinforcement is not needed using traditional Screw arbor with nut at both-ends, in the engineering consumptive material (i.e. sealing up screw) of saving Meanwhile the self waterproofing effect of outer wall of basement concrete can be effectively improved;Third, by the way that anchorage is arranged in conventional steel truss Short steel pipes (i.e. embedded steel tube), oblique reinforcing web member, oblique drawstring lead the measures such as water-proof bolt pre-buried on wall reinforcement steel pipe purlin The lateral rigidity of frame has not only been reasonably resistant to lateral pressure when walls concrete pours, but also has reached concrete structure Clear-water concrete effect;4th, construction method and the two-sided wooden model board construction method of tradition are substantially similar, professional not strong, operation Technical requirements are not high, and work progress is easily controllable.
6, widely applicable, practical value is high and popularization and application foreground is extensive, is suitable for shear wall structure and utilizes steel pipe truss Support carries out the project of unilateral wooden model construction, and the present invention has saved engineering cost, simultaneously under the premise of guaranteeing safety, quality It improves work efficiency, achieves good economic benefit and social benefit.Compared with traditional bilateral formwork support method, this Invention can save the usage amount of sealing up screw, and reduce excavation of foundation pit area and reduce earthwork excavation and filling amount.Can be had using the present invention Effect reduces foundation pit occupied area, saves the area, while can effectively reduce fugitive dust caused by due to backfilling of earthwork, is more advantageous to environment Protection.Meanwhile the waterproof effect of building basement exterior wall is significantly improved, and increases the durability of building waterproof layer. Present invention is generally directed to outer wall of basement structures to be close to foundation pit supporting construction, when outside is without operating space, by steel pipe truss Interior setting embedded steel tube, oblique reinforcing web member, oblique drawstring and base concrete lead these four measures of the pre-embedded bolt on wall, use To reinforce the lateral rigidity of truss body and template, so that truss has not only been effective against the lateral of concreting process template Pressure, and make the control of template amount of deflection within the allowable range.The qualification rate of construction molding outer wall of basement reaches 90% or more, mixes Solidifying soil perception effect reaches clear-water concrete effect.
In conclusion the method for the present invention step is simple, design is reasonable and easy construction, using effect are good, using steel pipe purlin Frame carries out dual reinforcing as support construction, and by truss fixed structure and template bottom fixing structure, can effectively improve ground Lower room exterior wall single side formwork effect.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is method flow block diagram of the invention.
Fig. 2 is the planar structure schematic diagram of outer wall of basement single side formwork system of the present invention.
Fig. 3 is the schematic view of facade structure of outer wall of basement single side formwork system of the present invention.
Description of symbols:
1-outer wall of basement to be onstructed;2-templates;3-vertical steel pipes;
4-lateral steel pipes;5-longitudinal steel pipes;6-oblique reinforcing web members;
7-oblique drawstrings;8-pre-buried pull rings;9-brace foundations;
10-embedded steel tubes;11-water-proof bolts;12-coil waterproof layers;
13-vertical back cords;14-longitudinal back cords;15-U-shaped Katos;
16-foundation pit supporting constructions;17-concrete cushions;18-blinding layers.
Specific embodiment
A kind of outer wall of basement single side formwork construction method based on steel pipe truss as shown in Figure 1, comprising the following steps:
Step 1: truss fixed structure and template bottom fixing structure Embedment Construction: pre-buried for solid on brace foundation 9 Determine the truss fixed structure of steel pipe truss, and the pre-buried template bottom fixing structure for fixed form 2 on leading wall, is detailed in figure 2 and Fig. 3;
As shown in Figures 2 and 3, the template 2 stands on 1 inside of outer wall of basement to be onstructed, the template 2 in vertically to It lays;The outer wall of basement to be onstructed 1 is supported on brace foundation 9, and the brace foundation 9 is reinforced concrete structure;Institute Stating and leading wall is that the armored concrete on brace foundation 9 leads wall;The steel pipe truss is erected on 2 outside of template;
The steel pipe truss includes more vertical steel pipes 3 and the P horizontal steel tube brackets laid from the bottom to top, described in more Vertical steel pipe 3 is fastenedly connected by the P horizontal steel tube brackets and is integrated;The more vertical steel pipes 3 divide M row's N column to carry out It lays, vertical steel pipe 3 described in every row includes that N root is erected along what the width direction of outer wall of basement 1 to be onstructed was laid from left to right To steel pipe 3, vertical steel pipe 3 described in each column includes what M root was laid from front to back along the length direction of outer wall of basement 1 to be onstructed Vertical steel pipe 3;Wherein, M, N and P are positive integer, M >=3, N >=3, P >=3;Each horizontal steel tube bracket is horizontal by M root Assembled to steel pipe 4 and N root longitudinal direction steel pipe 5, the transverse direction steel pipe 4 and longitudinal steel pipe 5 are in hang down in horizontal layout and the two Straight to lay, the longitudinal direction steel pipe 5 is laid along the length direction of outer wall of basement 1 to be onstructed;N in vertical steel pipe 3 described in every row Longitudinal direction steel pipe 5 described in root connect formation one lateral steel pipe support with transverse direction steel pipe 4 described in the P root laid from the bottom to top, often It arranges longitudinal direction steel pipe 5 described in the M root in the vertical steel pipe 3 and connect formation with longitudinal direction steel pipe 5 described in the P root laid from the bottom to top One longitudinal steel pipe support;The inner end of all transverse direction steel pipes 4, which is propped up, in the steel pipe truss withstands in template 2;
It is provided with transversely strengthening structure on each lateral steel pipe support, the transversely strengthening structure includes that multiple tracks is oblique To reinforcing web member 6 and the oblique drawstring 7 of multiple tracks, it is described it is oblique reinforce web member 6 and oblique drawstring 7 with the lateral steel pipe branch reinforced Frame is laid in parallel;Oblique reinforcing web member 6 described in multiple tracks is laid on same vertical plane, oblique reinforcing web member 6 described in per pass It is each attached on the lateral steel pipe support reinforced;Oblique drawstring 7 described in multiple tracks is laid on same vertical plane, described in per pass For the equal binding and fixing in upper end of oblique drawstring 7 on the lateral steel pipe support top reinforced, the bottom end of oblique drawstring 7 described in per pass is equal On the pre-buried pull ring 8 for being located at added solid lateral steel pipe support inside bottom, pre-buried 8 lower part of pull ring is embedded in binding and fixing In brace foundation 9;
The truss fixed structure includes that multiple vertical built-in fittings being anchored in brace foundation 9 and M are embedded in support in advance Pre-buried pull ring 8 in basis 9;Multiple vertical built-in fittings divide M row's N column to be laid, each vertical steel in the steel pipe truss 3 bottom of pipe is both secured on the vertical built-in fitting;The M lateral steel pipe supports are along outer wall of basement 1 to be onstructed Length direction is laid from front to back, the installation position of the M pre-buried pull ring 8 respectively with the M lateral steel pipe supports Installation position correspond;
The template bottom fixing structure includes multiple pre- being embedded in the lateral fastener led on wall, the laterally fastening Part is laid along the width direction of outer wall of basement 1 to be onstructed;Multiple lateral fasteners are along outer wall of basement 1 to be onstructed Length direction laid from front to back, 2 bottom of template is provided with multiple mounting holes for the lateral fastener installation, Described lead on wall is fixed on by multiple lateral fasteners in 2 bottom of template;
Step 2: steel pipe truss is set up: setting up steel pipe truss described in step 1 on brace foundation 9, and will be set up Each 3 bottom of vertical steel pipe is both secured on the vertical built-in fitting in steel pipe truss;
Step 3: wall steel bar cage is bound: using steel pipe truss described in step 2, to be onstructed on brace foundation 9 The wall steel bar cage of outer wall of basement 1 is bound;
Step 4: formwork hoisting: the molding lifting of template 2 will be pre-machined in place using hanging device, the template 2 Between wall steel bar cage described in the steel pipe truss described in step 2 and step 3;
Step 5: template is fixedly connected with steel pipe truss: by transverse direction steel pipes 4 all in steel pipe truss described in step 2 Inner end, which is propped up, to be withstood in template 2;
Step 6: template bottom is fixedly connected with wall is led: by template bottom fixing structure described in step 1, by template 2 bottoms are fixedly secured to described lead on wall;
Step 7: steel pipe truss is reinforced: the transverse direction steel pipe support point described to each of steel pipe truss described in step 2 It is not reinforced;
When the transverse direction steel pipe support described to any of the steel pipe truss is reinforced, on the transverse direction steel pipe support It is provided with the oblique reinforcing web member 6 of multiple tracks and the oblique drawstring 7 of multiple tracks;
Step 8: walls concrete pours: treating construction outer wall of basement 1 and carry out concreting, complete to be onstructedly The work progress of lower room exterior wall 1.
Wherein, length of the transverse direction steel pipe 4 described in the M root in each horizontal steel tube bracket along outer wall of basement 1 to be onstructed Degree direction be laid in same level from front to back, N root longitudinal direction steel pipe 5 along outer wall of basement 1 to be onstructed width direction by Left-to-right is laid in same level.
In the present embodiment, the length of the longitudinal direction steel pipe support is not less than the length of outer wall of basement 1 to be onstructed, described vertical It is not less than the height of outer wall of basement 1 to be onstructed to the height of steel pipe support.
Wherein, the brace foundation 9 is reinforced concrete foundation, and it is also referred to as basic waterproof that described lead, which leads wall based on wall, Lead wall.It is the concrete walls being laid on brace foundation 9 that wall is led on the basis.In the present embodiment, it is described lead wall and meanwhile be for It constructs the concrete guide wall of the outer wall of basement to be onstructed 1, the inside bottom led wall and be located at outer wall of basement 1 to be onstructed And the two is poured and is integrated.
In the present embodiment, the oblique reinforcing web member 6 is steel pipe, and the oblique drawstring 7 is wirerope.
Also, described in multiple tracks it is oblique reinforce web member 6 include multiple tracks be in the first diagonal web member for laying in parallel with together with by multiple tracks The second diagonal web member that first diagonal web member is connected as one, first diagonal web member is from top to bottom gradually to far to be onstructedly The side of lower room exterior wall 1 tilts, and second diagonal web member is from top to bottom gradually to the inclination close to outer wall of basement 1 to be onstructed Tiltedly.
In the present embodiment, oblique drawstring 7 described in twice, the oblique drawing are provided on each lateral steel pipe support Rope 7 is from top to bottom gradually tilted to the side close to outer wall of basement 1 to be onstructed.
Thus, the quantity of oblique drawstring 7 is twice, the upper end of oblique drawstring 7 described in twice in the transversely strengthening structure Binding and fixing are in the outer upper and inside upper part for reinforcing transverse direction steel pipe support, the bottom end of oblique drawstring 7 described in twice respectively Equal binding and fixing are on the same pre-buried pull ring 8.
When practice of construction, the steel pipe truss, the truss fixed structure, the template bottom fixing structure and to each The oblique reinforcing web member 6 and oblique drawstring 7 that lateral steel pipe support is reinforced form outer wall of basement single side formwork system, are detailed in Fig. 2 and Fig. 3.
In the present embodiment, to be dismounted easily, quickly and support is firm, the vertical steel pipe 3 and lateral steel pipe 4, Zong Xianggang It is fastenedly connected by steel tube fastener between pipe 5 and embedded steel tube 10.
Wall is led in the present embodiment, described in step 1 pour with brace foundation 9 be integrated;
To brace foundation 9 and it is described lead before wall carries out concreting, first lay the truss fixed structure and described Template bottom fixing structure;After the completion of the truss fixed structure and the template bottom fixing structure are laid, then to branch Support group plinth 9 and the wall of leading carry out concreting respectively.
It is foundation pit supporting construction 16 on the outside of outer wall of basement 1 to be onstructed described in step 1 in the present embodiment.
In the present embodiment, 1 outside of outer wall of basement to be onstructed and 9 bottom of brace foundation are provided with coil waterproof layer 12, concrete cushion 17,17 cloth of concrete cushion are provided between the foundation pit supporting construction 16 and coil waterproof layer 12 It is located on the inner sidewall of foundation pit supporting construction 16;Meanwhile tiling has one layer of blinding layer 18 below the brace foundation 9, it is described Coil waterproof layer 12 is between brace foundation 9 and blinding layer 18.
In the present embodiment, N=5~7 described in step 1.
When practice of construction, according to specific needs, the value size of N is adjusted accordingly.
M arranges the vertical steel pipe 3 in uniformly distributed, and N arranges the vertical steel pipe 3 in uniformly distributed, and adjacent two rows are described to erect It is 800mm~1000mm to the spacing between the spacing between steel pipe 3 and the adjacent two column vertical steel pipe 3;The P water For flat steel pipe support in uniformly distributed, the spacing between neighbouring two horizontal steel tube brackets is 300mm~500mm.This In embodiment, the spacing between the spacing between the adjacent two rows vertical steel pipe 3 and the adjacent two column vertical steel pipe 3 is 900mm, the spacing between neighbouring two horizontal steel tube brackets are 400mm.
Brace foundation 9 described in step 1 is raft foundation or basement waterproofing plate, and the vertical built-in fitting is pre-buried steel Pipe 10, the length of the embedded steel tube 10 are 500mm~800mm, and 9 outside of brace foundation is exposed on 10 top of embedded steel tube Length is 300mm~400mm.In the present embodiment, the length of the embedded steel tube 10 is 600mm, 10 top of embedded steel tube The length for exposing 9 outside of brace foundation is 350mm.Earth anchor measure using embedded steel tube 10 as the steel pipe truss.It is adjacent Spacing between spacing between two rows of embedded steel tubes 10 and the adjacent two column embedded steel tube 10 is 900mm.
In the present embodiment, pre-buried pull ring 8 described in step 1 is the reinforcing bar pull ring as made of the bar bending of Φ 16mm.
The pre-buried pull ring 8 is laid in the junction between brace foundation 9 and outer wall of basement to be onstructed 1.
In the present embodiment, the quantity of the pre-buried pull ring 8 is M, and the M lateral steel pipe supports are along basement to be onstructed The length direction of exterior wall 1 is laid from front to back, the installation position of the M pre-buried pull ring 8 respectively with the M lateral steel The installation position of pipe holder corresponds.The M pre-buried pull rings 8 are laid on the same line from front to back, front and back adjacent two Spacing between a pre-buried pull ring 8 is 900mm.
When practice of construction, according to specific needs, to the spacing between the adjacent two rows vertical steel pipe 3, adjacent two column The spacing between spacing, neighbouring two horizontal steel tube brackets, the length of embedded steel tube 10 between the vertical steel pipe 3 Degree and laying spacing and the laying spacing of pre-buried pull ring 8 adjust accordingly respectively.
Multiple lateral fasteners are laid in same level in step 1, and the two neighboring transverse direction in front and back is tight Spacing between firmware is 300mm~500mm.
The transverse direction fastener and the spacing led between wall top portion are 100mm~200mm.
In the present embodiment, transverse direction fastener described in step 1 is water-proof bolt 11, and the water-proof bolt 11 is fixed on institute It states on the inside of the steel plate for sealing water for leading wall top.
Also, the spacing between the two neighboring lateral fastener in front and back is 400mm.It, can be according to tool when practice of construction Body needs, and the spacing between the lateral fastener two neighboring to front and back adjusts accordingly.
In the present embodiment, the water-proof bolt 11 is Φ 14mm bolt.The steel plate for sealing water away from it is described lead wall it is suitable for reading away from From for 150mm.
Before carrying out concreting to brace foundation 9, first lays pre-buried pull ring 8 and embedded steel tube 10 carries out cloth respectively And if pre-buried pull ring 8 and embedded steel tube 10 are both secured on the framework of steel reinforcement in brace foundation 9;The wall of leading is mixed Before solidifying soil pours, first lays water-proof bolt 11 and water-proof bolt 11 is fixed on to the steel plate for sealing water led described in pre- be embedded within the walls On.To avoid the position due to leading to built-in fitting (including pre-buried pull ring 8, embedded steel tube 10 and water-proof bolt 11) when concreting Set offset, to brace foundation 9 and it is described lead wall carry out concreting when, special messenger need to be set, built-in fitting is safeguarded.
In the present embodiment, when progress steel pipe truss is set up in step 2, each 3 bottom of vertical steel pipe in set up steel pipe truss It is overlapped with embedded steel tube 10, no less than three cruciform fastening for falsework should be set at lap joint.
When carrying out the binding of wall steel bar cage in the present embodiment, in step 3, bar bender utilizes the steel for having set up completion Tubular truss carries out the reinforcing bar connection and binding of wall steel bar cage as operation scaffold.
In the present embodiment, the outside of template 2 described in step 4 is fixed with the vertical back cord 13 of multiple tracks, multiple tracks institute from front to back It states vertical back cord 13 and forms the vertical ruggedized construction of template;It is vertical that it is provided with the road P from the bottom to top on the outside of the vertical ruggedized construction of template To back cord 14, longitudinal direction back cord 14 described in the road P in horizontal layout and its along the length direction cloth of outer wall of basement 1 to be onstructed If;The laying position with the horizontal steel tube bracket of P in the steel pipe truss respectively of the installation position of longitudinal direction back cord 14 described in the road P One-to-one correspondence is set, longitudinal direction back cord 14 described in per pass is by transverse direction steel pipe 4 described in the M root in a horizontal steel tube bracket It withstands on the outside of the vertical ruggedized construction of the template;
Before carrying out formwork hoisting in step 4, first template 2 is processed, and solid from front to back in the outside of template 2 Determine vertical back cord 13 described in multiple tracks.
In the present embodiment, template 2 described in step 4 is plank sheathing, and the vertical back cord 13 is to be fixed on by fastening nail The wooden a tree, used in making timber for boats in 2 outside of template, the longitudinal direction back cord 14 are a horizontal steel tube or are spelled by the more horizontal steel tubes laid from the bottom to top Back cord made of dress.
Spacing between vertical back cord 13 described in adjacent twice is not more than 100mm.
In the present embodiment, the cross sectional dimensions of the vertical back cord 13 is 50mm × 70mm.
In the present embodiment, the longitudinal direction back cord 14 is the back cord assembled by two horizontal steel tubes.The longitudinal direction back cord The diameter of horizontal steel tube described in 14 is Φ 48mm and its wall thickness is 3mm, between longitudinal direction back cord 14 described in neighbouring twice Spacing is 400mm.
In the present embodiment, the inner end of the every lateral steel pipe 4 is mounted on one in steel pipe truss described in step 1 The U-shaped Kato 15 being installed on longitudinal back cord 14, the peace of 4 inner end of transverse direction steel pipe described in M root in each horizontal steel tube bracket The U-shaped Kato 15 of dress is installed in along on the longitudinal direction back cord 14.
In the present embodiment, tied up by tied silk between vertical back cord 13 described in longitudinal direction back cord 14 and multiple tracks described in per pass It pricks and fixes;
It, need to also be in vertical back cord described in per pass when vertical back cord 13 described in multiple tracks is fixed from front to back in the outside of template 2 The P tied silks are clamped between 13 and template 2 from the bottom to top.
In the present embodiment, before progress template is fixedly connected with steel pipe truss in step 5, first by institutes multiple in step 1 Lateral fastener is stated to be respectively charged into the mounting hole of 2 bottom of template;
When progress template is fixedly connected with steel pipe truss in step 5, the P horizontal steel tube brackets are propped up respectively It pushes up and fixed;
Wherein, when any one described horizontal steel tube bracket being carried out support top and fixed, the first M root in the horizontal steel tube bracket Longitudinal back cord 14 together is clamped in the U-shaped Kato 15 of transverse direction 4 inner end of steel pipe installation, then by adjusting the connection The longitudinal back cord 14 clamped abutting is fixed on the outside of the vertical ruggedized construction of the template by the length of bar, then passes through the tied silk Longitudinal back cord 14 is subjected to binding and fixing with vertical back cord 13 described in multiple tracks respectively respectively.
The tied silk is to carry out subsequent fixed binding silk to longitudinal back cord 14, the length of the tied silk be 400mm~ 450mm。
In the present embodiment, the height of the template 2 is 300mm higher than the height of the outer wall of basement 1 to be onstructed, so as to mould What plate 2 and construction finished described lead wall and is overlapped.
Meanwhile also sponge adhesive tape need to be pasted on the bottom edge of template 2, while opening up at away from template bottom edge 150mm for sealing spiral shell The hole that bolt 11 is installed.
It, will be described after the molding lifting in place of template 2 will be pre-machined using hanging device in step 4 in the present embodiment It leads water-proof bolt 11 pre-buried on wall to penetrate in the reserved hole in 2 bottom of template, and using the steel pipe truss and has bound The wall steel bar cage template 2 is fixed temporarily.
In the present embodiment, during progress template is fixedly connected with steel pipe truss in step 5, also need to synchronize to template 2 Verticality and flatness are corrected.
When practice of construction, after the lifting of template 2 in place and after being fixed temporarily, enters step five carry out templates and steel pipe truss is solid Fixed connection.
In the present embodiment, the U-shaped Kato 15 is the adjustable Kato in Support Position, and is arranged on U-shaped Kato 15 There is adjusting nut.The U-shaped Kato 15 includes U-shaped bracket, and the adjusting nut is provided in the bracket and is carried out The vertical clamping part moved left and right, the vertical clamping part are installed on longitudinal 14 outside of back cord.
When being attached to the steel pipe truss and template 2, first the inside of the vertical ruggedized construction of the template by down toward Upper laying multiple tracks longitudinal direction back cord 14, and each longitudinal back cord 14 is put into the M U-shaped Katos being laid in same level In 15 bracket, the adjusting nut for being adjusted in synchronism each U-shaped Kato 15 is adjacent to longitudinal back cord 14 with vertical back cord 13;To After the completion of all longitudinal direction back cords 14 are fixed, according to the wall side control line of the outer wall of basement to be onstructed 1 of preparatory measuring, block-by-block by Section ground is corrected the verticality and flatness of template 2, and is fastened by water-proof bolt 11 to template 2;Finally, will erect It (is clipped between vertical back cord 13 and template 2 in advance to back cord 13, longitudinal back cord 14 and U-shaped Kato 15 using the tied silk Iron wire) it is bundled and is fastened.
Wherein, after being fastened by water-proof bolt 11 to template 2, template 2 and the wall bolt of leading are integrated.It treats Outer wall of basement 1 of constructing carries out in concreting process, and the concrete impact force that 2 bottom of template is subject to is much larger than other portions Position;In addition, 2 bottom of template is passed through water-proof bolt 11 to prevent template 2 from the faulting of slab ends that floats or formed occur under lateral pressure effect With pour in advance finish described in lead wall and be reliably connected, Specific construction process is: template 2 is carried out in hoisting process, It leads water-proof bolt 11 pre-buried on wall by described and penetrates in the reserving hole of 2 bottom of template, then in the outer end cap of water-proof bolt 11 Mountain type card is filled, and longitudinal back cord 14 is set in the mountain type card, upper cap nut is finally covered and is fastened.
Thus, positioned at longitudinal back cord 14 described together of bottommost and the template bottom in longitudinal direction back cord 14 described in multiple tracks Fixed structure, which is fastenedly connected, to be integrated, and the steel pipe truss, template 2 and the template bottom fixing structure are further improved Single side formwork effect on the outside of basement can be effectively ensured in globality.
Rigidity due to fully relying on truss body in the outer wall of basement single side formwork system is poured to resist concrete Lateral pressure when building, therefore, the rigidity of truss are to determine the principal element of the quality and safety of single side formwork construction, the steel The reinforcing of tubular truss is most important.In the present embodiment, the transverse direction steel pipe described to any of the steel pipe truss in step 7 When bracket is reinforced, the oblique reinforcing web member 6 of multiple tracks is set on the transverse direction steel pipe support and the oblique drawstring 7 of multiple tracks is added Gu.Wherein, the oblique effect for reinforcing web member 6 is that the internal force for receiving the steel pipe truss decomposes, and makes the steel pipe The frame body stress of truss tends to rationalize;The effect of the oblique drawstring 7 be on the one hand prevent the steel pipe truss frame body due to Lateral displacement occurs for earth anchor deficiency;It on the other hand is to prevent in concreting process, template 2 is gone out by concrete side to pressure The phenomenon that now floating.
When practice of construction, the oblique vertical steel pipe 3 reinforced in web member 6 and the steel pipe truss, lateral steel pipe 4 and vertical It is attached between steel pipe 5 by steel tube fastener, oblique reinforcing web member 6 and the steel pipe truss is made to form an entirety Force structure.Oblique drawstring 7 is carried out in cinching process, euphroe or flower basket bolt to be used to tense, and by template 2 and is supported System does the arch camber that height is h/250, wherein h is the concreting height of outer wall of basement 1 to be onstructed.
In step 8 carry out walls concrete casting process in, using placement layer by layer method, every layer pour height be 500mm forbids primary concreting excessively high, avoids quick-fried mould or leakage.When current institute's pouring layer is high larger, using delaying to pour The mode for building the time reduces the lateral pressure of template 2, and practical speed of perfusion should be not more than the speed of perfusion chosen when lateral pressure. When concrete vibrating, vibrating spear cannot directly touch the plate face of template 2, and insertion lower layer is deep-controlled in 50mm~100mm, no It is preferably too deep, moderate finite deformation is generated to prevent the frame body of wall form 2 and the steel pipe truss.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way, it is all according to the present invention Technical spirit any simple modification to the above embodiments, change and equivalent structural changes, still fall within skill of the present invention In the protection scope of art scheme.

Claims (8)

1. a kind of outer wall of basement single side formwork construction method based on steel pipe truss, which is characterized in that this method includes following Step:
Step 1: truss fixed structure and template bottom fixing structure Embedment Construction: pre-buried for fixing on brace foundation (9) The truss fixed structure of steel pipe truss, and the pre-buried template bottom fixing structure for fixed form (2) on leading wall;
Template (2) branch is stood on the inside of outer wall of basement to be onstructed (1), and the template (2) is arranged vertically;It is described wait apply Work outer wall of basement (1) is supported on brace foundation (9), and the brace foundation (9) is reinforced concrete structure;The wall of leading is Armored concrete on brace foundation (9) leads wall;The steel pipe truss is erected on the outside of template (2);
The steel pipe truss includes more vertical steel pipes (3) and the P horizontal steel tube brackets laid from the bottom to top, and more described perpendicular It is fastenedly connected and is integrated by the P horizontal steel tube brackets to steel pipe (3);The more vertical steel pipes (3) divide M row N arrange into Row is laid, and vertical steel pipe (3) described in every row includes N root along the width direction cloth from left to right of outer wall of basement to be onstructed (1) If vertical steel pipe (3), vertical steel pipe (3) described in each column include M root along outer wall of basement to be onstructed (1) length direction by The vertical steel pipe (3) laid front to back;Wherein, M, N and P are positive integer, M >=3, N >=3, P >=3;Each horizontal steel tube Bracket is assembled by M root transverse direction steel pipe (4) and N root longitudinal direction steel pipe (5), and the transverse direction steel pipe (4) and longitudinal steel pipe (5) are equal In horizontal layout and the perpendicular laying of the two, length direction cloth of the longitudinal direction steel pipe (5) along outer wall of basement to be onstructed (1) If;Vertical steel pipe (3) described in N root in vertical steel pipe described in every row (3) with transverse direction steel pipe described in the P root laid from the bottom to top (4) connection forms a lateral steel pipe support, and vertical steel pipe (3) described in the M root in vertical steel pipe (3) described in each column is and under The connection of longitudinal direction steel pipe (5) described in the P root of supreme laying forms a longitudinal steel pipe support;All transverse direction steel in the steel pipe truss The inner end of pipe (4), which is propped up, to be withstood on template (2);Pass through steel tube fastener between the vertical steel pipe (3) and the vertical built-in fitting It is fastenedly connected;
Transversely strengthening structure is provided on each lateral steel pipe support, the transversely strengthening structure, which includes that multiple tracks is oblique, to be added Gu web member (6) and the oblique drawstring of multiple tracks (7), it is described it is oblique reinforce web member (6) and oblique drawstring (7) with the lateral steel reinforced Pipe holder is laid in parallel;Oblique reinforcing web member (6) described in multiple tracks is laid on same vertical plane, oblique reinforcing described in per pass Web member (6) is each attached on the lateral steel pipe support reinforced;Oblique drawstring (7) described in multiple tracks is laid in same vertical plane On, the equal binding and fixing in upper end of oblique drawstring (7) described in per pass are oblique described in per pass on the lateral steel pipe support top reinforced The equal binding and fixing in bottom end of drawstring (7) are described pre- on the pre-buried pull ring (8) for being located at added solid lateral steel pipe support inside bottom Pull ring (8) lower part is buried to be embedded in brace foundation (9);Oblique reinforcing web member (6) described in multiple tracks includes that multiple tracks is in lay in parallel The second diagonal web member that first diagonal web member described in multiple tracks is connected as one by the first diagonal web member with together with, first diagonal web member is by upper It is gradually tilted to the side far from outer wall of basement to be onstructed (1) under, second diagonal web member is from top to bottom gradually to close The side of outer wall of basement (1) to be onstructed tilts;
The truss fixed structure includes that multiple vertical built-in fittings being anchored in brace foundation (9) and M are embedded in support base in advance Pre-buried pull ring (8) in plinth (9);Multiple vertical built-in fittings divide M row's N column to be laid, each vertical in the steel pipe truss Steel pipe (3) bottom is both secured on the vertical built-in fitting;The M lateral steel pipe supports are along outer wall of basement to be onstructed (1) length direction is laid from front to back, the installation position of the M pre-buried pull ring (8) respectively with the M lateral steel The installation position of pipe holder corresponds;
The template bottom fixing structure includes multiple pre- being embedded in the lateral fastener led on wall, the transverse direction fastener edge The width direction of outer wall of basement (1) to be onstructed is laid;Multiple lateral fasteners are along outer wall of basement to be onstructed (1) Length direction laid from front to back, template (2) bottom is provided with multiple installations for the lateral fastener installation Described lead on wall is fixed on by multiple lateral fasteners in hole, template (2) bottom;The transverse direction fastener is installed on Template (2) bottom;
The steel pipe truss, the truss fixed structure, the template bottom fixing structure and to each lateral steel pipe support into The oblique reinforcing web member (6) and oblique drawstring (7) that row is reinforced form outer wall of basement single side formwork system;
Step 2: steel pipe truss is set up: setting up steel pipe truss described in step 1 on brace foundation (9), and by set up steel Each vertical steel pipe (3) bottom is both secured on the vertical built-in fitting in tubular truss;
Step 3: wall steel bar cage is bound: using steel pipe truss described in step 2, treating construction ground on brace foundation (9) The wall steel bar cage of lower room exterior wall (1) is bound;
Step 4: formwork hoisting: molding template (2) lifting will be pre-machined in place using hanging device, template (2) position Between wall steel bar cage described in the steel pipe truss described in step 2 and step 3;
Step 5: template is fixedly connected with steel pipe truss: by the interior of transverse direction steel pipes (4) all in steel pipe truss described in step 2 End branch is withstood on template (2);
Step 6: template bottom is fixedly connected with wall is led: by template bottom fixing structure described in step 1, by template (2) Bottom is fixedly secured to described lead on wall;
Step 7: steel pipe truss reinforce: it is described to each of steel pipe truss described in step 2 transverse direction steel pipe support respectively into Row is reinforced;
When the transverse direction steel pipe support described to any of the steel pipe truss is reinforced, it is arranged on the transverse direction steel pipe support There are the oblique reinforcing web member (6) of multiple tracks and the oblique drawstring of multiple tracks (7);
Step 8: walls concrete pours: treating construction outer wall of basement (1) and carry out concreting, complete underground to be onstructed The work progress of room exterior wall (1).
2. the outer wall of basement single side formwork construction method described in accordance with the claim 1 based on steel pipe truss, it is characterised in that: Wall is led described in step 1 pour with brace foundation (9) be integrated;
To brace foundation (9) and it is described lead wall carry out concreting before, first lay the truss fixed structure and the mould Plate bottom fixing structure;After the completion of the truss fixed structure and the template bottom fixing structure are laid, then to support Basic (9) and the wall of leading carry out concreting respectively.
3. the outer wall of basement single side formwork construction method according to claim 1 or 2 based on steel pipe truss, feature exist In: N=5~7 described in step 1;It is on the outside of the outer wall of basement to be onstructed (1) foundation pit supporting construction (16).
4. the outer wall of basement single side formwork construction method according to claim 1 or 2 based on steel pipe truss, feature exist The vertical steel pipe (3) is arranged in uniformly distributed in: M, and N arranges the vertical steel pipe (3) in uniformly distributed, and adjacent two rows are described vertically Spacing between spacing between steel pipe (3) and the adjacent two column vertical steel pipe (3) is 800mm~1000mm;P described For horizontal steel tube bracket in uniformly distributed, the spacing between neighbouring two horizontal steel tube brackets is 300mm~500mm.
5. the outer wall of basement single side formwork construction method according to claim 1 or 2 based on steel pipe truss, feature exist In: brace foundation described in step 1 (9) is raft foundation or basement waterproofing plate, and the vertical built-in fitting is embedded steel tube (10), the length of the embedded steel tube (10) is 500mm~800mm, and brace foundation (9) are exposed on embedded steel tube (10) top The length in outside is 300mm~400mm.
6. the outer wall of basement single side formwork construction method according to claim 1 or 2 based on steel pipe truss, feature exist It is water-proof bolt (11) in: transverse direction fastener described in step 1, the water-proof bolt (11), which is fixed on, described leads wall top On the inside of steel plate for sealing water.
7. the outer wall of basement single side formwork construction method according to claim 1 or 2 based on steel pipe truss, feature exist In: multiple lateral fasteners are laid in same level in step 1, the two neighboring lateral fastener in front and back Between spacing be 300mm~500mm;
The transverse direction fastener and the spacing led between wall top portion are 100mm~200mm.
8. the outer wall of basement single side formwork construction method according to claim 1 or 2 based on steel pipe truss, feature exist In: the outside of template described in step 4 (2) is fixed with the vertical back cord of multiple tracks (13), vertical back cord described in multiple tracks from front to back (13) the vertical ruggedized construction of template is formed;It is provided with the road P longitudinal direction back cord from the bottom to top on the outside of the vertical ruggedized construction of template (14), longitudinal direction back cord (14) described in the road P in horizontal layout and its along the length direction cloth of outer wall of basement to be onstructed (1) If;The laying with P in the steel pipe truss horizontal steel tube brackets respectively of the installation position of longitudinal direction back cord (14) described in the road P Position corresponds, and longitudinal direction back cord (14) described in per pass passes through transverse direction steel described in the M root in a horizontal steel tube bracket Pipe (4) branch is withstood on the outside of the vertical ruggedized construction of the template;
Before carrying out formwork hoisting in step 4, first template (2) is processed, and solid from front to back in the outside of template (2) Determine vertical back cord (13) described in multiple tracks.
CN201610629307.7A 2016-08-03 2016-08-03 Outer wall of basement single side formwork construction method based on steel pipe truss Active CN106245678B (en)

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CN109736353B (en) * 2018-12-28 2020-10-09 杭州江润科技有限公司 Construction method of composite single-side formwork deep foundation pit basement outer wall
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CN102220806B (en) * 2011-03-30 2012-12-26 中联世纪建设集团有限公司 Construction method for supporting and reinforcing ultrahigh hanging single-sided vertical formwork
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