CN208136903U - A kind of precast prestressed formula diaphram wall - Google Patents

A kind of precast prestressed formula diaphram wall Download PDF

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Publication number
CN208136903U
CN208136903U CN201820665038.4U CN201820665038U CN208136903U CN 208136903 U CN208136903 U CN 208136903U CN 201820665038 U CN201820665038 U CN 201820665038U CN 208136903 U CN208136903 U CN 208136903U
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precast prestressed
diaphram
component
evagination
prestressed formula
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CN201820665038.4U
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Chinese (zh)
Inventor
宋帅奇
黄博文
潘巧红
郭金敏
潘乾通
石智纲
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Henan University of Urban Construction
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Henan University of Urban Construction
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Abstract

The utility model relates to a kind of precast prestressed formula diaphram walls, diaphram wall includes a left side, right precast prestressed formula diaphram wall component, the transverse steel right end of left precast prestressed formula diaphram wall component is the first evagination connecting pin of evagination, the transverse steel left end of right precast prestressed formula diaphram wall component is the second evagination connecting pin of evagination, the straight lengths of rebar of first evagination connecting pin is on the outside of the bending reinforcing steel bar section of the second evagination connecting pin, left precast prestressed formula diaphram wall component, it is filled with and first evagination connecting pin between the sides adjacent of right precast prestressed formula diaphram wall component, second evagination connecting pin and a left side, the sides adjacent of right precast prestressed formula diaphram wall component is consolidated into integrally-built cast-in-place concrete body.The utility model solves the problems, such as to be not easy to connect between two adjacent diaphram wall components in the prior art, while improving the intensity at street corner and impermeability.

Description

A kind of precast prestressed formula diaphram wall
Technical field
The utility model relates to the precast prestressed formula diaphram walls in a kind of building engineering field.
Background technique
Based on cast in situs, conventional on-site pours the main construction procedure of diaphram wall and is diaphram wall:First adopt Box cut section is carried out with the grooving equipment of profession, steel reinforcement cage is made after grooving, then lifts by crane and transfer steel reinforcement cage, underwater casting is mixed Solidifying soil is cut carrying out pile crown.It constructs and completes by this step 1 width ground-connecting-wall, every width ground-connecting-wall moves in circles above step.It passes The ground-connecting-wall structure of system when facing large-scale construction project, have already appeared construction risk is big, consumptive material mostly with the disadvantages such as construction cost height Disease.
Precast prestressed formula diaphram wall very good solution cast in situs diaphragm wall there are the drawbacks of, it is existing prefabricated Pre-stress type diaphram wall " a kind of Prefabricated pre-tensioned prestressed underground continuous wall " as disclosed in Chinese patent CN205804324U, The diaphram wall is assembled by several Prefabricated pre-tensioned prestressed underground continuous wall component scenes group, Prefabricated pre-tensioned prestressed ground Down continuous wall member include wall and be located at the intracorporal several pretensioned bars of wall, Prefabricated pre-tensioned prestressed underground continuous wall structure Part short transverse of continuous member under Prefabricated pre-tensioned prestressed ground is divided into, pulling force large area and be located at pulling force large area Two pulling force of two sides are smaller or pressurized zone, pretensioned bar are arranged along the short transverse overall length of diaphram wall component, That is pretensioned bar is vertically arranged, and the both ends of pretensioned bar are arranged in respectively in corresponding service sleeve, pre-buried set The length of pipe and pulling force where service sleeve is smaller or pressurized zone is along Prefabricated pre-tensioned prestressed underground continuous wall component The length of short transverse is identical, only carries out prestressed stretch-draw in the part for being located at pulling force large area on pretensioned bar.
Existing this diaphram wall, pretensioned bar overall length arrangement but non-overall length tensioning in ground-connecting-wall component, only Pulling force large area apply prestressing force, advantageous as enclosed structure ground-connecting-wall support basement floor complex environment Play more favorable prestressing force effect under operating condition, the ground-connecting-wall component on-site assembly that Prefabricated pre-tensioned prestressing force ground-connecting-wall uses, Cost of labor is also greatlyd save while saving material.But it there is problems:Though the non-overall length tensioning of pretensioned bar, But overall length is needed to be arranged, cause certain pretensioned bar to waste, in addition, pretensioned bar generates vertical to wall Pulling force, and in actual use, the load action direction that wall is subject to is horizontally oriented more, the pre- tensioning steel of vertical lines arrangement Muscle cannot more effectively resist the load action of horizontal direction, and the whole tensile strength of wall is not strong, and wall breaks the ductility before ring It is bad;In addition, the adjacent side of two diaphram wall components is plane, it is not easy to connect between two diaphram wall components It is connected to together, the joint bonding strength between two diaphram wall components is inadequate, and impervious closure is bad.
Utility model content
The purpose of this utility model is to provide a kind of precast prestressed formula diaphram wall, to solve in the prior art two The problem of connecting is not easy between a adjacent diaphram wall component.
In order to solve the above technical problems, in the utility model precast prestressed formula diaphram wall technical solution:
A kind of precast prestressed formula diaphram wall, the precast prestressed formula including at least two or so sequence arrangements Continuous wall member down, each precast prestressed formula diaphram wall component include the wall that thickness extends along the longitudinal direction, wall It is consolidated into the integrally-built concrete soil body including steel reinforcement cage and with steel reinforcement cage, steel reinforcement cage includes the transverse steel of arranged crosswise And vertical reinforcement, define the precast prestressed formula underground that position keeps left in two neighboring precast prestressed formula diaphram wall component Continuous wall member is left precast prestressed formula diaphram wall component, the precast prestressed formula diaphram wall component that position is kept right Transverse steel right end for right precast prestressed formula diaphram wall component, left precast prestressed formula diaphram wall component is outer First evagination connecting pin of the convex concrete soil body in left precast prestressed formula diaphram wall component, right precast prestressed formula The transverse steel left end of diaphram wall component is the precast concrete for externally protruding out in right precast prestressed formula diaphram wall component Second evagination connecting pin of body, the first evagination connecting pin are staggeredly arranged in the horizontal direction with the second evagination connecting pin, left prefabricated pre- Stress-type diaphram wall component, right precast prestressed formula diaphram wall component sides adjacent between be filled with and first evagination The sides adjacent of connecting pin, the second evagination connecting pin and left and right precast prestressed formula diaphram wall component is consolidated into overall structure Cast-in-place concrete body.
Left precast prestressed formula diaphram wall component, right precast prestressed formula diaphram wall component adjacent side on With the opposite coupling recess portion of recess, coupling recess portion is vertically extended, and cast-in-place concrete body fills up the coupling recess portion.
The two sides of the thickness direction of the concrete soil body are provided with the transverse steel, and the first evagination connecting pin is along a left side Two the second evaginations of the straight lengths of rebar that right direction extends, right precast prestressed formula diaphram wall component thickness direction two sides connect End is connect as towards the bending reinforcing steel bar section of opposite bending, bending reinforcing steel bar section is located at the inside of straight lengths of rebar, the end of straight lengths of rebar and The bending starting point of bending reinforcing steel bar section is connected.
Two the second evagination connecting pins of right precast prestressed formula diaphram wall component thickness direction two sides are in splayed Arrangement.
Integrally-built reinforced frame, the second evagination connecting pin and the fixed company of reinforced frame are additionally provided in cast-in-place concrete body It connects.
The hollow via-hole for running through the concrete soil body along the vertical direction is provided in the concrete soil body.
It is provided at least two spaced apart deformed bars in left-right direction in wall, up and down the two of deformed bar End is fixed by upper end deformed bar anchor structure and lower end deformed bar anchor structure respectively, and each deformed bar is Along the curved arcuate structure in thickness of wall body direction.
The upper installing hole and confession for upper end deformed bar anchor structure installation are provided on the same side of wall The lower end deformed bar anchor structure peace holds mounting hole, and upper installing hole is from the bottom to top gradually towards far from arcuate structure The inclined hole that extends of arc top-direction inclination, lower mounting hole is from top to bottom gradually to incline towards far from the arc top-direction of arcuate structure The inclined hole tiltedly extended.
The beneficial effects of the utility model are:In the utility model, left and right precast prestressed formula diaphram wall component is equal Be prefabricated in the factory completion, when field fabrication, only need to carry out the company of pouring between left and right precast prestressed formula diaphram wall component Connect, when transferring right precast prestressed formula diaphram wall component, due to the first evagination connecting pin in the up-down direction with second outside Convex connecting pin is staggeredly arranged, therefore the first evagination connecting pin will not interfere with the second evagination connecting pin, two precast prestressed formulas What continuous wall member can be placed down is relatively close, avoids cast-in-place concrete body wide and the impacted problem of intensity, left precast prestressed First evagination connecting pin of formula diaphram wall component is connected with the second evagination of right precast prestressed formula diaphram wall component End is used to form the framework of steel reinforcement of cast-in-place concrete body, to guarantee the integral strength of cast-in-place concrete body, to ensure that two Bonding strength between a diaphram wall component.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of precast prestressed formula diaphram wall in the utility model;
Fig. 2 is the structural schematic diagram of precast prestressed formula diaphram wall component in Fig. 1;
Fig. 3 is A-A in Fig. 2 to sectional view;
Fig. 4 is the B-B direction sectional view in Fig. 2;
Fig. 5 is the arrangement schematic diagram of the position C-C deformed bar in Fig. 2;
Fig. 6 is enlarged drawing at the D of Fig. 5.
Specific embodiment
Described in a kind of implementation such as Fig. 1 ~ 6 of precast prestressed formula diaphram wall:Including at least two or so sequence cloth The precast prestressed formula diaphram wall component 23 set defines position in two neighboring precast prestressed formula diaphram wall component The precast prestressed formula diaphram wall component to keep left is left precast prestressed formula diaphram wall component, and position is kept right prefabricated Pre-stress type diaphram wall component is right precast prestressed formula diaphram wall component.Precast prestressed formula diaphram wall structure Part includes the horizontally extending wall of thickness of wall body, and wall includes steel reinforcement cage and is consolidated into integrally-built fibre with steel reinforcement cage Tie up concrete 1, steel reinforcement cage include positioned at thickness of wall body two sides two rows of overall lengths vertical reinforcement 3 and with corresponding Vertical bar connection Transverse steel 4, the left end of transverse steel 4 is formed by bending splayed structure 6 towards opposite, and the right end of transverse steel is straight steel Muscle section 7, splayed structure 6 and straight lengths of rebar 7 are exposed structure, and exposed structure and corresponding concrete can be formed together combination Portion 8, the straight lengths of rebar 7 of left precast prestressed formula diaphram wall component constitute the first evagination connecting pin, right precast prestressed formula The splayed structure of diaphram wall component constitutes the second evagination connecting pin, the first evagination connecting pin, the second evagination connecting pin Height is consistent.Multiple hollow via-holes 2 spaced apart in left-right direction are provided in wall, each hollow via-hole 2 is vertically square To through wall.Multiple bellowss 5 spaced apart in left-right direction are provided in wall, each bellows 5 is respectively positioned on corresponding two Between a hollow via-hole, deformed bar 5 is equipped in each bellows, because bellows is to be bent along thickness of wall body direction Arcuate structure, therefore corresponding deformed bar is also along the curved arcuate structure in thickness of wall body direction.In the same of wall Upper installing hole 20 and lower mounting hole 21, the upper end interval setting of upper installing hole 20 and wall, lower mounting hole are provided on side 21 are arranged with the lower end interval of wall, and upper installing hole is gradually to tilt from the bottom to top towards the arc top-direction far from arcuate structure The inclined hole of extension, lower mounting hole are the inclined hole from top to bottom gradually extended towards the arc top-direction inclination far from arcuate structure, this Sample can guarantee that mounting hole is consistent with the trend of bellows, be conducive to wearing for deformed bar, while also having and utilizing prestressing force The good tensile stress of reinforcing bar.The aperture of upper installing hole from top to bottom gradually becomes smaller, and the aperture of lower mounting hole gradually becomes from the bottom to top Small, the upper and lower ends of deformed bar pass through upper end deformed bar anchor structure and lower end deformed bar anchor structure respectively Fixed, upper end deformed bar anchor structure includes the upper anchor slab 14 being set in upper installing hole, the anchoring of lower end deformed bar Structure includes the lower anchor slab being set in lower mounting hole, and upper anchor slab 14, lower anchor slab are in tilted layout, the both ends point of deformed bar It is not connected with the anchoring clamping plate 16 for cooperating with corresponding anchor slab block, is provided on the inside of upper and lower anchor slab with elastic force Spiral bar 12, the upper end of deformed bar form stretching end, and the lower end of deformed bar forms anchored end, upper installing hole, lower peace Filling hole is bellmouth, is anchored deformed bar with the wedging of corresponding anchor slab and spiral bar cooperation using bellmouth.Upper peace The slope of the upside hole wall in dress hole is greater than the slope of the downside hole wall of upper installing hole;The slope of the upside hole wall of lower mounting hole is greater than The slope of the downside hole wall of lower mounting hole more convenient can carry out anchoring operation to deformed bar in this way.It is set on wall It is equipped with the injected hole 10 communicated with the bellows, is provided with vent 11 on upper anchor slab.Left precast prestressed formula underground connects Continuous wall member, right precast prestressed formula diaphram wall component sides adjacent between filled with outside the first evagination connecting pin, second The sides adjacent of convex connecting pin and left and right precast prestressed formula diaphram wall component is consolidated into integrally-built cast-in-place concrete Body.
It is opposite along the vertical direction that the sides adjacent of two neighboring precast prestressed formula diaphram wall component is provided with recess The coupling recess portion 22 of extension, coupling recess portion position arc-shaped depression portion, coupling recess portion vertically extend, and cast-in-place concrete body fills up company Connect recess portion 22.Individually precast prestressed formula diaphram wall component is in the prefabrication process of factory:By transverse steel and vertically Reinforcement fabrication steel reinforcement cage presets bellows, reserves hollow circular through-hole, carries out fiber concrete and pours, fiber concrete pours After pouring integral structure with bellows, upper and lower mounting hole is also molded.When concrete strength reach the 80% of design strength with When upper, deformed bar was worn in bellows, applied prestressing force to deformed bar, and pass through spiral bar and anchor slab and taper The cooperation in hole keeps prestressing force, and by injected hole, into bellows, cement injection, vent can guarantee that cement slurry can Sufficiently package deformed bar, sealing off and covering anchorage concrete is poured into upper and lower mounting hole, avoids anchoring piece is exposed from getting rusty, and is completed single The production of prefabricated underground wall body component.Deformed bar is to apply stress, therefore this to wall after pouring in the utility model Precast prestressed formula diaphram wall in utility model is also referred to as the precast prestressed formula diaphram wall of post stretching.Hollow via-hole Strength of wall body not only can be improved, while accelerating speed of application, in addition settable circumferential reinforcement and connector in hollow via-hole, fit For " unification of two walls " diaphram wall, the transverse steel and vertical reinforcement of wall two sides have taken into account prestressed concrete and steel The superior structure performance of both reinforced concretes can efficiently control the crack under working load effect and amount of deflection, before destroying again With preferable ductility.The sides adjacent of two precast prestressed formula diaphram wall components has an exposed steel bar, when use mutual contract It closes, while pouring impervious slightly expanded concrete connector, improve the intensity and impermeability of underground continuous wall connector, intentinonally connect down The globality of continuous wall construction, and the sealing effect of connector is good.In the other embodiments of the utility model:Upper end deformed bar Anchor structure, lower end deformed bar anchor structure can also be bolt fastening structure or structure are welded and fixed;It is precast prestressed The number of formula diaphram wall component can also be three, four or other numbers;First evagination connecting pin, the connection of the second evagination The height at end can be with difference.
The embodiment of the construction method of precast prestressed formula diaphram wall in the utility model:This method includes following step Suddenly:The first step:Groove is excavated, kinds of processes can be used by excavating groove, and Double-wheel milling can also be used in available hydraulic grab claw grooving Scouring machine groove milling can also use gang drill formula drill flute machine drill slot;Second step, by lifting appliance by precast prestressed formula diaphram wall Component is transferred to mixed in the geosyncline of clay hardening agent, transferring in precast prestressed formula diaphram wall building course, contain The mud of clay hardening agent enters in the hollow via-hole of wall, and the mud of argillaceous curing agent is full of in hollow via-hole, and mud is solid It can be used as the permanent filler in hollow via-hole after change, therefore in the present invention, hollow via-hole subtracts in addition to that can play Light wall weight reduces the effect of concrete usage amount, can also play resistance when reducing wall decentralization between mud, simultaneously Contact area between wall and mud is improved, guarantees the effect of wall and mud bonding strength;Third step is hung next prefabricated pre- Stress-type diaphram wall component makes the splayed end of the transverse steel of one of them precast prestressed formula diaphram wall component Between the straight lengths of rebar of the transverse steel of another precast prestressed formula diaphram wall component, splayed end with it is corresponding Transverse steel overlap joint is fixed, the 4th step;To casting concrete between two neighboring precast prestressed formula diaphram wall component, or Person is to insertion connection steel reinforcement cage between two neighboring precast prestressed formula diaphram wall component, by each precast prestressed formula underground Continuous wall member transverse steel outstanding with connect after steel reinforcement cage fixation to two neighboring precast prestressed formula diaphram wall structure Casting concrete between part forms combination between wall member, multiple precast prestressed formula diaphram wall structures after concrete curing Part forms whole diaphram wall.In the other embodiments of the utility model, first step grooving may not be this construction There have been a groove in a part of method, construction site, and when use directly transfers precast prestressed formula diaphram wall component.

Claims (8)

1. precast prestressed formula diaphram wall, the precast prestressed formula underground including at least two or so sequence arrangements is continuous Wall member, each precast prestressed formula diaphram wall component include the wall that thickness extends along the longitudinal direction, and wall includes steel Muscle cage and the integrally-built concrete soil body is consolidated into steel reinforcement cage, it is characterised in that:Steel reinforcement cage includes the cross of arranged crosswise To reinforcing bar and vertical reinforcement, position keeps left precast prestressed in the two neighboring precast prestressed formula diaphram wall component of definition Formula diaphram wall component is left precast prestressed formula diaphram wall component, and the precast prestressed formula underground that position is kept right is continuous Wall member is right precast prestressed formula diaphram wall component, and the transverse steel of left precast prestressed formula diaphram wall component is right End is the first evagination connecting pin for externally protruding out in the concrete soil body of left precast prestressed formula diaphram wall component, right prefabricated pre- The transverse steel left end of stress-type diaphram wall component is externally protrude out in right precast prestressed formula diaphram wall component prefabricated Second evagination connecting pin of concrete bodies, the first evagination connecting pin are staggeredly arranged in above-below direction with the second evagination connecting pin, left Precast prestressed formula diaphram wall component, right precast prestressed formula diaphram wall component sides adjacent between be filled with and described the The sides adjacent of one evagination connecting pin, the second evagination connecting pin and left and right precast prestressed formula diaphram wall component is consolidated into whole The cast-in-place concrete body of body structure.
2. precast prestressed formula diaphram wall according to claim 1, it is characterised in that:Left precast prestressed formula underground Continuously coupling recess portion opposite with recess in the adjacent side of wall member, right precast prestressed formula diaphram wall component, even It connects recess portion to vertically extend, cast-in-place concrete body fills up the coupling recess portion.
3. precast prestressed formula diaphram wall according to claim 1, it is characterised in that:The thickness of the concrete soil body The two sides in direction are provided with the transverse steel, and the first evagination connecting pin is the straight lengths of rebar extended in left-right direction, right pre- Two the second evagination connecting pins of pre-stress type diaphram wall component thickness direction two sides processed are the bending towards opposite bending Lengths of rebar, bending reinforcing steel bar section are located at the inside of straight lengths of rebar, and the end of straight lengths of rebar is connected with the bending starting point of bending reinforcing steel bar section.
4. precast prestressed formula diaphram wall according to claim 3, it is characterised in that:Right precast prestressed formula underground Two the second evagination connecting pins of diaphragm wall component thickness direction two sides are arranged in splayed.
5. precast prestressed formula diaphram wall according to claim 3, it is characterised in that:It is also set in cast-in-place concrete body It is equipped with integrally-built reinforced frame, the second evagination connecting pin is fixedly connected with reinforced frame.
6. precast prestressed formula diaphram wall according to claim 1, it is characterised in that:It is arranged in the concrete soil body There is the hollow via-hole for running through the concrete soil body along the vertical direction.
7. precast prestressed formula diaphram wall according to claim 1, it is characterised in that:At least two are provided in wall A deformed bar spaced apart in left-right direction, the upper and lower ends of deformed bar pass through upper end deformed bar anchor respectively Fixing structure and lower end deformed bar anchor structure are fixed, and each deformed bar is along the curved arc knot in thickness of wall body direction Structure.
8. precast prestressed formula diaphram wall according to claim 7, it is characterised in that:It is set on the same side of wall It is equipped with the upper installing hole for upper end deformed bar anchor structure installation and supplies the lower end deformed bar anchor structure Peace holds mounting hole, and upper installing hole is from the bottom to top gradually towards the oblique of the arc top-direction inclination extension far from arcuate structure Hole, lower mounting hole are the inclined hole from top to bottom gradually extended towards the arc top-direction inclination far from arcuate structure.
CN201820665038.4U 2018-05-07 2018-05-07 A kind of precast prestressed formula diaphram wall Active CN208136903U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110528602A (en) * 2019-08-28 2019-12-03 西安建筑科技大学 Earth lateral pressure experiment simulator under diaphram wall difference level of ground water operating condition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110528602A (en) * 2019-08-28 2019-12-03 西安建筑科技大学 Earth lateral pressure experiment simulator under diaphram wall difference level of ground water operating condition

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