CN1544353A

CN1544353A - Seamless rectangular water pool construction method of bounded or unbounded prestressed force

Info

Publication number: CN1544353A
Application number: CNA2003101135436A
Authority: CN
Inventors: 刘志刚; ・克鲁斯; 史迪威·克鲁斯
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-11-17
Filing date: 2003-11-17
Publication date: 2004-11-10
Anticipated expiration: 2023-11-17
Also published as: CN1306133C

Abstract

A method for constructing seamless rectangular pool with or without binding preload stress comprising the steps of, arranging a plastic board sliding layer between the concrete cushion and the bottom board of the pool, exerting preload stress at the two directions along the horizontal orientation of the bottom board, arranging a sliding layer between the walls and the bottom board of the pool, exerting preload stress at the horizontal and vertical directions of the pool walls, and for covered pool, arranging a rubber sheet support stand between the walls and the bottom board of the pool, exerting a horizontal preload stress at the two directions of the top board, carrying out antiseptic treatment to the stretching end, conducting pressure grouting, after exerting preload stress to the pool walls, casting the large and small feet of the pool walls so as to form a fixed end or hinged point.

Description

Have, Unbonded Prestressed Rectangular Seamless Pond Building Method

Technical field

The invention belongs to the Water and Waste Water Engineering field, specially refer to utilize have, the prestressing without bondn post stretching is to the construction method of seamless rectangular water pool.

Background technology

Along with the in-depth day by day of China's environmental improvement engineering with carry out comprehensively, large-scale bio-aeration pool, oxidation ditch or SBR pond, clean water basin will generally use.According to the present engineering structure method of design of China, expose a lot of problems in the use.For example, by China's " code for structural design of water supply and sewerage engineering " GBJ 50069-2002, every 20m establishes the requirement at one expansion joint under outdoor open-air condition, is the structure of 60 * 100m for large-scale pond such as its planar dimension of exposing to the sun, and just must be divided into 15.These 15 are separated fully, and middle the connection with rubber fastening band carried out waterproof.The consequence of building with this scheme is that globality is poor, shock resistance and poor durability, and the parting place is easy to damage under seismic force effects, and the rubber fastening band place leaks easily, and long-time the use has problem of aging.These a series of problems have proposed new thinking to personnel in the industry, through lot of experiments, proposed to adopt post stretching to have, Non-cohesive Prestressing Force Technology carries out the global design in pond.According to different place statistics, have, prestressing without bondn is seamless (band fillet), and rectangular pool saves cost than traditional parting pond is approximately 9%-30%.In technology in the past, construction to the cylindrical shell pond has solved already, but it is still unresolved to rectangle form pool, we still do not have a design precedent at what this patent content was mentioned to now, have, prestressing without bondn seamless rectangular (band fillet) pool construction carried out the research of novelty, and a kind of new construction method is provided.

Summary of the invention

The technical issues that need to address of the present invention are, construction for the bio-aeration pool of large volume, oxidation ditch, SBR pond, clean water basin, if still use existing technical specifications and method of construction, can't overcome partition type and build poor, the poor durability of shock resistance that is caused, series of malpractice such as the waterstop place leaks and wears out, in order to overcome the defective that exists in these prior arts, again propose a kind ofly to have, the stressed seamless rectangular water pool without adhesion method of construction, at the large-scale rectangular pond embodiment has been proposed.The objective of the invention is to realize by the following technical solutions, a kind ofly have, Unbonded Prestressed Rectangular Seamless Pond Building Method, it is characterized in that this method is carried out according to following step, a is provided with the plastic plate sliding layer between plain concrete cushion layer and pond baseboard; B floor level to both direction socket tight steel strand, apply prestress; C is provided with the plastic plate sliding layer between pool wall and base plate; D also can apply prestress at vertical direction simultaneously in the pool wall horizontal direction, and wherein horizontal steel strand are anchored on the cylindrical shell both sides counterfort of rectangular pool; E is provided with the rubber plate bearing for covering the pond between pool wall and top board, comprise the bearing that any resilient material is made; F is for covering the pond, applies horizontal prestress at the both direction of top board; G carries out rotproofing to the stretch-draw end; H carries out pressure grouting to adopting the seamless band round rectangle of bonded prestress pond; The i pool wall has been applied in the large and small pin of putting of pouring into a mould pool wall behind the prestress again, to form inboardend or hinged point.

This construction method applicable to have, uncovered pond in the stressed seamless rectangular water pool without adhesion and cover two kinds in pond, divide from its planeform, can be divided into two types again, ● rectangle form pool and zero band round rectangle pond, promptly the pond is cylindrical shell or any smooth surface for four jiaos.Describedly have, stressed seamless rectangular water pool without adhesion pool wall bight, can be the cylindrical shell of rectangle or band round rectangle or any smooth surface; They and straight wall line segment intersection are provided with counterfort.

Described plastic plate sliding layer selects for use the less resilient material of frictional coefficient as sliding layer.

The pedestal foot inboardend of described cast pool wall is meant the cantilever design in uncovered pond, and the hinged point of pin of putting for a short time of pool wall is meant that clean water basin etc. cover structure.

Described when between pool wall and base plate, sliding layer being set, to they be separated with plastic plate earlier, treat to pour into a mould the large and small pin of putting again to form inboardend or hinged point after pool wall has applied prestress.

The invention has the beneficial effects as follows that according to the pond class formation that this pond method for constructing is built out, its stress performance is good, weather resistance is strong, and anti-seismic performance is good, and the management maintenance expense is few.Cancelled Temperature Joint, the hidden danger of leaking of thoroughly avoiding rubber fastening band to cause reaches the trouble of bringing for later management maintenance, thereby has overcome all drawbacks in existing piecemeal pond.

Have, prestressing without bondn seamless rectangular (band fillet) pond, employed concrete grade is C35 or more than the C35, Concrete Crack Control is at 0～0.1mm in construction for present method, and the present crack, pond of China generally is controlled at 0.1～0.2mm.

Description of drawings

Fig. 1 is the conventional sinks constructional method;

Fig. 2 is this construction method flow chart of steps;

Fig. 3 for have, prestressing without bondn band fillet seamless rectangular water pool cantilever design sectional view;

Fig. 4 for have, prestressing without bondn band fillet seamless rectangular water pool covers section of structure;

Fig. 5 be have, the orthographic plan of prestressing without bondn band fillet seamless rectangular water pool.

Embodiment

With reference to Fig. 1, in the expression prior art, traditional pond constructional method synoptic diagram, belong to parting pond construction structure, in construction, expansion joint 1 place's concrete disconnects fully at pond base plate, pool wall, and the expansion joint width has 30～50mm wide approximately, be filled with flexible waterproof material in the seam, the middle part is provided with rubber fastening band 2; With reference to Fig. 2, represent construction method steps flow chart skeleton diagram of the present invention; With reference to Fig. 3, expression has, the band round rectangle pond cantilever design sectional view of prestressing without bondn, and pond baseboard, pool wall and top cover all do not have Temperature Joint, mark 3 for sliding layer, mark 4 for horizontal steel strand, 5 is vertical steel strand, the pedestal foot 6 of pool wall has formed inboardend or hinged point.Represent to cover the pool construction sectional view with reference to Fig. 4, pond baseboard, pool wall and top cover all do not have Temperature Joint, and 3 is sliding layer, and 4 is horizontal steel strand, and 5 is vertical steel strand, mark 6 ' for putting pin for a short time, 7 is the rubber plate bearing.With reference to Fig. 5, expression has, the floor map in prestressing without bondn is seamless band round rectangle pond, wherein is provided with buttress 8 in the fillet both sides, and rectangular pool takes up an area of few, flexible arrangement, and the cylindrical shell force-bearing situation is best simultaneously.Pond of the present invention method for constructing also is applicable to the vault of Highrise buildings, in the construction building of large-scale underground parking garage and oil depot.

Claims

1, a kind ofly have, Unbonded Prestressed Rectangular Seamless Pond Building Method, it is characterized in that this method is carried out according to following step, a is provided with the plastic plate sliding layer between plain concrete cushion layer and pond baseboard; B floor level to both direction socket tight steel strand, apply prestress; C is provided with the plastic plate sliding layer between pool wall and base plate; D also can apply prestress at vertical direction simultaneously in the pool wall horizontal direction, and wherein horizontal steel strand are anchored on the cylindrical shell both sides counterfort in rectangular pool bight; E is provided with the rubber plate bearing for covering the pond between pool wall and top board, comprise the bearing that any resilient material is made; F is for covering the pond, applies horizontal prestress at the both direction of top board; G carries out rotproofing to the stretch-draw end; H carries out pressure grouting to adopting the seamless band round rectangle of bonded prestress pond; The i pool wall has been applied in the large and small pin of putting of pouring into a mould pool wall behind the prestress again.

2, according to claim 1ly have, Unbonded Prestressed Rectangular Seamless Pond Building Method, it is characterized in that described plastic plate sliding layer selects for use the less resilient material of frictional coefficient as sliding layer.

3, according to claim 1ly have, Unbonded Prestressed Rectangular Seamless Pond Building Method, it is characterized in that the pool wall of pool bight can be the cylindrical shell of rectangle or band fillet, or any smooth surface; In them and straight wall line segment intersection counterfort is set.

4, according to claim 1ly have, Unbonded Prestressed Rectangular Seamless Pond Building Method, it is characterized in that, described when between pool wall and base plate, sliding layer being set, to they be separated with plastic plate earlier, treat to pour into a mould the large and small pin of putting again to form inboardend or hinged point after pool wall has applied prestress.