WO2011131062A1 - 无张力灌注桩结构 - Google Patents

无张力灌注桩结构 Download PDF

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Publication number
WO2011131062A1
WO2011131062A1 PCT/CN2011/071526 CN2011071526W WO2011131062A1 WO 2011131062 A1 WO2011131062 A1 WO 2011131062A1 CN 2011071526 W CN2011071526 W CN 2011071526W WO 2011131062 A1 WO2011131062 A1 WO 2011131062A1
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Prior art keywords
reinforced concrete
concrete column
bottom ring
galvanized
steel bar
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PCT/CN2011/071526
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English (en)
French (fr)
Inventor
霍宏斌
Original Assignee
斯君哲
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/42—Foundations for poles, masts or chimneys
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same

Definitions

  • the invention relates to a tension-free pouring pile structure, belonging to the technical field of rigid building structures for fixing large equipment by mechanical structure in construction and construction engineering, in particular, belonging to building construction engineering, in particular for fixing such as machine in geotechnical engineering.
  • Large-scale equipment such as racks or towers, and mainly uses the technical field of the basic building structure formed by the mechanical structure of concrete and rigid materials. Background technique
  • the invention provides a tension-free pouring pile structure to realize a more effective reinforcement concrete supporting foundation, further improving the basic supporting force and resisting the huge bending moment.
  • a tension-free pouring pile structure comprising a solid or hollow cylinder mainly formed of concrete, characterized by comprising: reinforced concrete cylinder A, plain concrete cylinder B, finishing steel bar, bottom ring, galvanized corrugated steel Simplified, galvanized corrugated steel, simple, stirrups and casing;
  • the reinforced concrete column A is a cylindrical structure with a hollow space at the center, and the cylindrical outer surface of the reinforced concrete column A is coaxially covered with a plain concrete column B, and the hollow space is filled with backfill soil. ;
  • the galvanized corrugated steel is simply embedded coaxially in the reinforced concrete column A and the plain concrete
  • the pillars B are in close contact with each other; the galvanized corrugated steel is embedded coaxially in the reinforced concrete cylinder A;
  • the bottom ring is made of a metal material embedded in the reinforced concrete cylinder A.
  • the bottom ring is a ring structure, and at least one through hole is disposed thereon, and the through hole is uniformly disposed on the bottom ring at least one circumference.
  • At least one of the finished rolled steel bars is inserted into the reinforced concrete cylinder A in an axially evenly distributed manner at at least one circumferential direction and located in the galvanized corrugated steel simple and galvanized corrugated steel
  • One end of the at least one finishing bar extends perpendicularly from the side end surface of the reinforced concrete column A, and the other end is inserted into the through hole of the bottom ring in a pair and is integrated by the fastening of the nut and the bottom ring.
  • the finishing rolled steel and concrete contact part jacket is provided with a sleeve;
  • the outer circumference of the annular structure formed by the at least one circumferentially uniformly distributed rolled steel bar is uniformly hooped with at least one metal material stirrup.
  • the galvanized corrugated steel and the galvanized corrugated steel are simply pressed from a galvanized steel sheet of 2. 8-3 mils, and the cross section is a broken line, a straight line or a wave type.
  • the reinforced concrete column A is a structure made of concrete of the C35-C40 designation; the plain concrete column B is a structure made of concrete of the C10-C15 designation.
  • the finish rolled steel bar extends vertically from the reinforced concrete column A to the side end face 10-15 cm.
  • the finished rolled steel bar is a rebar; the casing is made of PVC material, hollow, and the inner diameter is larger than the outer diameter of the refined rolled steel bar by 3-5 mm.
  • a tension-free pouring pile structure comprising a solid or hollow cylinder mainly formed of concrete, characterized by comprising: reinforced concrete cylinder A, plain concrete cylinder B, finishing steel bar, bottom ring, galvanized corrugated steel External simplicity, stirrups and casing;
  • the reinforced concrete cylinder A is a cylindrical solid structure, and the cylindrical outer surface of the plain concrete cylinder is coaxially covered with a plain concrete cylinder B;
  • the galvanized corrugated steel is simply embedded coaxially between the reinforced concrete cylinder A and the plain concrete cylinder B and is in close contact with each other;
  • the bottom ring is made of a metal material and embedded in the reinforced concrete cylinder A.
  • the bottom ring is a ring structure, and at least one through hole is disposed thereon, and the through hole is uniformly disposed on the bottom ring at least one circumference. on;
  • At least one of the finishing bars is inserted into the reinforced concrete cylinder A in an axially evenly distributed manner at least in a circumferential direction and located on the inner side of the galvanized corrugated steel; the at least one finishing One end of the reinforcing bar extends perpendicularly to the side end surface of the reinforced concrete column A, and the other end is inserted into the through hole of the bottom ring in a pair and is integrated by the fastening of the nut to the bottom ring;
  • the finishing rolled steel and concrete contact part jacket is provided with a sleeve
  • the outer circumference of the annular structure formed by the at least one circumferentially uniformly distributed rolled steel bar is uniformly hooped with at least one metal material stirrup.
  • the galvanized corrugated steel is simply pressed from a galvanized steel sheet of 2. 8-3 mils, and the cross section is a broken line type, a straight line type or a wave type.
  • the reinforced concrete column A is a structure made of concrete of the C35-C40 designation; the plain concrete column B is a structure made of concrete of the C10-C15 designation.
  • the finish rolled steel bar extends vertically from the reinforced concrete column A to the side end face 10-15 cm.
  • the finished rolled steel bar is a rebar; the casing is made of PVC material, hollow, and the inner diameter is larger than the outer diameter of the finished rolled steel bar by 3-5 mm.
  • the hollow or solid cylindrical structure formed of plain concrete is included, the structure is built in the excavated foundation pit, and the outer periphery of the cylindrical foundation structure is made of corrugated steel, which makes it a peripheral lining and Working face.
  • the outer part of the corrugated steel structure and the excavation surface are backfilled with low-strength concrete. If the structure is in hollow form, the corrugated steel is simple and the corrugated steel is simply placed in a concentric manner, and the interior is filled back.
  • the bottom of the structure is pre-embedded with steel bottom ring; the post-tensioned and rolled steel bar can be evenly fixed on the bottom ring according to the fan-type lower flange mode. All the post-tensioned rolled steel bars extend vertically upwards from the top surface of the foundation structure, and in the future, the lower flange of the fan tower is fixed by a high-strength nut. Finished rolled steel bars and concrete contact areas are covered with PVC sleeves or other equivalent materials to separate the post-tensioned rolled steel bars or anchors from the concrete to ensure a large tensile force on the post-tensioning of the finished rolled steel bars. Pressure Tight effect. Therefore, the entire infrastructure can withstand the large bending moments transmitted from the upper high-rise structure to produce a more effective reinforced concrete support foundation, further improving the support of the foundation structure and the effect of resisting large bending moments.
  • FIG. 1 is a top plan view of a preferred embodiment of the structure of the present invention.
  • FIG. 2 is a schematic cross-sectional view showing a preferred embodiment of the structure of the present invention.
  • FIG. 3 is a top plan view showing another embodiment of the structure of the present invention.
  • FIG. 4 is a schematic cross-sectional view showing another embodiment of the structure of the present invention. Description of the figures in the figure
  • a plain concrete structure is a structure made of concrete without or without reinforcing steel bars.
  • the reinforced concrete structure is configured with stressed steel bars, such as rolled steel bars.
  • a structure of a preferred embodiment of a tension-free pouring pile structure includes solid or hollow cylinders mainly composed of concrete, including: high-strength reinforced concrete column A1, low-strength concrete column B2, finished rolled steel 4, bottom ring 5, galvanized corrugated steel simple 7 , galvanized Corrugated steel simple inside 8, stirrup 9 and casing 10;
  • Low-strength concrete refers to concrete with C1 0 or C15
  • high-strength reinforced concrete refers to concrete with C 35 or higher.
  • the reinforced concrete column A1 is a cylindrical structure with a hollow space at the center, which is equivalent to a hollow cylinder.
  • the upper and lower end faces and sides of the cylinder are formed by infusion of high-strength concrete of equal thickness or unequal thickness.
  • the minimum thickness of the end face or side may be one quarter or one fifth of the height of the entire cylinder (as shown in Fig. 2); the hollow space is filled with backfill 3; the cylindrical outer surface of the reinforced concrete cylinder A1
  • the coaxial ring-covered concrete column B2 that is, the reinforced concrete column A1 and the plain concrete column B2 are coaxial
  • the plain concrete column B2 is low-strength plain concrete
  • the plain concrete column B2 has two inverted columns.
  • a right-angled triangle that is attached to the cylindrical edge of the reinforced concrete cylinder A1, so that the overall cross section of the reinforced concrete cylinder A1 and the plain concrete cylinder B2 form an inverted trapezoidal state with a bottom-down downward, which makes the structure more stable.
  • the galvanized corrugated steel simple outer 7 is embedded between the reinforced concrete column A1 and the plain concrete column B2 and is in close contact with each other; the galvanized corrugated steel is embedded in the coaxial 8 Set in the reinforced concrete column A1 (ie reinforced concrete column Al, plain concrete column B2, galvanized corrugated steel simple outer 7 and galvanized corrugated steel simple 8 coaxial;), as shown in Figure 2
  • the galvanized corrugated steel simple inner 8 along one side end face of the reinforced concrete cylinder A1 is vertically inserted to the other end face, the upper and lower ends of the galvanized corrugated steel simple 8 are clamped on the reinforced concrete column A1 Between the end face and the annular side wall, and the middle section is backed by the backfill 3;
  • the bottom ring 5 is embedded or pre-buried in the reinforced concrete column A1 as shown in FIG. 2, and the bottom ring 5 is disposed in the plain concrete column A1 near the end surface (the trapezoid upper bottom)
  • the bottom ring 5 is a ring (or blue disk) structure, and at least one through hole is provided on the upper end surface thereof, and the through hole is formed into at least one circumference (for example, a single circumference or a double circumference, in this case, a double circumference) Uniformly disposed on the bottom ring 5, respectively, so that the extension lines of the adjacent two holes on the different circumferences pass through the center (or the axis) where the bottom ring 5 is located; that is, the number of through holes provided on different circumferences is the same .
  • At least one of the above-mentioned finishing bars 4 is uniformly inserted into the reinforced concrete column A1 in the axial direction at least one circumference (for example, a double circumference) and is located in the galvanized corrugated steel Between the galvanized corrugated steel and the inner 8; the extension of the line connecting the adjacent two refining bars on different circumferences passes through the center (or axis) where the reinforced concrete cylinder A1 and the bottom ring 5 are located; The number of finishing bars set on the circumference is the same.
  • One end of the at least one (pair) finishing rolled steel bar 4 (as shown in FIG.
  • the protruding end surface is 10-15 cm
  • the embedded nut 6 locks the finishing rolled steel bar 4 at the end face of the reinforced concrete column A1; the other end of the finishing rolled steel bar 4 is inserted into the through hole of the bottom ring 5 in a pair and is fastened by the nut to the bottom ring 5
  • the protruding portion is combined with the end surface.
  • the finish rolled steel bar 4 and the concrete contact portion are provided with a sleeve 10; the sleeve 10 is made of PVC material, and the function is to separate the finished rolled steel from the concrete.
  • the PVC casing is made of PVC material, hollow, and the inner diameter is larger than the outer diameter of the finished steel bar by more than 3 ( (for example, 3-5 ⁇ meters).
  • the outer circumference of the annular structure formed by the at least one circumferentially uniformly distributed rebar 4 uniformly entrains at least one (one) metal material stirrup 9;
  • the stirrup 9 is actually circular, bypassing the finishing steel 4, and the material is ordinary 2 grade steel.
  • the upper and lower sides of the bottom ring 5 are also fixed by the nut.
  • the galvanized corrugated steel simple outer 7 and the galvanized corrugated steel simple inner 8 are pressed by a galvanized steel sheet of 2. 8-3 mils, and the cross section is a broken line type, a straight line type or a wave type;
  • the reinforced concrete column A1 is a structure made of concrete of the C35-C40 designation;
  • the plain concrete column B2 is a structure made of concrete of the C10-C15 designation.
  • the structure of another embodiment of a tension-free pouring pile structure according to the present invention comprises a solid or hollow cylinder mainly formed of plain concrete, comprising: a high-strength reinforced concrete cylinder A1, low Strength concrete concrete column B2, finishing rolled steel 4, bottom ring 5, galvanized corrugated steel simple outer 7 , stirrup 9 and casing 10;
  • Low-strength plain concrete refers to C10 or C15 graded concrete, while high-strength reinforced concrete is Refers to concrete with a marking above C 35.
  • the reinforced concrete column A1 is a solid cylindrical structure formed by infusion of high-strength concrete; the cylindrical outer surface of the reinforced concrete column A1 is coaxially covered with a plain concrete column B2, and the concrete column is B2 is low-strength concrete, and the concrete concrete column B2 is a right-angled triangle with two inverted right-angled edges attached to the cylindrical edge of the reinforced concrete cylinder A1, so that the reinforced concrete cylinder A1 and the plain concrete cylinder B2 have an overall cross section. Forms an inverted trapezoidal state with a bottom-down, which makes the structure more stable.
  • the galvanized corrugated steel simple outer 7 coaxial buried between the reinforced concrete column A1 and the plain concrete column B2 and in close contact with each other; equivalent to galvanized corrugated steel simple outer 7 along the reinforced concrete column
  • the body A1 and the plain concrete column B2 are vertically inserted from one end (trapezoidal lower bottom) to the other end (trapezoidal upper bottom), which is also equivalent to the galvanized corrugated steel simple outer 7 is clamped in the reinforced concrete cylinder A1 and the prime Between concrete columns B2;
  • the bottom ring 5 is embedded or pre-buried in the reinforced concrete column A1 as shown in FIG. 4, and the bottom ring 5 is disposed in the reinforced concrete column A1 near the end surface (the trapezoidal upper bottom)
  • the bottom ring 5 is a ring (or blue disk) structure, and at least one through hole is disposed thereon, and the through hole is formed into at least one circumference (for example, a single circumference or a double circumference, in this case, a double circumference) Uniformly disposed on the bottom ring 5, the extension lines connecting the centers of the adjacent two holes on different circumferences pass through the center of the bottom ring 5; that is, the number of through holes provided on different circumferences is the same.
  • At least one of the above-mentioned finishing bars 4 is uniformly inserted into the reinforced concrete column A1 in the axial direction at least one circumference (double circumference), and is located inside the galvanized corrugated steel sheet 7;
  • the extension lines of the adjacent two perfectly-rolled steel bars on different circumferences pass through the center (or the axis) where the reinforced concrete cylinder A 1 and the bottom ring 5 are located; that is, the number of finish rolling bars set on different circumferences is the same.
  • One end of the at least one (pair) finishing rolled steel bar 4 (Fig. 3 or Fig.
  • the portion of the finished rolled steel bar 4 and the concrete (the portion where the middle portion of the finished rolled steel bar is in contact with the concrete)
  • the outer sleeve is provided with a sleeve 10; the sleeve 10 is made of PVC material and functions to separate the finished rolled steel from the concrete.
  • the PVC casing is made of PVC material, hollow, and the inner diameter is larger than the outer diameter of the finished steel bar by more than 3 ( meters (for example, 3-5 ⁇ meters).
  • the outer circumference of the annular structure formed by the at least one circumferentially uniformly distributed rebar 4 uniformly entrains at least one (one) metal material stirrup 9;
  • the stirrup 9 is actually circular, bypassing the finishing steel 4, which is a common grade 2 steel.
  • the bottom ring 5 is up and down, also the nut, which is fixed to the finished steel bar.
  • the galvanized corrugated steel is simply pressed from a galvanized steel sheet of 2. 8-3 mils, and the cross section is a broken line type, a straight line type or a wave type;
  • the reinforced concrete column A1 is a structure made of concrete of the C35-C40 designation; the plain concrete column B2 is a structure made of concrete of the C10-C15 designation.
  • the tension-free pouring pile structure of the invention is installed and used, and the corrugated galvanized steel can be first placed in the foundation pit after the foundation pit is dug. After the finished rolled steel bar and the bottom ring are assembled outside the foundation pit, they are placed in the corrugated galvanized steel. Finally, the concrete is poured. After the concrete has been poured, all of the above components are poured into the concrete and become the permanent part of the basic tension-free cast-in-place pile structure.
  • the inner and outer corrugated steels are concentrically placed, and the distance between the inner and outer sections is determined by design, generally above 400 m.
  • the outer part refers to the outer ring corrugated steel slip, which is placed in the foundation pit after the excavation of the foundation pit.
  • the outer ring of low strength plain concrete is then poured, as described above.
  • the components such as the finished rolled steel bar and the bottom ring are placed in the outer surface of the corrugated steel, and after being fixed, the corrugated steel is simply placed inside.
  • High-strength reinforced concrete (above C35) is watered between inside and outside. Inside the corrugated interior is backfill, as in Figures 1 and 2 of the preferred embodiment.
  • Figures 3 and 4 show the structure of another embodiment, that is, there is no corrugated steel, and only the outer one is simplified. In this case, after the finishing rolled steel bar and the bottom ring are placed, the outer thinned water is completely filled with high-strength reinforced concrete (C35 or more). ). There is no backfilling.
  • C35 high-strength reinforced concrete
  • the pile structure comprises a hollow or solid cylindrical structure formed by concrete, and the pile structure is built in the excavated foundation pit, and the outer periphery of the cylindrical pile structure is corrugated steel or driven into the row pile structure, so that it becomes a peripheral lining. And the work surface. Corrugated steel is used either between the outside of the pile structure and the excavation surface. Low-strength plain concrete backfilling.
  • the pile structure is hollow, the corrugated steel is simple and the corrugated steel is simple or the pile is placed concentrically, and the interior is filled back.
  • the bottom of the foundation is pre-buried in the steel bottom ring.
  • the post-tensioned and rolled steel bars or anchors are evenly fixed on the bottom ring according to the fan-type lower flange mode. All the post-tensioned rebars or anchors extend vertically upwards from the top surface of the pile structure.
  • the lower flange of the fan tower is fixed by a high-strength nut.
  • the lower flange of the fan tower is provided by the fan manufacturer. It is a standard mode, fan. Manufacturers have detailed technical descriptions and drawings for reference. Finished rolled steel bar (or anchor)
  • PVC bushings or other equivalent materials separate the post-tensioned rolled steel bars (or anchors) from the concrete to ensure a large tensile force on the post-tensioning of the finished rolled steel bars, and a large compaction effect on the concrete. Thereby the entire pile structure can withstand the large bending moments transmitted from the upper towering structure. In order to produce a more effective reinforced concrete support foundation, the basic support force and the effect of resisting large bending moments are further improved.

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  • Engineering & Computer Science (AREA)
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Description

无张力灌注桩结构 技术领域
本发明涉及一种无张力灌注桩结构， 属于建设、 建筑工程中利用机械结 构固定大型设备的刚性建筑结构的技术领域， 具体说属于建筑建设工程中， 特别是岩土工程中用于固定诸如机架或塔架等大型设备， 且主要利用混凝土 及刚性材料的机械结构形成的基础建筑结构的技术领域。 背景技术
目前， 对于大型或超大型设备的机架、 塔架的固定， 包括风力发电机、 风力涡轮机、 输电线、 街道照明和信号装置、 桥梁支座、 商业招牌、 高速公 路招牌、 滑雪缆车等等多釆用现场构造的混凝土支撑基础。 由于这些设备或 装置多置于户外， 且高大沉重， 而且对于不同土质的影响直接关系到其基础 结构的可靠性； 因此不同的基础结构产生的支撑力及抗巨大弯矩是存在很大 的差别的。 发明内容
本发明提供了一种无张力灌注桩结构， 以实现更为有效的加固混凝土支 撑基础， 进一步提高基础支撑力及抗巨大弯矩的目的。
为达到上述目的本发明的技术方案是：
一种无张力灌注桩结构， 包括主要由混凝土形成的实心或空心柱体， 其 特征在于， 包括： 钢筋混凝土柱体 A, 素混凝土柱体 B, 精轧钢筋， 底环， 镀 锌波紋钢简外简， 镀锌波紋钢简内简， 箍筋和套管；
所述的钢筋混凝土柱体 A为中心设置一空心空间的圆柱状结构， 该钢筋 混凝土柱体 A圆柱状的外表面同轴环覆有素混凝土柱体 B,所述的空心空间内 充填回填土；
所述的镀锌波紋钢简外简同轴埋设位于该钢筋混凝土柱体 A 与素混凝土 柱体 B之间并分别与之紧密接触； 所述的镀锌波紋钢简内简同轴埋设置在该 钢筋混凝土柱体 A内；
所述的底环为金属材质埋设置于该钢筋混凝土柱体 A 内， 该底环为圆环 结构， 其上设置至少一个通孔， 所述的通孔成至少一个圆周均匀设置在该底 环上；
至少一个所述的精轧钢筋沿轴向呈至少一个圆周状均匀分布的插入所述 的钢筋混凝土柱体 A 内并位于所述的镀锌波紋钢简外简和镀锌波紋钢简内简 之间； 所述的至少一个精轧钢筋一端垂直伸出该钢筋混凝土柱体 A —侧端面 , 另一端成对的插入所述底环的通孔内并通过螺母与底环紧固的连接为一体 该精轧钢筋和混凝土接触部分外套设有套管；
所述的呈至少一个圆周状均匀分布的精轧钢筋形成的环状结构的外圆周 均匀箍勒有至少一个金属材质的箍筋。
该镀锌波紋钢简外简和镀锌波紋钢简内简由 2. 8-3 亳米的镀锌钢板压制 而成， 截面为折线型、 直线型或波浪型。
该钢筋混凝土柱体 A为 C35-C40标号的混凝土制成的结构； 该素混凝土 柱体 B为 C10-C15标号的混凝土制成的结构。
该精轧钢筋垂直伸出该钢筋混凝土柱体 A—侧端面 10-15厘米。
该精轧钢筋为螺紋钢； 该套管为 PVC材料， 中空， 内直径大于精轧钢筋 外径 3-5亳米。
一种无张力灌注桩结构， 包括主要由混凝土形成的实心或空心柱体， 其 特征在于， 包括： 钢筋混凝土柱体 A, 素混凝土柱体 B, 精轧钢筋， 底环， 镀 锌波紋钢简外简， 箍筋和套管；
所述的钢筋混凝土柱体 A为圆柱状的实心结构， 该素混凝土柱体 A圆柱 状的外表面同轴环覆有素混凝土柱体 B;
所述的镀锌波紋钢简外简同轴埋设位于该钢筋混凝土柱体 A 与素混凝土 柱体 B之间并分别与之紧密接触； 所述的底环为金属材质埋设置于该钢筋混凝土柱体 A 内， 该底环为圆环 结构， 其上设置至少一个通孔， 所述的通孔成至少一个圆周均匀设置在该底 环上；
至少一个所述的精轧钢筋沿轴向呈至少一个圆周状均匀分布的插入所述 的钢筋混凝土柱体 A 内并位于所述的镀锌波紋钢简外简内侧； 所述的至少一 个精轧钢筋一端垂直伸出该钢筋混凝土柱体 A —侧端面， 另一端成对的插入 所述底环的通孔内并通过螺母与底环紧固的连接为一体；
该精轧钢筋和混凝土接触部分外套设有套管；
所述的呈至少一个圆周状均匀分布的精轧钢筋形成的环状结构的外圆周 均匀箍勒有至少一个金属材质的箍筋。
该镀锌波紋钢简外简由 2. 8-3 亳米的镀锌钢板压制而成， 截面为折线型 、 直线型或波浪型。
该钢筋混凝土柱体 A为 C35-C40标号的混凝土制成的结构； 该素混凝土 柱体 B为 C10-C15标号的混凝土制成的结构。
该精轧钢筋垂直伸出该钢筋混凝土柱体 A—侧端面 10-15厘米。
该精轧钢筋为螺紋钢； 该套管为 PVC材料， 中空， 内直径大于精轧钢筋 外径 3-5亳米。 釆用本发明的技术方案由于包括由素混凝土形成的空心或实心圆柱体结 构， 本结构建造在挖好的基坑当中， 圆柱体基础结构外围釆用波紋钢简结构， 使其成为外围衬砌和工作面。 波紋钢简结构外面与开挖面之间用低强度素混 凝土回填。 如本结构釆用空心形式， 波紋钢简内简和波紋钢简外简釆用同心 放置， 内简之中回填土。 结构下部预埋钢底环； 后张拉精轧钢筋可按照风机 塔简下法兰模式均匀固定在底环上。 所有的后张拉精轧钢筋垂直向上伸出基 础结构顶面， 将来和风机塔简下法兰由高强螺母固定。 精轧钢筋中部和混凝 土接触范围外套 PVC套管或其它同等材料， 使后张拉精轧钢筋或锚杆和混凝 土分隔， 以保证对精轧钢筋后张拉时产生巨大拉力， 而对混凝土产生巨大压 紧效果。 从而使整个基础结构可以承受由上部高耸结构传来的巨大弯矩， 以 产生更为有效的加固混凝土支撑基础， 进一步提高基础结构支撑力及抗巨大 弯矩的效果。 附图说明
图 1 为本发明结构较佳实施例俯视示意图;
图 2 为本发明结构较佳实施例截面示意图;
图 3 为本发明结构另一实施例俯视示意图;
图 4 为本发明结构另一实施例截面示意图。 图中标号说明
1、 钢筋混凝土柱体 A
2、 素混凝土柱体 B
3、 回填土
4、 精轧钢筋
5、 底环
6、 螺母
7、 镀锌波紋钢简外简
8、 镀锌波紋钢简内简
9、 箍筋
10、 套管 具体实施方式
下面结合附图对本发明详细说明如下。
我们知道素混凝土结构即是由无筋或不配置受力钢筋的混凝土制成的结 构。 钢筋混凝土结构配置受力钢筋， 如精轧钢筋。
如图 1和图 2所示， 为本发明一种无张力灌注桩结构较佳实施例的结构, 包括主要由混凝土形成的实心或空心柱体，包括： 高强度钢筋混凝土柱体 A1 , 低强度素混凝土柱体 B2 , 精轧钢筋 4 , 底环 5 , 镀锌波紋钢简外简 7 , 镀锌波 紋钢简内简 8， 箍筋 9和套管 1 0 ;
低强度素混凝土是指 C1 0或 C15标号的混凝土， 而高强度钢筋混凝土是 指 C 35以上标号的混凝土。
所述的钢筋混凝土柱体 A1为中心设置一空心空间的圆柱状结构， 即相当 于一个中空的圆柱体， 圆柱体的上下端面和侧面为等厚度或不等厚度的高强 度素混凝土灌注形成， 端面或侧面的最小厚度可为整个圆柱体高度的四分之 一或五分之一 （如图 2 ); 所述的空心空间内充填回填土 3 ; 该钢筋混凝土柱 体 A1圆柱状的外表面同轴环覆有素混凝土柱体 B2 (即钢筋混凝土柱体 A1和 素混凝土柱体 B2同轴）， 该素混凝土柱体 B2为低强度素混凝土， 素混凝土柱 体 B2截面为两个倒立的直角边贴覆在钢筋混凝土柱体 A1 圆柱形的边缘的直 角三角形， 使钢筋混凝土柱体 A1和素混凝土柱体 B2整体截面形成一个上底 向下的倒梯形状态， 这种状态使结构更为稳定。
所述的镀锌波紋钢简外简 7同轴埋设位于该钢筋混凝土柱体 A1与素混凝 土柱体 B2之间并分别与之紧密接触； 所述的镀锌波紋钢简内简 8同轴埋设置 在该钢筋混凝土柱体 A1 内 （即钢筋混凝土柱体 Al、 素混凝土柱体 B2、 镀锌 波紋钢简外简 7和镀锌波紋钢简内简 8同轴；)， 如图 2所示相当于镀锌波紋钢 简内简 8沿钢筋混凝土柱体 A1的一侧端面垂直插入至另一侧的端面， 镀锌波 紋钢简内简 8的上下两端夹持在钢筋混凝土柱体 A1上下端面和环状侧壁之间 , 而中部段被回填土 3顶抵住；
所述的底环 5为金属材质埋设置于或预埋入设置于该钢筋混凝土柱体 A1 内， 如图 2为底环 5设置于素混凝土柱体 A1内靠近一端面处（梯形上底处） , 该底环 5 为圆环 （或发兰盘） 结构， 其上（端面）设置至少一个通孔， 所 述的通孔成至少一个圆周 （例如单圆周或双圆周， 本例为双圆周状） 分别均 匀设置在该底环 5上，使不同圆周上相邻两孔圆心连线的延长线均通过底环 5 所在的圆心 （或轴心）； 即不同圆周上设置的通孔数相同。 至少一个所述的精轧钢筋 4 沿轴向呈至少一个圆周 （例如双圆周）状分 别均匀分布的插入所述的钢筋混凝土柱体 A1内并位于所述的镀锌波紋钢简外 简 7和镀锌波紋钢简内简 8之间； 使不同圆周上相邻两精轧钢筋圆心连线的 延长线均通过钢筋混凝土柱体 A1和底环 5所在的圆心 （或轴心；)； 即不同圆 周上设置的精轧钢筋数相同。 所述的至少一个（一对）精轧钢筋 4 (如图 1或 2 ) 一端垂直伸出该钢筋混凝土柱体 A1 —侧端面 （例如伸出端面 10-15厘米 ), 伸出部分与端面结合处嵌固螺母 6锁固精轧钢筋 4于钢筋混凝土柱体 A1 端面处； 精轧钢筋 4另一端成对的插入所述底环 5 的通孔内并通过螺母与底 环 5紧固的连接为一体；
该精轧钢筋 4 和混凝土接触部分（精轧钢筋中部和混凝土接触的部分） 外套设有套管 10; 该套管 10为 PVC材料， 作用是把精轧钢筋和混凝土分离。 PVC套管釆用 PVC材料， 中空， 内直径大于精轧钢筋外径 3亳米以上（例如 3-5亳米）。
所述的呈至少一个圆周状均匀分布的精轧钢筋 4形成的环状结构的外圆 周 （即外侧精轧钢筋 4形成的圆周） 均匀箍勒有至少一个（一道）金属材质 的箍筋 9 ; 箍筋 9其实是环形的， 绕过精轧钢筋 4 , 材质为普通 2级钢筋。 底 环 5的上下同样也是螺母固定精轧钢筋。
该镀锌波紋钢简外简 7和镀锌波紋钢简内简 8 由 2. 8-3亳米的镀锌钢板 压制而成， 截面为折线型、 直线型或波浪型；
该钢筋混凝土柱体 A1为 C35-C40标号的混凝土制成的结构； 该素混凝土 柱体 B2为 C10-C15标号的混凝土制成的结构。 如图 3和图 4所示， 为本发明一种无张力灌注桩结构另一实施例的结构， 包括主要由素混凝土形成的实心或空心柱体， 包括： 高强度钢筋混凝土柱体 A1 , 低强度素混凝土柱体 B2 , 精轧钢筋 4 , 底环 5 , 镀锌波紋钢简外简 7 , 箍 筋 9和套管 10;
低强度素混凝土是指 C10或 C15标号的混凝土， 而高强度钢筋混凝土是 指 C 35以上标号的混凝土。
所述的钢筋混凝土柱体 A1为实心的圆柱状结构， 由高强度素混凝土灌注 形成； 该钢筋混凝土柱体 A1圆柱状的外表面同轴环覆有素混凝土柱体 B2 , 该 素混凝土柱体 B2为低强度素混凝土， 素混凝土柱体 B2截面为两个倒立的直 角边贴覆在钢筋混凝土柱体 A1圆柱形的边缘的直角三角形， 使钢筋混凝土柱 体 A1和素混凝土柱体 B2整体截面形成一个上底向下的倒梯形状态， 这种状 态使结构更为稳定。
所述的镀锌波紋钢简外简 7同轴埋设位于该钢筋混凝土柱体 A1与素混凝 土柱体 B2之间并分别与之紧密接触； 相当于镀锌波紋钢简外简 7沿钢筋混凝 土柱体 A1 与素混凝土柱体 B2之间从一端（梯形下底 )垂直插入至另一端（ 梯形上底）， 也相当于镀锌波紋钢简外简 7被夹持在钢筋混凝土柱体 A1与素 混凝土柱体 B2之间；
所述的底环 5为金属材质埋设置于或预埋入设置于该钢筋混凝土柱体 A1 内， 如图 4为底环 5设置于钢筋混凝土柱体 A1内靠近一端面处（梯形上底处 ), 该底环 5为圆环（或发兰盘）结构， 其上设置至少一个通孔， 所述的通孔 成至少一个圆周 （例如单圆周或双圆周， 本例为双圆周状）分别均匀设置在 该底环 5上， 使不同圆周上相邻两孔圆心连线的延长线均通过底环 5所在的 圆心； 即不同圆周上设置的通孔数相同。
至少一个所述的精轧钢筋 4 沿轴向呈至少一个圆周 （双圆周）状分别均 匀分布的插入所述的钢筋混凝土柱体 A1内（并位于镀锌波紋钢简外简 7内侧 )；使不同圆周上相邻两精轧钢筋圆心连线的延长线均通过钢筋混凝土柱体 A 1 和底环 5所在的圆心 （或轴心）； 即不同圆周上设置的精轧钢筋数相同。 所述 的至少一个（一对）精轧钢筋 4 (如图 3或图 4 ) 一端垂直伸出该钢筋混凝土 柱体 A1—侧端面 （例如伸出端面 1 0-15厘米）， 伸出部分与端面结合处嵌固 螺母 6锁固精轧钢筋 4于钢筋混凝土柱体 A1端面处； 精轧钢筋 4另一端成对 的插入所述底环 5的通孔内并通过螺母与底环 5紧固的连接为一体；
该精轧钢筋 4 和混凝土接触部分（精轧钢筋中部和混凝土接触的部分） 外套设有套管 10; 该套管 10为 PVC材料， 作用是把精轧钢筋和混凝土分离。 PVC套管釆用 PVC材料， 中空， 内直径大于精轧钢筋外径 3亳米以上（例如 3-5亳米）。
所述的呈至少一个圆周状均匀分布的精轧钢筋 4形成的环状结构的外圆 周 （即外侧精轧钢筋 4形成的圆周） 均匀箍勒有至少一个（一道）金属材质 的箍筋 9; 箍筋 9其实是环形的， 绕过精轧钢筋 4 , 为普通 2级钢筋。 底环 5 上下， 同样也是螺母， 固定精轧钢筋的。
该镀锌波紋钢简外简 7 由 2. 8-3亳米的镀锌钢板压制而成， 截面为折线 型、 直线型或波浪型；
该钢筋混凝土柱体 A1为 C35-C40标号的混凝土制成的结构； 该素混凝土 柱体 B2为 C10-C15标号的混凝土制成的结构。 本发明一种无张力灌注桩结构于安装使用中， 波紋镀锌钢简可在地基基 坑挖好后首先放入基坑。 精轧钢筋和底环在基坑外部组装好之后， 整体放入 波紋镀锌钢简内。 最后浇灌混凝土。 混凝土浇好后， 以上所有部件都浇灌在 混凝土里， 成为基础无张力灌注桩结构永久部分。
内外波紋钢简是同心放置， 内简和外简间距离由设计确定， 一般在 400 亳米以上。 外简指外圈波紋钢简， 在基坑开挖后放入基坑。 然后浇灌外圈低 强度素混凝土， 如上所述。 再将精轧钢筋及底环等构件放入波紋钢简外简里 面， 固定好之后， 在放入波紋钢简内简。 内外简之间浇灌高强度钢筋混凝土 ( C35以上）。 波紋内简里面是回填土， 如较佳实施例的图 1和图 2。
图 3和 4是另一实施例的结构， 即没有波紋钢简内简， 只有外简， 这样 的话， 在精轧钢筋和底环放入后， 外简里面全部浇灌高强度钢筋混凝土（C35 以上）。 没有回填土的存在。
本发明由于桩结构包括由混凝土形成的空心或实心圆柱体结构， 桩结构 建造在挖好的基坑当中， 圆柱体桩结构外围釆用波紋钢简或打入排桩结构， 使其成为外围衬砌和工作面。 波紋钢简或打入排桩结构外面与开挖面之间用 低强度素混凝土回填。 如桩结构釆用空心形式， 波紋钢简内简和波紋钢简外 简或排桩釆用同心放置， 内简之中回填土。 基础下部预埋钢底环。 后张拉精 轧钢筋或锚杆按照风机塔简下法兰模式均匀固定在底环上。 所有的后张拉精 轧钢筋或锚杆垂直向上伸出桩结构顶面， 将来和风机塔简下法兰由高强螺母 固定， 风机塔简下法兰是由风机厂商提供， 是标准模式， 风机厂商都有详细 的技术说明和图纸供参考。 精轧钢筋 （或锚杆） 中部和混凝土接触范围外套
PVC套管或其它同等材料， 使后张拉精轧钢筋（或锚杆）和混凝土分隔， 以保 证对精轧钢筋后张拉时产生巨大拉力， 而对混凝土产生巨大压紧效果。 从而 使整个桩结构可以承受由上部高耸结构传来的巨大弯矩。 以产生更为有效的 加固混凝土支撑基础， 进一步提高基础支撑力及抗巨大弯矩的效果。
仅将上文为对本发明原理的说明。 此外， 因为熟悉此项技术者易于进行 众多的修改和变更， 所以不应将本发明限于所显示和描述的精确的构造和操 作中。

Claims

权 利 要 求 书
1、 一种无张力灌注桩结构， 包括主要由混凝土形成的实心或空心柱体， 其特征在于， 包括： 钢筋混凝土柱体 A ( 1 ), 素混凝土柱体 B ( 2), 精轧钢筋
(4), 底环（ 5 ), 镀锌波紋钢简外简（ 7 ), 镀锌波紋钢简内简（ 8 ), 箍筋（ 9 ) 和套管 （10);
所述的钢筋混凝土柱体 A ( 1 )为中心设置一空心空间的圆柱状结构， 该 钢筋混凝土柱体 A ( 1 ) 圆柱状的外表面同轴环覆有素混凝土柱体 B ( 2 ), 所 述的空心空间内充填回填土（3);
所述的镀锌波紋钢简外简（ 7 )同轴埋设位于该钢筋混凝土柱体 A ( 1 )与 素混凝土柱体 B (2)之间并分别与之紧密接触； 所述的镀锌波紋钢简内简（8 ) 同轴埋设置在该钢筋混凝土柱体 A ( 1 ) 内；
所述的底环（5 )为金属材质埋设置于该钢筋混凝土柱体 A ( 1 ) 内， 该底 环（5 )为圆环结构， 其上设置至少一个通孔， 所述的通孔成至少一个圆周状 均匀设置在该底环 （5 )上；
至少一个所述的精轧钢筋（4) 沿轴向呈至少一个圆周状均匀分布的插入 所述的钢筋混凝土柱体 A ( 1 ) 内并位于所述的镀锌波紋钢简外简（ 7 )和镀锌 波紋钢简内简 （8 ) 之间； 所述的至少一个精轧钢筋 （4 ) 一端垂直伸出该钢 筋混凝土柱体 A ( 1 )—侧端面， 另一端成对的插入所述底环（5 )的通孔内并 通过螺母与底环 （5 ) 紧固的连接为一体；
该精轧钢筋 （4) 和混凝土接触部分外套设有套管 （10);
所述的呈至少一个圆周状均匀分布的精轧钢筋（4)形成的环状结构的外 圆周均匀箍勒有至少一个金属材质的箍筋 （9)。
2、 如权利要求 1所述的无张力灌注桩结构， 其特征在于该镀锌波紋钢简 外简 （7 )和镀锌波紋钢简内简 （8 ) 由 2.8-3 亳米的镀锌钢板压制而成， 截 面为折线型、 直线型或波浪型。
3、 如权利要求 1所述的无张力灌注桩结构， 其特征在于该钢筋混凝土柱 体 A ( 1 )为 C35-C40标号的混凝土制成的结构； 该素混凝土柱体 B (2) 为 C 10-C15标号的混凝土制成的结构。
4、 如权利要求 1 所述的无张力灌注桩结构， 其特征在于该精轧钢筋 （4 )垂直伸出该钢筋混凝土柱体 A (1 ) 一侧端面 10-15厘米。
5、 如权利要求 1 所述的无张力灌注桩结构， 其特征在于该精轧钢筋 （4 )为螺紋钢； 该套管 （10)为 PVC材料， 中空， 内直径大于精轧钢筋 （4) 外 径 3-5亳米。
6、一种无张力灌注桩结构，包括主要由素混凝土形成的实心或空心柱体, 其特征在于， 包括： 钢筋混凝土柱体 A (1 ), 素混凝土柱体 B ( 2), 精轧钢筋
(4), 底环 （5), 镀锌波紋钢简外简 （7), 箍筋 （9)和套管 （10);
所述的钢筋混凝土柱体 A ( 1 )为圆柱状的实心结构， 该钢筋混凝土柱体 A (1 ) 圆柱状的外表面同轴环覆有素混凝土柱体 B (2);
所述的镀锌波紋钢简外简（ 7 )同轴埋设位于该钢筋混凝土柱体 A ( 1 )与 素混凝土柱体 B (2)之间并分别与之紧密接触；
所述的底环（5 )为金属材质埋设置于该钢筋混凝土柱体 A (1 ) 内， 该底 环（5)为圆环结构， 其上设置至少一个通孔， 所述的通孔成至少一个圆周状 均匀设置在该底环 （5)上；
至少一个所述的精轧钢筋（4) 沿轴向呈至少一个圆周状均匀分布的插入 所述的钢筋混凝土柱体 A ( 1 ) 内并位于所述的镀锌波紋钢简外简 （7) 内侧； 所述的至少一个精轧钢筋（4)一端垂直伸出该钢筋混凝土柱体 A ( 1 )—侧端 面， 另一端成对的插入所述底环 （5 ) 的通孔内并通过螺母与底环 （5 ) 紧固 的连接为一体；
该精轧钢筋 （4) 和混凝土接触部分外套设有套管 （10);
所述的呈至少一个圆周状均匀分布的精轧钢筋（4)形成的环状结构的外 圆周均匀箍勒有至少一个金属材质的箍筋 （9)。
7、 如权利要求 6所述的无张力灌注桩结构， 其特征在于该镀锌波紋钢简 外简 （7) 由 2.8-3亳米的镀锌钢板压制而成， 截面为折线型、 直线型或波浪 型。
8、 如权利要求 6所述的无张力灌注桩结构， 其特征在于该钢筋混凝土柱 体 A (1 )为 C35-C40标号的混凝土制成的结构； 该素混凝土柱体 B (2) 为 C 10-C15标号的混凝土制成的结构。
9、 如权利要求 6 所述的无张力灌注桩结构， 其特征在于该精轧钢筋 （4 )垂直伸出该钢筋混凝土柱体 A (1 ) 一侧端面 10-15厘米。
10、 如权利要求 6所述的无张力灌注桩结构， 其特征在于该精轧钢筋（4 )为螺紋钢； 该套管 （10)为 PVC材料， 中空， 内直径大于精轧钢筋 （4) 外 径 3-5亳米。
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