TWI595141B - Expansion joints for concrete structures - Google Patents
Expansion joints for concrete structures Download PDFInfo
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- TWI595141B TWI595141B TW103116694A TW103116694A TWI595141B TW I595141 B TWI595141 B TW I595141B TW 103116694 A TW103116694 A TW 103116694A TW 103116694 A TW103116694 A TW 103116694A TW I595141 B TWI595141 B TW I595141B
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
- Sewage (AREA)
- Lining And Supports For Tunnels (AREA)
Description
本發明是有關於一種混凝土構造物用伸縮接頭，特別是有關於一種將混凝土構造物間之間隙密閉的混凝土構造物用伸縮接頭。 The present invention relates to an expansion joint for a concrete structure, and more particularly to an expansion joint for a concrete structure in which a gap between concrete structures is sealed.
對以混凝土構築之混凝土構造物的水道或共同管道等之構築於地下的暗渠等之連接部的接縫部會進行內外止水。於此情況，兩側之混凝土構造物不均勻沉陷，或是因地震等之影響，夾著接縫部之兩側的混凝土構造物間之間隔會偏位，然而會採用設置可撓性之伸縮接頭的混凝土構造物用伸縮接頭，以容許該等偏位。有關如此之混凝土構造物用伸縮接頭，例如已知有專利文獻1。 The joint portion of the joint portion of the underground culvert or the like, such as a waterway or a common pipe constructed of concrete, is internally and externally sealed. In this case, the concrete structures on both sides are unevenly subsided, or the spacing between the concrete structures on both sides of the joint portion may be offset due to the influence of earthquakes, etc. The concrete structure of the joint is provided with an expansion joint to allow the offset. Patent Document 1 is known, for example, for such an expansion joint for a concrete structure.
【先行技術文獻】 [First technical literature]
【專利文獻】 [Patent Literature]
【專利文獻1】日本特開2010-150807號公報 [Patent Document 1] Japanese Patent Laid-Open Publication No. 2010-150807
但是，例如在專利文獻1中，一度以錨定螺栓螺帽在橫跨目的部之可撓構件的兩側壓附固定於混凝土構造物後，即使因衝擊等而鬆弛，也由於不能再壓附可撓構件，而有無法重新固定錨定螺栓螺帽的問題。 However, for example, in Patent Document 1, once the anchor bolt nut is pressed and fixed to the concrete structure on both sides of the flexible member across the target portion, even if it is loosened by impact or the like, it cannot be embossed again. The member is flexible and there is a problem that the anchor bolt nut cannot be re-fixed.
又，在習知之混凝土構造物用伸縮接頭中，從可撓構件的內側施加高內壓的情況，有所謂可撓構件對混凝土構造物的面密封性變弱的問題。 Further, in the conventional expansion joint for a concrete structure, when a high internal pressure is applied from the inside of the flexible member, there is a problem that the surface sealing property of the concrete member to the concrete structure is weak.
因此，本案發明可解決上述習知技術所具有的問題，提供一種對混凝土構造物可有效地繫緊可撓性材的伸縮部，且密封性高的混凝土構造物用伸縮接頭。 Therefore, the present invention can solve the problems of the above-described conventional techniques, and provides an expansion joint for a concrete structure which can effectively fasten a stretchable portion of a flexible material to a concrete structure and has high sealing property.
為了解決上述課題，本發明之混凝土構造物用伸縮接頭，包含有：可撓性材之伸縮部，跨越混凝土構造物間之接縫部而配設，且在兩側具有壓附到前述混凝土構造物之按壓部；抵接部，橫跨長度方向被覆在前述按壓部，且斷面為字形；及複數個固定單元，用以於前述抵接部之長度方向隔著間隔在複數處將被覆於前述按壓部之前述抵接部壓附並固定於前述混凝土構造物，前述固定單元具有：抵壓部，具有從位在前述接縫部側之內側角部朝下方彎折的短腳、及從位在前述接縫部之相反側的外側角部朝下方彎折的長腳，並且前述長腳接觸於前述混凝土構造物之斷面變形字形且被覆於前述抵接部；及錨定螺栓螺帽，用以在使前述抵壓部被覆於被覆在前述按壓部的前述抵接 部的狀態下，將前述抵壓部按壓並安裝在前述混凝土構造物而將前述按壓部壓附在前述混凝土構造物且由螺栓和螺帽所構成，被覆於前述按壓部之前述抵接部於斷面視中相對前述螺栓位於前述接縫部側。 In order to solve the above problems, the expansion joint for a concrete structure according to the present invention includes a stretchable portion of a flexible material, which is disposed across a joint portion between the concrete structures, and is press-fitted to the concrete structure on both sides. a pressing portion of the object; the abutting portion is covered in the pressing portion across the longitudinal direction, and the cross section is And a plurality of fixing units for pressing and fixing the abutting portion covered by the pressing portion to the concrete structure at a plurality of locations in a longitudinal direction of the abutting portion, wherein the fixing unit has: The pressing portion has a short leg that is bent downward from an inner corner portion on the seam portion side, and a long leg that is bent downward from an outer corner portion that is located on the opposite side of the seam portion, and the aforementioned Long foot contact with the section deformation of the aforementioned concrete structure And abutting the bolt portion, and the anchor bolt nut is configured to press and attach the pressing portion to the abutting portion of the pressing portion when the pressing portion is covered In the concrete structure, the pressing portion is pressed against the concrete structure and is composed of a bolt and a nut, and the abutting portion that is covered by the pressing portion is located on the side of the joint portion with respect to the bolt in a cross-sectional view.
又，是以前述伸縮部在兩側之前述按壓部間具有波狀單元反覆的波狀部，最鄰接前述按壓部之前述波狀單元是從前述按壓部之內側下部沿著前述混凝土構造物面延伸後呈波狀豎立為特徵。 Further, the stretchable portion has a wavy portion that overlaps between the pressing portions on both sides, and the wavy unit that is most adjacent to the pressing portion is from the inner lower portion of the pressing portion along the concrete structure surface It is characterized by a wavy erection after extension.
又，是以形成有從前述按壓部之下表面突出之突起為特徵。 Further, it is characterized in that a projection projecting from the lower surface of the pressing portion is formed.
又，是以於前述伸縮部的上側被覆有外罩橡膠，前述外罩橡膠的端部捲繞於前述按壓部與前述抵接部之間為特徵。 Further, the upper side of the elasticized portion is covered with a cover rubber, and an end portion of the outer cover rubber is wound between the pressing portion and the abutting portion.
又，是以前述抵壓部是切斷一片鋼材板的四個角部，將兩側部朝下方彎折作為前述短腳和前述長腳，並將前後部朝上方彎曲者為特徵。 Further, the pressing portion is characterized in that four corner portions of one steel plate are cut, and both side portions are bent downward as the short legs and the long legs, and the front and rear portions are bent upward.
依據本發明之構成，由於被覆於按壓部之抵接部於斷面視中相對螺栓位於接縫部側，長腳之下端部作為支點作用，所以可將錨定螺栓螺帽所產生之繫緊力有效地作用於按壓部。 According to the configuration of the present invention, since the abutting portion covered by the pressing portion is located on the side of the joint portion with respect to the bolt in the cross-sectional view, the lower end portion of the long leg functions as a fulcrum, so that the anchor bolt nut can be fastened. The force acts effectively on the pressing portion.
又，由於可僅將按壓部壓附在混凝土構造物，所以可易於進行再繫緊。 Moreover, since the pressing portion can be pressed only to the concrete structure, re-fastening can be easily performed.
又，由於伸縮部受內壓時，按壓部藉由受力，朝 接縫部側壓縮變形，而被力拉向接縫部側，所以可發揮自動密封性。 Moreover, when the telescopic portion is subjected to internal pressure, the pressing portion is biased toward Since the seam portion side is compressed and deformed and pulled to the seam portion side by force, the automatic sealing property can be exhibited.
圖1是顯示本發明之混凝上構造物用伸縮接頭之一實施形態的斷面圖。 Fig. 1 is a cross-sectional view showing an embodiment of an expansion joint for a structure for a concrete structure according to the present invention.
圖2是顯示從目的部朝伸縮部之內側未作用高內壓的通常狀態的圖示。 Fig. 2 is a view showing a normal state in which a high internal pressure is not applied from the target portion toward the inner side of the expansion and contraction portion.
圖3是從目的部朝伸縮部之內側作用高內壓的狀態的圖示。 Fig. 3 is a view showing a state in which a high internal pressure is applied from the target portion toward the inside of the expansion and contraction portion.
圖4是顯示混凝土構造用伸縮接頭的俯視圖。 4 is a plan view showing an expansion joint for concrete structure.
圖5是對應圖4之端面圖。 Figure 5 is an end view corresponding to Figure 4.
圖6是顯示由一片鋼材板所製造之抵壓部的圖示，(a)是顯示組裝前者，(b)是顯示組裝後者。 Fig. 6 is a view showing a pressing portion made of a steel plate, (a) showing the former and (b) showing the latter.
圖1是顯示本發明之混凝土構造物用伸縮接頭之一實施形態的斷面圖。圖1中，混凝土構造物用伸縮接頭1是跨在混凝土構造物2間之接縫部3配設，並包含有於兩側具有壓附在混凝土構造物2的按壓部4之可撓性材的伸縮部5、橫跨長度方向被覆在按壓部4之斷面字形的抵接部6，及複數用以於抵接部6之長度方向隔著間隔在複數處將被覆在按壓部4之抵接部6按壓固定到混凝土構造物4的固定 單元10。 Fig. 1 is a cross-sectional view showing an embodiment of an expansion joint for a concrete structure according to the present invention. In FIG. 1, the expansion joint 1 for a concrete structure is disposed across the joint portion 3 between the concrete structures 2, and includes a flexible material having press portions 4 pressed against the concrete structure 2 on both sides. The expansion and contraction portion 5 is covered in the longitudinal direction across the section of the pressing portion 4 The abutting portion 6 of the zigzag shape and the plurality of fixing means 10 for pressing and fixing the abutting portion 6 of the pressing portion 4 to the concrete structure 4 at a plurality of places in the longitudinal direction of the abutting portion 6 are interposed.
固定單元10包含具有從位於接縫部3側之內側角部11a朝下方彎折的短腳11b及從位於接縫部3之相反側的外側角部11c朝下方彎折的長腳11d，並且為長腳11d接觸於混凝土構造物2之斷面變形字形且被覆於抵接部6的抵壓部11、及用以在使抵壓部11被覆在被覆於按壓部4之抵接部6的狀態下將抵壓部11按壓並安裝於混凝土構造物2，以將按壓部4壓附於混凝土構造物2且由螺栓12與螺帽13所構成之錨定螺栓螺帽14。 The fixing unit 10 includes a short leg 11b that is bent downward from the inner corner portion 11a on the side of the seam portion 3, and a long leg 11d that is bent downward from the outer corner portion 11c on the opposite side of the seam portion 3, and Sectional deformation of the long structure 11d in contact with the concrete structure 2 The pressing portion 11 that is shaped to cover the abutting portion 6 and the pressing portion 11 are pressed and attached to the concrete structure in a state where the pressing portion 11 is covered by the abutting portion 6 of the pressing portion 4 2, an anchor bolt nut 14 which is formed by pressing the pressing portion 4 to the concrete structure 2 and composed of the bolt 12 and the nut 13.
被覆於按壓部4之抵接部6於斷面視中相對螺栓12是位於接縫部3側。亦即，於圖1中，右側之抵接部6相對於右側之螺栓12是位於接縫部3側，左邊的抵接部6相對於左側的螺栓12是位於接縫部3側。 The abutting portion 6 covered by the pressing portion 4 is located on the side of the seam portion 3 with respect to the bolt 12 in the cross-sectional view. That is, in Fig. 1, the abutting portion 6 on the right side is located on the side of the joint portion 3 with respect to the bolt 12 on the right side, and the abutting portion 6 on the left side is located on the side of the joint portion 3 with respect to the bolt 12 on the left side.
伸縮部在兩側之按壓部4間具有波狀單元反覆的波狀部16，最鄰接於按壓部4之波狀單元17具有從按壓部4之內側下部4a沿著混凝土構造物之面2a延伸後豎立成波狀之豎立部17a。 The expansion/contraction portion has a corrugated portion 16 whose wavy unit overlaps between the pressing portions 4 on both sides, and the wavy unit 17 that is most adjacent to the pressing portion 4 has an extension from the inner lower portion 4a of the pressing portion 4 along the surface 2a of the concrete structure. The erected portion 17a is erected rearward.
在按壓部4的下表面形成突出之突起4a。按壓部4藉由壓附於混凝土構造物2的面2a而使突起4a壓縮變形，使密封性變得更確實。 A protruding protrusion 4a is formed on the lower surface of the pressing portion 4. The pressing portion 4 is pressed and deformed by the surface 2a of the concrete structure 2, and the sealing property is further confirmed.
在伸縮部5的上側被覆外罩橡膠19，外罩橡膠19的端部19a捲繞於按壓部4與抵接部6之間。 The outer cover rubber 19 is covered on the upper side of the elasticized portion 5, and the end portion 19a of the outer cover rubber 19 is wound between the pressing portion 4 and the abutting portion 6.
伸縮部5由可止水的橡膠材構成，在垂直於圖1的紙面的方向形成長條形。按壓部4是斷面大致為四方體 且形成塊狀。斷面字形的抵接部6由金屬材構成，在垂直於圖1之紙面的方向形成長條形，將單位長度的單元連續地連結。 The elasticized portion 5 is made of a water-repellent rubber material, and is formed in an elongated shape in a direction perpendicular to the paper surface of Fig. 1 . The pressing portion 4 has a substantially quadrangular cross section and is formed in a block shape. Section The abutting portion 6 of the glyph is made of a metal material, and is formed in an elongated shape in a direction perpendicular to the paper surface of Fig. 1, and the unit of unit length is continuously connected.
如圖1所示，抵接部6從上方被覆放置於按壓部4的上半部而配設。抵壓部11的短腳11b具有不越過抵接部6的內側腳部6a而朝下方伸出的長度。最鄰接按壓部4的波狀單元17的豎立部17a從按壓部4的內側下部4a延伸，而從混凝土構造物的面2a與抵接部6的腳部6a的端部之間朝接縫部3側豎立。 As shown in FIG. 1 , the abutting portion 6 is placed on the upper half of the pressing portion 4 from above and disposed. The short leg 11b of the pressing portion 11 has a length that does not protrude beyond the inner leg portion 6a of the abutting portion 6 and protrudes downward. The upright portion 17a of the wavy unit 17 that is most adjacent to the pressing portion 4 extends from the inner lower portion 4a of the pressing portion 4, and from the surface 2a of the concrete structure to the end portion of the leg portion 6a of the abutting portion 6 toward the seam portion 3 sides are erected.
螺栓12打入混凝土構造物2，螺帽13透過置於抵壓部11上的墊圈18而從螺栓12的頂部側繫緊於螺栓12。 The bolt 12 is driven into the concrete structure 2, and the nut 13 is fastened to the bolt 12 from the top side of the bolt 12 through the washer 18 placed on the pressing portion 11.
圖4是顯示混凝土構造物用伸縮接頭1的俯視圖，圖5是對應圖4之端面圖。如圖4所示，複數個固定單元10隔著間隔配設於抵接部6的長度方向，將被覆於按壓部4的抵接部6藉由錨定螺栓螺帽14而壓附並固定到混凝土構造物4。 4 is a plan view showing an expansion joint 1 for a concrete structure, and FIG. 5 is an end view corresponding to FIG. 4. As shown in FIG. 4, a plurality of fixing units 10 are disposed at intervals in the longitudinal direction of the abutting portion 6, and the abutting portion 6 covered by the pressing portion 4 is pressed and fixed by the anchor bolt nut 14 to Concrete structure 4.
其次，參照圖6就有關由一片鋼材板簡易地所製造的抵壓部11進行說明。圖6(a)是顯示由一片鋼材板切斷4個角落之組裝前的抵壓部11。圖6(b)是顯示組裝後的抵壓部11。抵壓部11包含有從內側角部11a朝下方彎折的短腳11b、從外側角部11c朝下方彎折的長腳11d、在前側與後側朝上方彎折之同等高度的起立部11e、11f、中央部之基部11g、及形成於基部11g之錨定螺栓螺帽14用之穴部11h。 Next, a pressing portion 11 which is easily manufactured from a single steel plate will be described with reference to Fig. 6 . Fig. 6(a) is a view showing a pressing portion 11 before assembly in which four corners are cut by a single steel plate. Fig. 6(b) shows the pressing portion 11 after assembly. The pressing portion 11 includes a short leg 11b that is bent downward from the inner corner portion 11a, a long leg 11d that is bent downward from the outer corner portion 11c, and a rising portion 11e that is bent upward at the front side and the rear side. 11f, a base portion 11g at the center portion, and a hole portion 11h formed in the anchor bolt nut 14 of the base portion 11g.
由於抵壓部11是以一片鋼材板作為材料，所以 可簡易且價格便宜地製造。 Since the pressing portion 11 is made of a steel plate, It can be manufactured easily and inexpensively.
又，於抵壓部11，左右相對向之短腳11b與長腳11d朝向下方，且前後相對向之起立部11e、11f朝向上方，所以具有高的耐扭性，儘管是由一片鋼板材簡易地製造，但是具有高強度。 Further, in the pressing portion 11, the right and left legs 11b and the long legs 11d face downward, and the front and rear opposing portions 11e and 11f face upward, so that the torsion resistance is high, although it is simple by one steel plate. Made in place, but with high strength.
接著，於本實施形態之混凝土構造物用伸縮接頭1中，就有關使用錨定螺栓螺帽14可極有效地將伸縮部5之按壓部4壓抵於混凝土構造物2進行說明。 Next, in the expansion joint 1 for a concrete structure according to the present embodiment, the use of the anchor bolt nut 14 can extremely effectively press the pressing portion 4 of the elasticized portion 5 against the concrete structure 2.
如前述，被覆在按壓部4之抵接部6在斷面視中相對螺栓12是位在接縫部3側。又，僅抵壓部11之長腳11d接觸於混凝土構造物2，短腳11b不接觸於混凝土構造物2。又，抵接部6之下端部也不接觸於混凝土構造物2。結果，利用螺帽13繫緊錨定螺栓螺帽14之螺栓12以壓附抵壓部11時，長腳11d之下端部作為支點作用，由於被覆於按壓部4之抵接部6相對螺栓12位於接縫部3側，所以附加於錨定螺栓螺帽14的力量所產生之扭矩被放大，可有效地壓附相對螺栓12位於接縫部3側之按壓部4。 As described above, the abutting portion 6 that is covered by the pressing portion 4 is positioned on the seam portion 3 side with respect to the bolt 12 in the cross-sectional view. Further, only the long leg 11d of the pressing portion 11 is in contact with the concrete structure 2, and the short leg 11b is not in contact with the concrete structure 2. Further, the lower end portion of the abutting portion 6 does not come into contact with the concrete structure 2. As a result, when the bolt 13 of the anchor bolt nut 14 is fastened by the nut 13 to press the pressing portion 11, the lower end portion of the long leg 11d acts as a fulcrum, and the abutment portion 6 which is covered by the pressing portion 4 is opposed to the bolt 12 Since it is located on the side of the joint portion 3, the torque generated by the force attached to the anchor bolt nut 14 is enlarged, and the pressing portion 4 on the side of the joint portion 3 with respect to the bolt 12 can be effectively pressed.
又，利用螺帽13繫緊螺栓12的情況，僅按壓部4壓附於混凝土構造物2，抵接部6之下端部等不壓附於混凝土構造物2。結果，以錨定螺栓螺帽14將按壓部4固定於混凝土構造物2後，即使因衝擊等而使繫緊鬆弛，也可利用螺帽13進一步將螺栓12繫緊，以將錨定螺栓螺帽14再繫緊。 Moreover, when the bolt 13 is fastened by the nut 13, only the pressing portion 4 is pressed against the concrete structure 2, and the lower end portion of the abutting portion 6 or the like is not pressed against the concrete structure 2. As a result, after the pressing portion 4 is fixed to the concrete structure 2 by the anchor bolt nut 14, even if the tie is loosened by an impact or the like, the bolt 12 can be further tightened by the nut 13 to screw the anchor bolt. The cap 14 is fastened again.
接著，就有關本實施形態之混凝土構造物用伸 縮接頭1中，即使在從接縫部3朝伸縮部5之內側施加高內壓的情況，也可有效地發揮自動密封性來進行說明。 Next, the concrete structure for the present embodiment is stretched. In the constricted joint 1, even when a high internal pressure is applied from the joint portion 3 to the inner side of the elasticized portion 5, the automatic sealing performance can be effectively exhibited.
圖2顯示通常時的狀態，圖3顯示從接縫部3朝伸縮部5之內側作用高內壓的狀態。圖2中，壓力P1藉由錨定螺栓螺帽14之作用而作用於按壓部11，按壓部11以壓力P2壓附於混凝土構造物2的面。 FIG. 2 shows a state in a normal state, and FIG. 3 shows a state in which a high internal pressure is applied from the joint portion 3 toward the inside of the expansion and contraction portion 5. In FIG. 2, the pressure P1 acts on the pressing portion 11 by the action of the anchor bolt nut 14, and the pressing portion 11 is pressed against the surface of the concrete structure 2 at a pressure P2.
如前述，最鄰接於按壓部4之波狀單元17具有從按壓部4之內側下部4a沿著混凝土構造物的面2a延伸之後豎立成波狀之豎立部17a，豎立部17a從按壓部4之內側下部4a延伸，自混凝土構造物的面2a和抵接部6之內側腳部6a的端部之間朝接縫部3側豎立。結果，如圖3所示，高內壓從接縫部3朝伸縮部5之內側作用時，豎立部17a受到內壓以豎立更高，按壓部4受力而被力拉向接縫部3側。由於按壓部4其上半部收藏於抵接部6而無法朝上下方向變形，所以按壓部4藉由受力朝接縫部3側壓縮變形，而被拉向接縫部3側。抵接部6之外側腳部6b及外罩橡膠19的端部19a和按壓部11的外側端部之間產生間隙4c。按壓部4朝接縫部3側壓縮變形所產生的結果，按壓部4如圖3以符號P3所示般產生朝向內側下方的彈性力，壓力P2相較圖2的情況增大。藉由壓力P2增大，按壓部4被更強力壓附於混凝土構造物的面2a，而可發揮自動密封性。 As described above, the wavy unit 17 that is most adjacent to the pressing portion 4 has an upright portion 17a that is erected in a wave shape after extending from the inner lower portion 4a of the pressing portion 4 along the surface 2a of the concrete structure, and the standing portion 17a is from the pressing portion 4 The inner lower portion 4a extends from the surface 2a of the concrete structure and the end portion of the inner leg portion 6a of the abutting portion 6 to the seam portion 3 side. As a result, as shown in FIG. 3, when the high internal pressure acts from the joint portion 3 toward the inside of the expansion-contraction portion 5, the standing portion 17a receives the internal pressure to be erected higher, and the pressing portion 4 is forced to be pulled toward the seam portion 3 by the force. side. Since the upper half of the pressing portion 4 is stored in the abutting portion 6 and cannot be deformed in the vertical direction, the pressing portion 4 is compressed and deformed toward the seam portion 3 side, and is pulled toward the seam portion 3 side. A gap 4c is formed between the outer leg portion 6b of the abutting portion 6 and the end portion 19a of the outer cover rubber 19 and the outer end portion of the pressing portion 11. As a result of the compression deformation of the pressing portion 4 toward the seam portion 3 side, the pressing portion 4 generates an elastic force directed downward inward as indicated by a symbol P3 in FIG. 3, and the pressure P2 is increased as compared with the case of FIG. When the pressure P2 is increased, the pressing portion 4 is more strongly pressed against the surface 2a of the concrete structure, and the automatic sealing property can be exhibited.
如上述般，依據本實施形態之混凝土構造物用伸縮接頭1之構成，長腳11d之下端部作為支點作用，由於按壓部11相對螺栓12位於接縫部3側，所以可有效地將錨 定螺栓螺帽14所產生之繫緊力作用於按壓部4。 As described above, according to the configuration of the expansion joint 1 for a concrete structure according to the present embodiment, the lower end portion of the long leg 11d functions as a fulcrum, and since the pressing portion 11 is located on the side of the joint portion 3 with respect to the bolt 12, the anchor can be effectively anchored. The fastening force generated by the fixed bolt nut 14 acts on the pressing portion 4.
又，由於僅將按壓部11壓附於混凝土構造物2，所以可易於進行再繫緊。 Moreover, since only the pressing portion 11 is pressed against the concrete structure 2, re-fastening can be easily performed.
又，在伸縮部5受到內壓時，按壓部4藉由受力而朝接縫部3側壓縮變形，被力朝接縫部3側拉引，所以可發揮自動密封性。 Further, when the elastic portion 5 is subjected to the internal pressure, the pressing portion 4 is compressed and deformed toward the seam portion 3 by the force, and is pulled by the force toward the seam portion 3, so that the automatic sealing property can be exhibited.
1‧‧‧混凝土構造物用伸縮接頭 1‧‧‧Expansion joints for concrete structures
2‧‧‧混凝土構造物 2‧‧‧Concrete structures
2a‧‧‧面 2a‧‧‧ face
3‧‧‧接縫部 3‧‧‧Seam
4‧‧‧按壓部 4‧‧‧ Pressing Department
4a‧‧‧內側下部 4a‧‧‧lower inner part
4b‧‧‧突起 4b‧‧‧ Protrusion
4c‧‧‧間隙 4c‧‧‧ gap
5‧‧‧伸縮部 5‧‧‧Flexing Department
6‧‧‧抵接部 6‧‧‧Apartment
6a‧‧‧內側腳部 6a‧‧‧inside foot
6b‧‧‧外側腳部 6b‧‧‧Outer foot
10‧‧‧固定單元 10‧‧‧Fixed unit
11‧‧‧抵壓部 11‧‧‧Resistance Department
11a‧‧‧內側角部 11a‧‧‧ inside corner
11b‧‧‧短腳 11b‧‧‧ short legs
11c‧‧‧外側角部 11c‧‧‧outer corner
11d‧‧‧長腳 11d‧‧‧Long feet
11e‧‧‧起立部 11e‧‧‧立立部
11f‧‧‧起立部 11f‧‧‧立立部
11g‧‧‧基部 11g‧‧‧ base
11h‧‧‧穴部 11h‧‧‧ points
12‧‧‧螺栓 12‧‧‧ bolt
13‧‧‧螺帽 13‧‧‧ Nuts
14‧‧‧錨定螺栓螺帽 14‧‧‧ Anchor bolt nut
16‧‧‧波狀部 16‧‧‧ wavy
17‧‧‧波狀單元 17‧‧‧Wave unit
17a‧‧‧豎立部 17a‧‧‧ erection
18‧‧‧墊圈 18‧‧‧ Washer
19‧‧‧外罩橡膠 19‧‧‧Sheath rubber
19a‧‧‧端部 19a‧‧‧End
P1~P2‧‧‧壓力 P1~P2‧‧‧ pressure
P3‧‧‧彈性力 P3‧‧‧Flexibility
圖1是顯示本發明之混凝土構造物用伸縮接頭之一實施形態的斷面圖。 Fig. 1 is a cross-sectional view showing an embodiment of an expansion joint for a concrete structure according to the present invention.
圖2是顯示從目的部朝伸縮部之內側未作用高內壓的通常狀態的圖示。 Fig. 2 is a view showing a normal state in which a high internal pressure is not applied from the target portion toward the inner side of the expansion and contraction portion.
圖3是從目的部朝伸縮部之內側作用高內壓的狀態的圖示。 Fig. 3 is a view showing a state in which a high internal pressure is applied from the target portion toward the inside of the expansion and contraction portion.
圖4是顯示混凝土構造用伸縮接頭的俯視圖。 4 is a plan view showing an expansion joint for concrete structure.
圖5是對應圖4之端面圖。 Figure 5 is an end view corresponding to Figure 4.
圖6是顯示由一片鋼材板所製造之抵壓部的圖示，(a)是顯示組裝前者，(b)是顯示組裝後者。 Fig. 6 is a view showing a pressing portion made of a steel plate, (a) showing the former and (b) showing the latter.
1‧‧‧混凝土構造物用伸縮接頭 1‧‧‧Expansion joints for concrete structures
2‧‧‧混凝土構造物 2‧‧‧Concrete structures
2a‧‧‧面 2a‧‧‧ face
3‧‧‧接縫部 3‧‧‧Seam
4‧‧‧按壓部 4‧‧‧ Pressing Department
4a‧‧‧內側下部 4a‧‧‧lower inner part
4b‧‧‧突起 4b‧‧‧ Protrusion
5‧‧‧伸縮部 5‧‧‧Flexing Department
6‧‧‧抵接部 6‧‧‧Apartment
10‧‧‧固定單元 10‧‧‧Fixed unit
11‧‧‧抵壓部 11‧‧‧Resistance Department
11a‧‧‧內側角部 11a‧‧‧ inside corner
11b‧‧‧短腳 11b‧‧‧ short legs
11c‧‧‧外側角部 11c‧‧‧outer corner
11d‧‧‧長腳 11d‧‧‧Long feet
11e‧‧‧起立部 11e‧‧‧立立部
12‧‧‧螺栓 12‧‧‧ bolt
13‧‧‧螺帽 13‧‧‧ Nuts
14‧‧‧錨定螺栓螺帽 14‧‧‧ Anchor bolt nut
16‧‧‧波狀部 16‧‧‧ wavy
17‧‧‧波狀單元 17‧‧‧Wave unit
17a‧‧‧豎立部 17a‧‧‧ erection
18‧‧‧墊圈 18‧‧‧ Washer
19‧‧‧外罩橡膠 19‧‧‧Sheath rubber
19a‧‧‧端部 19a‧‧‧End
Claims (5)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013117445A JP6054253B2 (en) | 2013-06-04 | 2013-06-04 | Expansion joints for concrete structures |
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| TW201510328A TW201510328A (en) | 2015-03-16 |
| TWI595141B true TWI595141B (en) | 2017-08-11 |
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| TW103116694A TWI595141B (en) | 2013-06-04 | 2014-05-12 | Expansion joints for concrete structures |
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|---|---|
| JP (1) | JP6054253B2 (en) |
| KR (1) | KR102159841B1 (en) |
| CN (1) | CN104213539B (en) |
| TW (1) | TWI595141B (en) |
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| JP6644601B2 (en) * | 2016-03-28 | 2020-02-12 | 西武ポリマ化成株式会社 | Fixing member for flexible water blocking member |
| CN118326766A (en) * | 2024-04-03 | 2024-07-12 | 山东岱天工程材料有限公司 | Roadbed water stop copper sheet protective structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW247331B (en) * | 1993-06-02 | 1995-05-11 | Raswill Represen Tative Pte Ltd | |
| TW272245B (en) * | 1994-12-12 | 1996-03-11 | Seibu Polymer Kasei Kk | Make a construction of a joint for underground channel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5567299U (en) * | 1979-11-19 | 1980-05-09 | ||
| JPH0726411B2 (en) * | 1989-01-30 | 1995-03-22 | 等 前山 | Construction method of concrete using waterproof frame |
| JP2693638B2 (en) * | 1990-11-19 | 1997-12-24 | 西武ポリマ化成株式会社 | Box culvert |
| JP2721472B2 (en) * | 1993-06-25 | 1998-03-04 | 早川ゴム株式会社 | Concrete structure joint structure |
| JP3045990B2 (en) * | 1997-12-01 | 2000-05-29 | 西武ポリマ化成株式会社 | Expansion joints for concrete structures |
| JP2002021166A (en) * | 2000-07-11 | 2002-01-23 | Sumitomo Rubber Ind Ltd | Fitting method for flexible joint |
| CN100507165C (en) * | 2005-08-05 | 2009-07-01 | 上海市隧道工程轨道交通设计研究院 | Inner sticker installation method of waterstop |
| JP4970133B2 (en) * | 2007-05-10 | 2012-07-04 | 西武ポリマ化成株式会社 | Flexible water stop structure |
| JP5143539B2 (en) * | 2007-12-14 | 2013-02-13 | 日本ヴィクトリック株式会社 | Joint water stop flexible joint |
| JP5183456B2 (en) * | 2008-12-25 | 2013-04-17 | 西武ポリマ化成株式会社 | Fixing structure of expansion joint for concrete structure, fixing method thereof and fixing member thereof |
| JP2013079543A (en) * | 2011-10-05 | 2013-05-02 | Sumitomo Rubber Ind Ltd | Cutoff rubber |
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2013
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- 2014-05-12 TW TW103116694A patent/TWI595141B/en active
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW247331B (en) * | 1993-06-02 | 1995-05-11 | Raswill Represen Tative Pte Ltd | |
| TW272245B (en) * | 1994-12-12 | 1996-03-11 | Seibu Polymer Kasei Kk | Make a construction of a joint for underground channel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014234652A (en) | 2014-12-15 |
| JP6054253B2 (en) | 2016-12-27 |
| KR20140142666A (en) | 2014-12-12 |
| TW201510328A (en) | 2015-03-16 |
| KR102159841B1 (en) | 2020-09-24 |
| CN104213539B (en) | 2017-08-29 |
| CN104213539A (en) | 2014-12-17 |
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