SU838035A1

SU838035A1 - Bar-type construction element

Info

Publication number: SU838035A1
Application number: SU792817038A
Authority: SU
Inventors: Виктор Петрович Деев; Вячеслав Константинович Файбишенко; Вячеслав Степанович Гусев
Original assignee: Московский Ордена Трудового Крас-Ного Знамени Архитектурный Ин-Ститут; Производственно-Техническоеобъединение "Мосспецпромпроект"
Priority date: 1979-09-13
Filing date: 1979-09-13
Publication date: 1981-06-15

Description

Изобретение относится к строительству и может быть использовано ¹для несущих каркасов покрытия зданий, например, в виде пространственных стержневых конструкций или для сборно¹ разборных стропильных ферм. ⁵ The invention relates to the construction and can be used ¹ for load-bearing frames covering buildings, for example, in the form of spatial bar structures or for prefabricated ¹ collapsible truss trusses. ⁵

Известен стержневой трубчатый стальной элемент с закладными деталями в виде шайбы с отверстием, сквозь которое проходит крепежная деталь в виде болта с поводковой муфтой и штифтом, при этом головка болта отделена от внутренней полости трубчатого элемента колпаком П1.Known rod tubular steel element with embedded parts in the form of a washer with a hole through which passes the fastener in the form of a bolt with a drive coupling and a pin, while the head of the bolt is separated from the inner cavity of the tubular element by cap P1.

Однако такие Стержневые элементы обладают большим.расходом металла и подвержены снаружи коррозии,поэтому требуются затраты на периодические антикоррозийные покрытия. Кроме того, стальные трубы особенно дефицитны в народном хозяйстве.However, such Rod elements have a large metal consumption and are susceptible to corrosion from the outside, therefore, the cost of periodic anti-corrosion coatings is required. In addition, steel pipes are particularly scarce in the national economy.

Все эти факторы снижают область применения стальных стержневых элементов .All these factors reduce the scope of steel core elements.

Известен также стержневой железобетонный элемент круглого сечения с закладными на концах деталями в виде диска с центральным отверстием, соосным со стержнем, сквозь которое пропущена крепежная деталь в виде болта с поводковой муфтой и штифтом, при этом болт отделен от бетона колпаком, жестко закрепленным к дискуAlso known is a circular reinforced concrete rod element with embedded parts at the ends in the form of a disk with a central hole coaxial with the rod through which a fastener is passed in the form of a bolt with a drive coupling and a pin, while the bolt is separated from concrete by a cap fixed to the disk

Однако такие стержневые элементы имеют более значительный по сравнению с металлическими стержнями вес, что снижает область их применения, например, в пространственных конструкциях типа структур, монтаж которых осуществляется вручную.However, such rod elements have a more significant weight compared to metal rods, which reduces the scope of their application, for example, in spatial structures such as structures, which are installed manually.

Кроме того,- для изготовления таких стержней необходимо значительное, до 28 сут, время, необходимое для затвердения и получения бетона с расчетными характеристиками, что ведет к замедлению строительства.In addition, - for the manufacture of such cores, a significant, up to 28 days, time is required for hardening and obtaining concrete with design characteristics, which leads to a slowdown in construction.

Наиболее близким техническим решением является стержневой строитель з 838035 ный элемент, включающий асбестоцементный стержень с концевыми шайбами с отверстиями, сквозь которые пропущен пруток, поводковую шестигранную муфту и шпильку с отверстиями, и упорные штифты, прохрдящие сквозь отверстия ⁵ The closest technical solution is a rod construction element with 838035 element, including an asbestos-cement rod with end washers with holes through which a bar is passed, a hexagonal drive coupling and a stud with holes, and thrust pins that go through the holes ⁵

в. муфтах и шпильках [3J.in. couplings and studs [3J.

Однако в данном решении, стержневые строительные элементы из асбестоцементных труб, во-первых, выполни- ₁₀ются и преднапрягаются в построечных условиях на монтаже, для чего требуются высококвалифицированные рабочие,а, во-вторых, такие стержневые элементы выполняются только для подкосов про- ₁₅странственной конструкции, а поясные элементы выполняются из стальных швеллеров или уголкоц, что ведет к перерасходу металла, например, на сжатые стержневые элементы пространственной ₂θ конструкции. Поэтому такие стержневые строительные элементы имеют ограниченную область применения и не обеспечивают во всех случаях экономию металла. 25However, in this solution, the stem construction elements of asbestos cement pipes, firstly satisfiable prestressing and ₁₀ are in the built conditions in the installation, which requires highly skilled workers, and, secondly, such rod members are performed only for the pro- struts ₁₅ spatial design, and the waist elements are made of steel channels or angles, which leads to an overexpenditure of metal, for example, on compressed rod elements of a spatial ₂ θ structure. Therefore, such core building elements have a limited scope and do not in all cases save metal. 25

Цель изобретения - экономия металла »The purpose of the invention is the saving of metal "

Указанная цель достигается тем, что стержневой строительный элемент, включающий стержень с концевыми шай- ₃₀бами с отверстиями, сквозь которые пропущен пруток, поводковые шестигранные муфты и шпильки с отверстиями и упорные штифты, пропущенные сквозь отверстия в муфтах и шпильках^ снаб- ₃₅жен на каждом из концов напрягающей резьбовой шестигранной.втулкой и резьбовым наконечником,, выполненном на конце прутка, на который навинчена напрягающая резьбовая шестигран- ₄₀ная втулка, а каждая шпилька выполнена с левой и правой резьбами, левая из которых взаимодействует с резьбой напрагяющей втулки, при этом концевые шайбы имеют отбортованные концы, 45 охватывающие стержень.This goal is achieved by the fact that the core building element, including the core with end washers ₃₀ with holes through which the bar is passed, driving hexagonal couplings and studs with holes and thrust pins, passed through the holes in the couplings and studs, are provided with ₃₅ wives each of the ends of the prestressing shestigrannoy.vtulkoy threaded and the threaded tip ,, performed on the end of the rod on which is screwed a threaded hexagonal straining Nye sleeve _40, and each stud is provided with right and left threads, from left to which interacts with the thread of the bearing sleeve, while the end washers have flanged ends 45 covering the rod.

С целью предотвращения самовывин— чивания, элемент снабжен винтовым фиксатором, а напрягающая втулка имеет отверстие, сквозь которое пропущен винтовой фиксатор, взаимодействующий с резьбовым наконечником.In order to prevent self-screwing, the element is equipped with a screw clamp, and the tension sleeve has a hole through which a screw clamp is passed, which interacts with the threaded tip.

Для защиты прутка от коррозии стержень заполнен бетонной смесью.To protect the rod from corrosion, the rod is filled with concrete mixture.

На фиг. 1 изображен стержневой элемент с местными вырезами, общий виду на фиг. 2 - разрез А—А на фиг. 1; на фиг. 3 - разрез Б-Б на фиг. 1,In FIG. 1 shows a core element with local cutouts, a general view of FIG. 2 — section A — A in FIG. 1; in FIG. 3 - section BB in FIG. 1,

Стержневой строительный элемент состоит из трубы 1 с концевыми шайбами 2, каждая из которых имеет по контуру отбортовку 3 и центральное отверстие 4, сквозь которое пропущен напрягаемый пруток 5.The core building element consists of a pipe 1 with end washers 2, each of which has a flanging 3 along the contour and a central hole 4, through which a prestressed bar 5 is passed.

Пруток 5 имеет резьбовой наконечник 6, на который навинчена напрягающая резьбовая шестигранная втулка 7, имеющая стопорный винт 8. Во втулку 7, в свою очередь, ввинчена шпилька 9, имеющая поводковую муфту 10 и штифт 11, проходящий сквозь круглое отверстие 12 в шпильке 9 и 13 в муфте 10. С целью повышения прочности стержневого элемента внутренняя полость трубы 1 ' заполнена твердующим раствором 14, например цементным или бетонным, нагнетаемым под давлением сквозь отверстие 15 в одной из шайб 2.The rod 5 has a threaded tip 6, on which a tensioning threaded hexagonal sleeve 7 is screwed, having a locking screw 8. In the sleeve 7, in turn, a stud 9 is screwed, having a coupling sleeve 10 and a pin 11 passing through a circular hole 12 in the stud 9 and 13 in the sleeve 10. In order to increase the strength of the core element, the internal cavity of the pipe 1 'is filled with a hardening mortar 14, for example cement or concrete, injected under pressure through an opening 15 in one of the washers 2.

Стержневой элемент выполняют в заводских условиях в следующей последовательности.The core element is performed in the factory in the following sequence.

На асбестоцементную трубу накладывается одна шайба, затем сквозь отверстие в шайбе внутрь трубы заводиться напргяаемый пруток, на конец которого насаживается вплотную к трубе вторая шайба, затем последовательно на наконечники прутка навинчиваются _втулки, обеспечивая натяжение прутка и взаимное обжатие трубы и двух шайб, затем в каждую втулку ввинчивается крепежная деталь в виде шпильки с поводковой муфтой и штифтом.One washer is placed on the asbestos-cement pipe, then a tensioned rod is inserted into the pipe through the hole in the washer, on the end of which a second washer is inserted close to the pipe, then _ bushes are screwed onto the rod tips, ensuring the tension of the rod and mutual compression of the pipe and two washers, then into each a fastener is screwed into the sleeve in the form of a stud with a drive coupling and a pin.

Вместо асбестоцементной трубы с заполнением бетоном можно применить деревянный бру'с составного сечения из двух половин - в этом случае сжимающие усилия воспринимаются.непосредственно брусом.Instead of an asbestos-cement pipe filled with concrete, you can use a wooden beam with a composite section of two halves - in this case, compressive forces are perceived directly by the beam.

Стержневые строительные элементы целесообразно применять в пространственных стержневых конструкциях с узловым элементом, выполненным в виде многогранника с нарезными отверстиями или в стропильных фермах с аналогичными узловыми элементами, при этом твердеющий раствор можно нагнетать внутрь трубы как в заводских так и в построечных условиях в зависимости от максимально допустимого веса стержня.It is advisable to use rod building elements in spatial rod structures with a nodal element made in the form of a polyhedron with threaded holes or in truss trusses with similar nodal elements, while the hardening mortar can be pumped into the pipe both in factory and in construction conditions, depending on the maximum permissible rod weights.

Применение стержневых строительных элементов, например, в пространственных каркасах покрытиязданийможет привести к экономии металла на 4050%, снижению расходов на антикорроThe use of core building elements, for example, in spatial frameworks of building coatings can lead to metal savings of 4050%, lower costs for anti-corrosion

.. 5 эийное покрытие на 35-40% по сравнению с известными решениями... 5 eijnoe coverage of 35-40% compared with known solutions.

Кроме того, за счет заводского выполнения стержневых элементов одновременно возрастет скорость монтажа каркаса покрытия зданий на 15-20% по сравнению с известными решениями.In addition, due to the factory implementation of the core elements, the installation speed of the building cover frame will increase by 15-20% at the same time as compared with the known solutions.

Claims

The invention relates to the construction and can be used for the supporting frameworks of the building covering, for example, in the form of spatial core structures or for collecting collapsible roof trusses. A rod tubular steel element is known with embedded parts in the form of a washer with a hole, through which the fastener passes in the form of a bolt with the guide and pin, while the head of the bolt is separated from the internal cavity of the element with the cap Dl. However, such rod elements have a large metal consumption and are subject to corrosion outside, therefore costs for periodical anti-corrosion coatings are required. In addition, steel pipes are especially scarce in the national economy. All these factors reduce the range of application of steel bar elements. Also known is a rod-shaped reinforced concrete element of circular cross section with parts embedded in the ends in the form of a disk with a central hole coaxial with the rod through which the fastener is passed in the form of a bolt with a drive coupling and pin, while the bolt is separated from the concrete by a cap rigidly fixed to However, such core elements have a greater weight compared to metal rods, which reduces their area of application, for example, in spatial structures such as structures, the assembly of which is carried out mc manually. In addition, for the manufacture of such rods, a considerable, up to 28 days, time required for hardening and obtaining concrete with design characteristics is required, which leads to a delay in construction. The closest technical solution is a core construction element, including an asbestos cement rod with end washers with holes through which a bar is passed, a raised hexagonal clutch and a pin with holes, and thrust pins going through the holes in the bar. clutches and heels fs. However, in this solution, core construction elements made of asbestos-cement pipes, firstly, are completed and prestressed under construction conditions during installation, for which highly skilled workers are required, and secondly, such core elements are made only for spatial struts, and the lateral elements are made of steel channels or angles, which leads to an over-expenditure of metal, for example, to compressed core elements of a spatial structure. Therefore, such core building elements have a limited scope and do not provide metal savings in all cases. The purpose of the invention is to save metal. This goal is achieved by the fact that a rod building element comprising a rod with end shafers with holes through which a bar is passed, powered six-piece couplings and studs with holes and thrust pins passed through the holes in the sleeves and studs is provided at each of the ends a threaded hexagon, a bushing and a threaded tip, made at the end of the rod, onto which a tensioning hexagon wrench is screwed onto the bushing, and each stud is made with left and right threads, the left of which x interacts with the thread of the injector sleeve, while the end washers have flanged ends that cover the 1st rod. In order to prevent self-unscrewing, the element is provided with a screw clamp, and the tension bushing has an opening through which the screw clamp, which interacts with the threaded tip, is passed. The rod is filled with concrete to protect the rod from corrosion. FIG. 1 shows a rod element with local cuts, general view | in fig. 2 is a section A-A in FIG. 1; in fig. 3 shows a section BB in FIG. 1. 5 The core building element consists of a pipe 1 with end washers 2, each of which has a flange 3 along the contour and a central hole 4 through which a tensioned bar is passed 5. The bar 5 has a threaded tip 6 on which a six-way threaded hexagon is screwed a sleeve 7 having a locking screw 8. A pin 9, having a lead coupling 10 and a pin 11 passing through a circular hole 12 in the stud 9 and 13 in the coupling 10, is in turn screwed into the sleeve 7 to increase the strength of the core element and the internal cavity pipes s 1 is filled with a hardening solution 14, for example cement or concrete, which is pressurized through a hole 15 in one of the washers 2. The rod element is made under factory conditions in the following sequence. One washer is applied to the asbestos-cement pipe, then through the hole in the washer into the pipe, winds up with a strained bar, on the end of which a second washer is placed close to the pipe, then the sleeves are screwed onto the rod ends, ensuring the bar and tensioning and mutual compression of the pipe and two washers, then a fastener in the form of a stud with a drive coupling and a pin is screwed into each sleeve. Instead of an asbestos cement pipe filled with concrete, a wooden bar of a composite cross section of two halves can be used — in this case, compressive forces are perceived directly by the bar. Rod building elements are advisable to use in spatial core structures with a nodal element made in the form of a polyhedron with rifled holes or in roof trusses with similar nodal elements, while hardening mortar can be injected into the pipe both in the factory and in the building conditions in depending on the maximum weight of the rod. The use of core building elements, for example, in spatial frames of buildings and buildings, can lead to savings of metal by 4050%, reduction of costs for anti-corrosion coating by 35-40% compared to known solutions. In addition, due to the factory implementation of core elements, the speed of installation of the framework for covering buildings at the same time will increase by 15–20% in comparison with the known solutions. Claim 1. Core construction element comprising a rod with end washers with holes through which a bar is passed, threaded hexagonal couplings and studs with holes and thrust pins passed through holes in sleeves and studs that, in order to save metal , the building element at each of the ends of the string, is abzhen the tension threaded hex socket and the threaded tip, is made at the end of the bar, on which the tension thread 35 of the hex socket is screwed, and lka is made with the left and right reebami. the left of which interacts with the thread of the tension sleeve, while the end washers have flanged ends covering the core. 2. The element according to item I, I distinguish W and and so that; in order to prevent self-unscrewing, the element is provided with a screw clamp, and the tension sleeve has an opening through which the screw clamp, which interacts with the reeb terminal, passes. 3. The element according to p. 1, - d t l and h and and with the fact that, for the purpose of the date bar from corrosion, the rod is filled with concrete mix. Sources of information taken into account in the examination of the USSR Copyright Certificate No. 629296, class .. Е 04 В 1/58, 1977.

2. USSR author's certificate s-676703, cl. E 04. B 1/58, 1978.

3. Copyright s / idedelstvo USSR E629297, cl. E 04 B 1/58, 1977.

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