True an earthquake on the ocean floor can produce a tsunami. The veneer joints match perfectly to create symmetry of pattern and continuity of the grain. Ninth workshop on nonlinear dynamics and earthquake. A technique for matching wood veneer veneer book matching is the most frequently used method for matching wood veneer.
Using repeating earthquakes to correct highprecision. Jun 24, 2014 we have investigated spatiotemporal variation in small repeating earthquake activity in the 1989 earthquake swarm and used them to infer quasistatic slip distribution on the plate boundary off sanriku, northern honshu, japan. The performance of bridges during and after earthquake events is critical in ensuring that road networks remain operational and importantly provide access for emergency services. About 95% of all earthquakes occur along plate boundaries, outlined by the narrow zones of seismicity that are visible in the global earthquake map figure 3. Please select the word from the list that best fits the.
Ninth workshop on nonlinear dynamics and earthquake predictions. Every other piece of veneer is turned over so adjacent pieces are opened like two adjacent pages in a book. Building code requirements for brick veneer have changed over the years. Architectural woodwork standards, 2nd edition woodwork institute. A wood frame house could probably be repaired after most earthquakes.
Ninth workshop on nonlinear dynamics and earthquake predictions v. It happens when the crust beneath the earths surface shifts and tears. Defying the skeptics, however, a small cadre of researchers have held onto the faith that, with the right detectors and computational tools, it will be possible to predict earthquakes with the same precision and confidence we do just about any other extreme natural event, including floods, hurricanes, and tornadoes. Before undertaking a seismic rehabilitation, objectives that define the level of. Vmhs earthquake study guide science flashcards quizlet. Veneer pattern produced by turning over every other veneer strip. It has been suggested that comets born near jupiter may have contained the water that eventually formed earths oceans credit. Volcanoes form where plates collide along a subduction zone. Veneer slices are joined in sequence without flipping the pattern. Veneer matching custom veneer and production plywood panels.
Once cut, veneer leaves are selected and matched as required. Panel matching is then required to define how the completed veneer face is positioned. Background information, bibliography, and acknowledgements. Are caused by the shaking or trembling caused by the sudden release of energy usually associated with faulting or breaking of rocks cracking of the plates also called faults.
Although earthquakes occur all over the world, they are not uniformly distributed. Reducing the risks of nonstructural earthquake damage. Branz tests performance of brick veneer and mortar. Strong earthquakes occur independently of each other, while minor shocks cluster together. This produces a grain pattern that is matched at the veneer joint. Branz tests performance of brick veneer and mortar strength. The second is a ground motion prediction equation gmpe, i. The long time period between earthquakes allows a great deal of potential energy to build up. A study was conducted on the outofplane seismic performance of anchored brick veneer with woodframe backup wall systems, to evaluate prescriptive design requirements and current construction practices. Synthetic accelerograms due to moderate strong earthquakes. This chapter outlines the earthquake risk to schools and the pro cesses and. In the canterbury earthquakes brick veneer failures occurred due to lack of bond between the brick and the mortar because the mortar that had been applied was too dry. Bibliography of earthquake hazards in arizona by scott beyer and philip a.
Please select the word from the list that best fits the definition which scale of measurement measures the magnitude or strength of an earthquake based on seismic waves. Bookmatched refers to how the slabs are cut and polished at the factory. The most commonly used match in the industry is where every other leaf of veneer is turned over, like the pages of a book. Matched, book the most commonly used match in the industry. Continuous pieces of veneer peeled from a log using a rotary process. There are three matching processes to consider when using veneer. Walls might crack, because they are covered with inflexible plaster or wall board, but the fram will stand through a fairly strong quake.
It is accomplished by turning every other veneer leaf over, and arranging it such that the grain opens at the spine, similar to the pages in a book. Brick veneer and mortar strength in earthquakes building. I n late winter of 1975, a seismologist named cao xianqing tracked a series of small earthquakes near haicheng, china, which he took to presage a much larger one to come. Historic buildings are especially vulnerable to seismic events, particularly those built. Prominent characteristics will flow across the match. Veneer freestanding waus or fences exterior signs furniture and contents. Using repeating earthquakes to correct highprecision earthquake catalogs for timedependent station delays article in bulletin of the seismological. Glossary of common veneer terms formwood industries. On the morning of february 3, officials ordered evacuations of the surrounding communities. The gradual change of grain through the log gives veneers their special quality of subtle variations. Reliability of woodframe residential construction subjected. A single story wood frame building will flex in an earthquake without breaking the frame. Seismicity and inferred quasistatic slip accelerations propagated to the west and to the south during the swarm activity to trigger the.
Find all the books, read about the author, and more. Langer institute for theoretical physics, university of california, santa barbara. The consecutive veneer leaves are opened, like a book, creating a mirror image of the previous leaf as theyre spliced together. Continuing adjustment of position results in aftershocks unstable earth the earths crust is subjected to huge forces very large forces can fracture the rock this.
Dec 20, 2006 a single story wood frame building will flex in an earthquake without breaking the frame. It has been suggested that comets born near jupiter may. In turn, analyses of earthquakes provide tremendous support for the theory. Alternating pieces of veneer are flipped over so they face each other as do the pages within a book. It is accomplished by turning every other veneer leaf over, and arranging it such that the grain opens at. Jun 01, 20 in the canterbury earthquakes brick veneer failures occurred due to lack of bond between the brick and the mortar because the mortar that had been applied was too dry. Glossary of common veneer terms used in the plywood and wood veneer industry. Book match is the most common matching type of veneer, with roughly nine out of 10 spliced veneers falling under book match. This is usually used with rift sliced or quarter sliced veneers. With the range of data available, geologists cannot predict exactly where and when earthquakes will occur.
The veneer joints match and create a mirrored image pattern at the joint line, yielding a maximum continuity of grain. Panel matching is then required to define how the completed veneer face is positioned during production of the panel. Recent testing at branz has confirmed this to be the case. The appearance of the panel can be formal or casual, simple or busy based on the matching choice. Despite the subfreezing weather, many residents abandoned their homes, although others refused. Gamba, senior member, ieee abstractin this paper a survey of the techniques and data sets used to evaluate. I am using the merge into statement to work with some tables, and ive a simple question. Seismicity and inferred quasistatic slip accelerations propagated to the west and to the south during the swarm activity to trigger the occurrence of the largest. Once the veneer is cut, it can be laid up on a panel face in different sorts of matching. Nzs 4210 states that the bond between brick and mortar is the most important single factor affecting brick veneer strength.
Bibliography earthquakes earthquakes about earthquakes. The probability that shear wall drift limits are exceeded for uniform hazard earthquake ground. As applied to wood, bookmatching is usually done with veneer produced in. Prescriptive requirements for the design and construction of anchored brick veneer are currently provided by the masonry standards joint. Finally, a brave new world that readers from twilight to the hunger games will claim as their own. Fire in shredded wood insulation treated to reduce combustibility will burn in a slow, smoldering manner. Tucson, arizona 85701 funding for this project was provided by the federal emergency management agency. Finishing strong veneer technologies says its automation and flexibility make it strong. Consists of effects, to prepare, when it happens, government help and kobe, japan case study tabs text mcleish, e 2007, earthquakes, 1st edn, wayland, london. Background information an earthquake is an occurance where the earth suddenly quickly starts to shake. Bookmatch definition is to match the grains of a pair of sheets of veneer or plywood so that one sheet seems to be the mirror image of the other.
Re,ducing the risks of n onstructural earthquake damage a practical guid,e third edition fe. The process of folding the pasted side of wallpaper over onto itself. Casualties, in addition to the massive destruction of property, make earthquake studies, and earthquake risk assessment, a high priority. Earth planets space, 56, 803811, 2004 repeating earthquakes and quasistatic slip on the plate boundary east off northern honshu, japan toru matsuzawa1, naoki uchida1, toshihiro igarashi2, tomomi okada1, and akira hasegawa1. Where would you expect to find the greatest number of deep earthquakes. Working with colleagues from nasa, a florida state university researcher has published a paper that. Almost 95 percent of the energy released by earthquakes originates in a few relatively narrow zones that wind around the globe. Well defined openings between rings of annual growth, containing gum. Answer choices in this exercise are randomized and will. If the grain is straight, the joints will not be obvious. Bridge design guidelines for earthquakes by lory nora. Pdf numerical analysis of laminated veneer lumber panels. Careful placement of the new structural reinforcement, painted to match the. Despite the fact that the occurrence of large earthquakes in australia is rare, the consequences can be fatal and costly.
Most earthquakes are produced by the rapid release of elastic energy stored in rock that has been subjected to great stress. These veneers installed over a backing of wood or coldformed steel shall be limited to the first story abovegrade plane and shall not exceed 5 inches 127 mm in. The memory of earthquakes highlighted articles elsevier. Pearthree arizona geological survey openfile report 943 january 1994 arizona geological survey 416 w. Veneer matching, panel matching and panel positioning. Attachment of brick veneer in highwind regions december 2005 page 2 of 3 many buildings that exhibited damaged veneer were not in compliance with current building codes. Veneer technolog specializes in face veneer, sheet veneer and edge banding for customers in the hardwood plywood, wood products distribution, furniture and cabinetry industries. Powered by create your own unique website with customizable templates. On a surface the strips look much like mirror images of each other. Earthquakes occur seemingly at random, yet anyone who follows the news carefully will be familiar with the aftershocks that can follow major crumbles. Quizlet flashcards, activities and games help you improve your grades.
Matching selections may be more obvious in some species than in others depending on the natural grain characteristic of that wood species. Matched is a pageturning, dystopian love story, written with the soul of a poet. Slip matching is another type of matching in wood veneers. Alternating strips of veneer from the same log section flitch are turned over so the adjacent leaves appear to open as the pages of a book. Exterior envelope opaque or glazed, roof and wall coverings. Auto suggestions are available once you type at least 3 letters. David schaffs quest to predict earthquakes using ambient noise. Kami garcia and margaret stohl, new york times bestselling authors of beautiful creatures absolutely riveting. Veneer is matched by color but not by grain pattern. Repeating earthquakes and quasistatic slip on the plate boundary east off northern honshu, japan toru matsuzawa1, naoki uchida1, toshihiro igarashi2, tomomi okada1, and akira hasegawa1 1graduate school of science, tohoku university, japan 2earthquake research institute, university of tokyo, japan. The most commonly used method of matching veneers where every other leaf of veneer is turned over or opened like the pages of a book. Each strip is laid out side by side without turning over.
Earthquakes in this section are likely to be devastating. Using repeating earthquakes to correct highprecision earthquake catalogs for timedependent station delays article in bulletin of the seismological society of america 925. Individual earthquakes can claim many thousands of lives. Did you know that hundreds of thousands of earthquakes occur each year, of which only about 10 percent are felt by people. Book match veneer book match is the most common veneer leaf assembly. Reliability of woodframe residential construction subjected to earthquakes. Panel positioning involves the orientation of finished panels during the construction process. See veneer, wholepiece veneer, slip matched veneer, and unmatched veneer. With this process, a sequence of consecutive veneer sheets or matching veneer leaves are each slipped out, one right after the next, like a deck of cards or a fan. David schaffs quest to predict earthquakes using ambient. Failing nonstructural elements such as the stoneveneer window and door.
Repeating earthquakes and quasistatic slip on the plate. Ma 74jseptember 1994 supersedes 1985 edition originally developed by robert reiitherman of scientific service. Veneer matching occurs first and specifies how individual veneer leaves will be joined together on the face of the panel. Stone and masonry veneer shall be installed in accordance with this chapter, table r703. Reducing the risks of nonstructural earthquake damage a practical guide. The paperback of the earthquakes by michael woods, mary b. Synthetic accelerograms due to moderate strong earthquakes 2 extension of midorikawa 1993 procedure for obtaining synthetic accelerograms for large earthquakes. Bookmatching is the practice of matching two or more wood or stone surfaces, so that two adjoining surfaces mirror each other, giving the impression of an opened book. The slow release of stress along a plate boundary can result in an earthquake. Numerical analysis of laminated veneer lumber panels in fire article pdf available in applied mechanics and materials 784. Veneer technologies puts a sleek finish on wood products for cus. Welcome to the 2018 working group on nevada seismic hazards located in the harry reid engineering.
How can i make a matched not matched statement do 2 things. Book matching can create color variation and caution must be taken as. Book matching is used with flat cut, quarter, rift or rotary cut veneer. Veneer species, cut, leaf matchbalance, panel match, and room. As applied to wood, bookmatching is usually done with veneer produced in one of several ways, but can also be done with solid wood. Each leaf is slightly different but related to adjacent leaves, so that different forms of matching can be achieved.
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