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Sustainable architecture: innovative and inspiring building design

Sustainable architecture: innovative and inspiring building design

From amazing abodes to centres of care and hard-working offices, we chart some of the world’s best examples of sustainable architecture, buildings that not only look good but also do good. Here is sustainable architecture in innovative and inspiring building design throughout the world as brilliantly covered in this pictures and text article.

The picture above is of the Elephant Museum.

Sustainable architecture: innovative and inspiring building design

Elephant World by Bangkok Project Studio

Brick Observation Tower

Photography: Spaceshift Studio

Elephant World’s architecture nods to both human and elephant needs, showcasing a strong sense of social sustainability but a respect to the environment too. The Wallpaper* Design Awards 2021 Best Sanctuary winner is a design by Thai architect Boonserm Premthada and his practice, Bangkok Project Studio. Premthada worked with local labour and materials to create a complex dedicated to the wellbeing of humans and animals, including an observation tower, a museum and a multifunctional event space. The design blends with the landscape and uses natural materials. For example, the bricks used for the museum were created on-site by local workers using loam found in the area. bangkokprojectstudio.co

Powerhouse Telemark by Snøhetta

Powerhouse Telemark Snohetta

This ultra-sustainable workspace is a building that actually creates more energy than it will consume over its entire lifespan. Architecture studio Snøhetta, together with collaborators R8 Property, Skanska and Asplan Viak, has recently completed the project, Powerhouse Telemark, the fourth energy-positive building in its Powerhouse portfolio. Located in the city of Porsgrunn, the project creates much needed office space. It features solar panels on its roof; natural shading is promoted, while plentiful insulation ensures heat is retained where possible; and heat is stored in the building elements, to be released slowly, while a geothermal well supports heating and cooling. As a result, Powerhouse Telemark was awarded a BREEAM Excellent certification. snohetta.com

Anandaloy by Studio Anna Heringer 

Obel Prize WINNER 2020 Anandaloy by Anna Heringer

German architect Anna Heringer’s Anandaloy project in rural Bangladesh is a successful example of sustainable architecture, both in terms of social and environmental responsibility. The community centre and textile workshop in rural Bangladesh contains a therapy hub for people with disabilities on the ground floor and a fair-trade textile manufacturing workshop for local women on the first floor. Made out of rammed earth and bamboo, the structure explores age-old local building techniques and materials in soft curves and textures that connect with its place and the region’s vernacular. The building recently scooped the prestigious. Obel Award for 2020anna-heringer.com

Treehouse by Olson Kundig

Photography: Nic Lehoux

US architect Tom Kundig, of Seattle practice Olson Kundig, is behind this sustainable teak holiday house in Costa Rica. Called the Treehouse, the private home is built predominantly out of locally harvested teak, and is open to the elements. This makes sense for Kundig’s clients for two reasons: as avid surfers, it gives them a chic version of a basic surfer’s hut; and as environmentalists, their new home ticks a number of sustainability boxes. Spanning three floors, the building is designed to operate passively, and slatted panels keep it open to the outdoors. ‘Our aim was to create a home that is very leaky to the view and light and air,’ says architect Tom Kundig. The structure also has its own rainwater collection system. olsonkundig.com

Additional writing: Clare Dowdy

Bahareya Village by ECOnsult

 Bahareya vilage

Egyptian architect Sarah El Battouty, head of local studio ECOnsult, led the sustainable design of Bahareya Village, an eco-friendly compound for farm workers in the country’s Western Desert. Created to be home to the farming community engaged by organic tea producer Royal Herbs, the complex uses gravel manufactured from recycled construction waste for the base of its minimalist concrete structures. Cacti scattered throughout the campus offer splashes of greenery without compromising on a commitment to water efficiency. And a technique El Battouty borrowed from desert communities – raising the foundations of the buildings to create distance between the floor and therefore the rising heat from the land – reduces indoor temperatures by eight to ten degrees. econsultarch.com

Additional writing: Ijeoma Ndukwe

Cold Spring Residence by Alloy

Della Valle retreat

Photography: Richard Barnes

This minimalist and highly eco-friendly house overlooking the Hudson River Valley is the country home of New York-based Alloy’s principal, architect and developer Jared Della Valle. Named Cold Spring Residence, the house sits on the land as lightly as possible. Della Valle worked with passive house sustainability standards to create his retreat, including solar panels for year-round energy, a well-insulated building envelope and careful management of the site’s water resources. The building is also partly sunken and cannot be seen from the street, aligning with its creator’s desire for a ‘a degree of modesty’, so that the architecture doesn’t compete with the striking surrounding natural landscape. alloyllc.com

Copper Hill by BIG 

Aerial view of the Amager Resource Center in Copenhagen

Photography: courtesy of Amager Resource Center

The Amager Resource Center in Copenhagen, also known as Copenhill, is one of the city’s latest initiatives that put climate action to the forefront. Designed by the Bjarke Ingels Group (BIG), the building is essentially a rubbish burner; yet it’s also so much more than that. The structure houses an artificial ski slope, recreational hiking area and climbing wall on top of the waste-to-energy plant. Built using aluminium blocks, this piece of infrastructure aims to treat 400,000 tonnes of waste annually. The result is supplying 150,000 Danish households with district heating and 70,000 with electricity from non-recyclable waste. big.dk

Flying House by Martand Khosla

Photography: Edmund Sumner

Created by architect Martand Khosla for a Delhi-based family of four, this weekend retreat in India’s Dharamshala is rooted in traditional materials and techniques. Set between farmland and a lush forest on the Dhauladhar mountain ranges of the Himalayas, Flying House has been built using local resources – stone, stabilised mud brick, slate and pine. A lot of the earth and stone dug out from the site during the foundation excavation went back into the construction. Building site wastage was minimised and a lot was recycled, making this house quite literally of its place. The construction uses stabilised mud brick, a method local workers were taught, using equipment from Development Alternatives (a social enterprise for sustainable solutions in India). This way, not only would the local stonemasons be able to build this particular house, but they would be able to master the craft and continue using it in the future. rk-ds.com



6 trends that will influence construction this year

6 trends that will influence construction this year

Welcome to the year that follows the most turbulent year that all countries and sectors of their socio-economic went through. Here is the 2021 outlook: 6 trends that will influence construction this year.

Several factors – some positive, some less so – are poised to shape the industry this year.

By Joe Bousquin

4 January 2021

6 trends that will influence construction this year
Retrieved from Jeremy Gilbert/Flickr.

Here’s some perspective to ring in the new year: “2020 bad, 2021 good.”

That’s the takeaway from construction observers looking ahead at the turn of the year, even as the bleakness of the pandemic surge and record deaths in the U.S. continue to weigh on their minds.

“My expectation is that the U.S. economy will shrink between 4% and 5% in 2020,” said Anirban Basu, chief economist at the Associated Builders and Contractors during a year-end webinar, where he also made the good-bad prognostication quoted above. “But we’re going to come back hard in 2021.”

There are reasons for hope, such as a second coronavirus vaccine being authorized for emergency use and shipped in recent weeks and the $900 billion relief package recently signed by President Trump. But the drivers of optimism among those who track construction are also more specific to the space, while encompassing fundamental shifts in markets and processes that will lead to more broad-based development activity in 2021.

Just listen to Tom Stringer, managing director for site selection and business incentives at professional services firm BDO, whose job is to find suitable development sites for corporate clients who want to build new facilities and offices.

“Site selection tends to be a leading indicator in the economy that businesses are starting to think about capital investments, and our phones have been ringing,” Stringer said. “So if your readers are the folks on the contracting side, well, they’re about to get busy, too.”

Stringer isn’t alone. According to a post-election survey of engineering and construction executives conducted by Deloitte, 68% of respondents characterized the business outlook for the industry as somewhat or very positive.

“We do see pent-up demand sitting out there as we end out 2020 and come into 2021,” said Michelle Meisels, Deloitte’s engineering and construction practice leader.  

That widespread optimism among construction executives is grounded in the reality of several factors – some positive, some less so – that are poised to shape construction in 2021. Here are six of the top factors that will influence the industry in the new year:

Subs on the skids

The coming months and beyond could be particularly hard on subcontractors, and the contractors who will need them once projects pick up again.

“The market is just getting much more competitive for subcontractors, and therefore, sadly, some will go out of business, especially the smaller guys,” Meisels said. “General contractors may need to self-perform a lot of work they would normally sub out, and build those capabilities in house.”

That’s the road Michael Bordes, president of New York City general contractor AA Jedson Company, is already on.

He said during the pandemic, he’s had to pivot from the restaurants and gyms he built previously to focus on affordable housing projects that were still considered essential. But he’s also flipping the script and limiting his risk from subs by handling more work in house.

“We’re self-performing most of the construction tasks ourselves because the subcontractors that are out there are having a very hard time,” said Bordes, noting that affording insurance is one issue subs are struggling with. “The people we’re dealing with may not be transparent about saying we’re having trouble with assurances or we’re short on labor. If you keep it on your payroll, you at least have 95% control.”

Staying safe

Meanwhile, Bordes said he’s focused on keeping his workers safe and healthy by combating complacency and continually reinforcing mitigation strategies, which has become more challenging as the pandemic has worn on. And while he hopes his workers will sign up to get the vaccine, he says he’s not planning to force them to do so if they have reservations about taking it. 

“We know masks work. We know sanitizing on a regular basis, washing your hands and not touching your face works to not get this disease,” Bordes said. “But while we would suggest to employees that it’s important to get the vaccine, we don’t feel we can force them. Some are still cautious about what the side effects might be in the future.”

While the Equal Opportunity Employment Commission, as well as a panel of construction lawyers, recently determined that employers could require workers to be vaccinated with certain exceptions, the implications of forcing workers who object to get inoculated over potential safety concerns is sure to be a challenge for contractors in 2021. 

Hiring for the surge to come

With subs being squeezed, contractors will also surely be challenged to hire enough workers, even in house, when the pent-up demand of mothballed projects are put back into the marketplace once the pandemic is brought under control. At the same time, observers say companies aren’t doing so yet, since many new projects still aren’t coming to market, given the explosion of coronavirus cases going into 2021.

“The story there is that projects are still getting pushed to the right, so companies are not hiring unless they have a job to put someone on,” said Patrick Jones, who leads the architecture, engineering and construction division at Raleigh, North Carolina-based recruiting firm Orion Talent. “They’re not just out there building bench strength.”

He says while experienced superintendents and estimators are still in high demand, companies don’t necessarily want to hire individuals they would have to train and invest in while jobs are still scarce. “We see that hiring for what I would call the entry level roles has slowed,” Jones said.

At the same time, nonresidential construction has only regained 58% of the jobs it lost since the beginning of the pandemicaccording to Ken Simonson, chief economist for the Associated General Contractors of America. In November, he noted, the industry’s unemployment rate was 7.3%, not seasonally adjusted, with 732,000 former construction workers idled. 

On its surface, that may indicate contractors will have

an easier time hiring coming out of the pandemic. But that’s still not likely to be the case, according to Basu.

During his economic forecast in December, Basu asked his audience of more than 1,000 participants how many intended to increase staffing in the coming year, with more than half responding affirmatively. That’s in line with the ABC’s Construction Confidence Index from November, which indicated a majority of firms intended to increase staffing in the next six months.

Given the demand for projects, along with many firms trying to hire workers whenever jobs are finally released in 2021, contractors may experience labor challenges all over again.

“I would predict that many of you will continue to suffer difficulty finding truly motivated and skilled workers,” Basu told his contractor audience. “One thing that has happened in past recessions is that many construction workers who lost their jobs left the construction industry altogether.”

Infrastructure on the agenda

On the bright side, there should be some increased infrastructure and building projects on the horizon.

This is especially true with President-elect Joe Biden pushing his Build Back Better initiative, which is envisioned as a broad spending program that could benefit contractors on multiple fronts.

“He’s looking for a multitrillion-dollar infrastructure bill that includes a broad definition of infrastructure, whether it’s surface transportation, aviation, waterfront, Army Corps, civil works, flood control mitigation projects, clean drinking water, renewable energy projects, K-12 public school construction or broadband,” said Jimmy Christianson, vice president of government relations at AGC. “There’s a lot in there.”

Meisels also sees opportunity for contractors under that kind of program in 2021.

“Infrastructure and public utility projects could possibly see a sharp rebound,” Meisels said. “If the administration comes through and directs funds toward that, you’d see projects that are driven by this government spending.”

Office, manufacturing, distribution projects ahead

Part of that jump-start may already be happening on the private side. Take the activity Stringer, the site selection executive, has been seeing lately.

His clients are calling and expressing interest in expanding offices in tertiary markets away from where their headquarters are in densely populated cities. But they’re also looking to build manufacturing and distribution facilities, to help alleviate some of the vulnerabilities the pandemic brought to light in the just-in-time supply chain. 

“The supply chain issues that were rampant during the start of the crisis really presented significant business opportunities for the unsexy old ways of things like inventory and building warehouses,” Stringer said. “Hopefully, we’ll never be without toilet paper again.”

Indeed, the explosion of e-commerce has caused a boom in the sector. “The most obvious change of the year has been robust development of warehouse and distribution facilities to meet the sudden rise in e-commerce,” said Robert Smietana, CEO at Chicago-based industrial developer and consultant HSA Commercial Real Estate.

For example, CRG, the real estate development and investment arm of Chicago-based Clayco, plans to identify industrial development and acquisition opportunities in cities such as Atlanta, Chicago, Philadelphia, St. Louis and Columbus, Ohio. 

“It’s no secret that e-commerce has been a tailwind to industrial real estate over the last cycle,” said Kevin Scott, vice president of investments and developments for CRG. “But e-commerce users still represent just a fragment of the overall industrial user base. Specialized uses such as cold storage and data centers continue to grow, and we are excited about opportunities there.”

Renewed focus on the environment

Data center construction is one of two top-growth industries for Jones, the construction recruiter, to find specialty contractors. The other? Utility-scale solar.

“Big players in utility-scale solar have been on a growth pattern, and are really kind of hitting their stride in this next year,” Jones said.  “Obviously, the new administration would be beneficial to that as well.”

For example, Fort Lauderdale, Florida-based Moss Construction highlights several of the utility-scale solar installations it has worked on in recent years in its portfolio, and promotes on its website that it is “helping our nation move towards a cleaner energy future.”

That growth has come as renewable energy is becoming cheaper than any new electricity capacity based on fossil fuels, according to sister publication Utility Dive. 

But that opportunity for contractors also illustrates the widening awareness of a broader range of companies focusing on the environment.

For example, contractor giants AECOM and Fluor said on recent conference calls they were experiencing increased interest in their environmental services practices from clients, while Jacobs announced it achieved its net zero carbon goal for its operations and business travel in 2020, with aspirations to be carbon negative by 2030. Balfour Beatty and Lendlease also recently announced carbon-cutting initiatives

“The construction industry is under tremendous pressure to improve their energy use,” said Meisels. “But I also think that construction companies that build capabilities to support green building standards and sustainable efforts by their clients are going to be positioned to thrive. You can’t not address this if you want to be a leader in this space.”

Iraqis slowly rebuild Mosul

Iraqis slowly rebuild Mosul

This is a story of a city that as per Iraqi novelist Inaam Kachachi’s description – Mosul the austere, Mosul the convivial, Mosul the contradictory, Mosul the wounded, bleeding to death. So here is Iraqis slowly rebuild Mosul, with little aid from government per Samya Kullab.

Iraqis slowly rebuild Mosul
Mounds of rubble, remnants of the battle to retake the city three years ago from the Islamic State group, remain in the Old City of Mosul, Iraq Sunday, Nov. 29, 2020. Local officials say Baghdad’s cash-strapped government, struggling with a dire economic crisis fueled by low oil prices and the coronavirus, doesn’t have the funds to launch serious reconstruction efforts. (AP photo/Samya Kullab)
Iraqis slowly rebuild Mosul
A damaged house remains un-repaired three years after Iraqi forces defeated the Islamic State group, in the Old City of Mosul, Iraq Nov. 29, 2020. Mosul remains for many the symbol of the Islamic State group’s reign of terror, the place from where it proclaimed its caliphate in 2014. It’s also where IS made its last stand before the city was freed three years later, after a costly battle that killed thousands and left Mosul, Iraq’s second-largest city, in ruins. (AP Photo/Samya Kullab)
A commercial center re-opened recently with some government assistance to restore. electricity and water services, enabling merchants to return, three years after Iraqi forces defeated Islamic State militants, in the Old City of Mosul, Iraq Nov. 29, 2020. Mosul remains for many the symbol of the Islamic State group’s reign of terror, the place from where it proclaimed its caliphate in 2014. (AP Photo/Samya Kullab)
Musicians play love songs as a small crowd sings along and claps, inside what was an old hostel for traders centuries ago and is now a refurbished commercial center, in Mosul, Iraq, Sunday, Nov. 29, 2020. Mosul remains for many the symbol of the Islamic State group’s reign of terror, the place from where it proclaimed its caliphate in 2014. Under the IS scenes like these were forbidden. (AP Photo/Samya Kullab)
Iraqis slowly rebuild Mosul
Anan Yasoun, one of the few residents to return to the heavily damaged Old City, stands outside her rebuilt home, in Mosul, Iraq, Sunday, Nov. 29, 2020. From afar, Yasoun’s yellow-slab home is an island surrounded by rubble in the historic old part of the Iraqi city of Mosul, for many still a symbol of the Islamic State group’s reign of terror and the place from where it proclaimed its caliphate in 2014. It’s also where IS made its last stand before the city was freed three years later, after a costly battle that killed thousands and left Mosul, Iraq’s second-largest city, in ruins. (AP photo/Samya Kullab)
Iraqis slowly rebuild Mosul
Damaged buildings are surrounded by mounds of rubble three years after Iraqi forces defeated the Islamic State group there, Nov. 29, 2020. Mosul remains for many the symbol of the Islamic State group’s reign of terror, the place from where it proclaimed its caliphate in 2014. It’s also where IS made its last stand before the city was freed three years later, after a costly battle that killed thousands and left Mosul, Iraq’s second-largest city, in ruins. (AP Photo/Samya Kullab)
Mounds of rubble still line the streets and buildings are pock-marked with bullet holes three years after Iraqi forces defeated the Islamic State group, in the Old City of Mosul, Iraq Nov. 29, 2020. Mosul remains for many the symbol of the IS group’s reign of terror, the place from where it proclaimed its caliphate in 2014. It’s also where IS made its last stand before the city was freed three years later, after a costly battle that killed thousands and left Mosul, Iraq’s second-largest city, in ruins. (AP Photo/Samya Kullab)
Ammar Mouwfaq, 70, stands inside his soap shop in the Old City of Mosul, Iraq, Sunday, Nov. 29, 2020. Mouwfaq inherited the business in 1955 and for decades his family have imported olive soap from Aleppo, Syria, a trade that has dated back hundreds of years. That came to a stop when the Islamic State took control of the area in 2014. (AP photo/Samya Kullab)

MOSUL, Iraq (AP) — Anan Yasoun rebuilt her home with yellow cement slabs amid the rubble of Mosul, a brightly colored manifestation of resilience in a city that for many remains synonymous with the Islamic State group’s reign of terror.

In the three years since Iraqi forces, backed by a U.S.-led coalition, liberated Mosul from the militants, Yasoun painstakingly saved money that her husband earned from carting vegetables in the city. They had just enough to restore the walls of their destroyed home; money for the floors was a gift from her dying father, the roof a loan that is still outstanding.

Yasoun didn’t even mind the bright yellow exterior — paint donated by a relative. “I just wanted a house,” said the 40-year-old mother of two.

The mounds of debris around her bear witness to the violence Iraq’s second-largest city has endured. From Mosul, IS had proclaimed its caliphate in 2014. Three years later, Iraqi forces backed by a U.S.-led coalition liberated the city in a grueling battle that killed thousands and left Mosul in ruins.

Such resilience is apparent elsewhere in the city, at a time when Baghdad’s cash-strapped government fails to fund reconstruction efforts and IS is becoming more active across the disputed territories of northern Iraq.

Life is slowly coming back to Mosul these days: merchants are busy in their shops, local musicians again serenade small, enthralled crowds. At night, the city lights gleam as restaurant patrons spill out onto the streets.

The U.N. has estimated that over 8,000 Mosul homes were destroyed in intense airstrikes to root out IS. The nine-month operation left at least 9,000 dead, according to an AP investigation.

Memories of the group’s brutality still haunt locals, who remember a time when the city squares were used for the public beheading of those who dared violate the militants’ rules.

The Old City on the west bank of the Tigris River, once the jewel of Mosul, remains in ruins even as newer parts of the city have seen a cautious recovery. The revival, the residents say, is mostly their own doing.

“I didn’t see a single dollar from the government,” said Ahmed Sarhan, who runs a family coffee business.

Antique coffee pots, called dallahs, line the entrance to his shop, which has been trading coffee for 120 years. An aging mortar and pestle, used by Sarhan’s forefathers to grind beans, sits in his office as evidence of his family’s storied past.

“After the liberation, it was complete chaos. No one had any money. The economy was zero,” he said. His business raked in a measly 50,000 Iraqi dinars a day, or around $40. Now, he makes closer to about $2,500.

But even as Sarhan and other merchants are starting to see profits — despite the impact of the coronavirus pandemic — ordinary laborers are struggling. Sarhan employs 28 workers, each getting about $8 a day.

“It is nothing … they will never be able to rebuild their homes,” he says.

Since the ouster of IS in 2017, the task of rebuilding Mosul has been painfully slow. Delays have been caused by lack of coherent governance at the provincial level; the governor of Nineveh province, which includes Mosul, has been replaced three times since liberation.

With no central authority to coordinate, a tangled web of entities overseeing reconstruction work — from the local, provincial and federal government to international organizations and aid groups — has added to the chaos.

The government has made progress on larger infrastructure projects and restored basic services to the city, but much remains unfinished.

Funds earmarked for reconstruction by the World Bank were diverted to help the federal government fight the coronavirus as state coffers dwindled with plunging oil prices. Meanwhile, at least 16,000 Mosul residents appealed for government cash assistance to rebuild their homes.

Only 2,000 received financial assistance, said Zuhair al-Araji, the mayor of Mosul district.

“There’s no money,” he said. “They have to rebuild on their own.”

Mosul residents eye government policies with suspicion and suspect local officials are too corrupt to help them.

“Whatever funds are provided, they will steal it,” said Ammar Mouwfaq, who spent all his savings to re-open his soap shop in the city last year.

A photo of his father hangs inside the shop, which he took over in the 1970s. Neat stacks of the region’s famous olive oil soap, imported from the Syrian city of Aleppo, tower above him.

“What you see now, I did alone,” he added.

On one thoroughfare the ruins of cinemas bombed by IS — the militant group’s strict interpretation of Islam banned such forms of entertainment — are a stark contrast to the shops and restaurants abuzz with customers.

The Old City, with its labyrinth of narrow streets dating back to the Middle Ages, now serves as an eerie museum of IS horrors. Misshapen iron rods jut out of what’s left of houses they were designed to fortify. Smashed pieces of alabaster stone and masonry, once extolled by historians for architectural significance, lie among the debris. Signs of a former life — a pair of women’s shoes, a notebook covered in hearts, shells from exploded ammunition — are untouched.

“Demolition is forbidden” reads a graffiti written on a slab of wall surrounded by rubble, a testament to Mosul’s unwavering dark humor.

The Mosul Museum, where IS militants filmed themselves smashing priceless antiquities to dust, partially re-opened in January. But apart from occasional contemporary art exhibits such as that of Iraqi sculptor Omer Qais last month, there is nothing to see.

On the other side of town, Sarhan, the coffee trader, invites anyone who cares to see his collection of antique swords, plates and bowls he painstakingly hunted down. In the 12th century, Mosul was an important hub for trade; a century later, its intricate metalwork rose to prominence.

“This is our history,” said Sarhan, holding up a rusting bronze plate, engraved with 1202, the year it was made.

“If I don’t protect it, who will?”

Skyscrapers Will Be Built Like Sponges

Skyscrapers Will Be Built Like Sponges

Caroline Delbert tells us The Next Generation of Skyscrapers Will Be Built Like Sponges and sheds some light on Why the animal’s strange skeleton is crucial to the future of construction.


13 October 2020marine sponge inspires skyscraper constructionOZGUR DONMAZ/GETTY/MATHEUS FERNANDES/HARVARD SEAS

The next generation of skyscrapers could be, well, spongey. Researchers at Harvard University’s Wyss Institute for Biologically Inspired Engineering and John A. Paulson School of Engineering and Applied Sciences say a lattice reinforced with diagonals, inspired by the structures built by sponges, could mean lighter, but stronger skyscrapers and bridges.

Sponges are wild. They’re not just alive—they’re resilient predators that reproduce sexually, despite having no organs or tissues or even a traditional “inside” of their body structures. In a way, they’re living structures already, and their sturdiness is what helps them survive.

The researchers explain in their new paper:

“The predominantly deep-sea hexactinellid sponges are known for their ability to construct remarkably complex skeletons from amorphous hydrated silica. The skeletal system of one such species of sponge, Euplectella aspergillum, consists of a square-grid-like architecture overlaid with a double set of diagonal bracings, creating a chequerboard-like pattern of open and closed cells.”

Beginning with this structure as a guide, the scientists built a 3D physics model and put the sponge and a selection of other traditional building types through the ringer. “[U]sing a combination of finite element simulations and mechanical tests on 3D-printed specimens of different lattice geometries, we show that the sponge’s diagonal reinforcement strategy achieves the highest buckling resistance for a given amount of material,” they conclude.

Existing things use both square and diagonal lattices depending on the item. If you’ve owned enough plastic milk crates in your life, you’ve likely seen both structures just in those designs.ADVERTISEMENT – CONTINUE READING BELOWhttps://dc349419a6f5a80cdd0dfe662fdc99d4.safeframe.googlesyndication.com/safeframe/1-0-37/html/container.htmlhttps://dc349419a6f5a80cdd0dfe662fdc99d4.safeframe.googlesyndication.com/safeframe/1-0-37/html/container.html

composite rendering that transitions from a glassy sponge skeleton on the left to a welded rebar based lattice on the right

Composite rendering that transitions from a glassy sponge skeleton on the left to a welded rebar-based lattice on the right. PETER ALLEN, RYAN ALLEN, AND JAMES C. WEAVER/HARVARD SEAS

But the sponge-inspired lattice is double layered, resulting in something more like a basket weave you may have seen on the seat of a wooden chair. By testing the structural strength of the sponge, researchers have combined the best of building with the best of weaving, in a way.

The most important takeaway, they say, could be to build the same strength and size of building, but with less building materials. They could also just broadly improve the materials used for less optimal designs, especially in infrastructure like bridges. The scientists explain:

“Our results demonstrate that lessons learned from the study of sponge skeletal systems can be exploited for the realization of square lattice geometries that are geometrically optimized to avoid global structural buckling, with implications for improved material use in modern infrastructural applications.”

Indeed, they’ve already applied for the patent.

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3D-printed Buildings from Soil

3D-printed Buildings from Soil

Eco-friendly technology could potentially replace concrete and revolutionise sector, reports Alex Mistlin, on 21 August 2020, for Scientists created 3D-printed buildings from soil.

Scientists have developed a method to 3D-print greener buildings using local soil that they say has the potential to revolutionise the construction industry.

The technology is designed to be a sustainable alternative to concrete, which accounts for approximately 7% of carbon dioxide emissions, according to the International Energy Agency.

 A 3D-printed building in Dubai. The technology has been used to produce entire architectural facades. Photograph: Satish Kumar/Reuters

Sarbajit Banerjee, a professor of chemistry and materials science and engineering at Texas A&M University, said 3D printing enabled a versatility that allowed them to print entire architectural facades, although getting such structures to meet existing building regulations remained a significant challenge.

Concrete remains the primary material used in many construction projects but it cannot be recycled and requires a lot of energy to mix and transport. The research team’s aim is to print structures using the type of soil that can be found in any garden.

“While the widespread use of concrete has democratised access to housing and enabled the growth of cities, this has come at a considerable environmental cost,” said Banerjee.

“The move to 3D-print concrete threatens to exacerbate this problem. However, we envision a new paradigm of construction that uses naturally sourced materials. Using such materials will further pave the way for building designs that are specifically adapted to the needs of local climates, instead of cookie-cutter houses.

“We see this as a means of providing dignified habitats to some of the neediest populations across the world.”

What’s more, the use of local materials would reduce the need to transport concrete long distances, further reducing the environmental impact of the buildings.

The research team’s plan to replace concrete with the earth beneath our feet depends on their ability to improve soil’s load-bearing capabilities, to which Banerjee said they “are making excellent progress”.

Once they have a clearer idea of the limits of the technology, Banerjee and his team plan to investigate how it might allow for building on other planets.

“We see this research not just as a means of replacing concrete but allowing for construction in difficult environments. For instance, we have worked on addressing the problem of building all-weather roads in the subarctic. [The technology] could one day be used beyond Earth, to create settlements on the moon or even Mars.”

Here is below the World’s Largest 3D Printed House: by Apis Cor in Dubai

If you hear of an exciting or innovative building project, there is a high likelihood it will involve Dubai. Dubai have been championing ambitious architectural projects for years, and have recently made the bold move of aiming to have 25% of new buildings 3D printed by 2030.

This administrative building comprises two floors, featuring beautiful 3D printed architecture born out of an ongoing collaboration between Russian 3D printed house company Apis Cor and the Dubai Municipality.

We expect much more to come from Apis Cor in Dubai, as this building is considered by them to be just a test for larger 3D printed house projects for the future. It is claimed to have been to test whether Apis Cor’s concrete 3D printer could print a building in Dubai’s heat — and passed with flying colours.

 

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