Tag: construction

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Archi Octagon

The architecture we see around us has lots of interesting mathematical features. Some are the basis for more complicated calculations. The octagon shape is not that common, but with some formulas the calculations become easier and construction in the real world is more feasible. Well worth to dig a bit deeper into this shape. The geometry of angles and circumference follows rules that have been laid out a long time ago. The webpages explaining this are manifold and it is a project of its own kind to compare them and recommend the best ones. My current favorite is: mathmonks. A reasonable choice is in most cases also wikipedia, the long running amazing knowledge project also for the octagon.

Image: Berlin Europa Center 2025.

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Rich richer

The US economy under Biden had continued to make Americans richer. In an article by Talmon Joseph Smith in the New York Times from 2025-4-3 p. 7 the puzzle that Americans have grown richer, but don’t feel it, has been well explained. The large share of households owning their homes albeit with mortgages from low interest periods have witnessed their increased wealth. However, inflation is eating into their cash available for daily purchases. With another round of tariffs and additional inflationary pressure caused by those, the average person or household doesn’t fell much better off than some years ago. Economic anxiety and our preference for loss aversion or loss avoidance make us react with consumption restrictions to prepare for increased risks as well increased uncertainty about the directions of the whole economy and our very private wealth and consumption patterns. How and when the US economy will get back on track remains to be seen. Higher uncertainty usually reduces investments and with increasing interest rates again the economic recovery might be protracted. The NYT p.7 cites business owners with statements like “we’re not putting our foot on the brake, but we’re taking our foot off the gas.” Betrayel of working class people due to rising unemployment after 3 years of very low unemployment is likely to widen wealth gaps in the US population even further. The rich will get richer, but at high costs to the population as a whole. (Image: ceiling painting in Petit Palais, Paris).

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Design skills

The is a huge B2C or C2B market in connection with home design and adaptations. Nowadays people are inspired by instagram, pinterest, YouTube and TikTok. Additionally, many play around with Apps to create their own images of how they would like to arrange or rearrange their home. Some have taken first steps to include measurements of their home in the design. The compatibility with professional software of the construction sector, however, is a drawback that delays or leads people to go to enterprises that take into account the prior efforts of young lay designers. It is a little bit like an own contribution in home building quite popular among new home builders to alleviate the upfront cash needed for first home acquisition. The younger generation could offer some of their “digital native” skills to bridge the gap in construction and home design. Of course, reworking and precise measurements on the location will still be required as construction has a lot of legal liability issues involved. Cooperation is a form of burden sharing to advance faster and/or with lower costs.

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Bricks and algorithms

Construction as an economic sector has suffered for decades from skill shortages. The PWC study on skill needs in construction and management of digitalization in this sector shows various deficiencies. Labor demand in excess of own training efforts in the related professions is further increasing in coming years. Migrants from across the world have come to Europe to fill the skill shortages and willingness to work in the sector. Population aging increases demand for adaptions of housing and tertiarization of the economy asked for new office space and adaptation of existing ones. 

The skills involved in construction have also evolved. Digitalization and understanding of new technology needs of modern housing increased the level of cognitive skills in the sector enormously. “just let the liquid concrete flow” will no longer suffice. Environmental obligations, renewable energy and design issues had an impact on the sector. 

Many enterprises in this sector have trailed other sectors to adopt strategies like digital pairs of a building or connected manufacturing of facilities with data sharing and compatible software. All this led to the fact that younger employees or university graduates (m/f/d) have preferred other sectors. IT development and applications are interesting and challenging in this sector as well. Logistic arrangements a formidable task as well. 

The claim of too much bureaucracy is just an excuse for lacking digitalization of the sector. Years ago we stated that every task you carry out more than once can be automized. With AI in construction digitalization starts with each singular case as a learning occasion for humans and algorithms supporting us.

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Build Tec

Home construction has turned into the art of isolation. Saving energy is easiest in a well isolated home. Besides the roof the walls, doors and windows are next issue. Isolation inside and/or isolation outside are good points of departure. Heat pumps are the next step that needs attention. This is already a sequence of works that have to be planned well in advance. Electric current or LAN wiring or even fibre are additional features a modern home should be equipped with. Lots of different skills involved that we are unlikely to find in traditional occupations. Networks of enterprises are involved in building technologies. Startups in this area could offer better integrated services to clients to advance energy savings rather than the traditional skill sets spread over multiple trades and occupations. Learning tasks and skill needs are abundant.

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Repair Building

All buildings need repairs from time to time. For most of them the basic structure is solid enough so that isolation or maintenance will do. However, 100 years old buildings that have lived through 2 wars might have deep rooted deficiencies that are not visible at first glance. This can be observed in Berlin near the city center in a popular neighborhood with many visitors in „Schöneberg“ sometimes translated as „pretty hill“. The building at the crossroads seems to have been renovated only a few years ago, but the static of the building is so unstable that the city council has decided to block the whole crossing for circulation due to the danger of an imminent collapse of the building. The neighborhood has mixed feelings. It is great that the danger has been identified in time and blocking the road reduces the nuisance of traffic in the surroundings full of restaurants and cafes. The cover up of the repairs and renovation at the building is shocking as there appears to be just paint over basic structural faults. Construction work has failed to detect and prevent the static risks. An inspectorate that acts promptly to avoid bigger disasters is a societal asset.

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Sectoral Change

The long-term view of sectoral change in France, for example, from 1800-2022 (Cagé and Piketty, 2023 p. 128) allows us to zoom out of our narrow focus of the last few years of economic change. The decline of agriculture is the most remarkable. The reduction of employment in industry and construction has been an ongoing trend as well. Banking, insurances, property and consulting have seen remarkable expansion over these years. Public services, security and legal affairs are still on a moderate rise. Other sectors like education, health, commerce and transport manage to grow equally.
The merit of the comprehensive volume by Cagé and Piketty (2023) is that it is thoroughly data driven and based on quite unique long data series. The data on structural change and just the employment trends depicted below refocus our attention on likely consequences of these changes.
For the 2 authors we should redirect our attention much more to the implications of these trends (like rising inequality) on political conflicts and power struggles. Democracies are at risk, if we continue to ignore these seminal changes of industrial structures and shifts in employment. The traditional strongholds of trade unions and progressive forces in the manufacturing and construction industries as well as in public transport seem to have unaccounted implications for our political systems as well. The volume by Cagé and Piketty (2023) will soon be available in English and reach broader audiences just-in-time for the European Parliament elections in June 2024. Particularly the spatial implications and how the neglect to take into account the fundamental differences between the rural development and structural change needs urgent reconsideration. After the time for reading and working with the data (LINK) is the time for action to preserve our European Dream of peace and social development.

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Concorde

„These were the days my friends, we thought they’d never end …“ And yet the Concorde served for decades as a massively polluting aircraft for those paying or had their flights paid be their enterprises to cross the Atlantic ocean. Yes it was the fastest way, but we learned that it didn’t really make sense. After a technical default with an explosion the entire craze got stopped. Now next to Orly airport the remainders of this undoubted design highlight is exposed. It serves more as a warning that not all technical innovations are viable as commercial or ecological innovations. The delta-design as aircraft is still the most common design children play around with as paper models. Wing designs have made progress to adapt the bent end on each wing. So should do our paper models of them. The Concorde is also a perfect example to learn from concerning the link between “Society and Technology”. Similar mistakes seem to occur still today. “When will we ever learn, when will we ever learn…”.

Concorde near Orly airport France 2023
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Repair 3

Repair is our new mantra. Think of repairing in all domains as of now. Nature is showing us the way how to repair in many ways. Culture is also embracing the shift towards repairing as caring. If we really care about our planet, and there is no planet B, we shall have to repair in many more domains. We are used to repair bicycles, cars, roofs, windows etc. Repairing is never boring. You can improve the performance of a device or building by repairing it, even with relatively small budgets. Isolation of buildings is a good example of investing in upgrades through repairing. Rather than throwing away a functioning heating system repairing it with an energy saving device is enhancing its performance and produces fewer emissions in the short run. Heat pumps are the way forward for new installations. Shifting a sector, heating with gaz, to ensure longer lasting repair and improve options would save a lot of raw materials and CO2 as well. The construction sector has repair work almosts in its DNA, the energy sector will have to make that shift as well. Dare to repair.

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Bauhaus Haus

Zu den Ursprüngen des “Bauhaus” in Weimar gehört das Haus, welches die Feder von Georg Muche entworfen hat. Auch wenn das Bauhaus überwiegend mit Walter Gropius assoziiert wird, ist die Parallele von Georg Muche zu dem französischen Maler und Architekten Le Corbusier frappierend. Beide waren geprägt durch die eigene Malerei und Zeichenkunst. Die Entwürfe für Häuser oder Villen folgten Zeichnungen, die wiederum einer “cognitive map” mit Prinzipen der Konzeption und der Konstruktion folgten. Treu den Ansätzen des Bauhauses verwirklichte Muche bereits in 1923 sein Musterhaus. Modulare Bauweise, preisgünstige Erstellung, aktuelle Technologie, perspektivische Blickwinkel und Lichtspiel. Eine gewisse Parallelität zu der Villa La Roche und Jeanneret von Le Corbusier besteht nicht nur in der zeitlichen Dimension, sondern auch in dem Einfluß von kubistischem Spiel mit Perspektiven in Haus  und auf das Haus. Die von der Malerei herkommenden Architekten entwerfen ihre Räume mit “The painter’s eye“. Vielleicht kommt nicht zuletzt daher der Traum vom Eigenheim, der so prägend bleibt in ganz Europa und der westlichen Welt. Geprägt von den 1910er und frühen 1920er Jahren war kostengünstiges Bauen eine wichtige Rahmenbedingung. Relativ kleine Grundrisse, modular erweiterungsfähig, preiswerte Baustoffe sorgten trotz Schwierigkeiten für rasche Realisierungsmöglichkeiten. Eine gewisse deutsch-französische Parallelität drängt sich auf. LeMonde vom 6.4.2023 beschreibt ausführlich das Dilemma des 21. Jahrhunderts. Der Traum vom eigenen Haus wird für die nächsten Generationen schwieriger zu realisieren sein. Rohstoffpreise, Grundstückspreise, Arbeitslöhne, Kreditzinsen schnellen in die Höhe. Der Traum vom Eigenheim bleibt ein Traum älterer Generationen oder der glücklichen Erben solcher Häuser, fast unerreichbar für Durchschnittsverdienende. “Gemeinsam statt Einsam” ist die noch gültige Schlussfolgerung, die bereits Henning Scherf formuliert hat. Die neue Herausforderung für den Bau war, ist und bleibt die soziale Frage, der wachsenden Ungleichheit entgegen zu wirken.

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Construction

Construction as an industrial sector was growing strongly in the last decade. Corona crises, supply chain disruptions have slowed growth in the last two years, but the sector was still growing in terms of employment. The topic of skill and employee shortages hardened from year to year. In March 2023 the sector has more time to reflect on the somehow rapid, if not sometimes chaotic growth of the previous decade. The macro-economic scenario has changed now. Following on supply chain disruptions, we saw the high inflation rates of raw materials. The war of Russia against Ukraine caused energy prices to soar and eventually come down again. Latest worry is the increase in interest rates to finance construction projects of public, private and the business sector.
The whole sector is known for its economic role of forerunner of economic cycles, up or down. So, what are the prospects? Not so rosy, as the experts explain for example on the expert forum of the Belgian construction forum. The official from the Belgian National Bank announced a rather bleak outlook for the sector. New construction is stalling, but the renovation of buildings, especially for the purpose of reducing energy consumption is still strong and growing. Long-term reduction of emissions keeps the sector busy, thanks to the EU green deal in my opinion. The public, private and business investments in buildings all keep growth from turning negative. 2 big worries remain: (1) skill shortages and the lack of employees signalled in job openings in the sector is high and still rising; (2) the scarcity of women employed in the sector is still trailing most other sectors. Most companies have seen earnings grow over the last decade, sufficient time to build up reserves for the tougher quarters to come. Skill shortages and gender biases are harder to overcome. The Construction Forum in Brussels addressed both topics and tries to convince employers and the younger generation. Construction companies have to work on their male-dominated image was one of the take home messages Hélène de Troostemberg, the Director of Build Up pronounced.
It is not certainly not enough to have a woman as moderator of a panel and an all-female singers group accompanying the presentations. Women as architects, technicians and builders will make the sector even more attractive for the next generation of men as well. Aging of employees in the sector is another tough issue waiting for innovative solutions. Digitalisation of every step in the value chain is an additional necessary step. The leadership and trade unions in the sector are well aware of these facts. Maybe next year women engineers will pilot the robotics demonstration rather than being in charge of building a nice atmosphere with their songs. I must admit I liked the intro song to the Forum: “We build this city on rock ‘n role”, but I am less sure whether rock ‘n role will solve the gender and recruiting issue of the sector. However, naming and framing the problem(s) is already part of the solution.

 

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Masculinities

The exhibition of photos and film on “masculinities,liberation through photography” is an excellent example of how artistic approaches to central social phenomena enrich our understanding. The collection of images on masculinities enlightens and reveals the social construction of masculinity. All persons interested in such basic questions should grab the opportunity to pay a visit to the Barbican Centre in London until May 2020 (Later also in Berlin). Perfect choice of a location as the Barbican Centre represents a fine example of “brutal architecture” in London. This is already worth a visit for those not familiar with such concepts. Prepare to get lost somewhere in the multitude of cultural offerings. It feels like Centre Pompidou in Paris, but has additionally a splendid concert hall.

Depending on the time and location of our upbringing we are subject to different social constructions of masculinity. Browse through family collections of photos from grand fathers, fathers and your own youth and maybe your children. From the perspective of how masculinity has been framed at different epochs and across continents, it is obvious that masculinity just as feminity are constructed by social discourse, social choices and media representations. Make it a choice – nowadays – yes we can !
Read on with a critic published in “The Guardian” or “The Sunday Times“.

masculinity